Microbial Cycling of Methyl Bromide
Environmental concern about brominated halocarbons like methyl bromide (MeBr) is focused on their potential to destroy stratospheric ozone. Photocatalysis of MeBr and other halocarbons in the stratosphere results in the liberation of reactive CI and Br atoms. Because Br atoms are perhaps as much as 100-fold more efficient at attacking ozone than are CI atoms, bromine’s lower abundance is partly compensated for by its higher reactivity.
KeywordsStratospheric Ozone Methyl Bromide Methane Thiol Mono Lake Methyl Chloride
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