Formation of PCDD/Fs and PCBs in the process of production of 1,4-dichlorobenzene
文献类型：期刊论文
| 作者 | Liu, WB; Zheng, MH; Wang, DS; Xing, Y; Zhao, XR; Ma, XD; Qian, Y |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2004 |
| 卷号 | 57期号:10页码:1317-1323 |
| 关键词 | PCDD/Fs PCBs mothball p-DCB dioxin precursors production |
| 英文摘要 | The occurrence and distribution of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) in a typical process of production of 1,4-dichlorobenzene (p-DCB) were investigated systematically in this study. P(5)CDFs and H(6)CDFs were the main congeners of PCDD/Fs, while only low levels of other PCDD/Fs were detected in the samples. The concentrations of PCBs were up to 4614ng/g in the semi-manufactured products, and 1797ng/g in the product p-DCB. It was also found that high chlorinated PCB congeners increased with the further chlorination. The levels of PCDD/Fs decreased obviously in the purification process, while PCBs could not be removed effectively. Polychlorophenols and other important dioxin precursors (1,4-dichloro-2-phenoxybenzene and 2-phenyl-2',5,5'-trichlorophenol) were also analyzed. Polychlorophenols which ortho- and para- positions of the hydroxyl were substituted by chlorine were the main congeners. In addition, a possible pathway of the formation of PCDD/Fs and PCBs in the production of p-DCB was presented. The results of this article suggest that re-estimation on the risk of using p-DCB products, especially the products for daily use such as mothballs, is expected. (C) 2004 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000225119100009 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23447]  |
| 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 | Liu, WB,Zheng, MH,Wang, DS,et al. Formation of PCDD/Fs and PCBs in the process of production of 1,4-dichlorobenzene[J]. CHEMOSPHERE,2004,57(10):1317-1323. |
| APA | Liu, WB.,Zheng, MH.,Wang, DS.,Xing, Y.,Zhao, XR.,...&Qian, Y.(2004).Formation of PCDD/Fs and PCBs in the process of production of 1,4-dichlorobenzene.CHEMOSPHERE,57(10),1317-1323. |
| MLA | Liu, WB,et al."Formation of PCDD/Fs and PCBs in the process of production of 1,4-dichlorobenzene".CHEMOSPHERE 57.10(2004):1317-1323. |
入库方式： OAI收割
来源：生态环境研究中心
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