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首页> 外文期刊>Environmental toxicology and chemistry >TERRESTRIAL ECOTOXICITY OF SHORT ALIPHATIC PROTIC IONIC LIQUIDS
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TERRESTRIAL ECOTOXICITY OF SHORT ALIPHATIC PROTIC IONIC LIQUIDS

机译:短脂族质子离子液体的陆地生态毒性

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摘要

A study of the ecotoxicity of different short aliphatic protic ionic liquids (PILs) on terrestrial organisms was conducted. Tests performed within the present study include those assessing the effects of PILs on soil microbial functions (carbon and nitrogen mineralization) and terrestrial plants. The results show that the nominal lowest-observed-adverse-effect concentration (LOAEC) values were 5,000 mg/kg (dry soil) for the plant test in two species (Loliumperenne, Allium cepa), 1,000 mg/kg (dry soil) for the plant test in one species (Raphanus sativus), and 10,000 mg/kg (dry soil) for carbon and nitrogen microbial transformation tests (all concentrations are nominal). Most of the median effective concentration values (EC50) were above 1,000 mg/kg (dry soil). Based on the obtained results, these compounds can be described as nontoxic for soil microbiota and the analyzed plants, and potentially biodegradable in soils, as can be deduced from the respirometric experiment. The toxicity rises with the increase of complexity of the PILs molecule (branch and length of aliphatic chain) among the three PILs analyzed.
机译:研究了不同的短脂族质子离子液体(PIL)对陆地生物的生态毒性。在本研究中进行的测试包括评估PIL对土壤微生物功能(碳和氮矿化)和陆生植物的影响的测试。结果表明,两种植物(Loliumperenne,葱属)的植物试验的名义最低观察到的不利影响浓度(LOAEC)值为5,000 mg / kg(干土),对于两种物种的植物试验,名义最低观察到的不利影响浓度(LOAEC)值为1,000 mg / kg(干土)。在一个物种(Raphanus sativus)中进行了植物测试,并进行了10,000 mg / kg(干燥土壤)的碳和氮微生物转化测试(所有浓度均为标称值)。大多数中值有效浓度值(EC50)高于1,000 mg / kg(干土)。根据获得的结果,这些化合物可被描述为对土壤微生物和被分析植物无毒,并可能在土壤中生物降解,这可以从呼吸测定实验中推导出来。在三种分析的PIL中,毒性随PIL分子复杂性(脂肪链的分支和长度)的增加而增加。

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2011年第12期|p.2802-2809|共8页
  • 作者单位

    Laboratori d'Edafologia, Universitat de Barcelona, Barcelona, Spain;

    Laboratori d'Edafologia, Universitat de Barcelona, Barcelona, Spain;

    Laboratori d'Edafologia, Universitat de Barcelona, Barcelona, Spain;

    Laboratori d'Edafologia, Universitat de Barcelona, Barcelona, Spain;

    Departamento de Ingenieria Quimica, Universidad de Santiago de Compostela, Santiago de Compostela, Spain,Departamento de Engenharia Quimica, Universidade Federal da Bahia, Salvador, Brazil;

    Laboratori d'Edafologia, Universitat de Barcelona, Barcelona, Spain;

  • 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

    protic ionic liquids; terrestrial ecotoxicity; biodegradability;

    机译:质子离子液体;陆地生态毒性;生物降解性;

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