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The sediment-water diffusion and risk assessment of PAHs in different types of drinking water sources in the Yangtze River Delta, China

机译:中国长江三角洲不同类型饮用水源沉积水分扩散及风险评价

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摘要

PAHs are hazardous and ubiquitous pollutants in the aquatic environment. Understanding their flux, diffusion and environmental risk is very important for the sustainable development of drinking water sources. Thus, PAHs residues were measured with isotope dilution mass spectrometry in sediments, and overlying water of different types of drinking water sources such as rivers, lake, and river networks of Yangtze River Delta. These water bodies are important sources of drinking water, fish, and ecological habitats of various species. The results showed that the sigma PAHs were ranged from 4.25 to 407 ng/L in water, ranked in order as follows: rivers river networks lake. sigma PAHs were ranged from 149 to 8023 ng/g dry weight in sediment, ranked in order as follows: river networks lake rivers. Low molecular weight PAHs were dominant compounds in water, while high molecular weight PAHs were dominant compounds in sediment. The ffSW values revealed a net resuspension of naphthalene (Nap), acenaphthylene (Dih), fluorine (Flu), phenanthrene (Phe), anthracene (Ant), and benzo[a] pyrene (BaP) from sediment to water in all kind of water sources; indeno[1,2,3-c,d]pyrene (Ind), benzo[b]fluoranthene (BbF), and benzo[k]fluoranthene (BkF) were transferred from water to sediment in Qiantang river but these compounds were at sediment-water equilibrium in Yangtze River, Huangpu River, Jiaxing River Network and Taihu Lake. Acenaphthene (Ace), fluoranthene(Fla), benzo[a]anthracene (BaA), chrysene (Chr), benzo[g,h,i] anthrancene (BPY) were at sediment-water equilibrium at Qiangtang River. PAHs were mainly derived from a mixed source of combustion and petroleum through source resolution. According to quality guidelines, PAHs in sediment posed a potential ecological threat at one site, however, drinking water did not pose any carcinogenic and non-carcinogenic risks.
机译:PAHS在水生环境中是危险和无处不在的污染物。了解他们的助焊剂,扩散和环境风险对于饮用水来源的可持续发展非常重要。因此,在沉积物中的同位素稀释质谱法测量PAHS残基,以及不同类型的饮用水来源的覆盖水,如河流,湖泊和长江三角洲的河流网络。这些水体是各种物种的饮用水,鱼类和生态栖息地的重要来源。结果表明,Sigma Pahs在水中的4.25至407 ng / L范围为4.25至407 ng / L,按照以下排名:Rivers&河网络&湖。 Sigma Pahs在沉积物中的149%至8023 ng / g干重,排名为下列:River Networks≫湖&河流。低分子量PAH是水中的主要化合物,而高分子量PAH在沉淀物中是主要化合物。 FFSW值显示萘(NAP),氟萘(DIH),氟(流感),亚苯(PHE),蒽(PHE),苯并[a]芘(BAP)的净重悬浮在各种各样的水中水源; Indeno [1,2,3-C,D]芘(Ind),苯并[b]氟(Bbf)和苯并[K]氟(BKF)从水塘河中的水转移到沉积物中,但这些化合物在沉积物处长江,黄浦江,嘉兴河网和太湖水平均衡。对羌族河流沉积水平衡,苯并(FLA),氟苯(FLA),苯并[A]蒽(BaA),苯并[G,H,I]蒽醌(BPY)是在羌塘河的沉积物水平。 PAHS主要通过源分辨率来源于燃烧和石油的混合来源。根据质量指南,沉积物的PAHS在一个网站上提出了潜在的生态威胁,然而,饮用水没有造成任何致癌和非致癌风险。

著录项

  • 来源
    《Journal of Cleaner Production》 |2021年第1期|127456.1-127456.8|共8页
  • 作者单位

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China|Chinese Acad Agr Sci Inst Environm & Sustainable Dev Agr Beijing Peoples R China;

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China;

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China;

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China;

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China;

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China;

    Chinese Acad Agr Sci Inst Environm & Sustainable Dev Agr Beijing Peoples R China;

    Chinese Res Inst Environm Sci Natl Engn Lab Lake Pollut Control & Ecol Restorat State Environm Protect Key Lab Drinking Water Sou Beijing 100012 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PAHs; Sources; Flux; Drinking water; Sediment;

    机译:PAHS;来源;助焊剂;饮用水;沉积物;

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