title: Residues, sources and tissue distributions of organochlorine pesticides in dog sharks (Mustelus griseus) from Zhoushan Fishing Ground, China.
abstract: Ten dog sharks (Mustelus griseus) collected from Zhoushan Fishing Ground, China, were analysed for organochlorine pesticides in various tissues, including muscle, liver, skin, gill and fin, with the aim to study the residues, sources and tissue distributions of these chemicals in high trophic level marine fishes. The concentrations of DDTs, HCHs, and chlordanes varied from 7.27-26.62, 2.67-3.35, and 0.54-0.61 ng/g wet weight, respectively, with the estimated daily intake far below the acceptable daily intake and Chinese edible hygienic criteria. Data from the tissue distribution suggested a tendency of DDTs and chlordanes to accumulate in the liver, but for HCHs, direct gill penetration may be an important means of entrance. In addition, the compositional profiles indicated that the residues of HCHs and chlordanes mainly originated from the historical usage of these chemicals. However, the predominant maternal compounds and the o,p'-DDT/p,p'-DDT ratios reflected a recent use of dicofol.
authors.affiliation: International Joint Research Center for Persistent Toxic Substances, College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Zhou
authors.forename: Lu
authors.initials: L
authors.lastname: Tong
authors.forename: Qiaozhi
authors.initials: Q
authors.lastname: Tang
authors.forename: Xiaoting
authors.initials: X
authors.lastname: Gu
authors.forename: Bin
authors.initials: B
authors.lastname: Xue
authors.forename: Weiping
authors.initials: W
authors.lastname: Liu
mesh_terms: D000818:Animals; D002681:China; D004784:Environmental Monitoring; D005398:Fisheries; D006843:Hydrocarbons, Chlorinated / Q000378:metabolism*; D010573:Pesticide Residues / Q000378:metabolism; D010575:Pesticides / Q000378:metabolism*; D012754:Sharks / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006843:Hydrocarbons, Chlorinated; D010573:Pesticide Residues; D010575:Pesticides; D014874:Water Pollutants, Chemical
keywords: Chlordane; Dichlorodiphenyltrichloroethane; East China Sea; Hexachlorocyclohexane