Polychlorinated biphenyls including coplanar congeners and DDT compounds were measured in the liver of a teleost species: namely, Xiphias gladius. PCB concentrations (median: 1121 ng/g lipid wt) were comparable with DDT levels (median: 1236 ng/g lipid wt). PCBs revealed a profile dominated by hexa-, penta- and heptachlorinated congeners. Among DDTs, the compound in the greatest concentration was p,p0-DDE, representing 70% of the total DDT burden, followed by o,p0-DDT > p,p0-DDT > p,p0-DDD = o,p0-DDD. Mean total 2,3,7,8-TCDD equivalent of five coplanar PCBs was 8.83 pg/g lipid weight. The isomers with higher TEQs values were non-ortho congeners than mono-ortho ones.

OCCURRENCE AND ACCUMULATION OF ORGANOCHLORINE CONTAMINANTS IN SWORDFISH FROM MEDITERRANEAN SEA: A CASE STUDY

STORELLI, Maria Maddalena;
2006

Abstract

Polychlorinated biphenyls including coplanar congeners and DDT compounds were measured in the liver of a teleost species: namely, Xiphias gladius. PCB concentrations (median: 1121 ng/g lipid wt) were comparable with DDT levels (median: 1236 ng/g lipid wt). PCBs revealed a profile dominated by hexa-, penta- and heptachlorinated congeners. Among DDTs, the compound in the greatest concentration was p,p0-DDE, representing 70% of the total DDT burden, followed by o,p0-DDT > p,p0-DDT > p,p0-DDD = o,p0-DDD. Mean total 2,3,7,8-TCDD equivalent of five coplanar PCBs was 8.83 pg/g lipid weight. The isomers with higher TEQs values were non-ortho congeners than mono-ortho ones.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11586/5898
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