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Assessment of Distribution Patterns and Sources for PAHs, OCPs, and Co-PCBs in the Surface Sediments from the Nakdong River Basin, Korea  

Kang, Hee-Hyung (Department of Civil and Environmental Engineering, Pusan National University)
Lee, In-Seok (Department of Civil and Environmental Engineering, Pusan National University)
Huh, In-Ae (National Institute of Environmental Research)
Shin, Won-Sik (Department of Environmental Engineering, Kyungpook National University)
Hwang, In-Sung (Department of Civil and Environmental Engineering, Pusan National University)
Kim, Young-Hoon (Department of Environmental Engineering, Andong National University)
Hur, Jin (Department of Earth, Sejong University)
Shin, Hyun-Sang (Department of Environmental Engineering, Seoul National University of Technology)
Kim, Joon-Ha (School of Environmental Science&Engineering, Gwangju Institute of Science and Technology)
Oh, Jeong-Eun (Department of Civil and Environmental Engineering, Pusan National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.32, no.7, 2010 , pp. 656-664 More about this Journal
Abstract
We investigated the levels and distribution patterns of 16 priority polycyclic aromatic hydrocarbons (PAHs), 12 Coplanar polychlorinated biphenyls (Co-PCBs) and organochlorine pesticides (OCPs) in the surface sediments from the Nakdong river basin, Korea. The levels of 16 PAHs and 12 Co-PCBs in the river sediment samples ranged from not detected (N.D.)~969.3 ng/g-dry, 4.2~7716.5 pg/g-dry (0.0~10.1 pg-TEQ/g-dry), respectively. Also, the levels of 16 PAHs were from 5.8~2987.2 ng/g-dry and 4.3~461.1 pg/g-dry (0.0~0.6 pg-TEQ/g-dry) for 12 Co-PCBs in the lake sediment samples. Only dichloro-diphenyl-trichloroethane (DDT) were detected among target OCPs and the concentration ranged from N.D.~1.5 ng/g-dry in the river sediment samples. These contamination levels were far below the guideline values suggested for environmental quality assessment. Low molecular weight PAHs were dominant in the river sediment samples, while middle and high molecular weight PAHs were dominant among 16 PAHs in the lake sediment samples. PCB-118 and PCB-105 were predominant congeners in the sediment, which were similar to the results obtained from previous studies. With these results, the assessment of potential sources of PAHs and Co-PCBs contamination in the sediments of the Nakdong river basin was performed. The pyrogenic-PAHs originated from combustion of fossil fuel and biomass were related with the PAHs contribution in most of the sediment samples, and Co-PCBs in the sediment samples were related with commercial PCB products.
Keywords
PAHs; Co-PCBs; OCPs; Sediment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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