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Organochlorine contaminants in Caspian and harbour seal blubber

Research output: Contribution to journalArticle

Author(s)

A J Hall, C D Duck, R J Law, C R Allchin, S Wilson, T Eybator

School/Research organisations

Abstract

Organochlorine contaminants (pesticides and individual polychlorinated biphenyl congeners, PCBs) were measured in Caspian (Phoca caspica) seal blubber and compared with concentrations in Harbour (Phoca vitulina) seal blubber. Concentrations of total dichlorodiphenyltrichloroethane (DDT) and its metabolites were significantly higher in Caspian seal than Harbour seal samples, whereas PCB congeners were significantly higher in Harbour than Caspian seals. Our finding suggests that Caspian seals are exposed to high levels of DDT pesticides. In contrast, PCBs are circulating in this population at much lower levels than in marine mammals from the North Sea. (C) 1999 Elsevier Science Ltd. All rights reserved.

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Original languageEnglish
Pages (from-to)203-212
Number of pages10
JournalEnvironmental Pollution
Volume106
Publication statusPublished - 1999

    Research areas

  • organochlorine, contaminants, Harbour seal, Caspian seal, blubber, ADIPOSE-TISSUE, PHOCA-VITULINA, RESIDUE LEVELS, WADDEN SEA, MAMMALS, REPRODUCTION, PATTERNS, ANATOMY, FISH

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