Flux of perfluorinated chemicals through wet deposition in Japan, the United States, and several other countries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

90 Scopus Citations
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Author(s)

  • Karen Y. Kwok
  • Sachi Taniyasu
  • Leo W. Y. Yeung
  • Margaret B. Murphy
  • Paul K. S. Lam
  • And 5 others
  • Yuichi Horii
  • Kurunthachalam Kannan
  • Gert Petrick
  • Ravindra K. Sinha
  • Nobuyoshi Yamashita

Detail(s)

Original languageEnglish
Pages (from-to)7043-7049
Journal / PublicationEnvironmental Science and Technology
Volume44
Issue number18
Publication statusPublished - 15 Sep 2010

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 (n = 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. © 2010 American Chemical Society.

Citation Format(s)

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.; Yamashita, Nobuyoshi.

In: Environmental Science and Technology, Vol. 44, No. 18, 15.09.2010, p. 7043-7049.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review