Flux of Perfluorinated Chemicals through Wet Deposition in Japan, the United States, And Several Other Countries.

Kwok, Karen Y., Taniyasu, Sachi, Yeung, Leo W. Y., Murphy, Margaret B., Lam, Paul K. S., Horii, Yuichi, Kannan, Kurunthachalam, Petrick, Gert, Sinha, Ravindra K. and Yamashita, Nobuyoshi (2010) Flux of Perfluorinated Chemicals through Wet Deposition in Japan, the United States, And Several Other Countries. Environmental Science & Technology, 44 (18). pp. 7043-7049. DOI 10.1021/es101170c.

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Abstract

The widespread distribution of perfluorinated chemicals (PFCs) in different environmental matrices has prompted concern about the sources, fate, and transport of these classes of chemicals. PFCs are present in the atmosphere, but only a few studies have investigated their occurrence in precipitation. In this study, concentrations of 20 PFCs, including C3-C5 short-chain PFCs, were quantified using HPLC-MS/MS in precipitation samples from Japan (n = 31), the United States In = 12), China (n = 5), India (n = 2), and France (n = 2). Among the PFCs measured, perfluoropropanoic acid (PFPrA) was detected in all of the precipitation samples. Average total PFC concentrations ranged from 1.40 to 18.1 ng/L for the seven cities studied. The greatest total PFC concentrations were detected in Tsukuba, Japan, whereas the lowest concentrations were detected in Patna, India. PFPrA, perfluorooctanoic acid (PFOA), and perfluorononanoic acid (PFNA) were found to be the dominant PFCs in Japanese and U.S. precipitation samples. No observable seasonal trend was found in precipitation samples from two locations in Japan. Annual fluxes of PFCs were estimated for Japan and the U.S. and the evidence for precipitation as an effective scavenger of PFCs in the atmosphere is reported.

Document Type: Article
Keywords: Marine chemistry; ATMOSPHERIC PRECIPITATION; INITIATED OXIDATION; ORGANIC-COMPOUNDS; CARBOXYLIC-ACIDS; SURFACE-WATER; URBAN; OH; CHINA; CHEMISTRY; ALCOHOLS
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1021/es101170c
ISSN: 0013-936X
Date Deposited: 11 Jan 2012 06:38
Last Modified: 12 Sep 2018 13:22
URI: http://oceanrep.geomar.de/id/eprint/13362

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