title: Evaluation of organochlorine contamination in Indo-Pacific humpback dolphins (Sousa chinensis) from the Pearl River Estuary, China.
abstract: Organochlorine compounds, including polychlorinated biphenyls (PCBs), dichlorodiphenyl trichloroethane (DDTs), hexachlorocyclohexane (HCHs), chlordanes (CHLs) and hexachlorobenzene (HCB) were analyzed in blubber samples collected from fifteen Indo-Pacific humpback dolphins (Sousa chinensis) stranded in the Pearl River Delta during the period from 2004 to 2009. In general, the magnitude of the mean concentrations is: ∑DDTs>∑PCBs>∑HCHs>∑CHLs>HCB. DDT levels found in this study were very high, with the ΣDDT ranging from 845 to 179,000 ng/g wet weight. Of particular importance is the fact that new inputs from diverse sources still exist in the Pearl River Delta. ∑PCBs ranged from 123 to 10,200 ng/g wet weight. More studies are necessary for a better understanding of these organochlorine contaminants and their impact on the conservation of humpback dolphins residing in the Pearl River Estuary waters.
authors.affiliation: Marine Biology Institute, Shantou University, Shantou, Guangdong 515063, PR China.
authors.forename: Yinglin
authors.initials: Y
authors.lastname: Wu
authors.forename: Jingchun
authors.initials: J
authors.lastname: Shi
authors.forename: Gene J
authors.initials: GJ
authors.lastname: Zheng
authors.forename: Ping
authors.initials: P
authors.lastname: Li
authors.forename: Bo
authors.initials: B
authors.lastname: Liang
authors.forename: Tufeng
authors.initials: T
authors.lastname: Chen
authors.forename: Yuping
authors.initials: Y
authors.lastname: Wu
authors.forename: Wenhua
authors.initials: W
authors.lastname: Liu
mesh_terms: D000273:Adipose Tissue / Q000737:chemistry; D000818:Animals; D002681:China; D003634:DDT / Q000032:analysis; D004289:Dolphins; D063366:Estuaries; D005260:Female; D006581:Hexachlorobenzene / Q000032:analysis; D001556:Hexachlorocyclohexane / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D008297:Male; D011078:Polychlorinated Biphenyls / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006843:Hydrocarbons, Chlorinated; D014874:Water Pollutants, Chemical; D006581:Hexachlorobenzene; D001556:Hexachlorocyclohexane; D003634:DDT; D011078:Polychlorinated Biphenyls