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首页> 外文期刊>The Science of the Total Environment >Spatial distribution, seasonal variation and risks of legacy and emerging per- and polyfluoroalkyl substances in urban surface water in Beijing, China
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Spatial distribution, seasonal variation and risks of legacy and emerging per- and polyfluoroalkyl substances in urban surface water in Beijing, China

机译：中国北京城市地表水中的空间分布，季节性变化和遗产和新兴的风险和多氟烷基物质

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摘要

In the current study, we investigated the occurrence, spatial distribution and seasonal variation of per- and polyfluoroalkyl substances (PFASs), including one group of emerging PFASs, the chlorinated polyfluoroalkyl ether sulfonic acids (Cl-PFESAs), in urban surface water (river and lake) samples from October 2013 to September 2014 (except during the frozen period) in Beijing, China. Perfluorobutanoic acid (PFBA) and perfluoropentanoic acid (PFPeA) were the dominant compounds, with average concentrations of 12.79 and 9.90 ng/L, respectively. For Cl-PFESAs, only C8 Cl-PFESA could be detected, and its concentration ranged from MLQ to 6.93 ng/L. Higher concentrations of Sigma PFASs were observed in the northern and eastern regions of Beijing. The highest and lowest levels of Sigma PFASs were found in summer and winter, respectively. For C8 Cl-PFESA, there were no significant differences in the concentrations among different sampling sites. Additionally, risk assessments indicated that the studied PFASs at present levels might pose a low risk to aquatic organisms (green algae, Daphnia sp. and fish). However, further studies should be conducted on the combined risk from PFASs or the risk to other sensitive species in aquatic environments. (C) 2019 Elsevier B.V. All rights reserved.
机译：在目前的研究中，我们调查了每氟氟烷基物质（PFASS）的发生，空间分布和季节性变化，包括一组新兴PFASS，城市地表水（河流）中的氯化聚氟烷基醚磺酸（CL-PFESAS）和湖泊）在2013年10月至2014年9月（冻结期间）的样品在北京，中国。全氟丁酸（PFBA）和全氟化酸（PFPEA）是主要化合物，平均浓度为12.79和9.90 ng / L.对于Cl-PFesas，只能检测到C8 CL-PFESA，其浓度范围为

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  • 来源
    《The Science of the Total Environment》 |2019年第jul10期|177-183|共7页
  • 作者

    Wang Yuan; Shi Yali; Cai Yaqi;

  • 作者单位

    Univ Chinese Acad Sci State Key Lab Environm Chem & Ecotoxicol Ecoenvironm Sci Res Ctr Beijing 100085 Peoples R China|Hebei Univ Sci & Technol Coll Environm Sci & Engn Shijiazhuang 050018 Hebei Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Univ Chinese Acad Sci State Key Lab Environm Chem & Ecotoxicol Ecoenvironm Sci Res Ctr Beijing 100085 Peoples R China;

    Univ Chinese Acad Sci State Key Lab Environm Chem & Ecotoxicol Ecoenvironm Sci Res Ctr Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China|Jianghan Univ Inst Environm & Hlth Wuhan 430056 Hubei Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Cl-PFESAs; Occurrence; Pollution characteristics; Environmental risk; Surface water;

    机译：CL-PFESAS;发生;污染特征;环境风险;地表水;

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