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Krol MC, Lelieveld J, Oram DE, et al. Continuing emissions of methyl chloroform from Europe. Nature. 2003;421(6919):131-5doi: 10.1038/nature01311.
Krol, M. C., Lelieveld, J., Oram, D. E., Sturrock, G. A., Penkett, S. A., Brenninkmeijer, C. A., Gros, V., Williams, J., & Scheeren, H. A. (2003). Continuing emissions of methyl chloroform from Europe. Nature, 421(6919), 131-5. https://doi.org/10.1038/nature01311
Krol, M C, et al. "Continuing emissions of methyl chloroform from Europe." Nature vol. 421,6919 (2003): 131-5. doi: https://doi.org/10.1038/nature01311
Krol MC, Lelieveld J, Oram DE, Sturrock GA, Penkett SA, Brenninkmeijer CA, Gros V, Williams J, Scheeren HA. Continuing emissions of methyl chloroform from Europe. Nature. 2003 Jan 09;421(6919):131-5. doi: 10.1038/nature01311. PMID: 12520294.
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Nature. 2003 Jan 09;421(6919):131-5. doi: 10.1038/nature01311.

Continuing emissions of methyl chloroform from Europe.

Nature

M C Krol, J Lelieveld, D E Oram, G A Sturrock, S A Penkett, C A M Brenninkmeijer, V Gros, J Williams, H A Scheeren

Affiliations

  1. Institute for Marine and Atmospheric Research, Utrecht NL-3584 CC, The Netherlands. [email protected]

PMID: 12520294 DOI: 10.1038/nature01311

Abstract

The consumption of methyl chloroform (1,1,1-trichloroethane), an industrial solvent, has been banned by the 1987 Montreal Protocol because of its ozone-depleting potential. During the 1990s, global emissions have decreased substantially and, since 1999, near-zero emissions have been estimated for Europe and the United States. Here we present measurements of methyl chloroform that are inconsistent with the assumption of small emissions. Using a tracer transport model, we estimate that European emissions were greater than 20 Gg in 2000. Although these emissions are not significant for stratospheric ozone depletion, they have important implications for estimates of global tropospheric hydroxyl radical (OH) concentrations, deduced from measurements of methyl chloroform. Ongoing emissions therefore cast doubt upon recent reports of a strong and unexpected negative trend in OH during the 1990s and a previously calculated higher OH abundance in the Southern Hemisphere compared to the Northern Hemisphere.

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