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How do scientists know chlorine and bromine effect the ozone layer?
Wiki User
∙ 11y ago
Scientists have performed experiments under conditions that they believe replicate the conditions in the upper atmosphere where the presence of chlorine and bromine radicals (created when solar radiation breaks them free from the molecules they were once part of) and ice crystals catalyzes a more rapid decomposition of ozone (O3) back to simple oxygen molecules (O2). In all honesty, scientists don't KNOW that Cl and Br actually do that in the upper atmosphere, but the evidence is very strong based on existing research. Theoretically, the halogenated hydrocarbons that contain these atoms are very stable and can persist long enough remain intact for the years it may take them to diffuse into the upper atmosphere and be decomposed as theorized in the experiments.
Wiki User
∙ 11y ago
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Which of the refrigerants causes the most damage to the ozone layer?
The ones with chlorine and/or bromine in the molecule. See "How does refrigerant-nn effect the ozone layer?" in the "Related questions" section below.
How do volcanoes cause ozone layer depletion?
Volcanos release chlorine and bromine which react with ozone. This depletes ozone layer.
Which refrigerants have the lowest ozone depletion potential?
The ones that do not contain either chlorine or bromine in their molecules.See "How does refrigerant-nn effect the ozone layer?" in the "Related questions" section below.
What are the effects fluorocarbons have on the ozone layer?
Not all fluorocarbons contain the halogens chlorine or bromine. Only those compounds that contain chlorine or bromine can have adverse effects on ozone.Fluorocarbons are sometimes present in the ozone layer as both chloro- and bromo- fluoridated species. Of the three halogen species present (fluorine, chlorine, and bromine) only the chlorine and bromine participate in the breakdown of ozone. Due to its stability in compounds, fluorine has no known adverse impact on ozone. Bromine is from 10 to 100 times more impactful than chlorine.The process of ozone degradation is the release of chlorine or bromine from the source molecule by the action of sunlight. These free radicals convert ozone to oxygen and atomic oxygen. The atomic oxygen can free more chlorine or bromine. Because the CFC's are just a catalyst in the reaction, they can continue to deplete the ozone layer for some time.
Why did scientists think that the thinning of the ozone layer might be related to CFC's?
They think that because of its components. It contains Chlorine which depletes the ozone.
Which of the refrigerants causes the most damage to the ozone layer?
The ones with chlorine and/or bromine in the molecule. See "How does refrigerant-nn effect the ozone layer?" in the "Related questions" section below.
How do volcanoes cause ozone layer depletion?
Volcanos release chlorine and bromine which react with ozone. This depletes ozone layer.
Which refrigerants have the lowest ozone depletion potential?
The ones that do not contain either chlorine or bromine in their molecules.See "How does refrigerant-nn effect the ozone layer?" in the "Related questions" section below.
By what process does Freon destroy the ozone layer?
Please see the related questions below. Not all "freons" contain either chlorine or bromine, so your question has no answer. Chlorine or bromine is required in the molecule for "freons" to be an ozone depleter.
Which pollutants affect the ozone layer?
Chlorine and bromine in the man-made gases like halons and freons (CFCs).
What are the effects fluorocarbons have on the ozone layer?
Not all fluorocarbons contain the halogens chlorine or bromine. Only those compounds that contain chlorine or bromine can have adverse effects on ozone.Fluorocarbons are sometimes present in the ozone layer as both chloro- and bromo- fluoridated species. Of the three halogen species present (fluorine, chlorine, and bromine) only the chlorine and bromine participate in the breakdown of ozone. Due to its stability in compounds, fluorine has no known adverse impact on ozone. Bromine is from 10 to 100 times more impactful than chlorine.The process of ozone degradation is the release of chlorine or bromine from the source molecule by the action of sunlight. These free radicals convert ozone to oxygen and atomic oxygen. The atomic oxygen can free more chlorine or bromine. Because the CFC's are just a catalyst in the reaction, they can continue to deplete the ozone layer for some time.
What pollutant was addressed by the Montreal Protocol?
The Montreal Protocol is an international treaty designed to protect the ozone layer that went into effect in 1989. It was structured around several groups of halogenated hydrocarbons containing chlorine or bromine.
What gasses make the hole in the ozone layer?
Gases such as CFCs, nitrous oxide, hydroxl, chlorine, and bromine are the main "hole" creators. These are produced naturally, in industrial applications, and by some consumer products. Carbon dioxide does not deplete the ozone. It does increase the green house effect but has a negligible effect on ozone depletion.
Effect of cfcs in your ozone layer?
CFC's decompose into Chlorine and Fluorine. They react with ozone and deplete it.
What is the effect of CFC to the ozone layer?
CFCs release chlorine and fluorine move to the ozone layer. There these elements react with ozone to form compounds and the ozone layer is depleted.
Why did scientists think that the thinning of the ozone layer might be related to CFC's?
They think that because of its components. It contains Chlorine which depletes the ozone.
Why did scientists think that the thinning of the ozone layer might be related to CFCs?
They think that because of its components. It contains Chlorine which depletes the ozone.
