globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065846
Abrupt reversal in emissions and atmospheric abundance of HCFC-133a (CF3CH2Cl)
Author: Vollmer M.K.; Rigby M.; Laube J.C.; Henne S.; Rhee T.S.; Gooch L.J.; Wenger A.; Young D.; Steele L.P.; Langenfelds R.L.; Brenninkmeijer C.A.M.; Wang J.-L.; Ou-Yang C.-F.; Wyss S.A.; Hill M.; Oram D.E.; Krummel P.B.; Schoenenberger F.; Zellweger C.; Fraser P.J.; Sturges W.T.; O'Doherty S.; Reimann S.
Source Publication: Geophysical Research Letters
ISSN: 0094-9527
EISSN: 1944-9258
Publishing Year: 2015
Volume: 42, Issue:20
pages begin: 8702
pages end: 8710
Language: 英语
Keyword: emissions ; HCFC ; Montreal Protocol
Scopus Keyword: Chlorine compounds ; Fluorocarbons ; Particulate emissions ; Atmospheric abundance ; Global emissions ; HCFC ; High resolution ; HydroChlorofluorocarbon ; Montreal Protocols ; Northern Hemispheres ; Parts per trillion ; Air pollution ; atmospheric pollution ; concentration (composition) ; emission inventory ; human activity ; hydrochlorofluorocarbon ; Montreal Protocol ; Northern Hemisphere ; Europe ; Taiwan
English Abstract: Hydrochlorofluorocarbon HCFC-133a (CF3CH2Cl) is an anthropogenic compound whose consumption for emissive use is restricted under the Montreal Protocol. A recent study showed rapidly increasing atmospheric abundances and emissions. We report that, following this rise, the atmospheric abundance and emissions have declined sharply in the past three years. We find a Northern Hemisphere HCFC-133a increase from 0.13 ppt (dry-air mole fraction in parts per trillion) in 2000 to 0.50 ppt in 2012-mid-2013 followed by an abrupt drop to ∼0.44 ppt by early 2015. Global emissions derived from these observations peaked at 3.1 kt in 2011, followed by a rapid decline of ∼0.5 kt yr-2 to reach 1.5 kt yr-1 in 2014. Sporadic HCFC-133a pollution events are detected in Europe from our high-resolution HCFC-133a records at three European stations, and in Asia from samples collected in Taiwan. European emissions are estimated to be <0.1 kt yr-1 although emission hot spots were identified in France. Key Points Atmospheric abundances of HCFC-133a and emissions have suddenly reversed in the last three years The sources of HCFC-133a to the atmosphere are likely from the production of HFC-134a In Europe, the emissions of HCFC-133a are less than 0.1 kt/yr while globally about 1.5 kt/yr © 2015. American Geophysical Union. All Rights Reserved.
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Affiliation: Laboratory for Air Pollution and Environmental Technology, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dubendorf, Switzerland

Recommended Citation:
Vollmer M.K.,Rigby M.,Laube J.C.,et al. Abrupt reversal in emissions and atmospheric abundance of HCFC-133a (CF3CH2Cl)[J]. Geophysical Research Letters,2015-01-01,42(20).
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