Spatial trends of polyfluorinated compounds in guillemot (Uria aalge) eggs from North-Western Europe

Karin Löfstrand, Hrönn Jörundsdóttir, Gregg Tomy, Jörundur Svavarsson, Pál Weihe, Torgeir Nygård, Åke Bergman

Rannsóknarafurð: Framlag til fræðitímaritsGreinritrýni

41 Tilvitnanir (Scopus)

Útdráttur

Polyfluorinated alkyl compounds (PFCs) are a group of chemicals of growing concern that have been detected in biological and abiotic samples worldwide. This study reports the concentrations of a suite of PFCs: perfluorooctyl sulfonate (PFOS), perfluorooctyl sulfonamide (PFOSA) and perfluorinated carboxylic acids (PFCAs) in guillemot (Uria aalge) eggs, collected in North-Western Europe, from Iceland, the Faroe Islands, Sweden and two locations in Norway. The highest concentrations of PFOS were found in samples from Sweden (mean 400 ng g-1 wet weight (w.w.)), which were almost five times higher than concentrations found in Norwegian samples (mean 85 ng g-1 w.w. from both sample sites). The concentrations found in Icelandic and Faroe samples were lowest (mean 16 and 15 ng g-1 w.w., respectively). Only Swedish samples differed significantly from the other locations. In general, PFCAs show a different spatial trend than PFOS. Perfluorooctanoic acid (PFOA) was not detected in any sample and perfluorononanoic acid (PFNA) was only detected in samples from Sweden. The most abundant PFCA was perfluoroundecanoic acid (PFUA) with highest concentrations in samples from Sweden (mean 82 ng g-1 w.w.), samples from the Faroe Islands had the second highest concentration (mean 57 ng g-1 w.w.) and samples from Iceland and Norway had concentrations ranging between 18 and 30 ng g-1 w.w. The original hypothesis was based on the idea that PFC concentrations are the highest close to more densely populated and industrialized areas and lower levels in remote areas. However, the geographic pattern is more complicated than predicted and varies among different PFCs.

Upprunalegt tungumálEnska
Síður (frá-til)1475-1480
Síðufjöldi6
FræðitímaritChemosphere
Bindi72
Númer tölublaðs10
DOI
ÚtgáfustaðaÚtgefið - ágú. 2008

Athugasemd

Funding Information:
We like to thank the egg pickers, Páll Marvin Jónsson in Iceland, Geir Helge Systad in Norway and those from the Faroe Islands. Mats Hjelmberg and Henrik Dahlgren at the Swedish Museum of Natural History are acknowledged for all sample preparation. The project was supported by the Nordic Council of Ministers (sea and air quality group and environment monitoring and data group) though a grant to the CAPNE project (a comparative assessment of persistent organic pollutants and their metabolites, with emphasis on non-traditional contaminants, in the West Nordic and the Baltic Proper environments, CAPNE).

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