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This article is from the Ozone Depletion: Stratospheric Chlorine and Bromine FAQ, by Robert Parson rparson@spot.colorado.edu with numerous contributions by others.

16 Does Bromine contribute to ozone depletion?

Br is present in much smaller quantities than Cl, but it is
much more destructive on a per-atom basis. There is a large
natural source; manmade compounds contribute about 40% of the total.
In the antarctic chlorine is more important than Bromine, but at
middle latitudes their effects are comparable.

 

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• prev: 15 Summary of the Evidence (The chlorine cycle)
• Index
• next: 17 How does bromine affect ozone?

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science, engineering, ozone layer, stratosphere, chlorine, bromine, volcanoes, Chloro Fluoro Carbons, CFC