title: A novel pollution pattern: Highly chlorinated biphenyls retained in Black-crowned night heron (Nycticorax nycticorax) and Whiskered tern (Chlidonias hybrida) from the Yangtze River Delta.
abstract: Contamination of organochlorine pesticides (OCPs), polychlorinated diphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), hydroxylated polybrominated diphenyl ethers (OH-PBDEs) and their methylated counterparts (MeO-PBDEs) were determined in Black-crowned night heron (Nycticorax nycticorax) and Whiskered tern (Chlidonias hybrida) from two drinking water sources, e.g. Tianmu lake and East Tai lake in Yangtze River Delta, China. A novel PCBs contamination pattern was detected, including 11% and 6.9% highly chlorinated biphenyls (PCBs with eight to ten chlorines) in relation to total PCB concentrations in the Black-crowned night heron and Whiskered tern eggs, respectively. The predominating OCPs detected in the present study were 4,4'-DDE, with concentration range 280-650 ng g(-1) lw in Black-crowned night heron and 240-480 ng g(-1) lw in Whiskered tern, followed by β-HCH and Mirex. 6-MeO-BDE-90 and 6-MeO-BDE-99 are the two predominant congeners of MeO-PBDEs whereas 6-OH-BDE-47 contributes mostly to the OH-PBDEs in both species. Contamination level was considered as median or low level compared global data.
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Analytical and Toxicology Chemistry Unit, Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden.
authors.forename: Yihui
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Analytical and Toxicology Chemistry Unit, Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden. Electronic address: ge.yin@aces.su.se.
authors.forename: Ge
authors.initials: G
authors.lastname: Yin
authors.affiliation: Analytical and Toxicology Chemistry Unit, Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden.
authors.forename: Lillemor
authors.initials: L
authors.lastname: Asplund
authors.affiliation: Key Laboratory of Yangtze River Water Environment (Ministry of Education), College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Yanling
authors.initials: Y
authors.lastname: Qiu
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Swedish Museum of Natural History, Box 50007, SE-10405 Stockholm, Sweden.
authors.forename: Anders
authors.initials: A
authors.lastname: Bignert
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Zhiliang
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Jianfu
authors.initials: J
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Analytical and Toxicology Chemistry Unit, Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden; Swedish Toxicology Sciences Research Center, Forskargatan 20, SE-15136 Södertälje, Sweden.
authors.forename: Åke
authors.initials: Å
authors.lastname: Bergman
mesh_terms: D000818:Animals; D001717:Birds; D002681:China; D004784:Environmental Monitoring; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D060106:Lakes; D010063:Ovum / Q000737:chemistry; D010575:Pesticides / Q000032:analysis*; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D055768:Halogenated Diphenyl Ethers; D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical
keywords: Organochlorine pesticides (OCPs); Polybrominated diphenyl ethers (PBDEs); Polychlorinated diphenyls (PCBs); Water bird; Yangtze river delta (YRD)