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

• Main Authors: Laube, J. C., Fraser, P. J., Sturges, W. T., McKenna, E., Allin, S. J., Mulvaney, R., Dennis, P., Blunier, Thomas, Witrant, E., Kaiser, J., Langenfelds, R. L., Capron, E., Martinerie, P., Schwander, J., Röckmann, T.
• Format: Text
• Language: English
• Published: European Geosciences Union 2015
• Subjects: 530 Physics; Greenland; Grim; Fletcher Promontory; Antarc*; Antarctica; North Greenland
• Online Access: https://dx.doi.org/10.7892/boris.74358; http://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...