期刊
ENVIRONMENTAL POLLUTION
卷 162, 期 -, 页码 138-143出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2011.11.015
关键词
Pentachlorophenol; PCDD/Fs; Air soil; Sediment
资金
- Chinese Academy of Sciences [KZXZ-YW-JS406]
- National 973 program [2009CB421606]
- Ministry of Science and Technology of China [2008FY210100]
- National Natural Science Foundation of China [21007084, 20921063]
Air, soils and sediments surrounding an abandoned pentachlorophenol (PCP) factory were sampled to determine the levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), unintentionally formed during PCP production. The mean concentration of PCDD/Fs in ambient air was one order of magnitude higher than that of the reference site. A trend of decreasing concentrations with increasing distance from the factory was observed, suggesting this site has a significant influence on the regional ambient air. As for soil samples collected within 3 km from the factory and sediment samples from the adjacent rivers, high levels of contamination were found with WHO-TEQ concentrations of 193 +/- 211 pg/g and 667 +/- 978 pg/g, respectively. The PCDD/F homologue profiles of all samples were consistent with those found in the technical product of PCP, with OCDD as the dominant congener. These results indicate PCDD/Fs in the historical contaminated site pose a long-term impact on surrounding environment. (C) 2011 Elsevier Ltd. All rights reserved.
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