HFC-43-10mee atmospheric abundances and global emission estimates

TitleHFC-43-10mee atmospheric abundances and global emission estimates
Publication TypeJournal Article
Year of Publication2014
AuthorsArnold T., Ivy D.J, Harth CM, Vollmer M.K, Mühle J, Salameh PK, Steele LP, Krummel PB, Wang R.HJ, Young D, Lunder C.R, Hermansen O., Rhee T.S, Kim J., Reimann S., O'Doherty S, Fraser PJ, Simmonds PG, Prinn RG, Weiss RF
JournalGeophysical Research Letters
Date Published2014/03
Type of ArticleArticle
ISBN Number0094-8276
Accession NumberWOS:000334264900056
Keywordsatmospheric abundance; climate; emissions; gases; HFC-43-10mee; in-situ measurements; lifetimes; mass; oh; radiative forcing; radicals; spectrometry; trends

We report in situ atmospheric measurements of hydrofluorocarbon HFC-43-10mee (C5H2F10; 1,1,1,2,2,3,4,5,5,5-decafluoropentane) from seven observatories at various latitudes, together with measurements of archived air samples and recent Antarctic flask air samples. The global mean tropospheric abundance was 0.210.05ppt (parts per trillion, dry air mole fraction) in 2012, rising from 0.040.03ppt in 2000. We combine the measurements with a model and an inverse method to estimate rising global emissionsfrom 0.430.34Ggyr(-1) in 2000 to 1.130.31Ggyr(-1) in 2012 (similar to 1.9TgCO(2)-eqyr(-1) based on a 100year global warming potential of 1660). HFC-43-10meea cleaning solvent used in the electronics industryis currently a minor contributor to global radiative forcing relative to total HFCs; however, our calculated emissions highlight a significant difference from the available reported figures and projected estimates.

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