Articles | Volume 20, issue 8
Atmos. Chem. Phys., 20, 4787–4807, 2020
https://doi.org/10.5194/acp-20-4787-2020
Atmos. Chem. Phys., 20, 4787–4807, 2020
https://doi.org/10.5194/acp-20-4787-2020
Research article
24 Apr 2020
Research article | 24 Apr 2020

Trends and emissions of six perfluorocarbons in the Northern Hemisphere and Southern Hemisphere

Elise S. Droste et al.

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Cited articles

Adcock, K. E., Reeves, C. E., Gooch, L. J., Leedham Elvidge, E. C., Ashfold, M. J., Brenninkmeijer, C. A. M., Chou, C., Fraser, P. J., Langenfelds, R. L., Mohd Hanif, N., O'Doherty, S., Oram, D. E., Ou-Yang, C.-F., Phang, S. M., Samah, A. A., Röckmann, T., Sturges, W. T., and Laube, J. C.: Continued increase of CFC-113a (CCl3CF3) mixing ratios in the global atmosphere: emissions, occurrence and potential sources, Atmos. Chem. Phys., 18, 4737–4751, https://doi.org/10.5194/acp-18-4737-2018, 2018. a, b, c, d, e, f, g, h
Beu, L.: Reductions in Perfluorocompound (PFC) Emissions: 2005 State-of-the-Technology Report, International SEMATECH Manufacturing Initiative, Austin, TX, USA, 2005. a, b, c, d, e, f
Bönisch, H., Engel, A., Curtius, J., Birner, Th., and Hoor, P.: Quantifying transport into the lowermost stratosphere using simultaneous in-situ measurements of SF6 and CO2, Atmos. Chem. Phys., 9, 5905–5919, https://doi.org/10.5194/acp-9-5905-2009, 2009. a
Bravo, I., Aranda, A., Hurley, M. D., Marston, G., Nutt, D. R., Shine, K. P., Smith, K., and Wallington, T. J.: Infrared absorption spectra, radiative efficiencies, and global warming potentials of perfluorocarbons: Comparison between experiment and theory, J. Geophys. Res.-Atmos., 115, D24317, https://doi.org/10.1029/2010JD014771, 2010. a, b, c, d, e, f
Deeds, D. A., Vollmer, M. K., Kulongoski, J. T., Miller, B. R., Mühle, J., Harth, C. M., Izbicki, J. A., Hilton, D. R., and Weiss, R. F.: Evidence for crustal degassing of CF4 and SF6 in Mojave Desert groundwaters, Geochim. Cosmochim. Ac., 72, 999–1013, https://doi.org/10.1016/j.gca.2007.11.027, 2008. a
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We update the tropospheric trends and emissions of six perfluorocarbon (PFC) gases, including separate isomers. Trends for these strong greenhouse gases are still increasing, but at slower rates than previously. The lack of natural sinks results in the global accumulation of 833 million metric tonnes of CO2 equivalent for these six PFCs by 2017. Modelling results indicate potential source regions and types in East Asia, but we find that many emissions are unaccounted for in emission reports.
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