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Atmospheric histories and global emissions of the anthropogenic hydrofluorocarbons HFC-365mfc, HFC-245fa, HFC-227ea, and HFC-236fa

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Title
Atmospheric histories and global emissions of the anthropogenic hydrofluorocarbons HFC-365mfc, HFC-245fa, HFC-227ea, and HFC-236fa
Other Titles
인간활동으로 발생한 할로겐화합물 HFC-365mfc, HFC-245fa, HFC-227ea, HFC-236fa 의 대기 변화와 전지구적 방출량
Authors
M.K. Vollmer
m. Rigby
P.B. Krummel
P.K. Salameh
C.M. Harth
Rhee, Tae Siek
P.G. Simmonds
P.J. Fraser
R.F. Weiss
J. Kim
S. ODoherty
J. Muhler
S. Reimann
B.R.Miller
Subject
Meteorology & Atmospheric Sciences
Keywords
HFC‐ 227ea; HFC‐ 236fa; HFC‐ 245fa; HFC-365mfc; King Sejong
Issue Date
2011
Publisher
AGU
Citation
M.K. Vollmer, et al. 2011. "Atmospheric histories and global emissions of the anthropogenic hydrofluorocarbons HFC-365mfc, HFC-245fa, HFC-227ea, and HFC-236fa". JOURNAL OF GEOPHYSICAL RESEARCH, 116(D8): 1-16.
Abstract
We report on ground­based atmospheric measurements and emission estimates of the four anthropogenic hydrofluorocarbons (HFCs) HFC­365mfc (CH3CF2CH2CF3, 1,1,1,3,3­pentafluorobutane), HFC­245fa (CHF2CH2CF3, 1,1,1,3,3­pentafluoropropane), HFC­227ea (CF3CHFCF3, 1,1,1,2,3,3,3­heptafluoropropane), and HFC­236fa (CF3CH2CF3, 1,1,1,3,3,3­hexafluoropropane). In situ measurements are from the global monitoring sites of the Advanced Global Atmospheric Gases Experiment (AGAGE), the System for Observations of Halogenated Greenhouse Gases in Europe (SOGE), and Gosan (South Korea). We include the first halocarbon flask sample measurements from the Antarctic research stations King Sejong and Troll. We also present measurements of archived air samples from both hemispheres back to the 1970s. We use a two­dimensional atmospheric transport model to simulate global atmospheric abundances and to estimate global emissions. HFC­365mfc and HFC­245fa first appeared in the atmosphere only ∼1 decade ago;they have grown rapidly to globally averaged dry air mole fractions of 0.53 ppt (in parts per trillion, 10?12) and 1.1 ppt, respectively, by the end of 2010. In contrast, HFC­227ea first appeared in the global atmosphere in the 1980s and has since grown to ∼0.58 ppt. We report the first measurements of HFC­236fa in the atmos,3­pentafluoropropane), HFC­227ea (CF3CHFCF3, 1,1,1,2,3,3,3­heptafluoropropane), and HFC­236fa (CF3CH2CF3, 1,1,1,3,3,3­hexafluoropropane). In situ measurements are from the global monitoring sites of the Advanced Global Atmospheric Gases Experiment (AGAGE), the System for Observations of Halogenated Greenhouse Gases in Europe (SOGE), and Gosan (South Korea). We include the first halocarbon flask sample measurements from the Antarctic research stations King Sejong and Troll. We also present measurements of archive
URI
http://repository.kopri.re.kr/handle/201206/6349
DOI
http://dx.doi.org/10.1029/2010JD015309
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