Polychlorinated biphenyls in clams Tapes philippinarum cultured in the Venice Lagoon (Italy): contamination levels and dietary exposure assessment.
Total polychlorinated biphenyl (SigmaPCB) concentrations calculated as the sum of 21 and the toxicity equivalent (TEQ) of dioxin-like PCBs calculated on the basis of the toxic equivalent factors were assessed in Manila clams Tapes philippinarum cultured in the Venice Lagoon. The concentrations showed a predominance of hexa-chlorobiphenyls followed by penta-, hepta-, tetra- and tri-chlorobiphenyls. The highest levels of SigmaPCB detected were 4.01 ng/g, 2.71 ng/g and 2.68 ng/g wet weight at a southern lagoon site and two northern lagoon sites, respectively. There was a significant differentiation in toxicity levels between culture sites. The highest value was 0.239 pg TEQ/g at a southern lagoon site; the lowest was 0.004 pg TEQ/g at a central lagoon site.
Boscolo
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ICRAM, Istituto Centrale per la Ricerca Scientifica e Tecnologica Applicata al Mare, Loc. Brondolo, 30015 Chioggia, Venice, Italy. r.boscolo@icram.org
Cacciatore
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Berto
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D
Giani
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D000818:Animals; D049872:Bivalvia / Q000737:chemistry*; D005506:Food Contamination / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D007558:Italy; D008055:Lipids / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D015203:Reproducibility of Results
D008055:Lipids; D011078:Polychlorinated Biphenyls