A renewed rise in global HCFC-141b emissions between 2017–2021-Reference-Cited by-同舟云学术

A renewed rise in global HCFC-141b emissions between 2017–2021

Published:2022-07-28 Issue:14 Volume:22 Page:9601-9616
ISSN:1680-7324
Container-title:Atmospheric Chemistry and Physics
language:en
Short-container-title:Atmos. Chem. Phys.

Author:

Western Luke M.^ORCID,Redington Alison L.,Manning Alistair J.^ORCID,Trudinger Cathy M.^ORCID,Hu Lei^ORCID,Henne Stephan^ORCID,Fang Xuekun,Kuijpers Lambert J. M.,Theodoridi Christina,Godwin David S.,Arduini Jgor^ORCID,Dunse Bronwyn,Engel Andreas^ORCID,Fraser Paul J.,Harth Christina M.,Krummel Paul B.^ORCID,Maione Michela^ORCID,Mühle Jens^ORCID,O'Doherty Simon^ORCID,Park Hyeri,Park Sunyoung^ORCID,Reimann Stefan^ORCID,Salameh Peter K.,Say Daniel^ORCID,Schmidt Roland,Schuck Tanja^ORCID,Siso Carolina,Stanley Kieran M.^ORCID,Vimont Isaac,Vollmer Martin K.^ORCID,Young Dickon^ORCID,Prinn Ronald G.,Weiss Ray F.^ORCID,Montzka Stephen A.^ORCID,Rigby Matthew^ORCID

Abstract

Abstract. Global emissions of the ozone-depleting gas HCFC-141b (1,1-dichloro-1-fluoroethane, CH3CCl2F) derived from measurements of atmospheric mole fractions increased between 2017 and 2021 despite a fall in reported production and consumption of HCFC-141b for dispersive uses. HCFC-141b is a controlled substance under the Montreal Protocol, and its phase-out is currently underway, after a peak in reported consumption and production in developing (Article 5) countries in 2013. If reported production and consumption are correct, our study suggests that the 2017–2021 rise is due to an increase in emissions from the bank when appliances containing HCFC-141b reach the end of their life, or from production of HCFC-141b not reported for dispersive uses. Regional emissions have been estimated between 2017–2020 for all regions where measurements have sufficient sensitivity to emissions. This includes the regions of northwestern Europe, east Asia, the United States and Australia, where emissions decreased by a total of 2.3 ± 4.6 Gg yr−1, compared to a mean global increase of 3.0 ± 1.2 Gg yr−1 over the same period. Collectively these regions only account for around 30 % of global emissions in 2020. We are not able to pinpoint the source regions or specific activities responsible for the recent global emission rise.

Funder

H2020 Marie Skłodowska-Curie Actions

National Aeronautics and Space Administration

Department for Business, Energy and Industrial Strategy, UK Government

Climate Program Office

Natural Environment Research Council

National Research Foundation of Korea

Publisher

Copernicus GmbH

Subject

Atmospheric Science

Link

https://acp.copernicus.org/articles/22/9601/2022/acp-22-9601-2022.pdf

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