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Environmental Science and Pollution Research

, Volume 20, Issue 11, pp 8013–8020 | Cite as

PFAS profiles in three North Sea top predators: metabolic differences among species?

  • Anders GalatiusEmail author
  • Rossana Bossi
  • Christian Sonne
  • Frank Farsø Rigét
  • Carl Christian Kinze
  • Christina Lockyer
  • Jonas Teilmann
  • Rune Dietz
Nordic Research on Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

Abstract

Profiles of seven compounds of perfluoro-alkyl substances (PFASs) were compared among three species of top predators from the Danish North Sea: the white-beaked dolphin (Lagenorhynchus albirostris), the harbor porpoise (Phocoena phocoena), and the harbor seal (Phoca vitulina). The seals had higher total burdens (757.8 ng g−1 ww) than the dolphins (439.9 ng g−1 ww) and the porpoises (355.8 ng g−1 ww), probably a reflection of feeding closer to the shore and thus contamination sources. The most striking difference among the species was the relative contribution of perfluorooctanesulfonamide (PFOSA) to the profiles; the seals (0.1 %) had much lower levels than porpoises (8.3 %) and dolphins (26.0 %). In combination with the values obtained from the literature, this result indicates that Carnivora species including Pinnipedia have a much higher capacity of transforming PFOSA to perfluorooctane sulfonic acid (PFOS) than cetacean species. Another notable difference among the species was that the two smaller species (seals and porpoises) with supposedly higher metabolic rates had lower concentrations of the perfluorinated carboxylic acids, which are generally more easily excreted than perfluorinated sulfonamides. Species-specific characteristics should be recognized when PFAS contamination in marine mammals is investigated, for example, several previous studies of PFASs in cetaceans have not quantified PFOSA.

Keywords

Harbor porpoise Harbor seal Metabolism North Sea Perfluorinated alkylated substances White-beaked dolphin 

Notes

Acknowledgments

The Natural History Museum, University of Copenhagen, DTU-Aqua, Danish Forest and Nature Agency, Department of Bioscience, Aarhus University Roskilde, and The Fisheries and Maritime Museum, Esbjerg funded the harbor porpoise and white-beaked dolphin sampling and storage. Svend Tougaard and Thyge Jensen (formerly the Fisheries and Maritime Museum, Esbjerg) helped in collecting the seals. Center for Game Health and Dept. of Environmental Science, Aarhus University provided funding for the analyses. Inga Jensen skillfully conducted the PFC analyses at the Department of Environmental Science laboratory, Aarhus University.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Anders Galatius
    • 1
    Email author
  • Rossana Bossi
    • 2
  • Christian Sonne
    • 1
  • Frank Farsø Rigét
    • 1
  • Carl Christian Kinze
    • 3
  • Christina Lockyer
    • 4
  • Jonas Teilmann
    • 1
  • Rune Dietz
    • 1
  1. 1.Department of BioscienceAarhus UniversityRoskildeDenmark
  2. 2.Department of Environmental ScienceAarhus UniversityRoskildeDenmark
  3. 3.Frederiksberg CDenmark
  4. 4.Age DynamicsKongens LyngbyDenmark

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