Perfluoroalkyl substances in polar bear mother-cub pairs: A comparative study based on plasma levels from 1998 and 2008

J. Bytingsvik, S. Leeuwen, T. Hamers, C.P. Swart, J. Aars, E. Lie, E.M. Espseth Nilsen, O. Wiig, A. E. Derocher, B.M. Jenssen

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Perfluoroalkyl substances (PFASs) are protein-binding blood-accumulating contaminants that may have detrimental toxicological effects on the early phases of mammalian development. To enable an evaluation of the potential health risks of PFAS exposure for polar bears (Ursus maritimus), an exposure assessment was made by examining plasma levels of PFASs in polar bear mothers in relation to their suckling cubs-of-the-year (~4months old). Samples were collected at Svalbard in 1998 and 2008, and we investigated the between-year differences in levels of PFASs. Seven perfluorinated carboxylic acids (∑
Original languageEnglish
Article number11
Pages (from-to)92-99
JournalEnvironment International
Volume49
Early online date23 Sep 2012
DOIs
Publication statusPublished - 2012

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