• Review of the Extraction Methods of Soil Extracts, Soil Elutriates, and Soil Suspensions for Ecotoxicity Assessments
  • Nam, Sun-Hwa;An, Youn-Joo;
  • Department of Environmental Health Science, Konkuk University;Department of Environmental Health Science, Konkuk University;
  • 생태독성평가를 위한 Soil Extracts, Soil Elutriates, Soil Suspensions 추출기법
  • 남선화;안윤주;
  • 건국대학교 보건환경과학과;건국대학교 보건환경과학과;
Abstract
Soil pollution has been recognized as a serious problem because it causes groundwater pollution through medium contacts. Although concentration of individual chemical could be more easily measured by physico-chemical analysis, it is not easy to consider the bioavailability of edaphic receptors living in soil or groundwater. To measure the toxicity of soil, the soil extracts (soil elutriates or soil suspensions in the other words) are often used due to the difficulties of extracting soil pore water. In this study, we reviewed 15 toxicity test methods found in literature to analyze the detail of each extraction method and to recommend the most frequently used extraction methods. The identified most commonly used extraction methods are as following: The 1 : 4 soil:water ratio, 24 hours shaking time, room temperature, dark, and separation of supernatant using a $0.45{\mu}m$ pore size filter.

Keywords: Soil elutriates;Soil extracts;Soil suspensions;Ecotoxicity assessment;

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This Article

  • 2014; 19(3): 15-24

    Published on Jun 30, 2014

  • 10.7857/JSGE.2014.19.3.015
  • Received on Oct 7, 2013
  • Revised on Mar 26, 2014
  • Accepted on Mar 26, 2014