title: Persistent organochlorine residues and toxic evaluation of polychlorinated biphenyls in sharks from the Mediterranean Sea (Italy).
abstract: Persistent organochlorines such as polychlorinated biphenyls including coplanar congeners, DDT compounds and HCB were measured in different tissues (muscle, liver and eggs) of two Mediterranean shark species: namely Centrophorus granulosus and Squalus blainvillei. The concentrations of organochlorines in the tissues and organs of both species were in the order DDTs > PCBs > HCB. The highest values of DDTs, PCBs and HCB were found in liver followed by eggs and muscle. Among DDTs the compound found in greatest concentration was p,p'-DDE. The PCB profiles were dominated by congeners 138, 153, and 180. The isomers with higher TEQs values were non- and mono-ortho congeners than di-ortho ones in muscle, liver and eggs of both species. Among the non-ortho, PCB 126 was the major contributing individual to the total TEQs in both species.
authors.affiliation: Dipartimento Farmaco-Biologico, Sezione di Chimica e Biochimica, Veterinary Medicine Faculty, University of Bari, Valenzano, Italy.
authors.forename: M M
authors.initials: MM
authors.lastname: Storelli
authors.forename: G O
authors.initials: GO
authors.lastname: Marcotrigiano
mesh_terms: D000818:Animals; D003634:DDT / Q000032:analysis; D004785:Environmental Pollutants / Q000032:analysis*; D006581:Hexachlorobenzene / Q000032:analysis; D007306:Insecticides / Q000032:analysis*; D007536:Isomerism; D007558:Italy; D008099:Liver / Q000737:chemistry / Q000378:metabolism; D008522:Mediterranean Sea; D009132:Muscles / Q000737:chemistry / Q000378:metabolism; D009928:Organ Specificity; D010063:Ovum / Q000737:chemistry / Q000378:metabolism; D010573:Pesticide Residues / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D012754:Sharks / Q000378:metabolism*; D013045:Species Specificity; D014018:Tissue Distribution
chemical_list: D004785:Environmental Pollutants; D007306:Insecticides; D010573:Pesticide Residues; D006581:Hexachlorobenzene; D003634:DDT; D011078:Polychlorinated Biphenyls