Increasing levels of long-chain perfluorocarboxylic acids (PFCAs) in Arctic and North Atlantic marine mammals, 1984-2009

Temporal variations in concentrations of perfluorinated carboxylic acids (PFCAs) and sulfonic acids (PFSAs), including perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) structural isomers, were examined in livers of pilot whale (Globicephala melas), ringed seal (Phoca hisida), minke wha...

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Bibliographic Details
Published in:Chemosphere
Main Authors: Rotander, A., Kärrman, A., Bavel, B.v., Polder, A., Riget, Frank Farsø, Audunsson, G.A., Víkingsson, G., Gabrielsen, G.W., Bloch, D., Dam, M.
Format: Article in Journal/Newspaper
Language:English
Published: 2011
Subjects:
Arctic
Greenland
Balaenoptera acutorostrata
Balaenoptera physalus
Cystophora cristata
hooded seal
minke whale
North Atlantic
Phocoena phocoena
ringed seal
Online Access:https://pure.au.dk/portal/da/publications/increasing-levels-of-longchain-perfluorocarboxylic-acids-pfcas-in-arctic-and-north-atlantic-marine-mammals-19842009(ba0cfb3a-07f1-4396-85af-fd99b42c7613).html
https://doi.org/10.1016/j.chemosphere.2011.09.054
http://www.scopus.com/inward/record.url?scp=80054986846&partnerID=8YFLogxK
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Summary:Temporal variations in concentrations of perfluorinated carboxylic acids (PFCAs) and sulfonic acids (PFSAs), including perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) structural isomers, were examined in livers of pilot whale (Globicephala melas), ringed seal (Phoca hisida), minke whale (Balaenoptera acutorostrata), harbor porpoise (Phocoena phocoena), hooded seal (Cystophora cristata), Atlantic white-sided dolphin (Lagenorhynchus acutus) and in muscle tissue of fin whales (Balaenoptera physalus). The sampling spanned over 20 years (1984-2009) and covered a large geographical area of the North Atlantic and West Greenland. Liver and muscle samples were homogenized, extracted with acetonitrile, cleaned up using hexane and solid phase extraction (SPE), and analyzed by liquid chromatography with negative electrospray tandem mass spectrometry (LC-MS/MS). In general, the levels of the long-chained PFCAs (C9-C12) increased whereas the levels of PFOS remained steady over the studied period. The PFOS isomer pattern in pilot whale liver was relatively constant over the sampling years. However, in ringed seals there seemed to be a decrease in linear PFOS (L-PFOS) with time, going from 91% in 1984 to 83% in 2006.

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