title: Persistent halogenated compounds in two typical marine aquaculture zones of South China.
abstract: Samples of two seawater farmed fish (crimson snapper (Lutjanus erythopterus) and snubnose pompano (Trachinotus blochii)), water, air, sediment, fish feed, macroalgae and phytoplankton were collected from two estuarine bays (Daya Bay and Hailing Bay) in South China. The concentrations of persistent halogenated compounds (PHCs) including polybrominated diphenyl ethers (PBDEs), organochlorine pesticides and polychlorinated biphenyls (PCBs) varied widely with the different sample matrices under investigation. The compositional patterns in fish, fish feed, macroalgae and phytoplankton, as well as the good correlations between the abundances of p,p'-DDT and BDE-209 and their metabolites (i.e., p,p'-DDD and p,p'-DDE for p,p'-DDT and BDE-47 for BDE-209) in fish indicated the occurrence of DDT and PBDE biotransformation in fish body. Finally, the marine aquaculture environment in South China is somewhat biologically impaired by DDT-contaminated water, sediment and fish feed, and there may be some cancer risk associated with fish consumption for humans, especially for urban residents.
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, China.
authors.forename: Huan-Yun
authors.initials: HY
authors.lastname: Yu
authors.forename: Ying
authors.initials: Y
authors.lastname: Guo
authors.forename: Lian-Jun
authors.initials: LJ
authors.lastname: Bao
authors.forename: Yao-Wen
authors.initials: YW
authors.lastname: Qiu
authors.forename: Eddy Y
authors.initials: EY
authors.lastname: Zeng
mesh_terms: D000818:Animals; D017756:Aquaculture / Q000706:statistics & numerical data*; D002681:China; D004784:Environmental Monitoring; D005399:Fishes / Q000378:metabolism*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis / Q000378:metabolism*; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000032:analysis / Q000378:metabolism*; D010575:Pesticides / Q000032:analysis / Q000378:metabolism; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism*; D018570:Risk Assessment; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D055768:Halogenated Diphenyl Ethers; D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls