Survey on organochlorine pesticides, PCDD/Fs, dioxin-like PCBs and HCB in sediments from the Han river, Korea.
The contamination status of twelve persistent organic pollutants (POPs) on the Stockholm convention in the surface sediments of Han river, which is one of the largest river in the South Korea were investigated. Five organochlorine pesticides (OCPs) such as aldrin, dieldrin, endrin, mirex, and SigmaCHLs (alpha-chlordane, gamma-chlordane, cis-nonachlor, trans-nonachlor, and heptachlor) were not detected in all sediment samples. The overall concentrations of DDTs, HCB, dioxin-like PCBs (DL-PCBs) and PCDD/Fs were in the range of 1.05-8.94microgkg(-1) (average value: 3.93microgkg(-1)), 0.485-3.73microgkg(-1) (1.48microgkg(-1)), 41.5-4,530ngkg(-1) (548ngkg(-1)), and 23.1-368ngkg(-1) (131ngkg(-1)), respectively. The principal source of HCB, DL-PCBs and PCDD/Fs was identified as a deposition in this study. For the DL-PCBs, it was also shown that commercial PCBs product (Kanechlor 500 and/or Aroclor 1254) plays a role as a source in sediment.
Kim
Kyoung-Soo
KS
Division of Environmental, Landscape Architecture & Civil Engineering, Cheongju University, Cheongju 360-764, Republic of Korea.
Lee
Sang Chun
SC
Department of Nano-Engineering, Kyungnam University, Masan 631-701, Republic of Korea.
Kim
Ki-Ho
KH
The Center for Instrumental Analysis, Kyungnam University, Masan 631-701, Republic of Korea.
Shim
Won Joon
WJ
Marine Environmental Risk Assessment Research Division, Korea Ocean Research and Development Institute, Geojei 656-834, Republic of Korea.
Hong
Sang Hee
SH
Marine Environmental Risk Assessment Research Division, Korea Ocean Research and Development Institute, Geojei 656-834, Republic of Korea.
Choi
Kyung Hee
KH
Environmental Exposure Assessment Division, National Institute of Environmental Research, Incheon 440-708, Republic of Korea.
Yoon
Jun Heon
JH
Environmental Exposure Assessment Division, National Institute of Environmental Research, Incheon 440-708, Republic of Korea.
Kim
Jong-Guk
JG
Department of Environmental Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea. Electronic address: kjongguk@chonbuk.ac.kr.
D001572:Benzofurans / Q000032:analysis*; D000072338:Dibenzofurans, Polychlorinated; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D019015:Geologic Sediments / Q000032:analysis*; D006581:Hexachlorobenzene / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D007723:Korea; D010573:Pesticide Residues / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D045483:Rivers / Q000737:chemistry*
D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D010573:Pesticide Residues; D000072317:Polychlorinated Dibenzodioxins; D006581:Hexachlorobenzene; D011078:Polychlorinated Biphenyls