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Ecotoxicity of Nitrogen, Sulfur, or Oxygen Heterocycles and Short‐Chained Alkyl Phenols Commonly Detected in Contaminated Groundwater

机译:氮,硫或氧杂环和短链烷基苯酚在受污染的地下水中常见的生态毒性

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摘要

Nitrogen, sulfur, or oxygen heterocyclic aromatic hydrocarbons (NSO-HETs) and short-chained alkyl phenols (SCAPs) are commonly detected in groundwater at contaminated sites and in the surrounding environment. It is now scientific consensus that these chemicals pose a risk to human and ecosystem health. However, toxicity data are comparably fragmentary, and only few studies have addressed the ecotoxicity of NSO-HETs and SCAPs in a systematic and comparative fashion. To overcome this shortcoming, we tested 18 SCAPs, 16 NSO-HETs, as well as the homocyclic hydrocarbons indane and indene in the Microtox (R) assay with Aliivibrio fischeri, the growth inhibition test with Desmodesmus subspicatus, the acute immobilization assay with Daphnia magna, as well as the fish embryo toxicity test with embryos of the zebrafish (Danio rerio). Because of the physicochemical properties of the tested chemicals (limited water solubility, volatility, and sorption to test vessels), actual exposure concentrations in test media and their dissipation over time were analytically quantified by means of gas chromatography with mass spectrometry. Analytically corrected effect levels (median effect and lethal concentrations) ranged from 0.017 to 180 mg L-1, underlining the environmental relevance of some NSO-HETs and SCAPs. Para-substituted phenols showed the overall greatest toxicities in all 4 toxicity tests. We provide, for the first time, a complete high-quality data set in support of better environmental risk assessments of these chemicals. Environ Toxicol Chem 2019;38:1343-1355. (c) 2019 SETAC
机译:氮,硫或氧杂环芳烃(NSO-HET)和短链烷基酚(SCAP)通常在受污染场所和周围环境的地下水中检测到。现在,科学共识认为,这些化学物质会对人类和生态系统健康构成威胁。但是,毒性数据比较零碎,只有很少的研究以系统和比较的方式解决了NSO-HET和SCAP的生态毒性。为了克服这一缺点,我们在Aliivibrio fischeri的Microtox(R)试验,Desmodesmus subspicatus的生长抑制试验,Daphnia magna的急性固定试验中测试了18个SCAP,16个NSO-HET以及同环烃茚满和茚。 ,以及斑马鱼(Danio rerio)胚胎的鱼胚胎毒性测试。由于所测试化学物质的物理化学特性(有限的水溶性,挥发性和对测试容器的吸附),因此通过气相色谱-质谱分析法定量分析了测试介质中的实际暴露浓度及其随时间的消散。经分析校正的作用水平(中位作用和致死浓度)范围为0.017至180 mg L-1,突显了某些NSO-HET和SCAP与环境的相关性。对位取代的苯酚在所有4种毒性试验中均显示出最大的毒性。我们首次提供完整的高质量数据集,以支持对这些化学品进行更好的环境风险评估。 Environ Toxicol Chem 2019; 38:1343-1355。 (c)2019年SETAC

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2019年第6期|1343-1355|共13页
  • 作者单位

    Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK, Canada|Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK, Canada|Univ Saskatchewan, Global Inst Water Secur, Saskatoon, SK, Canada|Univ Saskatchewan, Ctr Hydrol, Saskatoon, SK, Canada;

    Water Technol Ctr, Dept Environm Biotechnol, Karlsruhe, Germany;

    Univ Saskatchewan, Toxicol Ctr, Saskatoon, SK, Canada;

    Rhein Westfal TH Aachen, ABBt Aachen Biol & Biotechnol, Inst Environm Res, Dept Ecosyst Anal, Aachen, Germany;

    Rhein Westfal TH Aachen, ABBt Aachen Biol & Biotechnol, Inst Environm Res, Dept Ecosyst Anal, Aachen, Germany;

    Rhein Westfal TH Aachen, ABBt Aachen Biol & Biotechnol, Inst Environm Res, Dept Ecosyst Anal, Aachen, Germany;

    Water Technol Ctr, Dept Environm Biotechnol, Karlsruhe, Germany;

    Water Technol Ctr, Dept Environm Biotechnol, Karlsruhe, Germany;

    Rhein Westfal TH Aachen, ABBt Aachen Biol & Biotechnol, Inst Environm Res, Dept Ecosyst Anal, Aachen, Germany|Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing, Jiangsu, Peoples R China|Chongqing Univ, Coll Resources & Environm Sci, Chongqing, Peoples R China|Tongji Univ, Key Lab Yangtze Water Environm, Shanghai, 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

    Short-chained alkyl phenol; NSO-heterocyclic hydrocarbon; Hetero-polyaromatic hydrocarbon; Ecotoxicology; Biotest;

    机译:短链烷基苯酚;NSO杂环烃;杂多芳烃;生态毒理学;生物试验;

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