An isotopic approach for understanding the CH(3)Br budget of the atmosphere.

  title={An isotopic approach for understanding the CH(3)Br budget of the atmosphere.},
  author={Sonia McCauley and Allen H. Goldstein and Donald J DePaolo},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={96 18},
The atmospheric budget of methyl bromide (CH(3)Br), an ozone-depleting gas, is highly uncertain, because it has complex sources and sinks. Although oceans, biomass burning, and industrial production are identified as the major sources, the fraction of CH(3)Br that is contributed by each source is not well known. A mass-balance approach that exploits differences in the carbon isotopic signature (delta(13)C) of CH(3)Br sources and sinks may provide a means of reducing uncertainties in the… CONTINUE READING

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