Articles | Volume 24, issue 21
https://doi.org/10.5194/acp-24-12465-2024
https://doi.org/10.5194/acp-24-12465-2024
Research article
 | 
11 Nov 2024
Research article |  | 11 Nov 2024

A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF6 for the period 2005–2021

Martin Vojta, Andreas Plach, Saurabh Annadate, Sunyoung Park, Gawon Lee, Pallav Purohit, Florian Lindl, Xin Lan, Jens Mühle, Rona L. Thompson, and Andreas Stohl

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Subject: Gases | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

AGAGE – Advanced Global Atmospheric Gases Experiment: Medusa GC-MS SF6 time series, all stations, years 2005–2021, AGAGE [data set], https://agage2.eas.gatech.edu/data_archive/agage/gc-ms-medusa/ (last access: 1 November 2024), 2024. a
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Arnold, T., Rennick, C., O'Doherty, S., Say, D., Young, D., Stavert, A., and Wenger, A.: Deriving Emissions related to Climate Change Network: CO2, CH4, N2O, SF6 and CO measurements from Heathfield Tall Tower, East Sussex, Centre for Environmental Data Analysis [data set], https://catalogue.ceda.ac.uk/uuid/df502fe4715c4177ab5e4e367a99316b (last access: 1 February 2024), 2019. a
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Short summary
We constrain the global emissions of the very potent greenhouse gas sulfur hexafluoride (SF6) between 2005 and 2021. We show that SF6 emissions are decreasing in the USA and in the EU, while they are substantially growing in China, leading overall to an increasing global emission trend. The national reports for the USA, EU, and China all underestimated their SF6 emissions. However, stringent mitigation measures can successfully reduce SF6 emissions, as can be seen in the EU emission trend.
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