DISTRIBUTION PATTERNS OF DIOXIN LIKE PCBS (DL-PCBS) IN SURFACE SEDIMENTS FROM THE FOUR MAIN RIVER BASINS IN KOREA
This paper was performed to investigate the concentration levels and to identify the possible sources of 12 dioxin like polychlorinated biphenyls (DL-PCBs, IUPAC number PCB-77, 81, 105, 114, 118, 123, 126, 156, 157, 157, 167, 169 and 189) in sediment from four main river basins (i.e., rivers and lakes) in Korea including Han river, Nakdong river, Geum river and Yeongsan river. In Korea, riverine and lacustrine waters have been mainly used as the source of water supply not only industrial and agricultural usage but also tap water for public. Therefore, it is important to analyze the residual hazardous micro-pollutants in water environment. In this study, the overall concentration of DL-PCBs of 83 lake sediment samples were in the range of 4.292 - 461.1 pg/g-dry (0.000 - 0.568 pg TEQ/g-dry) and in case of 135 river sediment samples, the concentration ranged from 1.809 to 124292.4 pg/g-dry (0.000 - 41.19 pg TEQ/g-dry). Penta-CBs (＃118 and #105), major components among 12 DL-PCBs contained in commercial PCB products, were the most dominant (over 65％) congeners in sediment.
Kim U-J Lee I-S Lee S-H Huh I-A Oh J-E
Department of Civil and Environmental Engineering,Pusan National University,Busan 609-735,Republic o Korea Environment & Resources Corporation (ENVICO),Incheon 404-708,Republic of Korea National Institute of Environmental Research (NIER),Incheon 440-708,Republic of Korea
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）