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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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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