Migration mechanism and risk assessment of chlorinated paraffins in highly polluted Ya'Er lake area, China
文献类型：期刊论文
| 作者 | Li, Chang ; Chen, Lufeng; He, Yujian; Liang, Yong; Wang, Yingjun; Li, Feifei; Gao, Wei; Wang, Yawei; Jiang, Guibin
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| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2021-07-15 |
| 卷号 | 281页码:- |
| ISSN号 | 0269-7491 |
| 关键词 | Highly polluted areas Chlorinated paraffins Distribution Migration mechanism Risk assessment |
| 英文摘要 | Chlorinated paraffins (CPs), a type of toxic and persistent organic substances, can persist in environmental media for a long time and have adverse effects on human health. Thus, it is of great importance to investigate the accumulation and environmental behavior of CPs in industrial areas. In this study, farmland soil, water, and sediment core samples from abandoned oxidation ponds used by three chemical plants to treat wastewater over the past 38 years were investigated in detail. Results show that the concentration of CPs in sediments varied significantly with the water flow direction. The oxidation pond closest to a sewage outlet had the highest concentrations of short-chain chlorinated paraffin (SCCPs) and medium-chain chlorinated paraffin (MCCPs), within the ranges of 44.0-6.21 x 10(4) ng/g dw (mean 9.32 x 10(3) ng/g dw) and 143-1.30 x 10(6) ng/g dw (mean 1.22 x 10(5) ng/g dw), respectively. However, in the oxidation pond farthest from the sewage outlet, CP concentrations in sediments were significantly reduced, with Sigma SCCPs and Sigma MCCPs concentrations ranging from N.D.-249 ng/g dw (mean 66.8 ng/g dw) and N.D.-222 ng/g dw (mean 34.0 ng/g dw), respectively. Moreover, MCCP level in the water was below the detection limit, while the concentration of SCCP ranged from 41.0 to 1.53 x 10(3) ng/L (mean 267 ng/L). Finally, a remarkable spatial trend and specific congener distribution were observed in the sediment test results. The horizontal and vertical distributions of the sediments indicate that short-chain (C-10-(11)) and low-chlorinated (Cl-6-(7)) homologs are more likely to migrate deeper or farther away from the pollution source. (C) 2021 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45783]  |
| 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 |
| 作者单位 | 1.Jianghan Univ, Inst Environm & Hlth, Hubei Key Lab Environm & Hlth Effects Persistent, Wuhan 430056, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 4.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chang,Chen, Lufeng,He, Yujian,et al. Migration mechanism and risk assessment of chlorinated paraffins in highly polluted Ya'Er lake area, China[J]. ENVIRONMENTAL POLLUTION,2021,281:-. |
| APA | Li, Chang.,Chen, Lufeng.,He, Yujian.,Liang, Yong.,Wang, Yingjun.,...&Jiang, Guibin.(2021).Migration mechanism and risk assessment of chlorinated paraffins in highly polluted Ya'Er lake area, China.ENVIRONMENTAL POLLUTION,281,-. |
| MLA | Li, Chang,et al."Migration mechanism and risk assessment of chlorinated paraffins in highly polluted Ya'Er lake area, China".ENVIRONMENTAL POLLUTION 281(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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