Abundances, emissions, and loss processes of the long-lived and potent greenhouse gas octafluorooxolane (octafluorotetrahydrofuran, c-C 4 F 8 O) in the atmosphere

The first atmospheric observations of octafluorooxolane (octafluorotetrahydrofuran, c-C4F8O), a persistent greenhouse gas, are reported. In addition, a complementary laboratory study of its most likely atmospheric loss processes, its infrared absorption spectrum, and global warming potential (GWP) a...

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Bibliographic Details
Published in:Atmospheric chemistry and physics 2019-03, Vol.19 (6), p.3481-3492
Main Authors: Vollmer, Martin K, Bernard, Francois, Mitrevski, Blagoj, Steele, L. Paul, Trudinger, Cathy M, Reimann, Stefan, Langenfelds, Ray L, Krummel, Paul B, Fraser, Paul J, Etheridge, David M, Curran, Mark A. J, Burkholder, James B
Format: Article
Language:English
Subjects:
Absorption
Absorption spectra
Abundance
Air
Air pollution
Air sampling
Atmospheric models
Atmospheric transport
Atmospheric transport models
Carbon dioxide
Chemical Sciences
Climate change
Distribution
Dry air
Emissions
Environmental aspects
Environmental Sciences
Firn
Gases
Global temperature changes
Global warming
Global warming potential
Greenhouse effect
Greenhouse gases
Growth rate
In situ measurement
Infrared absorption
Infrared spectra
Laboratories
Northern Hemisphere
Properties
Southern Hemisphere
Ultraviolet absorption
Ultraviolet spectra
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Summary:The first atmospheric observations of octafluorooxolane (octafluorotetrahydrofuran, c-C4F8O), a persistent greenhouse gas, are reported. In addition, a complementary laboratory study of its most likely atmospheric loss processes, its infrared absorption spectrum, and global warming potential (GWP) are reported. First atmospheric measurements of c-C4F8O are provided from the Cape Grim Air Archive (41∘ S, Tasmania, Australia, 1978–present), supplemented by two firn air samples from Antarctica, in situ measurements of ambient air at Aspendale, Victoria (38∘ S), and a few archived air samples from the Northern Hemisphere. The atmospheric abundance in the Southern Hemisphere has monotonically grown over the past decades and leveled at 74 ppq (parts per quadrillion, femtomole per mole in dry air) by 2015–2018. The growth rate of c-C4F8O has decreased from a maximum in 2004 of 4.0 to
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-19-3481-2019