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Formation of C7F15COOH (PFOA) and Other Perfluorocarboxylic Acids during the Atmospheric Oxidation of 8:2 Fluorotelomer Alcohol
journal contribution
posted on 2006-02-01, 00:00 authored by T. J. Wallington, M. D. Hurley, J. Xia, D. J. Wuebbles, S. Sillman, A. Ito, J. E. Penner, D. A. Ellis, J. Martin, S. A. Mabury, O. J. Nielsen, M. P. Sulbaek AndersenCalculations using a three-dimensional global atmospheric
chemistry model (IMPACT) indicate that n-C8F17CH2CH2OH (widely used in industrial and consumer products)
degrades in the atmosphere to give perfluorooctanoic acid
(PFOA) and other perfluorocarboxylic acids (PFCAs).
PFOA is persistent, bioaccumulative, and potentially toxic.
Molar yields of PFOA depend on location and season,
are in the range of 1−10%, and are of the correct order
of magnitude to explain the observed levels in Arctic fauna.
Fluorotelomer alcohols such as n-C8F17CH2CH2OH appear
to be a significant global source of persistent bioaccumulative
perfluorocarboxylic acid pollution. This is the first modeling
study of the atmospheric chemistry of a fluorotelomer
alcohol.
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PFOAAtmospheric OxidationIMPACTPFCAconsumer productsC 7 F 15 COOHperfluorooctanoic acidbioaccumulative perfluorocarboxylic acid pollutionFluorotelomer alcoholsC 8 F 17 CH 2 CH 2 OHOther Perfluorocarboxylic Acidsfluorotelomer alcoholArctic faunaMolar yieldschemistry modelperfluorocarboxylic acidsmodeling study
