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Early Contamination of European Flounder (Platichthys Flesus) by PCDD/Fs and Dioxin-Like PCBs in European Waters

Early Contamination of European Flounder (Platichthys Flesus) by PCDD/Fs and Dioxin-Like PCBs in European Waters

Margarida Nunes, Filipe Martinho, Anaïs Vernisseau, Philippe Marchand, Bruno Le Bizec, Henk W van der Veer, Henrique N Cabral, Fernando Ramos, Miguel A Pardal

Mar Pollut Bull. 2014 Aug 15;85(1):292-6.

PMID: 24913072

Abstract:

Contamination levels and profiles of 7 polychlorinated-p-dioxins, 10 polychlorinated furans (PCDD/Fs) and 12 dioxin-like polychlorinated biphenyls (dl-PCBs) were investigated in juvenile European flounder (Platichthys flesus) captured in different nursery areas in the northeastern Atlantic coast across its geographical distribution range. The toxic equivalent concentrations (WHO-TEQfish) were also determined in order to evaluate which P. flesus population was more exposed to dioxin-like toxicity. Juveniles caught in the Sørfjord (Norway) showed the lowest WHO-TEQfish concentration (0.052 pg WHO-TEQfish g(-1)wet weight) whereas the highest value was observed in fish from the Wadden Sea (The Netherlands; 0.291 pg WHO-TEQfish g(-1)ww), mainly due to the greater contribution of 2,3,7,8-tetrachlorodibenzo-p-dioxin, the most toxic congener. Nonetheless, when comparing the results with existent tissue residue-based toxicity benchmarks, no adverse effects resulting from PCDD/Fs and dl-PCBs are expected to occur in flounder from the studied systems.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42168	Dioxins and Furans in Tissue - PT			Price

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