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Characterization of polychlorinated dibenzo-p-dioxins and dibenzofurans, dioxin-like polychlorinated biphenyls, and polychlorinated naphthalenes in the environment surrounding secondary copper and aluminum metallurgical facilities in China

Unintentionally produced persistent organic pollutants (UP-POPs) were determined in ambient air from around five secondary non-ferrous metal processing plants in China, to investigate the potential impacts of the emissions of these plants on their surrounding environments. The target compounds were...

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Published in:Environmental pollution (1987) 2014-10, Vol.193, p.6-12
Main Authors: Hu, Jicheng, Zheng, Minghui, Liu, Wenbin, Nie, Zhiqiang, Li, Changliang, Liu, Guorui, Xiao, Ke
Format: Article
Language:English
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Summary:Unintentionally produced persistent organic pollutants (UP-POPs) were determined in ambient air from around five secondary non-ferrous metal processing plants in China, to investigate the potential impacts of the emissions of these plants on their surrounding environments. The target compounds were polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), and polychlorinated naphthalenes (PCNs). The PCDD/F, dl-PCB, and PCN concentrations in the ambient air downwind of the plants were 4.70–178, 8.23–7520 and 152–4190 pg/m3, respectively, and the concentrations upwind of the plants were lower. Clear correlations were found between ambient air and stack gas concentrations of the PCDD/Fs, dl-PCBs, and PCNs among the five plants, respectively. Furthermore, the UP-POPs homolog and congener patterns in the ambient air were similar to the patterns in the stack gas samples. These results indicate that UP-POPs emissions from the plants investigated have obvious impacts on the environments surrounding the plants. •Five secondary non-ferrous metal processing plants were studied.•PCDD/Fs, PCBs, and PCNs were analyzed simultaneously in ambient air samples.•Ambient air contamination was significantly influenced by emissions from the plants.•Markedly high PCDD/F concentrations were found around a secondary copper smelter. This study suggested that atmospheric PCDD/F, PCB, and PCN contaminations near secondary non-ferrous metal smelters were affected by emissions from the investigated plants.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2014.06.007