Perfluorinated acid isomer profiling in water and quantitative assessment of manufacturing source

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

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Author(s)

  • Jonathan P. Benskin
  • Leo W. Y. Yeung
  • Nobuyoshi Yamashita
  • Sachi Taniyasu
  • Paul K. S. Lam
  • And 1 others
  • Jonathan W. Martin

Detail(s)

Original languageEnglish
Pages (from-to)9049-9054
Journal / PublicationEnvironmental Science and Technology
Volume44
Issue number23
Publication statusPublished - 1 Dec 2010

Abstract

A method for isomer profiling of perfluorinated compounds (PFCs) in water was developed and applied to quantitatively assess the contributions from electrochemical (ECF) and telomer manufacturing processes around source regions of North America, Asia, and Europe. With the exception of 3 sites in Japan, over 80% of total perfluorooctanoate (PFOA, C7F15COO -) was from ECF, with the balance attributable to strictly linear (presumably telomer) manufacturing source(s). Comparing PFOA isomer profiles in samples from China, with PFOA obtained from a local Chinese manufacturer, indicated 8F17SO3-) isomer profiles were enriched in branched content (i.e., >50% branched) in the Mississippi River but in all other locations were similar or only slightly enriched in branched content relative to historical ECF PFOS. Isomer profiles of other PFCs are also reported. Overall, these data suggest that, with the exception of Tokyo Bay, ECF manufacturing has contributed to the bulk of contamination around these source regions, but other sources are significant, and remote sites should be monitored. © 2010 American Chemical Society.

Citation Format(s)

Perfluorinated acid isomer profiling in water and quantitative assessment of manufacturing source. / Benskin, Jonathan P.; Yeung, Leo W. Y.; Yamashita, Nobuyoshi; Taniyasu, Sachi; Lam, Paul K. S.; Martin, Jonathan W.

In: Environmental Science and Technology, Vol. 44, No. 23, 01.12.2010, p. 9049-9054.

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