Emissions halted of the potent greenhouse gas SF5CF3
Long term measurements in background air (Cape Grim, Tasmania) and firn air (NEEM, Greenland) of the potent long-lived greenhouse gas SF5CF3 show that emissions declined after the late 1990s, having grown since the 1950s, and became indistinguishable from zero after 2003. The timing of this decline...
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2012
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:42184 2023-06-06T11:54:20+02:00 Emissions halted of the potent greenhouse gas SF5CF3 Sturges, W. T. Oram, D. E. Laube, J. C. Reeves, C. E. Newland, M. J. Hogan, C. Martinerie, P. Witrant, E. Brenninkmeijer, C. A. M. Schuck, T. J. Fraser, P. J. 2012-04-19 application/pdf https://ueaeprints.uea.ac.uk/id/eprint/42184/ https://ueaeprints.uea.ac.uk/id/eprint/42184/1/acp-12-3653-2012.pdf https://doi.org/10.5194/acp-12-3653-2012 en eng https://ueaeprints.uea.ac.uk/id/eprint/42184/1/acp-12-3653-2012.pdf Sturges, W. T., Oram, D. E., Laube, J. C., Reeves, C. E., Newland, M. J., Hogan, C., Martinerie, P., Witrant, E., Brenninkmeijer, C. A. M., Schuck, T. J. and Fraser, P. J. (2012) Emissions halted of the potent greenhouse gas SF5CF3. Atmospheric Chemistry and Physics, 12 (8). pp. 3653-3658. ISSN 1680-7324 doi:10.5194/acp-12-3653-2012 cc_by Article PeerReviewed 2012 ftuniveastangl https://doi.org/10.5194/acp-12-3653-2012 2023-04-13T22:31:45Z Long term measurements in background air (Cape Grim, Tasmania) and firn air (NEEM, Greenland) of the potent long-lived greenhouse gas SF5CF3 show that emissions declined after the late 1990s, having grown since the 1950s, and became indistinguishable from zero after 2003. The timing of this decline suggests that emissions of this gas may have been related to the production of certain fluorochemicals; production of which have been recently phased out. An earlier observation of closely correlated atmospheric abundances of SF5CF3 and SF6 are shown here to have likely been purely coincidental, as their respective trends diverged after 2002. Due to its long lifetime (ca. 900 yr), atmospheric concentrations of SF5CF3 have not declined, and it is now well mixed between hemispheres, as is also shown here from interhemispheric aircraft measurements. Total cumulative emissions of SF5CF3 amount to around 5 kT. Article in Journal/Newspaper Greenland University of East Anglia: UEA Digital Repository Greenland Grim ENVELOPE(-64.486,-64.486,-65.379,-65.379) Atmospheric Chemistry and Physics 12 8 3653 3658 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
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ftuniveastangl |
language |
English |
description |
Long term measurements in background air (Cape Grim, Tasmania) and firn air (NEEM, Greenland) of the potent long-lived greenhouse gas SF5CF3 show that emissions declined after the late 1990s, having grown since the 1950s, and became indistinguishable from zero after 2003. The timing of this decline suggests that emissions of this gas may have been related to the production of certain fluorochemicals; production of which have been recently phased out. An earlier observation of closely correlated atmospheric abundances of SF5CF3 and SF6 are shown here to have likely been purely coincidental, as their respective trends diverged after 2002. Due to its long lifetime (ca. 900 yr), atmospheric concentrations of SF5CF3 have not declined, and it is now well mixed between hemispheres, as is also shown here from interhemispheric aircraft measurements. Total cumulative emissions of SF5CF3 amount to around 5 kT. |
format |
Article in Journal/Newspaper |
author |
Sturges, W. T. Oram, D. E. Laube, J. C. Reeves, C. E. Newland, M. J. Hogan, C. Martinerie, P. Witrant, E. Brenninkmeijer, C. A. M. Schuck, T. J. Fraser, P. J. |
spellingShingle |
Sturges, W. T. Oram, D. E. Laube, J. C. Reeves, C. E. Newland, M. J. Hogan, C. Martinerie, P. Witrant, E. Brenninkmeijer, C. A. M. Schuck, T. J. Fraser, P. J. Emissions halted of the potent greenhouse gas SF5CF3 |
author_facet |
Sturges, W. T. Oram, D. E. Laube, J. C. Reeves, C. E. Newland, M. J. Hogan, C. Martinerie, P. Witrant, E. Brenninkmeijer, C. A. M. Schuck, T. J. Fraser, P. J. |
author_sort |
Sturges, W. T. |
title |
Emissions halted of the potent greenhouse gas SF5CF3 |
title_short |
Emissions halted of the potent greenhouse gas SF5CF3 |
title_full |
Emissions halted of the potent greenhouse gas SF5CF3 |
title_fullStr |
Emissions halted of the potent greenhouse gas SF5CF3 |
title_full_unstemmed |
Emissions halted of the potent greenhouse gas SF5CF3 |
title_sort |
emissions halted of the potent greenhouse gas sf5cf3 |
publishDate |
2012 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/42184/ https://ueaeprints.uea.ac.uk/id/eprint/42184/1/acp-12-3653-2012.pdf https://doi.org/10.5194/acp-12-3653-2012 |
long_lat |
ENVELOPE(-64.486,-64.486,-65.379,-65.379) |
geographic |
Greenland Grim |
geographic_facet |
Greenland Grim |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
https://ueaeprints.uea.ac.uk/id/eprint/42184/1/acp-12-3653-2012.pdf Sturges, W. T., Oram, D. E., Laube, J. C., Reeves, C. E., Newland, M. J., Hogan, C., Martinerie, P., Witrant, E., Brenninkmeijer, C. A. M., Schuck, T. J. and Fraser, P. J. (2012) Emissions halted of the potent greenhouse gas SF5CF3. Atmospheric Chemistry and Physics, 12 (8). pp. 3653-3658. ISSN 1680-7324 doi:10.5194/acp-12-3653-2012 |
op_rights |
cc_by |
op_doi |
https://doi.org/10.5194/acp-12-3653-2012 |
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Atmospheric Chemistry and Physics |
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12 |
container_issue |
8 |
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3653 |
op_container_end_page |
3658 |
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