Manö S, Andreae M O
Science. 1994 Mar 4;263(5151):1255-7. doi: 10.1126/science.263.5151.1255.
Bromine is, per atom, far more efficient than chlorine in destroying stratospheric ozone, and methyl bromide is the single largest source of stratospheric bromine. The two main previously known sources of this compound are emissions from the ocean and from the compound's use as an agricultural pesticide. Laboratory biomass combustion experiments showed that methyl bromide was emitted in the smoke from various fuels tested. Methyl bromide was also found in smoke plumes from wildfires in savannas, chaparral, and boreal forest. Global emissions of methyl bromide from biomass burning are estimated to be in the range of 10 to 50 gigagrams per year, which is comparable to the amount produced by ocean emission and pesticide use and represents a major contribution ( approximately 30 percent) to the stratospheric bromine budget.
就单个原子而言，溴在破坏平流层臭氧方面比氯的效率要高得多，而甲基溴是平流层溴的最大单一来源。这种化合物先前已知的两个主要来源是海洋排放以及作为农业杀虫剂的使用。实验室生物质燃烧实验表明，在所测试的各种燃料产生的烟雾中会排放出甲基溴。在热带稀树草原、丛林和北方森林的野火烟雾羽流中也发现了甲基溴。据估计，生物质燃烧产生的甲基溴全球排放量在每年10至50吉克之间，这与海洋排放和农药使用产生的量相当，并且对平流层溴收支有重大贡献（约占30%）。
