Articles | Volume 15, issue 12
https://doi.org/10.5194/acp-15-6867-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-6867-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
23 Jun 2015
Research article |
| 23 Jun 2015
Chlorine isotope composition in chlorofluorocarbons CFC-11, CFC-12 and CFC-113 in firn, stratospheric and tropospheric air
S. J. Allin
CORRESPONDING AUTHOR
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK
J. C. Laube
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK
E. Witrant
Grenoble Image Parole Signal Automatique, Université Joseph Fourier/CNRS, Grenoble, France
J. Kaiser
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK
E. McKenna
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK
P. Dennis
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK
R. Mulvaney
British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
E. Capron
British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
P. Martinerie
CNRS/Univ. Grenoble Alpes, 38041, Grenoble, France
T. Röckmann
Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, the Netherlands
T. Blunier
Centre for Ice and Climate, University of Copenhagen, Copenhagen, Denmark
J. Schwander
Physics Institute, University of Bern, Bern, Switzerland
P. J. Fraser
Centre for Australian Weather and Climate Research, Oceans and Atmosphere Flagship, Commonwealth Scientific and Industrial Research Organisation, Aspendale, Australia
R. L. Langenfelds
Centre for Australian Weather and Climate Research, Oceans and Atmosphere Flagship, Commonwealth Scientific and Industrial Research Organisation, Aspendale, Australia
W. T. Sturges
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, UK
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Latest update: 22 Nov 2025
Short summary
Stratospheric ozone protects life on Earth from harmful UV-B radiation. Chlorofluorocarbons (CFCs) are man-made compounds which act to destroy this barrier.
This paper presents (1) the first measurements of the stratospheric δ(37Cl) of CFCs -11 and -113; (2) the first quantification of long-term trends in the tropospheric δ(37Cl) of CFCs -11, -12 and -113.
This study provides a better understanding of source and sink processes associated with these destructive compounds.
Stratospheric ozone protects life on Earth from harmful UV-B radiation. Chlorofluorocarbons...
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