부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.chemosphere.2008.05.011 Byline: Karin Lofstrand (a), Hronn Jorundsdottir (a), Gregg Tomy (b), Jorundur Svavarsson (c), Pal Weihe (d), Torgeir NygA[yen]rd (e), a'ke Bergman (a) Keywords: PFOS; PFOA; PFOSA; Perfluorinated compounds; Birds Abstract: 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 400ngg.sup.-1 wet weight (w.w.)), which were almost five times higher than concentrations found in Norwegian samples (mean 85ngg.sup.-1 w.w. from both sample sites). The concentrations found in Icelandic and Faroe samples were lowest (mean 16 and 15ngg.sup.-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 82ngg.sup.-1 w.w.), samples from the Faroe Islands had the second highest concentration (mean 57ngg.sup.-1 w.w.) and samples from Iceland and Norway had concentrations ranging between 18 and 30ngg.sup.-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. Author Affiliation: (a) Department of Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden (b) Freshwater Institute, Department of Fisheries and Oceans, Winnipeg, Manitoba, Canada R3T 2N6 (c) Institute of Biology, University of Iceland, Askja, Sturlugata 7, 101 Reykjavik, Iceland (d) Department of Occupational Medicine and Public Health, Faroese Hospital System, Torshavn, Faroe Islands (e) Norwegian Institute for Nature Research, Tungasletta 2, N-7485 Trondheim, Norway Article History: Received 24 November 2007; Revised 1 May 2008; Accepted 5 May 2008