Methyl bromide with an approximate tropospheric concentration of 8 pptv and an atmospheric lifetime of about 0.8 years (Montzka et al., 2011).The bromine from CH3Br is thought to deplete from 40 to 100 times more ozone than chlorine. Methyl bromide is the largest source of Br to the stratosphere. It contributes about 50 % of Br radicals and is believed to be responsible for 15 % of ozone depletion caused by halogen radicals. Another 13 % is caused by CH3Cl and almost 50 % by CFCs.CFC concentrations started to decrease in the mid-90s and the Antarctic ozone hole began to re-cover. However, the...
Methyl bromide with an approximate tropospheric concentration of 8 pptv and an atmospheric lifetime of about 0.8 years (Montzka et al., 2011).The brom...
