title: Legacy and emerging halogenated organic pollutants in marine organisms from the Pearl River Estuary, South China.
abstract: A suite of legacy and emerging halogenated organic pollutants (HOPs) were measured in marine organisms (coastal fish and invertebrates) from the Pearl River Estuary, South China, to investigate the current contamination status after the Stockholm Convention was implemented in China. Dichlorodiphenyltrichloroethane and its metabolites (DDTs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) were detected in all samples at concentrations of 54-1500, 16-700, and 0.56-59ng/g lipid weight, respectively. Dechlorane Plus (DP), decabromodiphenyl ethane (DBDPE), 2,3,5,6-tetrabromo-p-xylene (pTBX), and pentabromotoluene (PBT) were also found at concentrations of ND (non-detectable) to 37ng/g lipid weight. The concentrations of these investigated contaminants in the present study were at moderate levels, as compared with those reported in other regions. Significant interspecies differences were found in the levels of DDTs, PCBs, PBDEs and the alternative halogenated flame retardants (AHFRs). DDTs were the predominant HOPs in those species and represented >50% of the total HOPs, followed by PCBs, PBDEs, and AHFRs. The total estimated daily intakes (EDIs) of DDTs, PCBs, PBDEs, and AHFRs were 28, 12, 1.0, and 0.18 (ng/kg)/d, respectively, via seafood consumption. These concentrations are not expected to pose health risks to humans.
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
authors: Run-Xia
authors: RX
authors: Sun
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China. Electronic address: luoxiaoj@gig.ac.cn.
authors: Xiao-Jun
authors: XJ
authors: Luo
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
authors: Xiao-Xin
authors: XX
authors: Tan
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
authors: Bin
authors: B
authors: Tang
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
authors: Zong-Rui
authors: ZR
authors: Li
authors: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China.
authors: Bi-Xian
authors: BX
authors: Mai
mesh_terms: D000818:Animals; D059001:Aquatic Organisms / Q000737:chemistry*; D002681:China; D004784:Environmental Monitoring; D063366:Estuaries; D005399:Fishes; D006801:Humans; D006846:Hydrocarbons, Halogenated / Q000032:analysis*; D007448:Invertebrates / Q000737:chemistry; D045483:Rivers / Q000737:chemistry*; D017747:Seafood; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006846:Hydrocarbons, Halogenated; D014874:Water Pollutants, Chemical
keywords: Bioaccumulation; Human exposure; Marine organisms; Pearl River Estuary; Persistent halogenated compounds