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Tissue-specific accumulation and lactational transfer of polychlorinated biphenyls, chlorinated pesticides, and brominated flame retardants in hooded seals (Cistophora cristata) from the Gulf of St. Lawrence: applications for monitoring.
Örebro University, Department of Natural Sciences. (MTM)ORCID iD: 0000-0001-6217-8857
2006 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 142, no 3, p. 476-486Article in journal (Refereed) Published
Abstract [en]

Accumulation and mother-pup transfer of halogenated organic contaminants was studied in hooded seal tissues from eastern Canada. Blubber polychlorinated biphenyl (PCB) and total pesticide concentrations were relatively high, possibly due to their high trophic level and demersal feeding habits. Blood plasma showed the lowest contaminant concentrations compared to blubber and liver, possibly due to a lower affinity of these compounds to lipoproteins in blood plasma. Total contaminant body burden correlated well with blubber, liver, and milk contaminants, but not with blood plasma contaminants, indicating that blood plasma might be less suitable to monitor contaminants in hooded seals. Lactational transfer favored less lipophilic contaminants and was associated with relatively high blood plasma PCB and polybrominated diphenyl ether concentrations in females. Despite lactational transfer, females did not show significantly lower blubber contaminant concentrations or burdens than males. This might be caused by their low blubber, and thus contaminant, loss during lactation compared to other species.

Place, publisher, year, edition, pages
2006. Vol. 142, no 3, p. 476-486
National Category
Natural Sciences Chemical Sciences Environmental Sciences
Research subject
Chemistry; Environmental Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-5315DOI: 10.1016/j.envpol.2005.10.031PubMedID: 16325312OAI: oai:DiVA.org:oru-5315DiVA, id: diva2:158681
Available from: 2009-02-03 Created: 2009-02-03 Last updated: 2017-12-14Bibliographically approved

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van Bavel, Bert

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