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首页> 外文期刊>Environmental toxicology and chemistry >INFLUENCE OF MOISTURE ON THE AVAILABILITY AND PERSISTENCE OF CLOTRIMAZOLE AND FLUCONAZOLE IN SLUDGE-AMENDED SOIL
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INFLUENCE OF MOISTURE ON THE AVAILABILITY AND PERSISTENCE OF CLOTRIMAZOLE AND FLUCONAZOLE IN SLUDGE-AMENDED SOIL

机译：水分对污泥改良土壤中克霉唑和氟康唑的有效性和持久性的影响

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摘要

Applying sewage sludge to soil is a common practice in many parts of the world. Thus, pharmaceutical compounds, such as azoles, can be released into the environment after sludge is applied to soil. To understand the fate of clotrimazole and fluconazole (Pharmaceuticals used as antifungals in humans) in soil after its amendment with sludge, a reliable and sensitive method has been developed to determine these compounds in the solid and aqueous phases of soil. Desorption of clotrimazole from soil amended with sludge was negligible, whereas a rapid desorption of fluconazole was observed. Dissipation rates of these azoles were determined in amended soil incubated at 25℃ with moisture contents ranging from 4.5 to 20%. Clotrimazole was more persistent than fluconazole in dry soil, whereas the contrary occurred in wet soil. Partitioning soil:soil solution of these azoles varied with time and moisture contents. Clotrimazole was found in soil with negligible amounts in soil solution, whereas fluconazole was approximately partitioned 50:50 during the assay time (60 d) at any soil moisture content. Occasional rainfall coupled with a relatively low binding soil capacity can result in the contamination of surface and groundwaters by fluconazole, whereas clotrimazole will remain in the soil. Environ. Toxicol. Chem.
机译：在世界许多地方，将污水污泥施于土壤是一种普遍的做法。因此，污泥施用于土壤后，诸如唑类的药物化合物可以释放到环境中。为了了解在污泥中添加了克霉唑和氟康唑（人类用作抗真菌药物）在土壤中的命运，已开发出一种可靠而灵敏的方法来测定土壤固相和水相中的这些化合物。克霉唑从污泥改良土壤中的解吸作用可以忽略不计，而氟康唑的解吸作用却很快。测定这些唑类物质在25℃温育的改良土壤中的耗散率，水分含量为4.5％至20％。在干燥土壤中，克霉唑比氟康唑更持久，而在潮湿土壤中则相反。这些唑类在土壤：土壤溶液中的分配随时间和水分含量的变化而变化。在土壤中发现的克霉唑含量几乎可以忽略不计，而氟康唑在任何土壤水分含量下的测定时间（60 d）中大约以50:50分配。偶尔的降雨加上相对较低的结合土壤容量可能导致氟康唑污染地表和地下水，而克霉唑则残留在土壤中。环境。毒药。化学

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  • 来源
    《Environmental toxicology and chemistry》 |2012年第3期|p.501-507|共7页
  • 作者

    Ana I. Garcia-Valcarcel; Jose L. Tadeo;

  • 作者单位

    Department of Environment, National Institute of Agricultural and Food Research and Technology, Madrid, Spain;

    Department of Environment, National Institute of Agricultural and Food Research and Technology, Madrid, 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

    clotrimazole; fluconazole; persistence; availability; sludge;

    机译：克霉唑氟康唑坚持不懈可用性;污泥;

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