Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China
文献类型：期刊论文
| 作者 | Shi, Yali; Vestergren, Robin; Xu, Lin; Song, Xiaowei; Niu, Xiameng; Zhang, Chunhui; Cai, Yaqi |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2015-11 |
| 卷号 | 206期号:1页码:104-112 |
| 关键词 | Per- and polyfluoroalkyl substances (PFASs) PFOA isomers Source tracking Isomer fractionation |
| 英文摘要 | The spatial trend of perfluoroalkyl substances (PFASs) along Xiaoqing River and its tributaries was studied to characterize isomer profiles and quantify emissions from fluoropolymer (FP) manufacturers in China. Substantially elevated Sigma PFAS concentrations downstream of tributary 4 demonstrated that the emissions from this FP manufacturer dominated total riverine discharges. Isomer profiles of perfluorooctanoic acid (PFOA) in water displayed a stepwise increase in percentage branched PFOA downstream of tributary 3 (14.0%) and 4 (22.7%) reflecting the importance of FP sources. Strong positive correlations between PFOA isomers in water downstream of tributary 4 indicated that isomer profiles were conserved from emission sources to the final reservoir. Riverine discharges of PFOA (23-67 t/yr) were in agreement with theoretical emission calculations from FP production (68 t/yr) whereas large discrepancies between the two methodologies were observed for perfluorobutanoic acid and perfluoropentanoic acid. Collectively, this study fills critical knowledge gaps for understanding ongoing global sources of PFASs. (C) 2015 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000366235700014 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32534]  |
| 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 | Shi, Yali,Vestergren, Robin,Xu, Lin,et al. Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China[J]. ENVIRONMENTAL POLLUTION,2015,206(1):104-112. |
| APA | Shi, Yali.,Vestergren, Robin.,Xu, Lin.,Song, Xiaowei.,Niu, Xiameng.,...&Cai, Yaqi.(2015).Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China.ENVIRONMENTAL POLLUTION,206(1),104-112. |
| MLA | Shi, Yali,et al."Characterizing direct emissions of perfluoroalkyl substances from ongoing fluoropolymer production sources: A spatial trend study of Xiaoqing River, China".ENVIRONMENTAL POLLUTION 206.1(2015):104-112. |
入库方式： OAI收割
来源：生态环境研究中心
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