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High levels of perfluoroalkyl acids in eggs and embryo livers of great cormorant (Phalacrocorax carbo sinensis) and herring gull (Larus argentatus) from Lake Vanern, Sweden
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2013 (English)In: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 20, no 11, 8021-8030 p.Article in journal (Refereed) Published
Abstract [en]

In the eggs and developing chick livers in the two wild bird species, great cormorant and herring gull, the concentrations of a range of 15 perfluoroalkyl acids (PFAAs) were determined. Eggs of the two species were collected from Lake Vanern, Sweden, and analysed either as undeveloped egg (whole egg or separated into yolk and albumen) or incubated until start of the hatching process when the chick liver was removed and analysed. High levels of PFAAs were found in all matrixes except albumen. The predominant PFAA was perfluorooctane sulfonate (PFOS), which was found in the mu g/g wet weight (ww) range in some samples of cormorant whole egg, yolk and liver and herring gull egg yolk and liver. The average concentration in yolk was 1,506 ng/g ww in cormorant and 589 ng/g ww in herring gull. The average liver concentrations of PFOS were 583 ng/g ww in cormorant and 508 ng/g ww in herring gull. At these concentrations, biochemical effects in the developing embryo or effects on embryo survival cannot be ruled out. For perfluoroalkyl carboxylates (PFCAs), the liver/egg and liver/yolk concentration ratios increased with PFCA chain length in cormorant but not in herring gull, indicating that chain length could possibly affect egg-to-liver transfer of PFCAs and that species differences may exist.

Place, publisher, year, edition, pages
2013. Vol. 20, no 11, 8021-8030 p.
Keyword [en]
PFAAs, PFASs, Perfluorooctane sulfonate, Herring gull, Great cormorant, Transfer, Egg, Liver
National Category
Ecology Environmental Sciences
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URN: urn:nbn:se:su:diva-96875DOI: 10.1007/s11356-013-1567-3ISI: 000325811600047OAI: oai:DiVA.org:su-96875DiVA: diva2:668081
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AuthorCount:3;

Available from: 2013-11-28 Created: 2013-11-28 Last updated: 2017-12-06Bibliographically approved

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