Estimation and characterization of PCDD/Fs and dioxin-like PCB emission from secondary zinc and lead metallurgies in China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Estimation and characterization of PCDD/Fs and dioxin-like PCB emission from secondary zinc and lead metallurgies in China
	Ba, Te; Zheng, Minghui; Zhang, Bing; Liu, Wenbin; Su, Guijin; Xiao, Ke
刊名	JOURNAL OF ENVIRONMENTAL MONITORING
	2009
卷号	11 期号:4 页码:867-872
中文摘要	Secondary zinc and lead production is addressed as one of the potential sources of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dioxin-like PCBs) due to the impurity of the raw material. However, the release inventory of PCDD/Fs and dioxin-like PCBs is very scarce for these secondary nonferrous metallurgies. This study selected typical secondary zinc and lead plants to investigate the emissions of PCDD/Fs and dioxin-like PCBs released from such plants in China. The toxic equivalent quantity (TEQ) emission factor of PCDD/Fs and dioxin-like PCBs released into the environment is higher for secondary zinc production, at 52 298.02 ng TEQ ton(-1) than for secondary lead production, at 646.05 ng TEQ ton(-1). The most abundant congeners of PCDD/Fs are 2,3,4,7,8-PeCDF and 1,2,3,4,6,7,8-HpCDF for the secondary zinc and lead metallurgies, respectively. The most abundant congener of dioxin-like PCBs in the samples collected from both metallurgies is CB-126. According to the distribution of PCDD/Fs (PCDF/PCDD >> 1) and the dominant contribution of higher chlorinated congeners, the de novo synthesis is assumed to be the main formation pathway of PCDD/Fs in the secondary zinc metallurgies. For the secondary lead metallurgies, the role of precursor formation is also very important. Based on the emission factor and production level, the total estimated emission amounts of PCDD/Fs and dioxin-like PCBs in both stack gas and fly ash released into the environment from secondary zinc and lead production is estimated to be at least 2.76 and 0.42 g TEQ yr(-1), respectively. The dioxin-like PCBs contribute 2.8% and 0.6% of the total emission from secondary zinc and lead plants, respectively.
WOS记录号	WOS:000265017000024
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21501]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Ba, Te,Zheng, Minghui,Zhang, Bing,et al. Estimation and characterization of PCDD/Fs and dioxin-like PCB emission from secondary zinc and lead metallurgies in China[J]. JOURNAL OF ENVIRONMENTAL MONITORING,2009,11(4):867-872.
APA	Ba, Te,Zheng, Minghui,Zhang, Bing,Liu, Wenbin,Su, Guijin,&Xiao, Ke.(2009).Estimation and characterization of PCDD/Fs and dioxin-like PCB emission from secondary zinc and lead metallurgies in China.JOURNAL OF ENVIRONMENTAL MONITORING,11(4),867-872.
MLA	Ba, Te,et al."Estimation and characterization of PCDD/Fs and dioxin-like PCB emission from secondary zinc and lead metallurgies in China".JOURNAL OF ENVIRONMENTAL MONITORING 11.4(2009):867-872.