title: Persistent halogenated compounds in aquaculture environments of South China: implications for global consumers' health risk via fish consumption.
abstract: This study examined the potential sources of persistent halogenated compounds (PHCs), including organochlorine pesticides, mainly DDXs (sum of o,p'- and p,p'-DDT, -DDD, and -DDE and p,p'-DDMU) and polybrominated diphenyl ethers, to typical aquaculture environments of South China, determined the relative importance of gill diffusion and fish feeding for exposure of fish to these contaminants and assessed potential health risk for global consumers via consumption of fish from South China. Fish feed is generally a direct and important source of PHCs in both freshwater and seawater aquaculture. In addition, gill diffusion is the predominant uptake route for PHCs (except p,p'-DDMU, o,p'-DDD and -DDT) in farmed freshwater fish, whereas accumulation from the diet is the major route for farmed marine fish. Risks to health of global consumers via consumption of fish from South China are minimal. However, increased risk can be foreseen due to continuous use of brominated fire retardants and electronic waste importation to China.
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Huan-Yun
authors.initials: HY
authors.lastname: Yu
authors.forename: Bao-Zhong
authors.initials: BZ
authors.lastname: Zhang
authors.forename: John P
authors.initials: JP
authors.lastname: Giesy
authors.forename: Eddy Y
authors.initials: EY
authors.lastname: Zeng
mesh_terms: D000818:Animals; D017756:Aquaculture / Q000706:statistics & numerical data*; D002681:China; D003634:DDT / Q000032:analysis / Q000378:metabolism; D003633:Dichlorodiphenyl Dichloroethylene / Q000031:analogs & derivatives / Q000032:analysis / Q000378:metabolism; D003632:Dichlorodiphenyldichloroethane / Q000032:analysis / Q000378:metabolism; D004032:Diet / Q000706:statistics & numerical data; D059029:Electronic Waste / Q000032:analysis; D004781:Environmental Exposure / Q000032:analysis / Q000706:statistics & numerical data*; D005399:Fishes / Q000378:metabolism*; D005411:Flame Retardants / Q000032:analysis / Q000378:metabolism; D005618:Fresh Water / Q000737:chemistry; D055768:Halogenated Diphenyl Ethers / Q000032:analysis / Q000378:metabolism; D006801:Humans; D006846:Hydrocarbons, Halogenated / Q000032:analysis* / Q000378:metabolism; D010575:Pesticides / Q000032:analysis; D018570:Risk Assessment; D017747:Seafood / Q000706:statistics & numerical data; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D005411:Flame Retardants; D055768:Halogenated Diphenyl Ethers; D006846:Hydrocarbons, Halogenated; D010575:Pesticides; D014874:Water Pollutants, Chemical; D003633:Dichlorodiphenyl Dichloroethylene; D003634:DDT; D003632:Dichlorodiphenyldichloroethane