Polychlorinated biphenyls and organochlor pesticides in brown shrimp (Crangon crangon) of the Belgian continental shelf

Marc Raemaekers; Sabrine Derveaux; Koen Parmentier

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Polychlorinated biphenyls and organochlor pesticides in brown shrimp (Crangon crangon) of the Belgian continental shelf

In: Seafood research from fish to dish

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Marc Raemaekers

Marc Raemaekers
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Sabrine Derveaux

Sabrine Derveaux
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Koen Parmentier

Koen Parmentier
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Type:: Chapter

Pages:: 489–496

DOI:: https://doi.org/10.1163/9789086865819_052

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Abstract

This paper reports the concentrations and patterns of Polychlorinated Biphenyls (PCBs) and organochlor pesticides in brown shrimp from the Belgian part of the southern North Sea in the period 1994 - 2004. No significant trends could be found for any of the contaminants analysed, when expressed on lipid weight basis. The median content of the sum of 7 marker CBs (IUPAC Nos 28, 52, 101, 118, 138, 153 and 180) was 220 µg kg^-1 of extracted lipid, i.e. 3.4 µg kg^-1 of cooked tail muscle during this 11 year period. When expressed on wet weight basis however, a significant decreasing trend was found for the sum of 7 marker CBs. The PCB pattern did change significantly for the CB congeners 105, 138 and 180 with respect to CB congener 101 in brown shrimp. A redistribution of CB congeners in the marine environment of the Belgian continental shelf confirms the world-wide transportation and deposition model and seems to indicate a steady-state of PCB input in the Belgian part of the southern North Sea. Aldrin, endrin and trans-nonachlor could hardly be detected. HCB and the hexachloro cyclohexane isomers α-HCH and lindane were close to their limits of quantification (LOQs). The effective ban of pp′-DDT was illustrated since it was mainly found as its degradation products pp′-DDE and pp′-DDD. Hexachlorocyclohexane isomers behave similar as pp′-DDE and dieldrin in the marine environment, but might not be as persistent as the PCBs.

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Seafood research from fish to dish

Quality, safety and processing of wild and farmed seafood

E-Book ISBN:: 9789086865819

Publisher:: Wageningen Academic

Print Publication Date:: 01 Jan 2006

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- Life Sciences

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Polychlorinated biphenyls and organochlor pesticides in brown shrimp (Crangon crangon) of the Belgian continental shelf

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Citation Info

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Seafood research from fish to dish

Quality, safety and processing of wild and farmed seafood

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