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

Tim Arnold*, Diane J. Ivy, Christina M. Harth, Martin K. Vollmer, Jens Muehle, Peter K. Salameh, L. Paul Steele, Paul B. Krummel, Ray H. J. Wang, Dickon Young, Chris R. Lunder, Ove Hermansen, Tae Siek Rhee, Jooil Kim, Stefan Reimann, Simon O'Doherty, Paul J. Fraser, Peter G. Simmonds, Ronald G. Prinn, Ray F. Weiss

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

8 Citations (Scopus)

Abstract

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.

Key Points

2012 global tropospheric abundance of HFC-43-10mee is 0.21 ppt 2012 growth rate is 15 ppq yr(-1), and emission rate is 1.13 Gg yr(-1) CO2 equivalent emissions of 1.9 Tg yr(-1) are comparable to HFC-365mfc and HFC-236fa

Original languageEnglish
Pages (from-to)2228-2235
Number of pages8
JournalGeophysical Research Letters
Volume41
Issue number6
DOIs
Publication statusPublished - 28 Mar 2014

Keywords

  • HFC-43-10mee
  • atmospheric abundance
  • radiative forcing
  • emissions
  • mass spectrometry
  • IN-SITU MEASUREMENTS
  • LIFETIMES
  • CLIMATE
  • RADICALS
  • TRENDS
  • GASES
  • OH

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