Evidence for a major missing source in the global chloromethane budget from stable carbon isotopes

Chloromethane (CH.sub.3 Cl) is the most important natural input of reactive chlorine to the stratosphere, contributing about 16 % to stratospheric ozone depletion. Due to the phase-out of anthropogenic emissions of chlorofluorocarbons, CH.sub.3 Cl will largely control future levels of stratospheric...

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Published inAtmospheric chemistry and physics Vol. 19; no. 3; pp. 1703 - 1719
Main Authors Bahlmann, Enno, Keppler, Frank, Wittmer, Julian, Greule, Markus, Scholer, Heinz Friedrich, Seifert, Richard, Zetzsch, Cornelius
Format Journal Article
LanguageEnglish
Published Katlenburg-Lindau Copernicus GmbH 08.02.2019
Copernicus Publications
Subjects
Air pollution
Analysis
Anthropogenic factors
Atmospheric ozone
Atmospheric research
Biodegradation
Budgeting
Budgets
Carbon
Carbon isotopes
Chlorides
Chlorine
Chlorofluorocarbons
Chloromethane
Cycle ratio
Distribution
Emissions
Environmental aspects
Forecasts and trends
Isotope effect
Isotopes
Methyl chloride
Middle atmosphere
Mixing ratio
Ozone
Ozone depletion
Ozone layer depletion
Photochemicals
Photochemistry
Rain forests
Rainforests
Seasonal variation
Smog
Smog chambers
Stratosphere
Tropical climate
Troposphere
Germany
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Summary:Chloromethane (CH.sub.3 Cl) is the most important natural input of reactive chlorine to the stratosphere, contributing about 16 % to stratospheric ozone depletion. Due to the phase-out of anthropogenic emissions of chlorofluorocarbons, CH.sub.3 Cl will largely control future levels of stratospheric chlorine.
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-19-1703-2019