Occupational Exposure to Polychlorinated Dibenzo-p-dioxins and Dibenzofurans, Dioxin-like Polychlorinated Biphenyls, and Polychlorinated Naphthalenes in Workplaces of Secondary Nonferrous Metallurgical Facilities in China

Jicheng Hu; Minghui Zheng; Wenbin Liu; Changliang Li; Zhiqiang Nie; Guorui Liu; Ke Xiao; Shujun Dong

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Occupational Exposure to Polychlorinated Dibenzo-p-dioxins and Dibenzofurans, Dioxin-like Polychlorinated Biphenyls, and Polychlorinated Naphthalenes in Workplaces of Secondary Nonferrous Metallurgical Facilities in China

机译：中国二级有色冶金设施工作场所的多氯二苯并对二恶英和二苯并呋喃，二恶英类多氯联苯和多氯萘的职业暴露

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The concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), and polychlorinated naphthalenes (PCNs) were determined in workplace air from eight secondary nonferrous metal processing plants to investigate occupational exposure to these toxic compounds. The total estimated daily intakes of PCDD/Fs and dl-PCBs for workers by inhalation in the workplace were in the range of 0.15-9.91 and 0.13-8.59 pg of WHO-TEQ/kg of body weight (bw) for moderate and light activities, respectively. The daily inhalation doses for workers in the workplaces of three investigated plants exceeded the tolerable daily intake recommended by the World Health Organization. These results indicate that the risk of occupational exposure to dioxins by inhalation in the workplace of plants investigated was considerably high. For PCNs, the daily inhalation doses for workers in the workplace were in the range of 0.005-4.46 and 0.004-3.87 pg of TEQ/kg of bw for moderate and light activities, respectively, which were lower than those of dioxins. To identify the source of PCDD/Fs, PCBs, and PCNs in workplace air, their homologue profiles were compared with those in stack gas from the plants investigated. It was found that significant dioxin contamination in workplace air was mainly attributed to the emission of fugitive gas from smelting furnaces during reclamation processes.

机译：测定了八个二级有色金属加工厂的工作场所空气中的多氯二苯并对二恶英和二苯并呋喃（PCDD / Fs），类二恶英类多氯联苯（dl-PCBs）和多氯萘（PCNs）的浓度，以调查职业暴露这些有毒化合物。在中度和轻度活动中，通过工作场所吸入的工人每天估计摄入的PCDD / Fs和dl-PCBs总量在WHO-TEQ的0.15-9.91和0.13-8.59 pg WHO-TEQ / kg体重之间，分别。在三个被调查工厂的工作场所中，工人的每日吸入剂量超过了世界卫生组织建议的每日容许摄入量。这些结果表明，在所调查植物的工作场所通过吸入职业性接触二恶英的风险相当高。对于PCN，中度和轻度活动工人在工作场所的每日吸入剂量分别为0.005-4.46和0.004-3.87 pg TEQ / kg体重，低于二恶英。为了确定工作场所空气中PCDD / F，PCB和PCN的来源，将它们的同系物谱与所研究工厂的烟气中的同系物谱进行了比较。结果发现，工作场所空气中二恶英的污染主要归因于填海过程中冶炼炉散发的逃逸性气体。

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来源
《Environmental Science & Technology》 |2013年第14期|7773-7779|共7页
作者
Jicheng Hu; Minghui Zheng; Wenbin Liu; Changliang Li; Zhiqiang Nie; Guorui Liu; Ke Xiao; Shujun Dong;
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作者单位

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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机译：居住在天津某化工厂附近的孕妇脐带血中的多氯二苯并对二恶英多氯二苯并呋喃和类似二恶英的多氯联苯
7. Occupational Exposure to Polychlorinated Dibenzo-p-dioxins and Dibenzofurans, Dioxin-like Polychlorinated Biphenyls, and Polychlorinated Naphthalenes in Workplaces of Secondary Nonferrous Metallurgical Facilities in China [O] . Hu Jicheng, Zheng Minghui, Liu Wenbin, 2013

机译：中国二级有色冶金设施工作场所的多氯二苯并对二恶英和二苯并呋喃，二恶英类多氯联苯和多氯萘的职业暴露

Occupational Exposure to Polychlorinated Dibenzo-p-dioxins and Dibenzofurans, Dioxin-like Polychlorinated Biphenyls, and Polychlorinated Naphthalenes in Workplaces of Secondary Nonferrous Metallurgical Facilities in China

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