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, T., Schwander, J., Fraser, P. J., Langenfelds, R. L., Sturges, W. T.
• Format: Article in Journal/Newspaper
• Language: English
• Published: European Geosciences Union 2015
• Subjects: Greenland; Grim; Fletcher Promontory; Antarc*; Antarctica
• Online Access: http://nora.nerc.ac.uk/id/eprint/509223/; https://nora.nerc.ac.uk/id/eprint/509223/1/acp-15-6867-2015.pdf

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), similar to effects...