Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air
We report the first data set of atmospheric abundances for the following four perfluoroalkanes: n-decafluorobutane (n-C4F10), n-dodecafluoropentane (n-C5F12), n-tetradecafluorohexane (n-C6F14) and n-hexadecafluoroheptane (n-C7F16). All four com-pounds could be detected and quantified in air samples...
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Copernicus Publications on behalf of the European Geosciences Union
2012
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ftunisouthpac:oai:generic.eprints.org:7034 2023-05-15T16:29:41+02:00 Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air Laube, J.C. Hogan, C. Newland, M.J. Mani, Francis S. Fraser, P.J. Brenninkmeijer, C.A.M. Martinerie, P. Oram, D.E. R, T. Schwander, J. Witrant, E. Mills, G.P. Reeves, C.E. Sturges, W.T. 2012-02-03 application/pdf http://repository.usp.ac.fj/7034/ http://repository.usp.ac.fj/7034/1/acpd%2D12%2D4073%2D2012.pdf http://www.atmos-chem-phys-discuss.net/12/4073/2012/ unknown Copernicus Publications on behalf of the European Geosciences Union http://repository.usp.ac.fj/7034/1/acpd%2D12%2D4073%2D2012.pdf Laube, J.C. and Hogan, C. and Newland, M.J. and Mani, Francis S. and Fraser, P.J. and Brenninkmeijer, C.A.M. and Martinerie, P. and Oram, D.E. and R, T. and Schwander, J. and Witrant, E. and Mills, G.P. and Reeves, C.E. and Sturges, W.T. (2012) Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air. Atmospheric Chemistry and Physics Discussions, 12 . pp. 4073-4100. ISSN 1680-7367 QD Chemistry Journal Article PeerReviewed 2012 ftunisouthpac 2019-09-06T08:24:08Z We report the first data set of atmospheric abundances for the following four perfluoroalkanes: n-decafluorobutane (n-C4F10), n-dodecafluoropentane (n-C5F12), n-tetradecafluorohexane (n-C6F14) and n-hexadecafluoroheptane (n-C7F16). All four com-pounds could be detected and quantified in air samples from remote locations in the Southern Hemisphere (at Cape Grim, Tasmania, archived samples dating back to 1978) and the upper troposphere (a passenger aircraft flying from Germany to South Africa). Further observations originate from air samples extracted from deep firn in Greenland and allow trends of atmospheric abundances in the earlier 20th century to be inferred. All four compounds were not present in the atmosphere prior to the 1960s. n-C4F10 and n-C5F12 were also measured in samples collected in the stratosphere confirming their very long atmospheric lifetimes. Emissions were inferred from these observations and found to be comparable with emissions from the EDGAR database for n-C6F14. However, emissions of n-C4F10, n-C5F12 and n-C7F16 were found to differ by up to five orders of magnitude. Although the abundances of the four perfluorocarbons reported here are currently small (less than 0.3 ppt, parts per trillion) they have strong Global Warming Potentials several thousand times higher than carbon dioxide and continue to increase in the atmosphere. The sum of their cumulative emissions reached 325 mt (million metric tonnes) CO2 equivalent at the end of 2009. Article in Journal/Newspaper Greenland The University of South Pacific: USP Electronic Research Repository Greenland Grim ENVELOPE(-64.486,-64.486,-65.379,-65.379) |
institution |
Open Polar |
collection |
The University of South Pacific: USP Electronic Research Repository |
op_collection_id |
ftunisouthpac |
language |
unknown |
topic |
QD Chemistry |
spellingShingle |
QD Chemistry Laube, J.C. Hogan, C. Newland, M.J. Mani, Francis S. Fraser, P.J. Brenninkmeijer, C.A.M. Martinerie, P. Oram, D.E. R, T. Schwander, J. Witrant, E. Mills, G.P. Reeves, C.E. Sturges, W.T. Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
topic_facet |
QD Chemistry |
description |
We report the first data set of atmospheric abundances for the following four perfluoroalkanes: n-decafluorobutane (n-C4F10), n-dodecafluoropentane (n-C5F12), n-tetradecafluorohexane (n-C6F14) and n-hexadecafluoroheptane (n-C7F16). All four com-pounds could be detected and quantified in air samples from remote locations in the Southern Hemisphere (at Cape Grim, Tasmania, archived samples dating back to 1978) and the upper troposphere (a passenger aircraft flying from Germany to South Africa). Further observations originate from air samples extracted from deep firn in Greenland and allow trends of atmospheric abundances in the earlier 20th century to be inferred. All four compounds were not present in the atmosphere prior to the 1960s. n-C4F10 and n-C5F12 were also measured in samples collected in the stratosphere confirming their very long atmospheric lifetimes. Emissions were inferred from these observations and found to be comparable with emissions from the EDGAR database for n-C6F14. However, emissions of n-C4F10, n-C5F12 and n-C7F16 were found to differ by up to five orders of magnitude. Although the abundances of the four perfluorocarbons reported here are currently small (less than 0.3 ppt, parts per trillion) they have strong Global Warming Potentials several thousand times higher than carbon dioxide and continue to increase in the atmosphere. The sum of their cumulative emissions reached 325 mt (million metric tonnes) CO2 equivalent at the end of 2009. |
format |
Article in Journal/Newspaper |
author |
Laube, J.C. Hogan, C. Newland, M.J. Mani, Francis S. Fraser, P.J. Brenninkmeijer, C.A.M. Martinerie, P. Oram, D.E. R, T. Schwander, J. Witrant, E. Mills, G.P. Reeves, C.E. Sturges, W.T. |
author_facet |
Laube, J.C. Hogan, C. Newland, M.J. Mani, Francis S. Fraser, P.J. Brenninkmeijer, C.A.M. Martinerie, P. Oram, D.E. R, T. Schwander, J. Witrant, E. Mills, G.P. Reeves, C.E. Sturges, W.T. |
author_sort |
Laube, J.C. |
title |
Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
title_short |
Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
title_full |
Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
title_fullStr |
Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
title_full_unstemmed |
Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
title_sort |
distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air |
publisher |
Copernicus Publications on behalf of the European Geosciences Union |
publishDate |
2012 |
url |
http://repository.usp.ac.fj/7034/ http://repository.usp.ac.fj/7034/1/acpd%2D12%2D4073%2D2012.pdf http://www.atmos-chem-phys-discuss.net/12/4073/2012/ |
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 |
http://repository.usp.ac.fj/7034/1/acpd%2D12%2D4073%2D2012.pdf Laube, J.C. and Hogan, C. and Newland, M.J. and Mani, Francis S. and Fraser, P.J. and Brenninkmeijer, C.A.M. and Martinerie, P. and Oram, D.E. and R, T. and Schwander, J. and Witrant, E. and Mills, G.P. and Reeves, C.E. and Sturges, W.T. (2012) Distributions, long term trends and emissions of four perfluorocarbons in remote parts of the atmosphere and firn air. Atmospheric Chemistry and Physics Discussions, 12 . pp. 4073-4100. ISSN 1680-7367 |
_version_ |
1766019399646445568 |