Warning message

Member access has been temporarily disabled. Please try again later.
The website is undergoing a major upgrade. Until that is complete, the current site will be visible but logins are disabled.

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

Arnold, T., D. J. Ivy, C. M. Harth, M. K. Vollmer, J. Mühle, P. K. Salameh, L. P. Steele, P. B. Krummel, R. H. J. Wang, D. Young, C. R. Lunder, O. Hermansen, T. S. Rhee, J. Kim, S. Reimann, S. O’Doherty, P. J. Fraser, P. G. Simmonds, R. G. Prinn, and R. Weiss (2014), HFC-43-10mee atmospheric abundances and global emission estimates, Geophys. Res. Lett., 41, 2228-2235, doi:10.1002/2013GL059143.
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 0.21 ± 0.05 ppt (parts per trillion, dry air mole fraction) in 2012, rising from 0.04 ± 0.03 ppt in 2000. We combine the measurements with a model and an inverse method to estimate rising global emissions—from 0.43 ± 0.34 Gg yr-1 in 2000 to 1.13 ± 0.31 Gg yr-1 in 2012 (~1.9 Tg CO2-eq yr-1 based on a 100 year global warming potential of 1660). HFC-43-10mee—a cleaning solvent used in the electronics industry—is 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.

PDF of Publication: 
Download from publisher's website.