Dioxin-like compounds in agricultural soils near e-waste recycling sites from Taizhou area, China: Chemical and bioanalytical characterization
文献类型：期刊论文
| 作者 | Shen, Chaofeng; Chen, Yingxu; Huang, Shengbiao; Wang, Zijian; Yu, Chunna; Qiao, Min; Xu, Yiping; Setty, Karen; Zhang, Jianying; Zhu, Youfeng |
| 刊名 | ENVIRONMENT INTERNATIONAL
 |
| 出版日期 | 2009-01 |
| 卷号 | 35期号:1页码:50-55 |
| 关键词 | E-waste Soil Dioxin-like compounds PCDD/Fs PCBs PAHs Chemical analysis EROD Bioassay |
| 中文摘要 | The crude recycling of electronic and electric waste (e-waste) is now creating a new set of environmental problems especially in developing countries such as China. The present study aimed to characterize the dioxin-like compounds in Taizhou area, one of the largest e-waste recycling centers in China, using both chemical analysis and in vitro bioassay. Agricultural soil samples were screened for aryl hydrocarbon receptor (AhR) activity with EROD bioassay in H411E cells, and the concentrations of the target AhR agonists including polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) were determined by instruments. The bioassay-derived TCDD equivalents (TEQ(bio)) and the chemical-calculated TCDD equivalents (TEQ(cal)) were then compared, and mass balance analysis was conducted to identify the contributors of the observed response. Raw soil extracts from all locations induced significant AhR activities, where the TEQbio ranged from 5.3 to 210 pg/g dry weight soil (pg/g dw). The total concentrations of 17 PCDD/Fs, 36 PCBs and 16 PAHs varied from 210 to 850 pg/g dw, 11 to 100 ng/g dw, and 330 to 20,000 ng/g dw, respectively. Profile characterization of the target analytes revealed that there were similar sources originating from the crude dismantling of electric power equipments and the open burning of e-waste. There was a significant relationship between TEQ(cal) and TEQ(bio) (r=0.99, p < 0.05). Based on the mass balance analysis, PCDD/Fs, PCBs and PAHs could account for the observed AhR responses in vitro elicited by soil extracts, though their respective contributions varied depending on sample location. In this study, the combination of chemical analysis and bioanalytical measurements proved valuable for screening, identifying and prioritizing the causative agents within complex environmental matrices. (C) 2008 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000262218500008 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21666]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Shen, Chaofeng,Chen, Yingxu,Huang, Shengbiao,et al. Dioxin-like compounds in agricultural soils near e-waste recycling sites from Taizhou area, China: Chemical and bioanalytical characterization[J]. ENVIRONMENT INTERNATIONAL,2009,35(1):50-55. |
| APA | Shen, Chaofeng.,Chen, Yingxu.,Huang, Shengbiao.,Wang, Zijian.,Yu, Chunna.,...&Lin, Qi.(2009).Dioxin-like compounds in agricultural soils near e-waste recycling sites from Taizhou area, China: Chemical and bioanalytical characterization.ENVIRONMENT INTERNATIONAL,35(1),50-55. |
| MLA | Shen, Chaofeng,et al."Dioxin-like compounds in agricultural soils near e-waste recycling sites from Taizhou area, China: Chemical and bioanalytical characterization".ENVIRONMENT INTERNATIONAL 35.1(2009):50-55. |
入库方式： OAI收割
来源：生态环境研究中心
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