Temporal trend, spatial distribution, and terrestrial sources of PBDEs and PCBs in Masan Bay, Korea.
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.
Hong
Sang Hee
SH
Oil and POPs Research Group, Korea Ocean Research and Development Institute, 391 Jangmok-myon, Geoje-shi 656-834, Republic of Korea.
Kannan
Narayanan
N
Jin
Yongnu
Y
Won
Jong Ho
JH
Han
Gi Myung
GM
Shim
Won Joon
WJ
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*
D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls