Reference : Perfluorinated chemicals infiltrate ocean waters: Link between exposure levels and stabl...
Scientific journals : Article
Life sciences : Environmental sciences & ecology
Life sciences : Aquatic sciences & oceanology
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/644
Perfluorinated chemicals infiltrate ocean waters: Link between exposure levels and stable isotope ratios in marine mammals
English
Van de Vijver, Kristin Inneke [Universiteit Antwerpen - UA > Department of Biology > > >]
Hoff, Philippe Tony [Universiteit Antwerpen - UA > Department of Biology > > >]
Das, Krishna mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Van Dongen, Walter [Universiteit Antwerpen - UA > Nucleoside Research and Mass Spectrometry Unit > > >]
Esmans, Eddy Louis [Universiteit Antwerpen - UA > Nucleoside Research and Mass Spectrometry Unit > > >]
Jauniaux, Thierry mailto [Université de Liège - ULg > Département de morphologie et pathologie > Département de morphologie et pathologie >]
Bouquegneau, Jean-Marie [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Blust, Ronny [Universiteit Antwerpen - UA > Department of Biology > > >]
De Coen, Wim [Universiteit Antwerpen - UA > Department of Biology > > >]
15-Dec-2003
Environmental Science & Technology
Amer Chemical Soc
37
24
5545-5550
Yes (verified by ORBi)
International
0013-936X
Washington
[en] stable isotopes ; perflurorinated organochemicals ; marine mammals ; North Sea ; pollutants ; harbour porpoise ; harbour seal ; PFOs ; sperm whale ; white beaked dolphin ; striped dolphin ; fin whale ; gray seal
[en] This is the first study to report on concentrations of perfluorinated organochemicals (FOCs) in marine mammals stranded along the southern North Sea coast in relation to stable nitrogen and carbon isotope ratios (delta(15)N and delta(13)C). The presence of FOCs in top predators such as marine mammals would indicate a potential biomagnification of these compounds and their widespread occurrence. Liver and kidney tissues of nine marine mammal species have been sampled. Among all the measured FOCs compounds, PFOS (perfluorooctane sulfonate) was predominant in terms of concentration. The highest PFOS concentrations were found in the liver of harbor seal compared to white-beaked dolphin, harbor porpoise, gray seal, sperm whale, white-sided dolphin, striped dolphin, fin whale, and hooded seal. PFOS concentrations differed significantly between sexes and age classes in harbor porpoises. Stable isotope measurements (delta(13)C and delta(15)N) were used in this study to describe the behavior of contaminants in food webs. We found a significant (p < 0.05) linear relationship between PFOS concentrations in livers of harbor porpoises and both Muscle delta(13)C and delta(15)N measurements. Harbor and gray seals and white-beaked dolphin, which displayed the highest trophic position, contained the highest PFOS levels, while offshore feeders such as sperm whales,fin whales, striped dolphin, and white-sided dolphin showed lower PFOS concentrations than inshore species.
Centre Interfacultaire de Recherches en Océanologie - MARE
FWO-Flanders ; Belgian office for Scientific, Technical and Cultural Affairs (contract MN/DD/50) ; Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA ; Marie-Curie Fellowship (EC)
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/644

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