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Occurrence and ecological risk assessment of organic micropollutants in the lower reaches of the Yangtze River, China: A case study of water diversion

机译:长江下游地区有机微量污染物的发生及其生态风险评估-以引水为例

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摘要

Water diversion has been increasingly applied to improve water quality in many water bodies. However, little is known regarding pollution by organic micropollutants (OMPs) in water diversion projects, especially at the supplier, and this pollution may threaten the quality of transferred water. In the present study, a total of 110 OMPs belonging to seven classes were investigated in water and sediment collected from a supplier of the Yangtze River within four water diversion projects. A total of 69 and 58 target OMPs were detected in water and sediment, respectively, at total concentrations reaching 1041.78 ng/L. and 5942.24 ng/g dry weight (dw). Polycyclic aromatic hydrocarbons (PAHs) and pharmaceuticals were the predominant pollutants identified. When preliminarily compared with the pollution in the receiving water, the Yangtze River generally exhibited mild OMPs pollution and good water quality parameters, implying a clean water source in the water diversion project. However, in Zongyang and Fenghuangjing, PAHs pollution was more abundant than that in the corresponding receiving water in Chaohu Lake. Ammonia nitrogen pollution in the Wangyu River was comparable to that in Taihu Lake. These findings imply that water diversion may threaten receiving waters in some cases. In addition, the risks of all detected pollutants in both water and sediment were assessed. PAHs in water, especially phenanthrene and high -molecular -weight PAHs, posed high risks to invertebrates, followed by the risks to fish and algae. Pharmaceuticals, such as antibiotics and antidepressants, may also pose risks to algae and fish at a number of locations. To the best of our knowledge, this report is the first to describe OMPs pollution in water diversion projects, and the results provide a new perspective regarding the security of water diversion projects. (C) 2018 Elsevier Ltd. All rights reserved.
机译:调水已越来越多地用于改善许多水体的水质。但是,对于调水项目中的有机微量污染物(OMP)的污染知之甚少,尤其是在供应商那里,这种污染可能会威胁到调水的质量。在本研究中,在四个引水工程中,从长江供应商收集的水和沉积物中调查了总共七个属于七类的110 OMPs。在水和沉积物中分别检测到69和58种目标OMP,总浓度达到1041.78 ng / L。和5942.24 ng / g干重(dw)。多环芳烃(PAHs)和药物是确定的主要污染物。初步比较接收水的污染情况,长江总体上呈现出较轻的OMPs污染和良好的水质参数,这意味着在引水工程中有干净的水源。但是,在宗阳和凤凰井,多环芳烃的污染比巢湖相应的受污染水多。望屿河氨氮污染与太湖氨氮污染相当。这些发现表明,在某些情况下,引水可能威胁到接收水。此外,评估了在水和沉积物中所有检测到的污染物的风险。水中的多环芳烃,尤其是菲和高分子量多环芳烃对无脊椎动物构成高风险,其次对鱼类和藻类构成高风险。诸如抗生素和抗抑郁药之类的药物也可能在许多地方给藻类和鱼类带来风险。据我们所知,本报告是第一个描述引水工程中OMPs污染的报告,其结果为引水工程的安全性提供了新的视角。 (C)2018 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Environmental Pollution》 |2018年第8期|223-232|共10页
  • 作者单位

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

    Hohai Univ, Coll Environm, Key Lab Integrated Regulat & Resource Dev Shallow, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Micropollutant; Water diversion; Yangtze River; Water security;

    机译:微污染物;调水;长江;水安全;
  • 入库时间 2022-08-17 13:25:54

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