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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

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

Environmental science & technology, 2013-07, Vol.47 (14), p.7773-7779 [Periódico revisado por pares]

Washington, DC: American Chemical Society

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Título:
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
Autor: Hu, Jicheng ; Zheng, Minghui ; Liu, Wenbin ; Li, Changliang ; Nie, Zhiqiang ; Liu, Guorui ; Xiao, Ke ; Dong, Shujun
Assuntos: Air. Soil. Water. Waste. Feeding ; Benzofurans - toxicity ; Biological and medical sciences ; Body weight ; Chemical compounds ; China ; Dibenzofurans, Polychlorinated ; Dioxins ; Environment. Living conditions ; Human exposure ; Humans ; Medical sciences ; Occupational Exposure ; Occupational health ; Occupational medicine ; PCB ; Polychlorinated biphenyls ; Polychlorinated Biphenyls - toxicity ; Polychlorinated Dibenzodioxins - analogs & derivatives ; Polychlorinated Dibenzodioxins - toxicity ; Public health. Hygiene ; Public health. Hygiene-occupational medicine ; Risk assessment
É parte de: Environmental science & technology, 2013-07, Vol.47 (14), p.7773-7779
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
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Descrição: 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.
Editor: Washington, DC: American Chemical Society
Idioma: Inglês

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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

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

Washington, DC: American Chemical Society

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