中国一个拥有多个与热能相关产业的城市中空气、土壤和沉积物中的 PCDD/Fs、DL-PCBs 和 HCB 水平。
Levels of PCDD/Fs, Dl-PCBs and HCB in air, soils and sediments from a city with multiple thermal-related industries in China.
机构信息
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
出版信息
Bull Environ Contam Toxicol. 2012 Sep;89(3):542-6. doi: 10.1007/s00128-012-0735-3. Epub 2012 Jul 19.
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/m(3) 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.
在中国唐山，存在多个与热力相关的产业，我们在当地多个环境介质中测量了多氯二苯并对二恶英/呋喃（PCDD/Fs）、二恶英类多氯联苯（dl-PCBs）和六氯苯（HCB）的含量。空气中此类污染物的总毒性当量浓度为 138 ± 87.2 fg/m(3)，土壤中为 3.43 ± 2.88 pg/g，沉积物中为 1.42 ± 1.5 pg/g。大气样本中的 2,3,7,8-PCDD/Fs 分布表明，热力相关产业可能是最主要的潜在污染源。在所检测的 dl-PCBs 中，CB-77、CB-105 和 CB-118 是最主要的同系物，而 CB-126 是 dl-PCBs 毒性当量的主要贡献者。
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