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Perfluorinated and other persistent halogenated organic compounds in European shag (Phalacrocorax aristotelis) and common eider (Somateria mollissima) from Norway: A suburban to remote pollutant gradient
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2009 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 408, no 2, 340-348 p.Article in journal (Refereed) Published
Abstract [en]

Samples of two marine bird species, European shag (Phalacrocorax aristotelis) and common eider (Somateria mollissima) sampled at a remote coastal site in Norway were analysed for POPs and PFCs. Additionally samples of common eider were analysed from two other locations in Norway, representing a gradient from "densely populated" to "remote". The variety, concentration and distribution of lipophilic POPs in comparison to PFCs were investigated. PCBs were the dominating group of contaminants in the analysed egg samples. Shag eggs had median sum PCBs levels of 4580 ng/g l.w. in 2004. Six different PBDE congeners could be detected in the shag eggs. BDE 47 and 100 were the main contributors with 24 and 27 ng/g l.w. respectively, sum PBDEs was 90 ng/g l.w. Relatively high concentrations of chlordanes were found witha total sum of 903 ng/g l.w. Of other OCs, toxaphene 26 and 52 together (sum 657 ng/g l.w.) and HCB (165 ng/g l.w.) were contributing majorly to the egg burden. Sum HCHs were low; only 54 ng/g l.w. PFOS was the main PFC in egg, plasma and liver samples. Similar median levels of 29,32 and 27 ng/g w.w. were observed. PFOSA, PFHxS, and PFDcA were observed additionally in all shag samples at minor concentrations with the exception of elevated levels observed in liver for PFOSA and PFDcA with median levels of 7.6 and 7.9 ng/g w.w., respectively. In common eider eggs, the POP concentrations decreased up to 1/8th along the sampled spatial gradient from suburban to remote. of the 9 detected PFCs, PFOS dominated all samples by one order of magnitude, followed by PFOA. Sum PFC concentrations were twice as high at the two fjord sites compared to the remote site. Shorter chained PFCAs like PFOA and PFNA could be detected in the eider eggs whilst being absent in shag eggs.

Place, publisher, year, edition, pages
Elsevier , 2009. Vol. 408, no 2, 340-348 p.
Keyword [en]
Alkyl substances, Contaminants, Eggs, Food-web, Guillemot uria-aalge, Marine birds, Norway, PBDE, PCB, Perfluorinated compounds, Perfluorooctane Sulfonate, PFOS, Plasma, POPs, Remote, Sea, Spatial trends, Temporal trends, Tissue distribution, Urban
National Category
Zoology Biological Sciences Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-34932DOI: 10.1016/j.scitotenv.2009.08.048ISI: 000272564500020ISBN: 0048-9697OAI: diva2:286007
Available from: 2010-01-13 Created: 2010-01-13 Last updated: 2011-03-22Bibliographically approved

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Berger, Urs
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