Occurrence and accumulation of organochlorine contaminants in swordfish from Mediterranean Sea: a case study.
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,p'-DDE, representing 70% of the total DDT burden, followed by o,p'-DDT>p,p'-DDT>p,p'-DDD=o,p'-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.
Pharmacological-Biological Department, Chemistry and Biochemistry Section, Veterinary Medicine Faculty, University of Bari, Strada prov. le per Casamassima, km 3, 70010 Valenzano, (BA), Italy.
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D000818:Animals; D004784:Environmental Monitoring; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000493:pharmacokinetics; D008099:Liver / Q000737:chemistry* / Q000378:metabolism; D008522:Mediterranean Sea; D010473:Perciformes / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000493:pharmacokinetics
D006843:Hydrocarbons, Chlorinated; D014874:Water Pollutants, Chemical