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What are the group of chlorine compounds that cause highest ozone depletion called?
The only chlorine-specific name is "chlorine-containing gases". They may or may not contain fluorine (chloromethane does not). They may or may not have carbon (HCl does not). The compounds are chlorofluorocarbons, bromofluorocarbons. A lot of initials get thrown around too - CFCs HCFCs. The active agents are the chlorine and bromine ions, the fluorine is too tightly bound to ionize. "Ozone Depleting Substances" or "Ozone Depleting Compounds" is the generic term, that does not limit itself to only chlorine-as-depleter.
What can lead to the depletion of the ozone layer of earth?
Ozone layer depletion is the depletion of ozone. It has very bad affect on environment,
How can chlorofluorocarbon affect your ozone layer?
Chlorofluorocarbons (CFCs) can reach the ozone layer in the upper atmosphere and break down ozone molecules. This depletion of ozone can lead to an increase in ultraviolet radiation reaching the Earth's surface, which may have harmful effects on human health and the environment. International efforts, such as the Montreal Protocol, have been implemented to phase out the use of CFCs and protect the ozone layer.
Who discovered the ozone layer depletion?
Chloroflourocarbons were first created in 1928 and first marketted in the 1930's. They grew in popularity as non-toxic refrigerants, so about by 1988 consumption was a billion kg a year. Stratospheric ozone levels have been measured since 1956. In 1974 M.J.Molina and F.S.Rowland published a paper indicating that ozone and the chlorine from CFCs could interact to destroy the ozone if UV light was present. In May of 1985 Farman, Gardinar and Shanklin. published a report in Nature showing that ozone levels had dropped to 10% below normal January levels for Antarctica. Reworking old data indicated that there was evidence for the global ozone depletion as far back as 1976. In 1989 Anderson, J.G., W.H. Brune, M.H. Proffett, published in the Journal of Geophysical Research that ClO had been detected in the atmosphere, showing that CFCs were contributing to ozone depletion.
How excessive usage of water cause ozone depletion?
Excessive water usage can lead to ozone depletion through the energy required to pump, treat, and distribute water, which often results in more emissions of greenhouse gases like carbon dioxide. These emissions contribute to global warming, which can in turn weaken the ozone layer. Additionally, certain water treatment chemicals can also contain ozone-depleting substances that can be released into the atmosphere.
Is destroyed by chlorine atoms released from CFCs?
Chlorofluorocarbon i.e. CFC's are the compounds released from refrigrants and air conditioners. These being lighter than the air are carried upwards towards the atmosphere, stratosphere to be precise. These CFC's there in the presence of high energy ultraviolet rays breakdown into chlorine and fluorine which further react with ozone to form unstable compound and deplete it.
What problems did CFCs cause?
The main problems with the use of CFCs is that when the CFC used, it is released into the atmosphere. Being stable and insoluble it does not easily get "washed" out of the atmosphere by rain. As decades past and the CFCs eventually reach the stratosphere, they are exposed to UV light which causes them to photo dissociate and react with the ozone and gradually depleting the ozone in the atmosphere. This allows UV light, which was blocked by the ozone, to enter the earth. The UV light is harmful for organisms.
Why is damaged to the ozone layer cause of concerned?
The ozone layer stops harmful radiation from reaching the Earth's surface. Depletion of the ozone layer increases the risk of skin cancer. It may also affect the ecosystem in unpredictable ways.
What does ethanol do to the ozone layer?
Burning ethanol releases Carbon Dioxide (CO2), a greenhouse gas which is causing global warming. It has very little to do with the ozone layer, which was damaged last century by chlorine and bromine from CFCs (chlorofluorocarbons), released from aerosols and refrigeration.
When does ozone depletion occur?
Ozone is destroyed by: * UV-B and more energetic light, * time, * temperature, * water vapor, * CFCs and other contaminants For the ozone layer, the light is mostly when the Sun is shining on that bit of atmosphere. For the ozone layer, the CFCs and other contaminants require sunlight to do their thing as catalysts (which is why the largest "ozone hole" occurs in early springs, and sunlight is returning). The other three work continually, and do not require light.
Does depletion to the ozone layer cause changes in the bio-geochemical cycle?
Depletion of the ozone layer can lead to changes in the bio-geochemical cycles by affecting the amount of ultraviolet (UV) radiation reaching the Earth's surface. Increased UV radiation can impact plant productivity, carbon sequestration, and nutrient cycling in ecosystems. In particular, phytoplankton in the ocean may be affected, disrupting the marine food chain.
Why are scientist concerned about the depletion of ozone levels?
Scientists are concerned about the depletion of ozone levels because the ozone layer acts as a shield that protects Earth from harmful ultraviolet (UV) radiation from the sun. Depletion of the ozone layer can lead to increased UV radiation reaching the Earth's surface, which can have harmful effects on human health, wildlife, and ecosystems.
