Chlorine isotope composition in chlorofluorocarbons CFC-11, CFC-12 and CFC-113 in firn, stratospheric and tropospheric air

• Published in: Atmospheric Chemistry and Physics
• Main Authors: Allin, S. J., Laube, J. C., Witrant, E., Kaiser, J., McKenna, E., Dennis, P., Mulvaney, R., Capron, E., Martinerie, P., Röckmann, T., Blunier, Thomas, Schwander, J., Fraser, P. J., Langenfelds, R. L., Sturges, W. T.
• Format: Article in Journal/Newspaper
• Language: English
• Published: European Geosciences Union 2015
• Subjects: 530 Physics; Fletcher Promontory; Greenland; Grim; Antarc*; Antarctica; North Greenland
• Online Access: https://boris.unibe.ch/74358/1/allin15acp.pdf; https://boris.unibe.ch/74358/

The stratospheric degradation of chlorofluorocarbons (CFCs) releases chlorine, which is a major contributor to the destruction of stratospheric ozone (O3). A recent study reported strong chlorine isotope fractionation during the breakdown of the most abundant CFC (CFC-12, CCl2F2, Laube et al., 2010a...