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首页> 外文期刊>Environmental Science & Technology >Toxicity of a Quinaldine-Based Liquid Organic Hydrogen Carrier (LOHC) System toward Soil Organisms Arthrobacter globiformis and Folsomia Candida
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Toxicity of a Quinaldine-Based Liquid Organic Hydrogen Carrier (LOHC) System toward Soil Organisms Arthrobacter globiformis and Folsomia Candida

机译：奎纳丁为基础的液态有机氢载体（LOHC）系统对土壤生物的毒性，球形节杆菌和念珠菌

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src="http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2018/esthag.2018.52.issue-1/acs.est.7b04434/20171226/images/medium/es-2017-04434a_0004.gif">The study aims to establish a preliminary environmental assessment of a quinaldine-based LOHC system composed of hydrogen-lean, partially hydrogenated, and fully hydrogenated forms. We examined their toxicity toward the soil bacteria Arthrobacter globiformis and the Collembola Folsomia candida in two exposure scenarios, with and without soil, to address differences in the bioavailability of the compounds. In both scenarios, no or only slight toxicity toward soil bacteria was observed at the highest test concentration (EC50 > 3397 μmol L–1 and >4892 μmol kg–1 dry weight soil). The effects of the three quinaldines on F. candida in soil were similar, with EC50 values ranging from 2119 to 2559 μmol kg–1 dry weight soil based on nominal concentrations. Additionally, corrected pore-water-concentration-based EC50 values were calculated by equilibrium partitioning using soil/pore-water distribution coefficients. The tests without soil (simulating pore-water exposure) revealed higher toxicity, with LC50 values between 78.3 and 161.6 μmol L–1 and deformation of the protective cuticle. These results assign the compounds to the category “harmful to soil organisms”. Potential risks toward the soil environment of the test compounds are discussed on the basis of predicted no-effect concentrations.
机译：src =“ http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2018/esthag.2018.52.issue-1/acs.est.7b04434/20171226/images/medium /es-2017-04434a_0004.gif“>该研究旨在建立一个基于奎纳丁的LOHC系统的初步环境评估，该系统由贫氢，部分氢化和完全氢化的形式组成。我们研究了在有和没有土壤的两种暴露情况下，它们对土壤细菌 globiformis 和Collembola Folsomia candida 的毒性，以解决化合物生物利用度的差异。在这两种情况下，在最高测试浓度下（EC 50 和> 4892μmolkg –1 干重土壤）。三种喹诺酮类药物对 F的影响。土壤中的假丝酵母相似，根据标称浓度，EC 50 值在2119至2559μmolkg –1 干重土壤中。另外，利用土壤/孔隙水的分配系数，通过平衡分配，计算出基于孔隙水浓度的修正EC 50 值。没有土壤的试验（模拟孔隙水暴露）显示出更高的毒性，LC 50 值在78.3和161.6μmolL –1 之间，并且保护角质层变形。这些结果将这些化合物归为“对土壤生物有害”类别。根据预测的无效浓度，讨论了测试化合物对土壤环境的潜在风险。

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  • 来源
    《Environmental Science & Technology》 |2018年第1期|258-265|共8页
  • 作者

    Ya-Qi Zhang; Marta Markiewicz; Juliane Filser; Stefan Stolte;

  • 作者单位

    UFT—Centre for Environmental Research and Sustainable Technology, Department Sustainable Chemistry, University of Bremen, Leobener Straße, D-28359 Bremen, Germany;

    UFT—Centre for Environmental Research and Sustainable Technology, Department Sustainable Chemistry, University of Bremen, Leobener Straße, D-28359 Bremen, Germany;

    UFT—Centre for Environmental Research and Sustainable Technology, Department General and Theoretical Ecology, Faculty 2 (Biology/Chemistry), University of Bremen, Leobener Straße, D-28359 Bremen, Germany;

    UFT—Centre for Environmental Research and Sustainable Technology, Department Sustainable Chemistry, University of Bremen, Leobener Straße, D-28359 Bremen, Germany,Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, ul. Wita Stwosza 63, 80-308 Gdańsk, Poland;

  • 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);
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