The levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs) and hexachlorobenzene (HCB) were measured in various environmental compartments in Tangshan, China, which contains multiple thermal-related industries. The total toxic equivalent concentrations of these pollutants were 138 ± 87.2 fg/m3 in air, 3.43 ± 2.88 pg/g in soils, and 1.42 ± 1.5 pg/g in sediments. The 2,3,7,8-PCDD/Fs profiles in atmospheric samples suggest that thermal-related industries are the most likely potential sources. Of the dl-PCBs, CB-77, CB-105 and CB-118 were the most abundant congeners and CB-126 was the dominant contributor to the TEQs from the dl-PCBs.
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This study was financially supported by the Chinese Academy of Sciences (Grant KZXZ-YW-JS406), National 973 program (2009CB421606) and National Natural Science Foundation of China (5108346, 20977099).
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Li, C., Zheng, M.H., Zhang, B. et al. Levels of PCDD/Fs, Dl-PCBs and HCB in Air, Soils and Sediments from a City with Multiple Thermal-Related Industries in China. Bull Environ Contam Toxicol 89, 542–546 (2012). https://doi.org/10.1007/s00128-012-0735-3
- Thermal-related industries