Articles | Volume 20, issue 12
Atmos. Chem. Phys., 20, 7271–7290, 2020
https://doi.org/10.5194/acp-20-7271-2020
Atmos. Chem. Phys., 20, 7271–7290, 2020
https://doi.org/10.5194/acp-20-7271-2020

Research article 23 Jun 2020

Research article | 23 Jun 2020

The increasing atmospheric burden of the greenhouse gas sulfur hexafluoride (SF6)

Peter G. Simmonds et al.

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AR by P. G. Simmonds on behalf of the Authors (08 May 2020)  Author's response    Manuscript
ED: Publish as is (14 May 2020) by Eliza Harris
AR by P. G. Simmonds on behalf of the Authors (18 May 2020)  Author's response    Manuscript
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Short summary
Sulfur hexafluoride (SF6) is a potent greenhouse gas which is regulated under the Kyoto Protocol. From a 40-year record of measurements, collected at five global monitoring sites and archived air samples, we show that its concentration in the atmosphere has steadily increased. Using modelling techniques, we estimate that global emissions have increased by about 24 % over the past decade. We find that this increase is driven by the demand for SF6-insulated switchgear in developing countries.
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