title: Temporal trend, spatial distribution, and terrestrial sources of PBDEs and PCBs in Masan Bay, Korea.
abstract: Congener specific determination of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) was carried out in 21 surface sediment samples and a sediment core from Masan Bay, Korea. Among the 40 PBDE congeners targeted only 29 were detectable. PBDE congener profile within sediments was dominated by BDE-209 followed by BDEs-99, -47, -153 and -183, sequentially. In surface sediments, the average ΣPBDEs levels approached that of average ΣPCBs values. However, trends observed in the sediment core suggest that this pattern will alter over time and result in higher surface sediment PBDE concentrations than PCBs in future. Various diffuse and point sources for PBDEs and PCBs were identified in this location. Shipping and other industrial activities were associated with PCB contamination while domestic and industrial waste discharges corresponded with PBDE contamination. The average concentration for PBDEs and PCBs in surface sediments were 5.7, 7.2 ng/g dry weight, respectively.
authors.affiliation: Oil and POPs Research Group, Korea Ocean Research and Development Institute, 391 Jangmok-myon, Geoje-shi 656-834, Republic of Korea.
authors.forename: Sang Hee
authors.initials: SH
authors.lastname: Hong
authors.forename: Narayanan
authors.initials: N
authors.lastname: Kannan
authors.forename: Yongnu
authors.initials: Y
authors.lastname: Jin
authors.forename: Jong Ho
authors.initials: JH
authors.lastname: Won
authors.forename: Gi Myung
authors.initials: GM
authors.lastname: Han
authors.forename: Won Joon
authors.initials: WJ
authors.lastname: Shim
mesh_terms: D055768:Halogenated Diphenyl Ethers / Q000737:chemistry*; D007723:Korea; D009792:Oceans and Seas; D011078:Polychlorinated Biphenyls / Q000737:chemistry*; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014877:Water Pollution, Chemical / Q000032:analysis*
chemical_list: D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls