To start, Ozone is the layer of the earth that protects us from UV rays (more specifically UVC and mostly UVB rays). It is found in the atmosphere however the area where ozone is found is determined by whether it’s good or bad. In the stratosphere or the upper layer it’s good; however ozone located in the troposphere is a secondary pollutant and is harmful to humans. The chemical composition is O3 which is three oxygen atoms. The ozone hole (which is currently located over Antarctica) was caused/created by chlorofluorocarbons or CFCs. This compound is a man made chemical that was previously found in aerosol spray cans, refrigerators, and air conditioners. This was such a harmful compound being mass produced that by the end of the 1980s approximately 180 nations had agreed to create the Montreal Protocol which cut the production of CFCs in half for all household items. After its initial signing, many products soon had a label saying “contains no CFC chemicals.” Its resounding success allowed the ozone layer to slowly reconfigure itself due to the fact that the ozone chemical can self reproduce. In my personal life the ozone layer is extremely important to human survival because if the ozone layer had deteriorated up till now, the ozone won’t be able to protect us from the UV rays that can cause a form of skin cancer, cause cataracts, blindness and premature aging. I actually found this interesting because previously I only knew that the ozone was a chemical I never researched its long term effects or global impact. I suppose ill use this information to teach my children what’s happening in terms of this environmental topic, ill also tell my family and friends to put SPF 15 sun block to protect themselves from sunburn or worse, and ill limit my time in general during activities in the sun.
What Mr. Fox has been teaching and informing us about Ozone has been nothing but moral changing and informative. The Ozone is located in the Stratosphere and troposphere and it protects us humans and living organisms from our Suns' carcinogenic UV rays in which can be lethal and life threatening. Ozone is composed of three oxygen atoms which are O3. This differs from our level of oxygen because instead of two oxygen atoms we have two. The ozone hole in which is currently above Antarctica is slowly depleting ice caps in which brings serious consequences to our environment and well being. The ozone hole can keep enlarging us humans don't fix our morals and contribute to the destruction of O3 particles by us using Chlorofluorocarbons also known as CFC's in which is a compound found in aerosol spray cans, air conditioners ,and refrigerators. CFC compound consists of chlorine monoxide that break up the three oxygen atoms to two oxygen atoms, then that one chlorine atom breaks up with the two oxygen atom to destroy more ozone. This negatively affects us humans because if more CFC is produced, eventually chlorine atoms will destroy ozone making the hole much bigger and damaging our stable living habitat. My understanding of Ozone has changed this past week because i didn't realize how much of a threat is can be if Ozone depletion starts to occur. This information has also helped me understand the documentary "An Inconvenient Truth" by Al Gore which talks about our bad morals and Ozone depletion predictions and the effects it brings if occurs. Now I’ve become more aware and for the Montreal Protocol which was a treaty passed by 190 nations to stop the production of CFC that is causing our ozone to deplete. Me by far to positively contribute to our ozone depletion have stop buying products that don’t have an CFC approval, and stop using my air conditioner in order to stop chlorofluorocarbons from destroying ozone atoms.
The ozone layer is located in the stratosphere, the secondary ozone pollutant is found in the troposphere. Ozone is a gas made of molecules with 3 atoms, O3. The ozone layer is a barrier that absorbs the sun’s powerful UV rays. The layer protects the most harmful ray C exposure to Earth. UV rays A and B are exposed to Earth. UV rays are carcinogenic; it can be dangerous to humans because it can lead to skin cancer, damage to the eyes, and cataracts. With this, individuals are urged to wear sun block daily.
The Ozone hole which is located over the Antarctic is rapidly destroying by chemical processes such as chlorofluorocarbons (CFCs). CFCs are ozone depleting chemicals that can be found in spray cans and refrigerators. The ozone depleting chemicals travel to Earth’s stratosphere, then the UV rays split the CFCs into two oxygen atoms and the chlorine and bromine react with the ozone, breaking it apart. When the chlorine and sunlight come in contact, it destroys thousands of ozone molecules. During the 20th century, ozone depletion has become a bigger problem because humans began to use ozone-depleting chemicals; the Montreal Protocol was a sign bill by 190 countries to stop the CFCs production. Since the Montreal Protocol, the ozone has been recovering because researchers have found environmentally safe replacement for CFCs.
I always knew the Ozone depletion was “bad” but I never thought of all the impact it has on Earth. This week I learned a lot about the actual ozone layer and the ozone hole. I learned about the impacts of UV rays to the Earth and humans. Personally, I am now aware of actions I should and should not take to help protect the Earth and help the ozone replenish. Although the ozone layer protects the harmful UV ray C from coming to Earth, UV rays A and B are still exposed to Humans. With this in mind, I realized that I should check my UV index before I got outside and wear sunscreen daily.
"Slip" on a t-shirt, "slop" on some sunscreen and "slap" on a hat... Ozone depletion is a bigger deal in the Southern Hemisphere because it is very close to the ozone hole that forms over the South Pole at this time every year, the ozone is so thin that news include a five minute sunburn alerts. Chlorofluorocarbons are being released from refrigerators, air conditioners, and fire supplies. Then UV radiation hits the CFC's which the releases the chlorine atom, then once an ozone touches the chlorine it becomes an oxygen atom once again. Finally the oxygen that was floating touches a group of 2 oxygen then it becomes a ozone atom again. Because of the UV radiation they may cause different skin cancer types like Basal Cell Corcinoma (BCC) which is slow growing (15% of skin cancer) and is treatable. Then Squamous Cell Carcinoma (SCC) which accounts for about 20% of skin cancer and can be cured if treated early. And also Melanoma which spreads away from the source and is the most deadly form of skin cancer traced to occasional sunburning.
During this week in Environmental Science class we learned about the ozone hole. The ozone layer is a barrier that absorbs the sun’s powerful UV rays. Ozone is a gas made of oxygen molecules with 3 atoms, known as O3. The ozone layer is located in the stratosphere however, the secondary ozone pollutant is found in the troposphere. The ozone layer protects the most harmful ray C exposure to Earth. UV rays A and B are exposed to Earth, however, the ozone hole and too much unprotected exposure to the sun can prevent the protection. To stay protected from exposure from dangerous UV rays, I advise wear sun block no matter what skin color you are. UV rays are carcinogenic; it can be dangerous to humans because it can lead to skin cancer, cause eye damage, and cataracts.
The Ozone hole is located over the Antarctic/ the ozone hole was created by chemical processes such as chlorofluorocarbons (CFCs) which destroyed a 1/3 of the ozone. CFCs are ozone depleting chemicals that can be found in spray cans, air conditioners and refrigerators. The ozone depleting chemicals travel to Earth’s stratosphere, then the UV rays split the CFCs into two oxygen atoms and the chlorine and bromine react with the ozone, breaking it apart. When the chlorine and sunlight contact, it destroys thousands of ozone molecules. The hole in the ozone layer would have been much worse if the Montreal Protocol was not signed to cut the production of CFCs in all products. Before the 1980’s, CFCs was causing harmful compounds into the atmosphere. After 1980, 180 nations had agreed to create the Montreal. Products that once contained or never contained CFCs now state “contains no CFC chemicals.” So that the public can be aware that the product they are using is not illegal and is safe for the environment. As a child, I always heard about the ozone layer but never really knew exactly how it formed and what it really was. I always heard about the ozone layer hole and how it causes global warming and health issues that leads to worries me because it impacts me and the people around me. As we started learning about the ozone layer I became less worried because it has gotten better and acts like the Montreal Protocol were created that I has no idea about. The ozone hole has gotten better and I believe it will continue to get better. What would like be like without ozone? Everyone would have skin cancer and the earth will be very hot; no more winters. However, by removing harmful chemicals like CFCs, we won’t have to worry about the Ozone layer worsen, it would fix completely one day. Until then, I would make sure I tell everyone to wear sun screen to protect themselves from the suns UV rays because if not, you can get a skin cancer.
The Ozone is located in the Stratosphere and troposphere and it protects us humans and living organisms from our Suns' carcinogenic UV rays in which can be lethal and life threatening. Ozone is composed of three oxygen atoms which are O3, ozone hole is currently located over Antarctica is being destryoed by chlorofluorocarbons or CFCs. CFCs are ozone depleting chemicals that can be found in spray cans and refrigerators. The ozone depleting chemicals travel to Earth’s stratosphere, then the UV rays split the CFCs into two oxygen atoms and the chlorine and bromine react with the ozone, breaking it apart. This week in environmental class we been learning about the ozone, and in my opinion I think that the ozone depletion is bad and good because t has many impact on the Earth but at the same time there are benefits. For example the impact on UV rays to human and the Earth, because of this when the weather is hot we need to wear sunscreen to protect our skin. Another example is that without the ozone then everyone would have skin cancer and the earth will be very hot.
“The Ozone Hole” I used to be one of those individuals that thought that the Ozone hole wasn't really a big deal. I thought all it did was protect us from the suns heat. After classes I began how important the Ozone layer is for me and everyone else. I began caring. I did not look forward to more ozone depletion and became very grateful for the scientist who had discovered the Ozone hole. If it wasn't for this discovery our poor Ozone layer would have been depleted by a huge amount. Imagine a world with 3 times as less Ozone as today!
Why is the Ozone layer important you may ask? The Ozone layer in the Stratosphere protects us from the sun's UV rays. I learned that 3 different types of rays are exposed from the sun. UV B, UV C, and UV A. UV B and expecially UV C are very harmful rays if your body gets exposed to these rays to much. Did you know that the Ozone layer is like the Earth's natural sunscreen? The Ozone layer manages to block UV C the most harmful ray automatically. This may not seem like a big deal to you since you may not know the consequences of exposure to these harmful rays, such as I was. I started caring about the Ozone hole when I found out it protects us from skin cancers such as basal cell carcinoma, squamous cell carcinoma, and melanoma and cataracts on our eyes. I saw that the Ozone hole protects us from death and disabilities. Its like the Earth cares about us, than we do ourselves if we don't help protect Earth's Ozone layer. I found myself thinking why are we hurting something that protects us?
The big Ozone hole is currently placed around the Antarctic. The size of the Ozone hole is about 1/3 of the Ozone's total ozone! What has caused this depletion was the chemicals released from humans such as CFCS and Chlorine exposure to the atmosphere. CFC’s take about 5-6 years to actually reach the stratosphere where the Ozone layer is located. When the CFC’s roam around the stratosphere they are then broken up by UV radiation. When they are broken up these CFC’s eventually release a chlorine atom. One clorine atom attacks the ozone molecule (O3) due to the fact it breaks the Ozone layer apart. This is a major factor that has caused the Ozone thinning on Antarctica.
Then I found out that we are actually helping replenishing the Ozone hole! I must admit I felt pretty happy that we can actually replenish the amount of Ozone in the Ozone layer in as little as 50 years! The Montreal Protocol is one way that has been helping the Earth's natural sunscreen. It was a world wide agreement to ban the production of CFC’s many many countries has agreed to sign it. It has been revised five times through the years of 1990-1999 which helped strengthen it and help ban CFC’s from air fresheners, hair products, refrigerators and more.
But hey, the Earth shouldn't do all the work. You should protect yourselves as well from the Sun too. Wear sunscreen, Shades, hats, and clothes that hide your skin as well.
First of all We learned that Ozone is the layer of the earth that protects us from UV rays the UVC and UVB rays.Is located in the stratosphere and also in the troposphere.Ozone is made of 3 atoms of oxygen chemicals. The ozone hole which is located in the Antarctica , CFC's (Chlorofluorocarbons) is the chemical that cause the hole in Antarctica and is causing ice caps and that could cause into dangerous things to our environment and increase global warming. . Some of the CFC's are cause by , refrigerators, aerosols spray cans,air conditioner and much more. If more CFC's is produced it would harm the zone layer, and the ozone is what protect us from UVC and UV rays. Now im more aware of what is really happening, and i would start to contribute by not using CFC's chemicals because it affects our planet and health. But now since a act has passed called the Montreal Protocol by 190 nations to stop the use of CFC's, now i think that our state really getting to action to stop the use of CFC's. I believe that by this act this chemicals are not going to harm the ozone layer and our environment Because y people now are going to realize the dangerous things that cause the use of CFC's
Before I knew little to nothing of what the ozone hole was and its purpose. I knew there was a layer in the atmosphere that was called ozone, and its was depleting other then that I didn't know its purpose, reason of the reasons why the ozone hole was such a big dilemma. In the last couple of weeks I have learn tremendously of the effects of ozone, and the cause of the ozone layer.
The ozone layer is found in the stratosphere, it is used to block the sun’s powerful UV radiation. This layer protects the most dangerous radiations UV C and UV B, but still allows UV A and some of UV B to go through, this is dangerous because UV radiation, like any other type of rays is a carcinogen. UV radiation carcinogens can lead to three types of skin cancer basal cell carcinoma, squamous cell carcinoma, and melanoma, it can also lead to cataracts on ones eyes. With out proper protection of the sun anyone can be at risk, if they do not use sunscreen, sun glasses, and hats.
Very recently, over the last couple of years this has become a bigger concern because of the reduction of ozone in the ozone layer causing a metaphorical hole, that is really the massive depletion of ozone in one area. Scientist have discovered a hole over Antarctica, that was rapidly increased by the production of CFCs going to the stratosphere. CFCs is a chemical called chlorofluorocarbons, that is found in refrigerators and spray cans. CFCs are very harmful to the environment because they are large contributors to ozone depletion. When CFCs travel to the stratosphere and are exposed to UV rays, they then spilt into two oxygen atoms, bromine and chlorine. When chlorine and bromine mix they break down the the ozone atoms, because ozone gas is made up pf 3 oxygen atoms and these chemicals break apart the atoms turning them in to oxygen. This process continues to cycle and then depletion of the ozone is created, in order for this process to happen cold temperature like in Antarctica have to be in play. To reduce the increase and spread of the ozone hole 190 countries sighed the Montreal Protocol, and promised to stop the production of CFCs and used supplemental chemicals in refrigerators and spray cans.
Even though the change hasn’t been drastic the ozone hole is slowly improving because it takes a long time to restore. Now we should try to focus on reducing the ozone pollutant that is harming us directly, by trying to stop the pollution of emission in cars and other sources.
So next time think two before leaving your home unprotected from the sun!
This past week we have been learning about the ozone hole. Ozone is created by three atoms such as nitrogen oxides and volatile organic compounds. These compounds are mainly found in the stratosphere and sometimes in the troposphere but are more dangerous. The reason why the ozone is important is because it protects us from UVB and UVC rays which are what is released from the sun. What I found interesting is that if we didn’t have the ozone layer then it would have strong effects on people since it protects us from the rays. If human are exposed to these rays then it can cause cancer such as Basal cell carcinoma which is 75% treatable, squamous carcinoma cell 20% is treatable but has to be at an early stage, and Melanoma which 6% and it easily spreads (deadly). I also found interesting that the states surrounding the Antarctic are at the most risk because they are closer to the ozone hole. These places have something called the UV index which shows the level of how much the rays are harmful on an hourly basis. They ensure the people to protect themselves by wearing sun screen, wearing hats, and sunglasses because of eyes are exposed then it can cause cataracts. I always knew that having the ozone layer was very important and I also knew that if the ozone hole got any bigger that it can affect the climate which can rise sea levels but I never knew why, how, and the other effects of the ozone hole expanded. Now that I know a bit more than I did about the ozone hole I care more about it because it was something I thought about it as something that I can’t really so it doesn’t really affect me but now I know that it really does affect me in the long run. I wonder if the actions that are taken to reduce the ozone hole from expanding are actually making a difference. How long would it take for it to get smaller?
This week in Enviromental Science we learned about the Ozone layer. The Ozone layer protects us from UV rays from the sun, These rays can be very harmful so when scientist found out that there was a hole in the Ozone layer over antartica many people were worried and others didnt believe it. Many people such as journalist and other scientist thought that all of this was a lie. Then after finding out that many of these effcts on the Ozone layer were because of human activities. refrigerators and air conditioners let out something called cfc which is a chemical that helps depletes the Ozone layer. A whole in the Ozone layer can cause many affects such as skin cancer. There are three types of skin cancer 1)Basal Cell Carcinoma, 2) Squamous Cell Carinoma and 3) Melanoma, all of these are different types of cancer Melonoma is the most dangerous. We can't blame these issues on the Ozone its been imporving since the signing of the Montreal Protocol and many people have taken it upon themselves to help save the planet but things you can do to protect yourself from skin cancer is do things such as wear sunscreen and suglasses.
Before I learned about the ozone hole in class, I didn’t really know that much about it to begin with. I only knew that it was just awful. I didn’t even know that ozone is a pollutant when it’s in the troposphere.
To know about the ozone hole you should probably know what ozone is. Ozone is a molecule made up by three oxygen atoms. Ozone can be found in motor vehicles exhaust, industrial emissions, in the troposphere and the stratosphere. When in the troposphere ozone is a pollutant that has negative effects on human health. It can cause wheezing, permanent lung damage, inflammation and aggravation of asthma, but ozone is not all bad.
When ozone is in the stratosphere it forms a layer called the ozone layer. The ozone layer is important tour environment. It helps protect us from the sun’s powerful UV rays, such as UV B and C rays. UV A rays are the most harmless and the only rays able to go through the ozone layer. If we’re exposed to a huge amount of UV B rays we can get skin cancer.
The depletion of the ozone layer is called the ozone hole. The main cause of the ozone hole is CFCs (chlorofluorocarbons), which can be found in aerosol cans and refrigerators before the Montreal Protocol was established. The Montreal Protocol signed by 190 countries established an agreement of no more production of CFCs. CFCs when in the stratosphere release chlorine which separate ozone molecules by attracting one oxygen atom turning the ozone molecule into an oxygen molecule. The chlorine and the oxygen atom will form a chlorine monoxide molecule. The new molecule won’t last long though. The two atoms will later split causing the chlorine atom to be free and split other ozone atoms apart.
The Ozone hole can be found over the continent of Antarctica. The reason is because when temperatures are below -78°C, thin clouds of ice, nitric acid, and sulfuric acid are formed, chemical reactions on the surface of ice crystals in the clouds release active forms of CFCs.
Thanks to the Montreal Protocol though the ozone layer is starting to restore itself and maybe fully restore in about 50-60 years. With no production of CFCs from the 190 countries who signed the protocol, the ozone hole should cease to exist in that amount of time.
Before learning about the ozone hole in class I knew nothing about it. Now I know so much about it and the importance the ozone layer plays in our daily lives. The problem of the ozone hole seems to have been solved, but we still need to protect ourselves from the sun’s harmful UV rays, which mean to wear sun block of at least SPF 15 and even walk out with umbrellas on really hot sunny days.
Before learning anything about ozone I thought it was just this huge problem that was going to end society. The truth is people emphasize too much on the negative things and not on the positive that can be done. The ozone hole located in the stratosphere mostly above Antarctica is a problem because the bigger the whole gets the more UV rays (UVB UVA) can reach earth. Ozone is used a sheer to help protect the earth from the suns rays which can cause cancer and cataracts. SO how did the ozone whole get there in the first place? Scientist believes we human have caused the ozone hole by putting CFC in the air CFC contain CL which is the main thing tat brakes down Ozone. Ozone is made off O3, which are three ozone molecules together. After the cfc are put in to the air and in to our atmosphere the CL starts to brake down all the O3 molecules making the O2 the oxygen that we breath. After it has become CLO the oxygen atom then attaches to a single O leaving the CL alone to brake down another O3. One CL can destroy millions of O3. Countries where noticing CFC where becoming a problem contributing to the depletion of the ozone layers, so they came up with the Montreal Protocol Which meant no CFC could be used. After the protocol there has been an improvement in the ozone hole but CFC last hundreds of year in the air. Therefore it’s going to be a while until we notice the hole back to normal. Until he hole is back to normal there are many precautions we can take in order to protect are self from UV rays like "Slipping on a t-shirt, "slapping on some sunscreen and "slapping" on a hat.
The ozone hole is not the only problem that has to do with ozone but Ozone in the air we breath as well. Ozone in the air we breathe is considered a pollutant. Which is harmful for us. “Troposphere ozone is a greenhouse gas and initiates the chemical removal of methane and other hydrocarbons from the atmosphere” There are things we can do to stop this pollutant as well. We can start doing green project and looking for better innovations like scrubbers.
Ozone is a molecule made made out of three oxygen atoms. Ozone is created by sunlight, nitrogen oxide, and volatile organic compound. Depending on where ozone is created its either harmful or beneficial. When ozone is is created in the troposphere, where the oxygen humans breath is located, ozone is harmful to people, animals, and plants respiratory system. When ozone is located in the stratosphere, it is beneficial because it creates a ozone layer which protects humans, plants, and animals from the sun’s harmful rays that can cause skin cells mutation, and cancer. The ozone layer is important because without it the earth’s ice capsules would melt and drown half of the earth’s land. The sun ray would finish the job cause humans to get cancer and drying the earth’s water.
In 1980, 70 % of the ozone layer decreased caused by chlorofluorocarbons (CFCs): released by refrigerators, aerosol spray cans, and air conditioners. CFCs would be released by theses sources and take about five years to reach the stratosphere. Once reaching the stratosphere, the sun’s rays cause the CFCs molecule to release a chlorine atom. Than, once the chlorine atom torches a ozone molecule it takes one of the oxygen atom form the ozone molecule creating a oxygen molecule, and a chlorine monoxide molecular. Finally, when the chlorine monoxide molecular meets a ox-gen atom, it releases the oxygen atom to make a oxygen molecule. The chlorine atom is once more free to break apart other ozone molecule and keep creating oxygen molecules. This is important because the CFCs were causing a “hole” in the ozone layer, and effecting the ice capsules in Antarctica.
Before knowing the consequences of the whole hole on living organism, and the earth, I did not think much of it. Know I believe that testing the earth for harmful chemicals and making sure that CFCs are no released into the air is very important to keep living organisms and the earth save.
Ever wondered what is causing ozone depletion and how it can affect you? Throughout the years chlorofluorocarbons (CFCs) have been found in refrigerators, air conditioning and other industrial processes. The ozone layer in the stratosphere protects life on earth from exposures to ultraviolet rays, such as UV-B rays. When CFCs and other chemicals are emitted, they mix with the atmosphere and eventually rise to the stratosphere. When it reaches the stratosphere, the chlorine and the bromine that the CFCs contain are what destroy the ozone layer. Ozone does not only affect the ozone layer itself, but humans, plants, and animals as well.
The thinning of the stratosphere and the increase of UV-B rays reaching the earth are expected to have direct health effects on humans. Minor effects would be appearance of aging of the skin, dryness and wrinkles in the skin are all brought by solar exposures, especially when tanning. One of the major effects of being exposed to UV-B would be skin cancer. There are two types of cancers: non-melanoma skin cancer & melanoma. Non-melanoma skin cancers are of two kinds: basal cell and squamous-cell carcinoma. Melanoma is the most dangerous form of skin cancer; it is estimated that in any year about 25% of the Americans who develop melanoma die from it. Basal cell and squamous-cell cancers are much less dangerous.
I really never thought of what was happening in the ozone layer, and how it might have being affecting us. Now that I am learning about the consequences I am much cognizant about the environment that surrounds me, and now I can let others know what is really happening around us. I would like to make a change locally and help the environment out, especially the areas of low income.
This week we focused on ozone. There are two types of ozone, the ozone molecule which creates the ozone layer found in the stratosphere and the ozone pollutant that is created by the release of oxides of nitrogen (NOx) and volatile organic compounds (VOC) [created from the emissions of motor vehicle exhaust and gasoline vapors] and sunlight cause respiratory problems. The ozone layer protects Earth from the Sun’s UV rays.
Recently the ozone layer has a hole that is located over Antarctica. The ozone hole was created by the separation of chlorofluorocarbons (CFCs). CFCs are found in refrigerators, aerosol propellants, cleaning solvents and hair sprays. The Sun’s UV rays separate the CFCs releasing chlorine (CI). The CI attaches to the ozone molecule that is composed of 3 oxygen atoms and “steals” an oxygen atom creating chlorine monoxide and changing the ozone molecule to an oxygen molecule. Due to the increase in the UV rays CFCs are constantly separated creating less ozone molecules. In 1995, 190 countries came to an agreement, Montreal Protocol to stop producing CFCs and replace it with an environmental safe product. Throughout the years the ozone hole has been improving due to the decrease in the use of CFCs.
Ozone depletion affects all living things. Due to the release of the Sun’s UV rays, the UVA and UVB rays can cause skin cancer, damage to the eyes and cataracts. UVC is the dangerous of all rays but it’s blocked by the ozone layer. This relates to society and my life because I have a higher chance of catching skin cancer due to the exposure of UVA and UVB. It also makes me aware of how dangerous the Sun’s rays are and that I must take precaution. I now know that I must wear sunscreen more often, have touchups on sunscreen, wear a hat, protective clothing and sunglasses.
Ozone is comprised of three oxygen atoms. Ozone is created by sunlight, nitrogen oxide, volatile organic compound, and also high temperature. Ozone is so harmful that the one from the lower atmosphere and upper atmosphere are both dangerous. The lower atmosphere ozone is located in the troposphere, and it is the secondary pollutant NOX, VOC,UV. The upper atmosphere ozone is located in the stratosphere mostly above Antarctica, is a problem because the bigger the hole gets the more UV rays can reach the earth which can cause cancer.
I learned that those who lives in the southern Hemisphere countries are the ones to be most vulnerable to cancer because the ozone above these countries can be less than half its normal concentration, which means the greater intensities of UV radiation in the earth's surface. It is now predicted that one of every three Australians will develop serious and perhaps fatal skin cancer in his or her lifetime. Where as the United States, the probability is much lower. In an effort to solve UV radiation, EPA, together with the national oceanic and Atmosphere Administration initiated a new index. The index takes the form of daily forecast of UV exposure. The goal of the index is to remind people of the dangers of UV radiation and urge them to take action to avoid cancer. One of the worse is malignant cancer which is an aggressive form of cancer. In 1993 there was an hypothesis made that CFCs damage the Ozone layer. However, no results had been found to support arguments in the 20 years the hypothesis was made. These arguments eventually to many critics that there was a lack of understanding of the nature of science.
Ozone is a major problem and it is one of the most dangerous pollutant in our environment. This relates to my life because when I think of the Ozone from the upper atmosphere, it shocking to know that sun exposure can cause cancer. At the summer time, I need to check the UV index and avoid sun exposure, and wear sunscreen in order to protect myself in the best way I can.
This week in Environment Science we learned about the ozone. I didn’t really know a lot about ozone until this week, I just knew that the ozone and ozone layer were affecting the planet. I knew that it was especially affecting our planet because it causes a lot of pollution.
Ozone is a molecule made up of three oxygen atoms. Ozone is mainly found in motor vehicles exhaust, industrial emissions and more. Ozone is also found in the troposphere and stratosphere. In the troposphere ozone is very harmful to humans because it can cause lung damage and worsen asthma. If ozone is in the stratosphere it is called the ozone layer. The ozone layer protects us from the suns UV rays. Some of these rays are UV B and C rays. The UV A rays is the least harmless of all of them that are transmitted. UV B rays are more harmful because they can cause skin cancer.
Ozone hole is the depletion of ozone, the cause of the depletion of ozone is CFC’s that are found on refrigerators and aerosol cans. That is why the Montreal protocol was established. The Montreal protocol was signed by about 190 countries. It prevented the production of CFC’s. The Ozone layer is found in the continent Antarctica. It is found in that continent because the temperatures are below -78 degrees Celsius.
Before this week I hardly even knew the basics about the ozone layer and ozone. But now I know a lot more about the two and how important they are for the planet and humans. Although there are efforts being made to stop the depletion of ozone there is still more that can be done. The first step in helping is protecting yourself from the harmful rays of the sun because these rays are dangerous.
this past two weeks we have learn about ozone and the ozone hole and how does it affect us. Ozone is created by three oxygen atoms. Ozone is created by sunlight, nitrogen oxide, volatile organic compound, and also high temperature. Also ozone is at its highest in the afternoon because the sun is very active and their is alot of cars and activity happening at the same time. Ozone is at its lowest in the night because their is no sun.
Ozone is located in the Stratosphere and troposphere and its protect us from harmful uv rays that could cause skin carcer. Ozone is starting to deplete due to the amount of CFCS that are going to the atmosphere that comes from refrigerator and spray. People living in australia are in danger because they are closer to the ozone hole that is making them absorb alot of harmful uv rays. their is ground ozone that causes respitory and lung problem and ozone in the atmosphere that causes skin cancer.
Now that i am more aware and know what does ozone means i think that the EPA should make more strict law to reduce the amount of CFCS that goes to the atmosphere. Hopefully things start to get better and the ozone hole to get smaller.
Ozone can be found in the stratosphere and troposphere which is the closest layer to earth. Ozone is the layer of the earth that protects us human from UV rays. more Importantly it protects us from UBV rays. Ozone is considered good in the stratosphere but bad in the troposphere because Ozone in the troposphere is harmful to humans. The ozone hole can be found around Antarctica. The ozone hole is caused by CFC's. CFC is made of chlorine monoxide that break up the three oxygen atoms. This is causing a reduce in oxygen which human cannot survive without oxygen. CFC was found in aerosol spray cans, refrigerators, and air conditioners which means that these products have a negative impact on our ozone. There over 180 nations signed the montreal protocol which is an agreement that banned the production of items with CFC's.
I find these fact very interesting not only because I didn't know any of these information before but because they have an impact on the survival of humans. The Ozone layer is very important because it has a deteriorated up till now which means that The ozone can no longer protect us from UV rays that causes cancer and in my opinion I believe that the Ozone would play a big role in human survival. UVB rays is carcinogenic which means that it causes cancer. Cancer is a disease that most of the time can't be cure and humans will die.
This chance my perspective because now I think there should be more laws created to stop the production of items with CFC's because clearly CFC are harmful chemical that can have negative impacts on humans. Because of These information I now the effects that the ozone has on human and what we can do to protect our selves from UV rays which are very harmful.
My learning has changed throughout this topic of ozone layer, because I have learned that Ozone layer is formed by the action of solar ultraviolet light on oxygen. The ozone layer prevents most ultraviolet (UV) and other high-energy radiation from penetrating to the earth's surface but it helps human to get their vitamin D. Ozone layer has been tested that it has increased majority of skin cancer. Some other air pollutants that diffuse into the ozone layer destroy ozone. I have learned that in order to protect our self we need to use sunscreen, shades, or anything that would cause us from getting to much sun and getting cancer. Chlorofluorocarbons (CFCs) are organic compounds that contain carbon, chlorine atoms. CFCs are highly effective refrigerants that were developed in response to eliminating toxic and flammable substances, such as sulfur dioxide. Their sunlight could free the chlorine atoms to form chlorine monoxide or other chemicals in particular. This have changed the way I have looked at the ozone it makes me want to protect myself even more and not take more vitamin D than what I need.
In Environmental Class, we learned about the ozone hole and how it affect our society and the way were living. the ozone hole is chemical reactions to the surfaces of ice crystal, in the clouds. It is releasing CFS into the air, also the ozone depletion begins and the ozone hole appears. 50% of total column amount of ozone at the atmosphere disappears, also the temperature began to rise and the ice would evaporate, then the ozone layer starts to recover. the ozone hole, is not really a hole, its actually a reduction in the amount of ozone molecules that are located in the stratosphere.
The ozone layer is located in the stratosphere and it made up of three oxygen molecules. The ozone layer protects us from the harmful UV rays of the sun and helps maintain an equilibrium of warmth for our planet. Presently, a hole exists in our ozone due to CFCs that used to be released from refrigerators and aerosol cans. When CFCs come in contact with some chlorine molecules that exist within the ozone layer, it causes a disturbance which in turn starts to tear apart the layer.
Before learning this information, I was aware that there was a hole within our ozone layer. I only knew this along with controversial theories about Global Warming that associated with this particular topic. Learning this information helps me understand the ozone layer more profoundly and helps provide a background information in order to go further in depth with understanding.
This week we learned about ozone and also the ozone layer that is located in stratosphere. ozone is made up of three oxygen atoms. If it were only 2, then it will be oxygen but when it connects to another it is ozone. When the ozone connects to a chloroform then it because a chlorofluorocarbons(Cfc's. Unfortunately Cfc's travel to the stratosphere in a time of 50 yrs and deplete the ozone layer. When Cfc's deplete the ozone layer it makes it easier for UVA and UVB rays to get in. UVA rays arent harmful but UVB rays are harmful and if ppl recieve too many it can lead to skin cancer. Fortunately we have found subtitutes for CFC's which we used in air conditioners and refrigerators. Since we found substitutes for these and regulations have been made to reduce the amount we make of CFC's the ozone hole which is above Antarctica is improving and is closing up. Yay to ussss :)
So far in Environmental Science we have learned various things about the Ozone hole. The ozone layer is located in the stratosphere, but the more harmful ozone is located in the troposphere. The ozone hole exists because of CFC's which are chemicals that are released into the air by things like sprays and cleaning liquids. Once these CFC'S get into the air they go up into the air and cause harm to the ozone hole. Once the UV rays hit the three oxygen atoms which make up ozone one the the atom brakes off to join other atoms which might need a third oxygen atom, and at times a chloride molecule attaches itself to oxygen atoms which is not good. The ozone layer in the stratosphere actually protects us humans from UV radiation. However because places in the south pole are so close to the actual ozone hole they are at a higher risk of getting things like sun burns. Today the ozone hole is not getting bugger, CFC's are not allowed anymore. The ozone hole is recovering but it will take a long time for it to get back to normal.
Learning things like these makes me wonder how the world would be today if CFC's kept on being used by us individuals. I also think about how life would be if we never released CFC's into the air I wonder if in the future people would stop caring so much about the ozone hole and think that its repaired enough to start using damaging chemicals again.
This week in Environmental Science class has been nothing short of brilliant, exciting, and super informative. It has been nothing but fun and personally I feel that as a class its brought together closer as a family. Being concentrated around topics such as the ozone hole, gas and layers it drew the attention of just about all as it has a direct affect in how we all live today. The Ozone hole is a hole located over the Antarctic.The main contributor to the constant growth and originating appearance where chemicals called chlorofluorocarbons also known as CFC's. CFC's are the main reason why today 1/3 of the ozone has been depleted.The way they work is that these ozone depleting chemicals end up in the Earth’s stratosphere thus leading to UV rays splitting the chemicals into two oxygen atoms which result into a reaction by chlorine and bromine thus breaking it apart. The next step is when sunlight meets the reaction causing chemicals which then split into a bunch of little ozone's which repeat the process. The Montreal Protocol was signed in January 1, 1989. If not for this protocol the ozone hole would have presented a bigger problem than what it does today. The main purpose of the protocol was to cut the production of CFCs in products. These products consisted of Sprays, Refrigerators, and Air Conditioners playing the role of the contributors. As for the ozone layer it is just a barrier that serves as a shield for us humans as its soul purpose is to protect us as it absorbs the sun’s UV rays. The ozone layer is located in the stratosphere. There are 3 major rays 2 are let in while the other is blocked out. They are a,b,and c. The c rays are blocked due to how harmful it can be if exposed to us humans. Ozone gas is made up of 3 oxygen atoms, also known as O3. In conclusion this week I have learned various things that were just presented and mentioned to me growing up but never actually got to go in depth with learning how it affected us and what exactly it was. So from this day forward I will thank Mr.Fox for helping me learn this important information through the course of this informative week. I will be reminded of you overtime I go out and apply protection to myself and future kids and family. Also while I check the UV index when I go out for a family trip or somewhere where I will be exposed to a lot of sun.
Before we started learning about the ozone hole all my background knowledge was that the hole was allowing UV rays into the Earth that were potentially harmful to humans. After we started studying the ozone hole I’ve learned that the ozone is a molecule made up of 3 oxygen atoms. About 90% of the Earth’s ozone is in the ozone layer, located in statrosphere. Over time there has been a depletion of the ozone layer, meaning more radiation is reaching the Earth’s surface. There are three types of UV rays UVA, UVB, and UVC. UVA passes right through the ozone layer and is not harmful to humans, is the radiation that provides humans with vitamin D. UVC never even reaches the ozone layer. UVB is by far the most harmful radiation that is reaching the Earth. For people, overexposure to UVB rays can lead to skin cancer. What is causing the ozone layer to become smaller is the release of chlorofluorocarbons (CFCs). CFCs have been used as refrigerants and many household items. Because it has been proven to be the greatest contributor to the ozone depletion, CFCs are no longer produced at least in the countries who are in the united nations, in thought of allowing the ozone layer to stabilize.
I believe that over time the ozone will not improve because other countries are still releasing CFCs into the atmosphere. Also, the ozone may be improving now but is only a matter of time before humans interrupt the ozone layer from reaching its normal state. Is going to become a cycle where the ozone is improving for many years and then depleting for others. Furthermore, unless skin cancer due to overexposure to UVB radiation because of ozone depletion, becomes an epidemic humans are not going to take serious actions towards this issue. Is sad that most humans like to see immediate results so they don't take into consideration a change now that will help future generations.
This week in Environmental Science we talked about ozone. There are different part of ozone. There's the ozone layer, ozone (pollutant), and ozone hole. Ozone layer is a molecule that is found in the stratosphere. Ozone pollutant is found in the unpleasant air condition called smog, which forms in the air itself in high temperatures and sunlight. The ozone layer is important because it protects people from the sun’s UV rays. And Finally, Ozone hole can cause CFCs, which thins the ozone layer, and allows large quantities of harmful ultraviolet rays to reach the Earth. Scientists have gathered information that the stratospheric ozone has been depleting over Antarctica. This is important because by not using ozone depleting chemicals, and waiting for more ozone to be produce naturally ozone layer can be replenished. CFCs are found in things such as refrigerators, and aerosol propellants. The Montreal Protocol was created to help decrease/eliminate CFCs by making safe product that won't hurt the environment. Overall, ozone hole has been improving because of people not using CFCs.
This is important to my life because ozone depletion affects all living things. Sun’s UV rays (UVA, UVB, and UVC.), can give people skin cancer. This is why it's very important for people to take precaution against that sun UV rays. In the summer I do this by wearing sunblock. Also in really hot sunny days I stay home, but if it's really important for me to get outside I would wear long cloth to protect my body.
This week has been very interesting full of important information regarding this topic.The ozone layer is located in the stratosphere and it made up of three oxygen molecules.The ozone layer protects us from the harmful UV rays of the sun which can cause skin cancer to a individual.The ozone hole protects us from CFC's which are chemicals that are released into the air by things like sprays and cleaning liquids.In 1980, 180 nations had agreed to create the Montreal act. This was a agreement for Products that once contained or never contained CFCs now state “contains no CFC chemicals.” This is good because it helps prevent and future damage into the air. All of this information is very interesting and i am glad that i have had the privilege to learn this. This entire week i have learned more about this situation and how it has been handled.
I learned several facts about Ozone and the Ozone Hole. First, ozone is a pollutant to biotic factors living on Earth. Ozone is composed of three oxygen atoms. Ozone can be formed when a free oxygen atom combines with an oxygen molecule. At the beginning of the unit I didn’t know this at all. I didn’t think ozone is a pollutant, in fact I thought it killed many of the pollutants in our environment. I also understood that there was such thing as the Ozone Hole existing in our atmosphere, specifically in the ozone layer. The ozone layer is located in the Stratosphere and Troposphere, protecting us from harmful UV rays made by the sun. UV rays are separated into three categories. UVA and UVB rays can cause skin cancer, damage to the eyes and cataracts. UVC is the dangerous of all rays but it’s blocked by the ozone layer. The ozone whole made by CFC’s and other pollutants make it possible for these UV rays to enter the Earth’s atmosphere. However, scientist report that the Ozone hole has stopped expanding, according to the Huffington Post. The ozone hole should start repairing it’s self, we as humans must however, play our part and contribute to our environment positively.
The Ozone Hole is located in the southern Hemisphere, placed over Antarctica to be exact. The ozone hole was made by what some believe to be human made chemicals such as CFC's. CFC's contain chlorine which is a chemical that alters ozone in the atmosphere which creates ozone depletion which leads to there being an Ozone hole. The ozone in our atmosphere is used in order to protect us from the suns UV rays C, UV rays B And allows UV rays A since their harmless. The fact that there's is an ozone hole in the southern hemisphere affects people in that area making them more likely to be able to have skin cancer. In Australia one in three (1/3) people have or develop skin cancer through their life compare to the Unites States one in 5 (1/5). Leading to the creation of the Sid the seagull which is a cartoon that is a celebrity in countries of Australia and New Zealand with the slogan of "Slip, Slop, Slap, Seek, and Slide" all related to ideas and ways to protect from the sun in order to avoid skin cancer. This is relevant to me because it affects the ways I will protect myself from the sun, now I will make sure I have the correct sun block and take the correct precaution on how much time I spend on the sun or wheter I will go out or not on sunny summer days.
Its funny how no one knew that an ozone layer existed before, perhaps that was the reason why we were originally doing so bad. Factories polluted the air and CFGS were being emitted onto the air, greatly around the 1900s. Even so nobody knew the damage being done to the Earth’s natural “sunscreen.” Initially a hole on the ozone layer started breaking down letting UV rays from the sun hurt us. This mostly affected people located near the southern hemisphere. Over the years there have been several reports on the hole that has affected many. Australians have a difficult task because the UV rays are directly high in their area since they are so close to the ozone hole. Enforcements were made to protect people from these highly reactive UV rays: Slap, Slip, Slop was one reaction to the ozone hole in Australia. It was a penguin that targeted children to slap on some sunscreen, slip on a shirt, and slop on a hat. This advertisement helped spread the awareness because too much sun is not very good for the skin; it can result to skin cancer because it can mutate your physical DNA. Like most times in history it takes something very hazardous to make somebody react. The Montreal protocol one of the biggest efforts to stop the Ozone hole from spreading. Initially the protocol would decline the amount of CFGS being emitted to the air because these CFGS are disrupting the ozone process. The ozone layer continually makes its self through a process of molecules however when CFGS are present the process is shown differently. It was said that if there were a continuous effort of protecting the ozone hole then naturally it would repair itself over time.
During this week of Environmental Science we learned about the Ozone layer and the Ozone hole. Before, I didn’t know what was the ozone layer or where it was located. The ozone layer is found in the stratosphere. The ozone layer is used to block the sun’s UV rays. The ozone layer protects us from the UVC and UVB radiations, which are very dangerous to us. However, this layer still allows some of the UVA and some of the UVB to go through and this is a little dangerous to us. The reason why this is dangerous because it can cause humans skin cancer. UV radiation can lead to three different types of skin cancer which are Carcinoma, melanoma, and squamous cell carcinoma. In order to protect ourselves from these types of skin cancer, all we need to do is use sun screen protection that is above 100 SPF, sun glasses and a hat. The ozone hole was basically formed because of the depletion of the ozone layer. The ozone layer is located over Antarctica and it happened due to the fact that there was a lot of CFC’s going on to the stratosphere where the ozone layer is located. CFC is a chemical called chlorofluorocarbons, that is found on spray cans and refrigerators. CFC’s is considered bad for the environment due to the fact that it contributes to the ozone depletion. When the CFC’s reach the stratosphere, they are exposed to the UV rays, the split into two oxygen atoms which are chlorine and bromine. When these two chemicals mix, they break down the ozone atoms, since ozone gas is made up of three oxygen atoms and they break apart the atoms, turning them into oxygen. This process than keeps repeating and this is how the ozone layer depletes. Something that the government has done in order to decrease the chances of the ozone layer from depleting was that they signed the Montreal Protocol and agreed on minimizing the production of CFC’s so that it would not harm the ozone layer which can then affect us.
Now that I know all of this information, I would always wear sun screen in the summer. Before, I never used to put on sun screen because I thought that it didn’t make any difference. However, according to scientists, it reduces the risk of getting skin cancer in a future. Now I am more aware of what’s going on and this way I can’t prevent myself from getting any type of skin cancer by simply wearing sun glasses, hats and sun screen lotions.
Throughout this week in Environmental Science class we learned about the Ozone hole. Ozone is made up of three Oxygen atoms and it is found in the stratosphere. Throughout the years there has been a "rip" in our ozone layer due to CFC's. If we the people do not react to it now and try to recover this damage, then UV rays from the sun would easily pass through the atmosphere causing diseases like skin cancer and cataract. When CFC's come in contact with Chlorine molecules it separates an oxygen atom from the ozone layer leaving two atoms behind. As this cycle keeps occurring due to CFC's it causes harm to the ozone layer. The Montreal Protocol is an agreement between countries that are trying to decrease the amount of CFC's produced in the world. Deducting production of CFC's will allow the Ozone hole to vanish and will allow the ozone layer will replenish.
Learning about the Ozone layer it brought my attention that the planet is at risk. We have already been experiencing unusual temperature's in the first few months of 2012. If we careless about this Global issue we will see more unusual things occurring. So far global warming has been increasing without showing any evidence of depleting. Replenishing the Ozone layer will only take half a life time it is worth fixing for the sake of the future.
Ozone is the layer of the earth that protects us from UV rays (more specifically UVC and mostly UVB rays). It is found in the atmosphere however the area where ozone is found is determined by whether it’s good or bad. In the stratosphere or the upper layer it’s good; however ozone located in the troposphere is a secondary pollutant and is harmful to humans. The chemical composition is O3 which is three oxygen atoms. The ozone hole (which is currently located over Antarctica) was caused/created by chlorofluorocarbons or CFCs. This compound is a man made chemical that was previously found in aerosol spray cans, refrigerators, and air conditioners.Ozone is a major problem and it is one of the most dangerous pollutant in our environment. This relates to my life because when I think of the Ozone from the upper atmosphere, it shocking to know that sun exposure can cause cancer. At the summer time, I need to check the UV index and avoid sun exposure, and wear sunscreen in order to protect myself in the best way I can.Before we started learning about the ozone hole all my background knowledge was that the hole was allowing UV rays into the Earth that were potentially harmful to humans.
In our environmental class I learned that the Ozone is made up by three oxygen atoms (O3). The ozone is found in the troposphere (bad) that can harm us, and in the stratosphere (good) that helps block the UV rays. Almost all UV's are blocked, the most harmful is UVB and UVC. There isn't a lot of ozone in the atmosphere. Only 10 of every million molecules are ozone. 6 miles up to 25 miles is where the ozone is found. Human activity such as industries and factories are destroying the layers by creating holes in them. If there wasn't an ozone layer many people would suffer from skin cancer such as Malignant Melanoma which spreads quickly. Squamous cell carcinoma which can be fatal but cured if it is treated early. and Basal cell carcinoma that grows slowly and is also treatable. We also learned about the UV index which is the measurment of wind patterns, ozone levels and helps you inform about the UVs to help you protect yourself from a sunburn the lowest UV index is at 0 and the highest is at 12.
The Chlorofluorocarbons (CFC's) come from refrigerants, propellants etc. and are harmful to the ozone layer, there are four steps that we discussed in class. The first step is the CFCs that are found in aerosol cans are released into the air. The second step is when the UV radiation breaks the CFC. The third step is the CFCs contain chlorine which also seperates from the CFC and connects to two oxygen atoms. The fourth step is If the chlorine seperates from the CFC then it goes to two other oxygen atoms. The Montreal Protocol was a 160 nation international treaty and since 1989 it has been revised five times, the reason for the revision was to speed up the phase out of CFCs and other compounds this treaty showed other countries that the destruction had stopped and has been effective.The treaty has been a success because the ozone has started to recover since then. CFCs damage the ozone layer and the chemical chlorine is the essential problem in ozone depletion. The CFC takes about five or six years to reach up into the stratosphere broken up by UV radiation and these chemicals may stay up to thousands of years.
At the beginning I didn't really know much about the Ozone layer or the UV rays and now I see that it's an important issue we should start informing everyone else in our community about the Ozone layer and Global warming and how it might be increasing rapidly in the future which can affect our families. I also learned about wearing suncreeen if we stay out in the sun for a long time. And by not using aerosol cans that contain CFC it would help improve the ozone layer.
ere that protects parts of the earth from UV rays. UV Radiation is harmful sun rays that cause cancer that is mutation of a cells DNA that leads to uncontrolled cell division which is vulnerable to depletion due to the cause of CFCs the ozone depleting chemical compounds. The Stratosphere which is located in the atmosphere location of ozone layer which take fifty years to fix it up, which countries have designed a Montreal Protocol that is a treaty was created to ban/reduce CFCs in 190 countries and this recovery helps with EPA the environmentally certified safe product/service.
Ozone depletion is a bigger deal in the Southern Hemisphere because it is very close to the ozone hole that forms over the South Pole at this time every year. The ozone is so thin that news include a five minute sunburn alerts. 80% of the chlorine molecules in the stratosphere are due to the human produced chemicals which are responsible for the chemical ozone depletion. Some different types of skin cancer is Basal Cell Carcinoma (BCC) which is slow growing and treatable, Squamous Cell Carcinoma (SCC) which is accounted for about 20% of skin cancer and can be cured if treated early. Melanomia spreads away from the source and is most deadly form of skin cancer and is traced to occasionally sunburning.
Before we started to learn about the whole in the ozone layer. I knew it caused the sun to hit the earth more and that factories had soemthing to do with it nothing more. After learning more abotu it in class with MR. Fox i have learned that Air conditonners, Hair spray, Auto motive Vehicels,factories, and green houses are the reason fro this damage. This ozone whole is causing Long summers and short winters, this year can be an example to my statment. The reason all of theses iteams harm the ozone layer is because they realeaced a lot of CFC’s going on to the stratosphere where the ozone layer is located. CFC is a chemical called chlorofluorocarbons. When the CFC’s reach the stratosphere, they are exposed to the UV rays, the split into two oxygen atoms which are chlorine and bromine. When these two chemicals mix, they break down the ozone atoms, since ozone gas is made up of three oxygen atoms and they break apart the atoms, turning them into oxygen. This process than keeps repeating and this is how the ozone layer depletes. Something that the government has done in order to decrease the chances of the ozone layer from depleting was that they signed the Montreal Protocol and agreed on minimizing the production of CFC’s so that it would not harm the ozone layer which can then affect us. This leads to one thing i am very intrested in fining out and that is they cycle of out climate in the future.
The ozone layer is the layer around the Earth's atmosphere which contains relatively high concentrations of ozone. The ozone layer serves as a protected layer for the earth because. Although the concentration of the ozone in the ozone layer is very small it is vitally important to life on earth since it absorbs biologically harmful ultraviolet (UV) radiation coming from the sun. There are three categories of the UV radiation all based on wavelength they are referred to as UV-A,UV-B and UV-C. I've also mentioned them in order of less dangerous to most harmful. UV-C is the most harmful to any living organism since it can lead to skin cancer as is causing genetic damage. Therefore is important to slowly begin to decrease pollution because according to present research there is a hole in the Ozone layer and if it where to get worst and eventually destroy living and non living factors on earth.
Ozone is located in the earths stratosphere. It helps protects us from the earths UV rays. Some of these rays are more powerful and dangerous than the other. For example UV-C rays are dangerous due to it developing skin cancer in humans. Scientist have discovered a hole over Antarctica, that has been quickly increasing due to the production of CFCs entering the stratosphere. To reduce the amount of CFC's released into the air the government signed the law called the montreal prtocol which made factories reduced the amount of CFC's being released into the ........
Tyras Houston 2/9/12
ReplyDeleteEnvronmental Science Mr. Fox
Blog Post 2/12
To start, Ozone is the layer of the earth that protects us from UV rays (more specifically UVC and mostly UVB rays). It is found in the atmosphere however the area where ozone is found is determined by whether it’s good or bad. In the stratosphere or the upper layer it’s good; however ozone located in the troposphere is a secondary pollutant and is harmful to humans. The chemical composition is O3 which is three oxygen atoms. The ozone hole (which is currently located over Antarctica) was caused/created by chlorofluorocarbons or CFCs. This compound is a man made chemical that was previously found in aerosol spray cans, refrigerators, and air conditioners. This was such a harmful compound being mass produced that by the end of the 1980s approximately 180 nations had agreed to create the Montreal Protocol which cut the production of CFCs in half for all household items. After its initial signing, many products soon had a label saying “contains no CFC chemicals.” Its resounding success allowed the ozone layer to slowly reconfigure itself due to the fact that the ozone chemical can self reproduce.
In my personal life the ozone layer is extremely important to human survival because if the ozone layer had deteriorated up till now, the ozone won’t be able to protect us from the UV rays that can cause a form of skin cancer, cause cataracts, blindness and premature aging. I actually found this interesting because previously I only knew that the ozone was a chemical I never researched its long term effects or global impact. I suppose ill use this information to teach my children what’s happening in terms of this environmental topic, ill also tell my family and friends to put SPF 15 sun block to protect themselves from sunburn or worse, and ill limit my time in general during activities in the sun.
What Mr. Fox has been teaching and informing us about Ozone has been nothing but moral changing and informative. The Ozone is located in the Stratosphere and troposphere and it protects us humans and living organisms from our Suns' carcinogenic UV rays in which can be lethal and life threatening. Ozone is composed of three oxygen atoms which are O3. This differs from our level of oxygen because instead of two oxygen atoms we have two. The ozone hole in which is currently above Antarctica is slowly depleting ice caps in which brings serious consequences to our environment and well being. The ozone hole can keep enlarging us humans don't fix our morals and contribute to the destruction of O3 particles by us using Chlorofluorocarbons also known as CFC's in which is a compound found in aerosol spray cans, air conditioners ,and refrigerators. CFC compound consists of chlorine monoxide that break up the three oxygen atoms to two oxygen atoms, then that one chlorine atom breaks up with the two oxygen atom to destroy more ozone. This negatively affects us humans because if more CFC is produced, eventually chlorine atoms will destroy ozone making the hole much bigger and damaging our stable living habitat. My understanding of Ozone has changed this past week because i didn't realize how much of a threat is can be if Ozone depletion starts to occur. This information has also helped me understand the documentary "An Inconvenient Truth" by Al Gore which talks about our bad morals and Ozone depletion predictions and the effects it brings if occurs. Now I’ve become more aware and for the Montreal Protocol which was a treaty passed by 190 nations to stop the production of CFC that is causing our ozone to deplete. Me by far to positively contribute to our ozone depletion have stop buying products that don’t have an CFC approval, and stop using my air conditioner in order to stop chlorofluorocarbons from destroying ozone atoms.
ReplyDeleteSlip! Slop! Slap!
ReplyDeleteThe ozone layer is located in the stratosphere, the secondary ozone pollutant is found in the troposphere. Ozone is a gas made of molecules with 3 atoms, O3. The ozone layer is a barrier that absorbs the sun’s powerful UV rays. The layer protects the most harmful ray C exposure to Earth. UV rays A and B are exposed to Earth. UV rays are carcinogenic; it can be dangerous to humans because it can lead to skin cancer, damage to the eyes, and cataracts. With this, individuals are urged to wear sun block daily.
The Ozone hole which is located over the Antarctic is rapidly destroying by chemical processes such as chlorofluorocarbons (CFCs). CFCs are ozone depleting chemicals that can be found in spray cans and refrigerators. The ozone depleting chemicals travel to Earth’s stratosphere, then the UV rays split the CFCs into two oxygen atoms and the chlorine and bromine react with the ozone, breaking it apart. When the chlorine and sunlight come in contact, it destroys thousands of ozone molecules. During the 20th century, ozone depletion has become a bigger problem because humans began to use ozone-depleting chemicals; the Montreal Protocol was a sign bill by 190 countries to stop the CFCs production. Since the Montreal Protocol, the ozone has been recovering because researchers have found environmentally safe replacement for CFCs.
I always knew the Ozone depletion was “bad” but I never thought of all the impact it has on Earth. This week I learned a lot about the actual ozone layer and the ozone hole. I learned about the impacts of UV rays to the Earth and humans. Personally, I am now aware of actions I should and should not take to help protect the Earth and help the ozone replenish. Although the ozone layer protects the harmful UV ray C from coming to Earth, UV rays A and B are still exposed to Humans. With this in mind, I realized that I should check my UV index before I got outside and wear sunscreen daily.
Amrika Sieunarine
"Slip" on a t-shirt, "slop" on some sunscreen and "slap" on a hat...
ReplyDeleteOzone depletion is a bigger deal in the Southern Hemisphere because it is very close to the ozone hole that forms over the South Pole at this time every year, the ozone is so thin that news include a five minute sunburn alerts.
Chlorofluorocarbons are being released from refrigerators, air conditioners, and fire supplies. Then UV radiation hits the CFC's which the releases the chlorine atom, then once an ozone touches the chlorine it becomes an oxygen atom once again. Finally the oxygen that was floating touches a group of 2 oxygen then it becomes a ozone atom again.
Because of the UV radiation they may cause different skin cancer types like Basal Cell Corcinoma (BCC) which is slow growing (15% of skin cancer) and is treatable. Then Squamous Cell Carcinoma (SCC) which accounts for about 20% of skin cancer and can be cured if treated early. And also Melanoma which spreads away from the source and is the most deadly form of skin cancer traced to occasional sunburning.
During this week in Environmental Science class we learned about the ozone hole.
ReplyDeleteThe ozone layer is a barrier that absorbs the sun’s powerful UV rays. Ozone is a gas made of oxygen molecules with 3 atoms, known as O3. The ozone layer is located in the stratosphere however, the secondary ozone pollutant is found in the troposphere. The ozone layer protects the most harmful ray C exposure to Earth. UV rays A and B are exposed to Earth, however, the ozone hole and too much unprotected exposure to the sun can prevent the protection. To stay protected from exposure from dangerous UV rays, I advise wear sun block no matter what skin color you are. UV rays are carcinogenic; it can be dangerous to humans because it can lead to skin cancer, cause eye damage, and cataracts.
The Ozone hole is located over the Antarctic/ the ozone hole was created by chemical processes such as chlorofluorocarbons (CFCs) which destroyed a 1/3 of the ozone. CFCs are ozone depleting chemicals that can be found in spray cans, air conditioners and refrigerators. The ozone depleting chemicals travel to Earth’s stratosphere, then the UV rays split the CFCs into two oxygen atoms and the chlorine and bromine react with the ozone, breaking it apart. When the chlorine and sunlight contact, it destroys thousands of ozone molecules. The hole in the ozone layer would have been much worse if the Montreal Protocol was not signed to cut the production of CFCs in all products. Before the 1980’s, CFCs was causing harmful compounds into the atmosphere. After 1980, 180 nations had agreed to create the Montreal. Products that once contained or never contained CFCs now state “contains no CFC chemicals.” So that the public can be aware that the product they are using is not illegal and is safe for the environment.
As a child, I always heard about the ozone layer but never really knew exactly how it formed and what it really was. I always heard about the ozone layer hole and how it causes global warming and health issues that leads to worries me because it impacts me and the people around me. As we started learning about the ozone layer I became less worried because it has gotten better and acts like the Montreal Protocol were created that I has no idea about. The ozone hole has gotten better and I believe it will continue to get better. What would like be like without ozone? Everyone would have skin cancer and the earth will be very hot; no more winters. However, by removing harmful chemicals like CFCs, we won’t have to worry about the Ozone layer worsen, it would fix completely one day. Until then, I would make sure I tell everyone to wear sun screen to protect themselves from the suns UV rays because if not, you can get a skin cancer.
Krystal Acevedo , 12 M
The Ozone is located in the Stratosphere and troposphere and it protects us humans and living organisms from our Suns' carcinogenic UV rays in which can be lethal and life threatening. Ozone is composed of three oxygen atoms which are O3, ozone hole is currently located over Antarctica is being destryoed by chlorofluorocarbons or CFCs. CFCs are ozone depleting chemicals that can be found in spray cans and refrigerators. The ozone depleting chemicals travel to Earth’s stratosphere, then the UV rays split the CFCs into two oxygen atoms and the chlorine and bromine react with the ozone, breaking it apart.
ReplyDeleteThis week in environmental class we been learning about the ozone, and in my opinion I think that the ozone depletion is bad and good because t has many impact on the Earth but at the same time there are benefits. For example the impact on UV rays to human and the Earth, because of this when the weather is hot we need to wear sunscreen to protect our skin. Another example is that without the ozone then everyone would have skin cancer and the earth will be very hot.
“The Ozone Hole”
ReplyDeleteI used to be one of those individuals that thought that the Ozone hole wasn't really a big deal. I thought all it did was protect us from the suns heat. After classes I began how important the Ozone layer is for me and everyone else. I began caring. I did not look forward to more ozone depletion and became very grateful for the scientist who had discovered the Ozone hole. If it wasn't for this discovery our poor Ozone layer would have been depleted by a huge amount. Imagine a world with 3 times as less Ozone as today!
Why is the Ozone layer important you may ask? The Ozone layer in the Stratosphere protects us from the sun's UV rays. I learned that 3 different types of rays are exposed from the sun. UV B, UV C, and UV A. UV B and expecially UV C are very harmful rays if your body gets exposed to these rays to much. Did you know that the Ozone layer is like the Earth's natural sunscreen? The Ozone layer manages to block UV C the most harmful ray automatically. This may not seem like a big deal to you since you may not know the consequences of exposure to these harmful rays, such as I was. I started caring about the Ozone hole when I found out it protects us from skin cancers such as basal cell carcinoma, squamous cell carcinoma, and melanoma and cataracts on our eyes. I saw that the Ozone hole protects us from death and disabilities. Its like the Earth cares about us, than we do ourselves if we don't help protect Earth's Ozone layer. I found myself thinking why are we hurting something that protects us?
The big Ozone hole is currently placed around the Antarctic. The size of the Ozone hole is about 1/3 of the Ozone's total ozone! What has caused this depletion was the chemicals released from humans such as CFCS and Chlorine exposure to the atmosphere. CFC’s take about 5-6 years to actually reach the stratosphere where the Ozone layer is located. When the CFC’s roam around the stratosphere they are then broken up by UV radiation. When they are broken up these CFC’s eventually release a chlorine atom. One clorine atom attacks the ozone molecule (O3) due to the fact it breaks the Ozone layer apart. This is a major factor that has caused the Ozone thinning on Antarctica.
Then I found out that we are actually helping replenishing the Ozone hole! I must admit I felt pretty happy that we can actually replenish the amount of Ozone in the Ozone layer in as little as 50 years! The Montreal Protocol is one way that has been helping the Earth's natural sunscreen. It was a world wide agreement to ban the production of CFC’s many many countries has agreed to sign it. It has been revised five times through the years of 1990-1999 which helped strengthen it and help ban CFC’s from air fresheners, hair products, refrigerators and more.
But hey, the Earth shouldn't do all the work. You should protect yourselves as well from the Sun too. Wear sunscreen, Shades, hats, and clothes that hide your skin as well.
DELORYN QUEZADA
First of all We learned that Ozone is the layer of the earth that protects us from UV rays the UVC and UVB rays.Is located in the stratosphere and also in the troposphere.Ozone is made of 3 atoms of oxygen chemicals. The ozone hole which is located in the Antarctica , CFC's (Chlorofluorocarbons) is the chemical that cause the hole in Antarctica and is causing ice caps and that could cause into dangerous things to our environment and increase global warming. . Some of the CFC's are cause by , refrigerators, aerosols spray cans,air conditioner and much more. If more CFC's is produced it would harm the zone layer, and the ozone is what protect us from UVC and UV rays. Now im more aware of what is really happening, and i would start to contribute by not using CFC's chemicals because it affects our planet and health. But now since a act has passed called the Montreal Protocol by 190 nations to stop the use of CFC's, now i think that our state really getting to action to stop the use of CFC's. I believe that by this act this chemicals are not going to harm the ozone layer and our environment Because y people now are going to realize the dangerous things that cause the use of CFC's
ReplyDeleteBefore I knew little to nothing of what the ozone hole was and its purpose. I knew there was a layer in the atmosphere that was called ozone, and its was depleting other then that I didn't know its purpose, reason of the reasons why the ozone hole was such a big dilemma. In the last couple of weeks I have learn tremendously of the effects of ozone, and the cause of the ozone layer.
ReplyDeleteThe ozone layer is found in the stratosphere, it is used to block the sun’s powerful UV radiation. This layer protects the most dangerous radiations UV C and UV B, but still allows UV A and some of UV B to go through, this is dangerous because UV radiation, like any other type of rays is a carcinogen. UV radiation carcinogens can lead to three types of skin cancer basal cell carcinoma, squamous cell carcinoma, and melanoma, it can also lead to cataracts on ones eyes. With out proper protection of the sun anyone can be at risk, if they do not use sunscreen, sun glasses, and hats.
Very recently, over the last couple of years this has become a bigger concern because of the reduction of ozone in the ozone layer causing a metaphorical hole, that is really the massive depletion of ozone in one area. Scientist have discovered a hole over Antarctica, that was rapidly increased by the production of CFCs going to the stratosphere. CFCs is a chemical called chlorofluorocarbons, that is found in refrigerators and spray cans. CFCs are very harmful to the environment because they are large contributors to ozone depletion. When CFCs travel to the stratosphere and are exposed to UV rays, they then spilt into two oxygen atoms, bromine and chlorine. When chlorine and bromine mix they break down the the ozone atoms, because ozone gas is made up pf 3 oxygen atoms and these chemicals break apart the atoms turning them in to oxygen. This process continues to cycle and then depletion of the ozone is created, in order for this process to happen cold temperature like in Antarctica have to be in play. To reduce the increase and spread of the ozone hole 190 countries sighed the Montreal Protocol, and promised to stop the production of CFCs and used supplemental chemicals in refrigerators and spray cans.
Even though the change hasn’t been drastic the ozone hole is slowly improving because it takes a long time to restore. Now we should try to focus on reducing the ozone pollutant that is harming us directly, by trying to stop the pollution of emission in cars and other sources.
So next time think two before leaving your home unprotected from the sun!
This past week we have been learning about the ozone hole. Ozone is created by three atoms such as nitrogen oxides and volatile organic compounds. These compounds are mainly found in the stratosphere and sometimes in the troposphere but are more dangerous. The reason why the ozone is important is because it protects us from UVB and UVC rays which are what is released from the sun.
ReplyDeleteWhat I found interesting is that if we didn’t have the ozone layer then it would have strong effects on people since it protects us from the rays. If human are exposed to these rays then it can cause cancer such as Basal cell carcinoma which is 75% treatable, squamous carcinoma cell 20% is treatable but has to be at an early stage, and Melanoma which 6% and it easily spreads (deadly). I also found interesting that the states surrounding the Antarctic are at the most risk because they are closer to the ozone hole. These places have something called the UV index which shows the level of how much the rays are harmful on an hourly basis. They ensure the people to protect themselves by wearing sun screen, wearing hats, and sunglasses because of eyes are exposed then it can cause cataracts.
I always knew that having the ozone layer was very important and I also knew that if the ozone hole got any bigger that it can affect the climate which can rise sea levels but I never knew why, how, and the other effects of the ozone hole expanded. Now that I know a bit more than I did about the ozone hole I care more about it because it was something I thought about it as something that I can’t really so it doesn’t really affect me but now I know that it really does affect me in the long run. I wonder if the actions that are taken to reduce the ozone hole from expanding are actually making a difference. How long would it take for it to get smaller?
This week in Enviromental Science we learned about the Ozone layer. The Ozone layer protects us from UV rays from the sun, These rays can be very harmful so when scientist found out that there was a hole in the Ozone layer over antartica many people were worried and others didnt believe it. Many people such as journalist and other scientist thought that all of this was a lie.
ReplyDeleteThen after finding out that many of these effcts on the Ozone layer were because of human activities. refrigerators and air conditioners let out something called cfc which is a chemical that helps depletes the Ozone layer. A whole in the Ozone layer can cause many affects such as skin cancer. There are three types of skin cancer 1)Basal Cell Carcinoma, 2) Squamous Cell Carinoma and 3) Melanoma, all of these are different types of cancer Melonoma is the most dangerous.
We can't blame these issues on the Ozone its been imporving since the signing of the Montreal Protocol and many people have taken it upon themselves to help save the planet but things you can do to protect yourself from skin cancer is do things such as wear sunscreen and suglasses.
Before I learned about the ozone hole in class, I didn’t really know that much about it to begin with. I only knew that it was just awful. I didn’t even know that ozone is a pollutant when it’s in the troposphere.
ReplyDeleteTo know about the ozone hole you should probably know what ozone is. Ozone is a molecule made up by three oxygen atoms. Ozone can be found in motor vehicles exhaust, industrial emissions, in the troposphere and the stratosphere. When in the troposphere ozone is a pollutant that has negative effects on human health. It can cause wheezing, permanent lung damage, inflammation and aggravation of asthma, but ozone is not all bad.
When ozone is in the stratosphere it forms a layer called the ozone layer. The ozone layer is important tour environment. It helps protect us from the sun’s powerful UV rays, such as UV B and C rays. UV A rays are the most harmless and the only rays able to go through the ozone layer. If we’re exposed to a huge amount of UV B rays we can get skin cancer.
The depletion of the ozone layer is called the ozone hole. The main cause of the ozone hole is CFCs (chlorofluorocarbons), which can be found in aerosol cans and refrigerators before the Montreal Protocol was established. The Montreal Protocol signed by 190 countries established an agreement of no more production of CFCs. CFCs when in the stratosphere release chlorine which separate ozone molecules by attracting one oxygen atom turning the ozone molecule into an oxygen molecule. The chlorine and the oxygen atom will form a chlorine monoxide molecule. The new molecule won’t last long though. The two atoms will later split causing the chlorine atom to be free and split other ozone atoms apart.
The Ozone hole can be found over the continent of Antarctica. The reason is because when temperatures are below -78°C, thin clouds of ice, nitric acid, and sulfuric acid are formed, chemical reactions on the surface of ice crystals in the clouds release active forms of CFCs.
Thanks to the Montreal Protocol though the ozone layer is starting to restore itself and maybe fully restore in about 50-60 years. With no production of CFCs from the 190 countries who signed the protocol, the ozone hole should cease to exist in that amount of time.
Before learning about the ozone hole in class I knew nothing about it. Now I know so much about it and the importance the ozone layer plays in our daily lives. The problem of the ozone hole seems to have been solved, but we still need to protect ourselves from the sun’s harmful UV rays, which mean to wear sun block of at least SPF 15 and even walk out with umbrellas on really hot sunny days.
Before learning anything about ozone I thought it was just this huge problem that was going to end society. The truth is people emphasize too much on the negative things and not on the positive that can be done. The ozone hole located in the stratosphere mostly above Antarctica is a problem because the bigger the whole gets the more UV rays (UVB UVA) can reach earth. Ozone is used a sheer to help protect the earth from the suns rays which can cause cancer and cataracts. SO how did the ozone whole get there in the first place? Scientist believes we human have caused the ozone hole by putting CFC in the air CFC contain CL which is the main thing tat brakes down Ozone. Ozone is made off O3, which are three ozone molecules together. After the cfc are put in to the air and in to our atmosphere the CL starts to brake down all the O3 molecules making the O2 the oxygen that we breath. After it has become CLO the oxygen atom then attaches to a single O leaving the CL alone to brake down another O3. One CL can destroy millions of O3. Countries where noticing CFC where becoming a problem contributing to the depletion of the ozone layers, so they came up with the Montreal Protocol Which meant no CFC could be used. After the protocol there has been an improvement in the ozone hole but CFC last hundreds of year in the air. Therefore it’s going to be a while until we notice the hole back to normal. Until he hole is back to normal there are many precautions we can take in order to protect are self from UV rays like "Slipping on a t-shirt, "slapping on some sunscreen and "slapping" on a hat.
ReplyDeleteThe ozone hole is not the only problem that has to do with ozone but Ozone in the air we breath as well. Ozone in the air we breathe is considered a pollutant. Which is harmful for us. “Troposphere ozone is a greenhouse gas and initiates the chemical removal of methane and other hydrocarbons from the atmosphere” There are things we can do to stop this pollutant as well. We can start doing green project and looking for better innovations like scrubbers.
Ozone is a molecule made made out of three oxygen atoms. Ozone is created by sunlight, nitrogen oxide, and volatile organic compound. Depending on where ozone is created its either harmful or beneficial. When ozone is is created in the troposphere, where the oxygen humans breath is located, ozone is harmful to people, animals, and plants respiratory system. When ozone is located in the stratosphere, it is beneficial because it creates a ozone layer which protects humans, plants, and animals from the sun’s harmful rays that can cause skin cells mutation, and cancer. The ozone layer is important because without it the earth’s ice capsules would melt and drown half of the earth’s land. The sun ray would finish the job cause humans to get cancer and drying the earth’s water.
ReplyDeleteIn 1980, 70 % of the ozone layer decreased caused by chlorofluorocarbons (CFCs): released by refrigerators, aerosol spray cans, and air conditioners. CFCs would be released by theses sources and take about five years to reach the stratosphere. Once reaching the stratosphere, the sun’s rays cause the CFCs molecule to release a chlorine atom. Than, once the chlorine atom torches a ozone molecule it takes one of the oxygen atom form the ozone molecule creating a oxygen molecule, and a chlorine monoxide molecular. Finally, when the chlorine monoxide molecular meets a ox-gen atom, it releases the oxygen atom to make a oxygen molecule. The chlorine atom is once more free to break apart other ozone molecule and keep creating oxygen molecules. This is important because the CFCs were causing a “hole” in the ozone layer, and effecting the ice capsules in Antarctica.
Before knowing the consequences of the whole hole on living organism, and the earth, I did not think much of it. Know I believe that testing the earth for harmful chemicals and making sure that CFCs are no released into the air is very important to keep living organisms and the earth save.
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ReplyDeleteEver wondered what is causing ozone depletion and how it can affect you? Throughout the years chlorofluorocarbons (CFCs) have been found in refrigerators, air conditioning and other industrial processes. The ozone layer in the stratosphere protects life on earth from exposures to ultraviolet rays, such as UV-B rays. When CFCs and other chemicals are emitted, they mix with the atmosphere and eventually rise to the stratosphere. When it reaches the stratosphere, the chlorine and the bromine that the CFCs contain are what destroy the ozone layer. Ozone does not only affect the ozone layer itself, but humans, plants, and animals as well.
ReplyDeleteThe thinning of the stratosphere and the increase of UV-B rays reaching the earth are expected to have direct health effects on humans. Minor effects would be appearance of aging of the skin, dryness and wrinkles in the skin are all brought by solar exposures, especially when tanning. One of the major effects of being exposed to UV-B would be skin cancer. There are two types of cancers: non-melanoma skin cancer & melanoma. Non-melanoma skin cancers are of two kinds: basal cell and squamous-cell carcinoma. Melanoma is the most dangerous form of skin cancer; it is estimated that in any year about 25% of the Americans who develop melanoma die from it. Basal cell and squamous-cell cancers are much less dangerous.
I really never thought of what was happening in the ozone layer, and how it might have being affecting us. Now that I am learning about the consequences I am much cognizant about the environment that surrounds me, and now I can let others know what is really happening around us. I would like to make a change locally and help the environment out, especially the areas of low income.
-Estefania Garcia, 12B
This week we focused on ozone. There are two types of ozone, the ozone molecule which creates the ozone layer found in the stratosphere and the ozone pollutant that is created by the release of oxides of nitrogen (NOx) and volatile organic compounds (VOC) [created from the emissions of motor vehicle exhaust and gasoline vapors] and sunlight cause respiratory problems. The ozone layer protects Earth from the Sun’s UV rays.
ReplyDeleteRecently the ozone layer has a hole that is located over Antarctica. The ozone hole was created by the separation of chlorofluorocarbons (CFCs). CFCs are found in refrigerators, aerosol propellants, cleaning solvents and hair sprays. The Sun’s UV rays separate the CFCs releasing chlorine (CI). The CI attaches to the ozone molecule that is composed of 3 oxygen atoms and “steals” an oxygen atom creating chlorine monoxide and changing the ozone molecule to an oxygen molecule. Due to the increase in the UV rays CFCs are constantly separated creating less ozone molecules. In 1995, 190 countries came to an agreement, Montreal Protocol to stop producing CFCs and replace it with an environmental safe product. Throughout the years the ozone hole has been improving due to the decrease in the use of CFCs.
Ozone depletion affects all living things. Due to the release of the Sun’s UV rays, the UVA and UVB rays can cause skin cancer, damage to the eyes and cataracts. UVC is the dangerous of all rays but it’s blocked by the ozone layer. This relates to society and my life because I have a higher chance of catching skin cancer due to the exposure of UVA and UVB. It also makes me aware of how dangerous the Sun’s rays are and that I must take precaution. I now know that I must wear sunscreen more often, have touchups on sunscreen, wear a hat, protective clothing and sunglasses.
Ozone is comprised of three oxygen atoms. Ozone is created by sunlight, nitrogen oxide, volatile organic compound, and also high temperature. Ozone is so harmful that the one from the lower atmosphere and upper atmosphere are both dangerous. The lower atmosphere ozone is located in the troposphere, and it is the secondary pollutant NOX, VOC,UV. The upper atmosphere ozone is located in the stratosphere mostly above Antarctica, is a problem because the bigger the hole gets the more UV rays can reach the earth which can cause cancer.
ReplyDeleteI learned that those who lives in the southern Hemisphere countries are the ones to be most vulnerable to cancer because the ozone above these countries can be less than half its normal concentration, which means the greater intensities of UV radiation in the earth's surface. It is now predicted that one of every three Australians will develop serious and perhaps fatal skin cancer in his or her lifetime. Where as the United States, the probability is much lower. In an effort to solve UV radiation, EPA, together with the national oceanic and Atmosphere Administration initiated a new index. The index takes the form of daily forecast of UV exposure. The goal of the index is to remind people of the dangers of UV radiation and urge them to take action to avoid cancer. One of the worse is malignant cancer which is an aggressive form of cancer. In 1993 there was an hypothesis made that CFCs damage the Ozone layer. However, no results had been found to support arguments in the 20 years the hypothesis was made. These arguments eventually to many critics that there was a lack of understanding of the nature of science.
Ozone is a major problem and it is one of the most dangerous pollutant in our environment. This relates to my life because when I think of the Ozone from the upper atmosphere, it shocking to know that sun exposure can cause cancer. At the summer time, I need to check the UV index and avoid sun exposure, and wear sunscreen in order to protect myself in the best way I can.
This week in Environment Science we learned about the ozone. I didn’t really know a lot about ozone until this week, I just knew that the ozone and ozone layer were affecting the planet. I knew that it was especially affecting our planet because it causes a lot of pollution.
ReplyDeleteOzone is a molecule made up of three oxygen atoms. Ozone is mainly found in motor vehicles exhaust, industrial emissions and more. Ozone is also found in the troposphere and stratosphere. In the troposphere ozone is very harmful to humans because it can cause lung damage and worsen asthma. If ozone is in the stratosphere it is called the ozone layer. The ozone layer protects us from the suns UV rays. Some of these rays are UV B and C rays. The UV A rays is the least harmless of all of them that are transmitted. UV B rays are more harmful because they can cause skin cancer.
Ozone hole is the depletion of ozone, the cause of the depletion of ozone is CFC’s that are found on refrigerators and aerosol cans. That is why the Montreal protocol was established. The Montreal protocol was signed by about 190 countries. It prevented the production of CFC’s. The Ozone layer is found in the continent Antarctica. It is found in that continent because the temperatures are below -78 degrees Celsius.
Before this week I hardly even knew the basics about the ozone layer and ozone. But now I know a lot more about the two and how important they are for the planet and humans. Although there are efforts being made to stop the depletion of ozone there is still more that can be done. The first step in helping is protecting yourself from the harmful rays of the sun because these rays are dangerous.
this past two weeks we have learn about ozone and the ozone hole and how does it affect us. Ozone is created by three oxygen atoms. Ozone is created by sunlight, nitrogen oxide, volatile organic compound, and also high temperature. Also ozone is at its highest in the afternoon because the sun is very active and their is alot of cars and activity happening at the same time. Ozone is at its lowest in the night because their is no sun.
ReplyDeleteOzone is located in the Stratosphere and troposphere and its protect us from harmful uv rays that could cause skin carcer. Ozone is starting to deplete due to the amount of CFCS that are going to the atmosphere that comes from refrigerator and spray. People living in australia are in danger because they are closer to the ozone hole that is making them absorb alot of harmful uv rays. their is ground ozone that causes respitory and lung problem and ozone in the atmosphere that causes skin cancer.
Now that i am more aware and know what does ozone means i think that the EPA should make more strict law to reduce the amount of CFCS that goes to the atmosphere. Hopefully things start to get better and the ozone hole to get smaller.
Ozone can be found in the stratosphere and troposphere which is the closest layer to earth. Ozone is the layer of the earth that protects us human from UV rays. more Importantly it protects us from UBV rays. Ozone is considered good in the stratosphere but bad in the troposphere because Ozone in the troposphere is harmful to humans. The ozone hole can be found around Antarctica. The ozone hole is caused by CFC's. CFC is made of chlorine monoxide that break up the three oxygen atoms. This is causing a reduce in oxygen which human cannot survive without oxygen. CFC was found in aerosol spray cans, refrigerators, and air conditioners which means that these products have a negative impact on our ozone. There over 180 nations signed the montreal protocol which is an agreement that banned the production of items with CFC's.
ReplyDeleteI find these fact very interesting not only because I didn't know any of these information before but because they have an impact on the survival of humans. The Ozone layer is very important because it has a deteriorated up till now which means that The ozone can no longer protect us from UV rays that causes cancer and in my opinion I believe that the Ozone would play a big role in human survival. UVB rays is carcinogenic which means that it causes cancer. Cancer is a disease that most of the time can't be cure and humans will die.
This chance my perspective because now I think there should be more laws created to stop the production of items with CFC's because clearly CFC are harmful chemical that can have negative impacts on humans. Because of These information I now the effects that the ozone has on human and what we can do to protect our selves from UV rays which are very harmful.
My learning has changed throughout this topic of ozone layer, because I have learned that Ozone layer is formed by the action of solar ultraviolet light on oxygen. The ozone layer prevents most ultraviolet (UV) and other high-energy radiation from penetrating to the earth's surface but it helps human to get their vitamin D. Ozone layer has been tested that it has increased majority of skin cancer. Some other air pollutants that diffuse into the ozone layer destroy ozone. I have learned that in order to protect our self we need to use sunscreen, shades, or anything that would cause us from getting to much sun and getting cancer. Chlorofluorocarbons (CFCs) are organic compounds that contain carbon, chlorine atoms. CFCs are highly effective refrigerants that were developed in response to eliminating toxic and flammable substances, such as sulfur dioxide. Their sunlight could free the chlorine atoms to form chlorine monoxide or other chemicals in particular. This have changed the way I have looked at the ozone it makes me want to protect myself even more and not take more vitamin D than what I need.
ReplyDeleteIn Environmental Class, we learned about the ozone hole and how it affect our society and the way were living. the ozone hole is chemical reactions to the surfaces of ice crystal, in the clouds. It is releasing CFS into the air, also the ozone depletion begins and the ozone hole appears. 50% of total column amount of ozone at the atmosphere disappears, also the temperature began to rise and the ice would evaporate, then the ozone layer starts to recover. the ozone hole, is not really a hole, its actually a reduction in the amount of ozone molecules that are located in the stratosphere.
ReplyDeleteThe ozone layer is located in the stratosphere and it made up of three oxygen molecules. The ozone layer protects us from the harmful UV rays of the sun and helps maintain an equilibrium of warmth for our planet. Presently, a hole exists in our ozone due to CFCs that used to be released from refrigerators and aerosol cans. When CFCs come in contact with some chlorine molecules that exist within the ozone layer, it causes a disturbance which in turn starts to tear apart the layer.
ReplyDeleteBefore learning this information, I was aware that there was a hole within our ozone layer. I only knew this along with controversial theories about Global
Warming that associated with this particular topic. Learning this information helps me understand the ozone layer more profoundly and helps provide a background information in order to go further in depth with understanding.
This week we learned about ozone and also the ozone layer that is located in stratosphere. ozone is made up of three oxygen atoms. If it were only 2, then it will be oxygen but when it connects to another it is ozone. When the ozone connects to a chloroform then it because a chlorofluorocarbons(Cfc's. Unfortunately Cfc's travel to the stratosphere in a time of 50 yrs and deplete the ozone layer. When Cfc's deplete the ozone layer it makes it easier for UVA and UVB rays to get in. UVA rays arent harmful but UVB rays are harmful and if ppl recieve too many it can lead to skin cancer. Fortunately we have found subtitutes for CFC's which we used in air conditioners and refrigerators. Since we found substitutes for these and regulations have been made to reduce the amount we make of CFC's the ozone hole which is above Antarctica is improving and is closing up. Yay to ussss :)
ReplyDeleteSo far in Environmental Science we have learned various things about the Ozone hole. The ozone layer is located in the stratosphere, but the more harmful ozone is located in the troposphere. The ozone hole exists because of CFC's which are chemicals that are released into the air by things like sprays and cleaning liquids. Once these CFC'S get into the air they go up into the air and cause harm to the ozone hole. Once the UV rays hit the three oxygen atoms which make up ozone one the the atom brakes off to join other atoms which might need a third oxygen atom, and at times a chloride molecule attaches itself to oxygen atoms which is not good. The ozone layer in the stratosphere actually protects us humans from UV radiation. However because places in the south pole are so close to the actual ozone hole they are at a higher risk of getting things like sun burns. Today the ozone hole is not getting bugger, CFC's are not allowed anymore. The ozone hole is recovering but it will take a long time for it to get back to normal.
ReplyDeleteLearning things like these makes me wonder how the world would be today if CFC's kept on being used by us individuals. I also think about how life would be if we never released CFC's into the air I wonder if in the future people would stop caring so much about the ozone hole and think that its repaired enough to start using damaging chemicals again.
-Lisnanlly Guaba
This week in Environmental Science class has been nothing short of brilliant, exciting, and super informative. It has been nothing but fun and personally I feel that as a class its brought together closer as a family. Being concentrated around topics such as the ozone hole, gas and layers it drew the attention of just about all as it has a direct affect in how we all live today. The Ozone hole is a hole located over the Antarctic.The main contributor to the constant growth and originating appearance where chemicals called chlorofluorocarbons also known as CFC's. CFC's are the main reason why today 1/3 of the ozone has been depleted.The way they work is that these ozone depleting chemicals end up in the Earth’s stratosphere thus leading to UV rays splitting the chemicals into two oxygen atoms which result into a reaction by chlorine and bromine thus breaking it apart. The next step is when sunlight meets the reaction causing chemicals which then split into a bunch of little ozone's which repeat the process. The Montreal Protocol was signed in January 1, 1989. If not for this protocol the ozone hole would have presented a bigger problem than what it does today. The main purpose of the protocol was to cut the production of CFCs in products. These products consisted of Sprays, Refrigerators, and Air Conditioners playing the role of the contributors. As for the ozone layer it is just a barrier that serves as a shield for us humans as its soul purpose is to protect us as it absorbs the sun’s UV rays. The ozone layer is located in the stratosphere. There are 3 major rays 2 are let in while the other is blocked out. They are a,b,and c. The c rays are blocked due to how harmful it can be if exposed to us humans. Ozone gas is made up of 3 oxygen atoms, also known as O3. In conclusion this week I have learned various things that were just presented and mentioned to me growing up but never actually got to go in depth with learning how it affected us and what exactly it was. So from this day forward I will thank Mr.Fox for helping me learn this important information through the course of this informative week. I will be reminded of you overtime I go out and apply protection to myself and future kids and family. Also while I check the UV index when I go out for a family trip or somewhere where I will be exposed to a lot of sun.
ReplyDelete-Andy Alvarez
Before we started learning about the ozone hole all my background knowledge was that the hole was allowing UV rays into the Earth that were potentially harmful to humans. After we started studying the ozone hole I’ve learned that the ozone is a molecule made up of 3 oxygen atoms. About 90% of the Earth’s ozone is in the ozone layer, located in statrosphere. Over time there has been a depletion of the ozone layer, meaning more radiation is reaching the Earth’s surface. There are three types of UV rays UVA, UVB, and UVC. UVA passes right through the ozone layer and is not harmful to humans, is the radiation that provides humans with vitamin D. UVC never even reaches the ozone layer. UVB is by far the most harmful radiation that is reaching the Earth. For people, overexposure to UVB rays can lead to skin cancer. What is causing the ozone layer to become smaller is the release of chlorofluorocarbons (CFCs). CFCs have been used as refrigerants and many household items. Because it has been proven to be the greatest contributor to the ozone depletion, CFCs are no longer produced at least in the countries who are in the united nations, in thought of allowing the ozone layer to stabilize.
ReplyDeleteI believe that over time the ozone will not improve because other countries are still releasing CFCs into the atmosphere. Also, the ozone may be improving now but is only a matter of time before humans interrupt the ozone layer from reaching its normal state. Is going to become a cycle where the ozone is improving for many years and then depleting for others. Furthermore, unless skin cancer due to overexposure to UVB radiation because of ozone depletion, becomes an epidemic humans are not going to take serious actions towards this issue. Is sad that most humans like to see immediate results so they don't take into consideration a change now that will help future generations.
This week in Environmental Science we talked about ozone. There are different part of ozone. There's the ozone layer, ozone (pollutant), and ozone hole. Ozone layer is a molecule that is found in the stratosphere. Ozone pollutant is found in the unpleasant air condition called smog, which forms in the air itself in high temperatures and sunlight. The ozone layer is important because it protects people from the sun’s UV rays. And Finally, Ozone hole can cause CFCs, which thins the ozone layer, and allows large quantities of harmful ultraviolet rays to reach the Earth. Scientists have gathered information that the stratospheric ozone has been depleting over Antarctica. This is important because by not using ozone depleting chemicals, and waiting for more ozone to be produce naturally ozone layer can be replenished. CFCs are found in things such as refrigerators, and aerosol propellants. The Montreal Protocol was created to help decrease/eliminate CFCs by making safe product that won't hurt the environment. Overall, ozone hole has been improving because of people not using CFCs.
ReplyDeleteThis is important to my life because ozone depletion affects all living things. Sun’s UV rays (UVA, UVB, and UVC.), can give people skin cancer. This is why it's very important for people to take precaution against that sun UV rays. In the summer I do this by wearing sunblock. Also in really hot sunny days I stay home, but if it's really important for me to get outside I would wear long cloth to protect my body.
This week has been very interesting full of important information regarding this topic.The ozone layer is located in the stratosphere and it made up of three oxygen molecules.The ozone layer protects us from the harmful UV rays of the sun which can cause skin cancer to a individual.The ozone hole protects us from CFC's which are chemicals that are released into the air by things like sprays and cleaning liquids.In 1980, 180 nations had agreed to create the Montreal act. This was a agreement for Products that once contained or never contained CFCs now state “contains no CFC chemicals.” This is good because it helps prevent and future damage into the air. All of this information is very interesting and i am glad that i have had the privilege to learn this. This entire week i have learned more about this situation and how it has been handled.
ReplyDeleteI learned several facts about Ozone and the Ozone Hole. First, ozone is a pollutant to biotic factors living on Earth. Ozone is composed of three oxygen atoms. Ozone can be formed when a free oxygen atom combines with an oxygen molecule. At the beginning of the unit I didn’t know this at all. I didn’t think ozone is a pollutant, in fact I thought it killed many of the pollutants in our environment. I also understood that there was such thing as the Ozone Hole existing in our atmosphere, specifically in the ozone layer. The ozone layer is located in the Stratosphere and Troposphere, protecting us from harmful UV rays made by the sun. UV rays are separated into three categories. UVA and UVB rays can cause skin cancer, damage to the eyes and cataracts. UVC is the dangerous of all rays but it’s blocked by the ozone layer. The ozone whole made by CFC’s and other pollutants make it possible for these UV rays to enter the Earth’s atmosphere. However, scientist report that the Ozone hole has stopped expanding, according to the Huffington Post. The ozone hole should start repairing it’s self, we as humans must however, play our part and contribute to our environment positively.
ReplyDeleteSkin Cancer I ain't getting that!!!.
ReplyDeleteThe Ozone Hole is located in the southern Hemisphere, placed over Antarctica to be exact. The ozone hole was made by what some believe to be human made chemicals such as CFC's. CFC's contain chlorine which is a chemical that alters ozone in the atmosphere which creates ozone depletion which leads to there being an Ozone hole.
The ozone in our atmosphere is used in order to protect us from the suns UV rays C, UV rays B And allows UV rays A since their harmless. The fact that there's is an ozone hole in the southern hemisphere affects people in that area making them more likely to be able to have skin cancer. In Australia one in three (1/3) people have or develop skin cancer through their life compare to the Unites States one in 5 (1/5). Leading to the creation of the Sid the seagull which is a cartoon that is a celebrity in countries of Australia and New Zealand with the slogan of "Slip, Slop, Slap, Seek, and Slide" all related to ideas and ways to protect from the sun in order to avoid skin cancer.
This is relevant to me because it affects the ways I will protect myself from the sun, now I will make sure I have the correct sun block and take the correct precaution on how much time I spend on the sun or wheter I will go out or not on sunny summer days.
Its funny how no one knew that an ozone layer existed before, perhaps that was the reason why we were originally doing so bad. Factories polluted the air and CFGS were being emitted onto the air, greatly around the 1900s. Even so nobody knew the damage being done to the Earth’s natural “sunscreen.” Initially a hole on the ozone layer started breaking down letting UV rays from the sun hurt us. This mostly affected people located near the southern hemisphere. Over the years there have been several reports on the hole that has affected many. Australians have a difficult task because the UV rays are directly high in their area since they are so close to the ozone hole. Enforcements were made to protect people from these highly reactive UV rays: Slap, Slip, Slop was one reaction to the ozone hole in Australia. It was a penguin that targeted children to slap on some sunscreen, slip on a shirt, and slop on a hat. This advertisement helped spread the awareness because too much sun is not very good for the skin; it can result to skin cancer because it can mutate your physical DNA. Like most times in history it takes something very hazardous to make somebody react. The Montreal protocol one of the biggest efforts to stop the Ozone hole from spreading. Initially the protocol would decline the amount of CFGS being emitted to the air because these CFGS are disrupting the ozone process. The ozone layer continually makes its self through a process of molecules however when CFGS are present the process is shown differently. It was said that if there were a continuous effort of protecting the ozone hole then naturally it would repair itself over time.
ReplyDeleteDuring this week of Environmental Science we learned about the Ozone layer and the Ozone hole. Before, I didn’t know what was the ozone layer or where it was located. The ozone layer is found in the stratosphere. The ozone layer is used to block the sun’s UV rays. The ozone layer protects us from the UVC and UVB radiations, which are very dangerous to us. However, this layer still allows some of the UVA and some of the UVB to go through and this is a little dangerous to us. The reason why this is dangerous because it can cause humans skin cancer. UV radiation can lead to three different types of skin cancer which are Carcinoma, melanoma, and squamous cell carcinoma. In order to protect ourselves from these types of skin cancer, all we need to do is use sun screen protection that is above 100 SPF, sun glasses and a hat. The ozone hole was basically formed because of the depletion of the ozone layer. The ozone layer is located over Antarctica and it happened due to the fact that there was a lot of CFC’s going on to the stratosphere where the ozone layer is located. CFC is a chemical called chlorofluorocarbons, that is found on spray cans and refrigerators. CFC’s is considered bad for the environment due to the fact that it contributes to the ozone depletion. When the CFC’s reach the stratosphere, they are exposed to the UV rays, the split into two oxygen atoms which are chlorine and bromine. When these two chemicals mix, they break down the ozone atoms, since ozone gas is made up of three oxygen atoms and they break apart the atoms, turning them into oxygen. This process than keeps repeating and this is how the ozone layer depletes. Something that the government has done in order to decrease the chances of the ozone layer from depleting was that they signed the Montreal Protocol and agreed on minimizing the production of CFC’s so that it would not harm the ozone layer which can then affect us.
ReplyDeleteNow that I know all of this information, I would always wear sun screen in the summer. Before, I never used to put on sun screen because I thought that it didn’t make any difference. However, according to scientists, it reduces the risk of getting skin cancer in a future. Now I am more aware of what’s going on and this way I can’t prevent myself from getting any type of skin cancer by simply wearing sun glasses, hats and sun screen lotions.
Throughout this week in Environmental Science class we learned about the Ozone hole. Ozone is made up of three Oxygen atoms and it is found in the stratosphere. Throughout the years there has been a "rip" in our ozone layer due to CFC's. If we the people do not react to it now and try to recover this damage, then UV rays from the sun would easily pass through the atmosphere causing diseases like skin cancer and cataract. When CFC's come in contact with Chlorine molecules it separates an oxygen atom from the ozone layer leaving two atoms behind. As this cycle keeps occurring due to CFC's it causes harm to the ozone layer. The Montreal Protocol is an agreement between countries that are trying to decrease the amount of CFC's produced in the world. Deducting production of CFC's will allow the Ozone hole to vanish and will allow the ozone layer will replenish.
ReplyDeleteLearning about the Ozone layer it brought my attention that the planet is at risk. We have already been experiencing unusual temperature's in the first few months of 2012. If we careless about this Global issue we will see more unusual things occurring. So far global warming has been increasing without showing any evidence of depleting. Replenishing the Ozone layer will only take half a life time it is worth fixing for the sake of the future.
Ozone is the layer of the earth that protects us from UV rays (more specifically UVC and mostly UVB rays). It is found in the atmosphere however the area where ozone is found is determined by whether it’s good or bad. In the stratosphere or the upper layer it’s good; however ozone located in the troposphere is a secondary pollutant and is harmful to humans. The chemical composition is O3 which is three oxygen atoms. The ozone hole (which is currently located over Antarctica) was caused/created by chlorofluorocarbons or CFCs. This compound is a man made chemical that was previously found in aerosol spray cans, refrigerators, and air conditioners.Ozone is a major problem and it is one of the most dangerous pollutant in our environment. This relates to my life because when I think of the Ozone from the upper atmosphere, it shocking to know that sun exposure can cause cancer. At the summer time, I need to check the UV index and avoid sun exposure, and wear sunscreen in order to protect myself in the best way I can.Before we started learning about the ozone hole all my background knowledge was that the hole was allowing UV rays into the Earth that were potentially harmful to humans.
ReplyDeleteIn our environmental class I learned that the Ozone is made up by three oxygen atoms (O3). The ozone is found in the troposphere (bad) that can harm us, and in the stratosphere (good) that helps block the UV rays. Almost all UV's are blocked, the most harmful is UVB and UVC. There isn't a lot of ozone in the atmosphere. Only 10 of every million molecules are ozone. 6 miles up to 25 miles is where the ozone is found. Human activity such as industries and factories are destroying the layers by creating holes in them. If there wasn't an ozone layer many people would suffer from skin cancer such as Malignant Melanoma which spreads quickly. Squamous cell carcinoma which can be fatal but cured if it is treated early. and Basal cell carcinoma that grows slowly and is also treatable. We also learned about the UV index which is the measurment of wind patterns, ozone levels and helps you inform about the UVs to help you protect yourself from a sunburn the lowest UV index is at 0 and the highest is at 12.
ReplyDeleteThe Chlorofluorocarbons (CFC's) come from refrigerants, propellants etc. and are harmful to the ozone layer, there are four steps that we discussed in class. The first step is the CFCs that are found in aerosol cans are released into the air. The second step is when the UV radiation breaks the CFC. The third step is the CFCs contain chlorine which also seperates from the CFC and connects to two oxygen atoms. The fourth step is If the chlorine seperates from the CFC then it goes to two other oxygen atoms. The Montreal Protocol was a 160 nation international treaty and since 1989 it has been revised five times, the reason for the revision was to speed up the phase out of CFCs and other compounds this treaty showed other countries that the destruction had stopped and has been effective.The treaty has been a success because the ozone has started to recover since then. CFCs damage the ozone layer and the chemical chlorine is the essential problem in ozone depletion. The CFC takes about five or six years to reach up into the stratosphere broken up by UV radiation and these chemicals may stay up to thousands of years.
At the beginning I didn't really know much about the Ozone layer or the UV rays and now I see that it's an important issue we should start informing everyone else in our community about the Ozone layer and Global warming and how it might be increasing rapidly in the future which can affect our families. I also learned about wearing suncreeen if we stay out in the sun for a long time. And by not using aerosol cans that contain CFC it would help improve the ozone layer.
ere that protects parts of the earth from UV rays. UV Radiation is harmful sun rays that cause cancer that is mutation of a cells DNA that leads to uncontrolled cell division which is vulnerable to depletion due to the cause of CFCs the ozone depleting chemical compounds. The Stratosphere which is located in the atmosphere location of ozone layer which take fifty years to fix it up, which countries have designed a Montreal Protocol that is a treaty was created to ban/reduce CFCs in 190 countries and this recovery helps with EPA the environmentally certified safe product/service.
ReplyDeleteOzone depletion is a bigger deal in the Southern Hemisphere because it is very close to the ozone hole that forms over the South Pole at this time every year. The ozone is so thin that news include a five minute sunburn alerts. 80% of the chlorine molecules in the stratosphere are due to the human produced chemicals which are responsible for the chemical ozone depletion. Some different types of skin cancer is Basal Cell Carcinoma (BCC) which is slow growing and treatable, Squamous Cell Carcinoma (SCC) which is accounted for about 20% of skin cancer and can be cured if treated early. Melanomia spreads away from the source and is most deadly form of skin cancer and is traced to occasionally sunburning.
Before we started to learn about the whole in the ozone layer. I knew it caused the sun to hit the earth more and that factories had soemthing to do with it nothing more. After learning more abotu it in class with MR. Fox i have learned that Air conditonners, Hair spray, Auto motive Vehicels,factories, and green houses are the reason fro this damage. This ozone whole is causing Long summers and short winters, this year can be an example to my statment. The reason all of theses iteams harm the ozone layer is because they realeaced a lot of CFC’s going on to the stratosphere where the ozone layer is located. CFC is a chemical called chlorofluorocarbons. When the CFC’s reach the stratosphere, they are exposed to the UV rays, the split into two oxygen atoms which are chlorine and bromine. When these two chemicals mix, they break down the ozone atoms, since ozone gas is made up of three oxygen atoms and they break apart the atoms, turning them into oxygen. This process than keeps repeating and this is how the ozone layer depletes. Something that the government has done in order to decrease the chances of the ozone layer from depleting was that they signed the Montreal Protocol and agreed on minimizing the production of CFC’s so that it would not harm the ozone layer which can then affect us. This leads to one thing i am very intrested in fining out and that is they cycle of out climate in the future.
ReplyDeleteThe ozone layer is the layer around the Earth's atmosphere which contains relatively high concentrations of ozone. The ozone layer serves as a protected layer for the earth because. Although the concentration of the ozone in the ozone layer is very small it is vitally important to life on earth since it absorbs biologically harmful ultraviolet (UV) radiation coming from the sun. There are three categories of the UV radiation all based on wavelength they are referred to as UV-A,UV-B and UV-C. I've also mentioned them in order of less dangerous to most harmful. UV-C is the most harmful to any living organism since it can lead to skin cancer as is causing genetic damage. Therefore is important to slowly begin to decrease pollution because according to present research there is a hole in the Ozone layer and if it where to get worst and eventually destroy living and non living factors on earth.
ReplyDeleteOzone is located in the earths stratosphere. It helps protects us from the earths UV rays. Some of these rays are more powerful and dangerous than the other. For example UV-C rays are dangerous due to it developing skin cancer in humans. Scientist have discovered a hole over Antarctica, that has been quickly increasing due to the production of CFCs entering the stratosphere. To reduce the amount of CFC's released into the air the government signed the law called the montreal prtocol which made factories reduced the amount of CFC's being released into the ........
ReplyDeleteBRUNEL PAUL
It is nice to see an article dedicated to this important topic. Thank you for sharing.
ReplyDeleteOzone waste water treatment