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Sources and distribution of polychlorinated-dibenzo-p-dioxins and -dibenzofurans in soil and sediment from the Yellow Sea region of China and Korea |
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| Authors: | Naile Jonathan E Khim Jong Seong Wang Tieyu Wan Yi Luo Wei Hu Wenyou Jiao Wentao Park Jinsoon Ryu Jongseong Hong Seongjin Jones Paul D Lu Yonglong Giesy John P |
| Institution: | a Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, SK, Canada b Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-713, Republic of Korea c State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Science, Beijing, People’s Republic of China d State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, People’s Republic of China e School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, Canada f Department of Zoology, Center for Integrative Toxicology, Michigan State University, E. Lansing, MI, USA g Zoology Department, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia h Department of Biology & Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China |
| Abstract: | Polychlorinated-dibenzo-p-dioxins and -dibenzofurans (PCDD/Fs) were measured in soils and sediments from the Yellow Sea region. Korean soils and sediments mostly contained detectable PCDD/Fs and showed a widespread distribution among locations. Soil and sedimentary PCDD/Fs from China were comparable to or less than those in Korea. The patterns of relative concentrations of individual congeners in soils were different between the two countries, but similar in sediments. Sources of PCDD/Fs in China and Korea were found to be independent of each other and their distributions reflected matrix-dependent accumulation. Spatial distribution indicated some point sources in Korea while Chinese sources were more widespread and diffuse. PCDD/Fs measured in the coastal areas of the Yellow Sea were comparable to or less than those previously reported in for eastern Asia. However, ∑TEQs in soils and sediments were near to or, in some cases exceeded environmental quality guidelines. |
| Keywords: | Dioxins Furans Soil Sediment quality guidelines Risk assessment Yellow Sea |
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