title: Biomagnification of persistent chlorinated and brominated contaminants in food web components of the Yellow Sea.
abstract: Concentrations of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs) were measured in 32 species inhabiting the Yellow Sea to assess their bioaccumulation potentials. The concentrations in these samples were lower than those reported for other countries or locations. Relatively high levels of BDE 209 in biota suggest an ongoing source of deca-BDE technical mixing within the Yellow Sea. The accumulation profiles of PCBs were uniform between species, but the concentrations of OCPs and PBDEs varied widely. Pelagic and benthic food-chain components were separated by their δ(13)C values. Significant positive correlations between δ(15)N and PCB 153, PCB 138, p,p'-DDE, oxy-chlordane, and trans-nonachlordane were found only for pelagic consumers, indicating that the pelagic food chain is an important bioaccumulation pathway for selected PCB and OCP compounds. The other compounds did not show any biomagnification through benthic and pelagic food chains, suggesting the lower bioaccumulation potentials of these contaminants.
authors.affiliation: POSTECH Ocean Science and Technology Institute, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea.
authors.forename: Gyo-Hyuk
authors.initials: GH
authors.lastname: Byun
authors.forename: Hyo-Bang
authors.initials: HB
authors.lastname: Moon
authors.forename: Jung-Hwa
authors.initials: JH
authors.lastname: Choi
authors.forename: Jeomshik
authors.initials: J
authors.lastname: Hwang
authors.forename: Chang-Keun
authors.initials: CK
authors.lastname: Kang
mesh_terms: D000818:Animals; D059001:Aquatic Organisms / Q000378:metabolism*; D004784:Environmental Monitoring; D005411:Flame Retardants / Q000032:analysis / Q000378:metabolism; D020387:Food Chain; D055768:Halogenated Diphenyl Ethers / Q000032:analysis* / Q000378:metabolism; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000378:metabolism; D010575:Pesticides / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism
chemical_list: D005411:Flame Retardants; D055768:Halogenated Diphenyl Ethers; D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls
keywords: Benthic; Bioaccumulation potentials; Cetacean; OCPs; PBDEs; PCBs; Pelagic; Yellow Sea