Policy document
November 23rd 2004

Test No. 312: Leaching in Soil Columns

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OECD
OECD
https://www.oecd.org Flag of igo IGO

The Organisation for Economic Co-operation and Development is an intergovernmental organization with 38 member countries, founded in 1961 to stimulate economic progress and world trade. It is a forum the members of which are countries describing themselves as committed to democracy and the market economy, providing a platform to compare policy experiences, seek answers to common problems, identify good practices and coordinate domestic and international policies of its members. The majority of OECD members are high-income economies with a very high Human Development Index (HDI) and are regarded as developed countries.
The method described in this Test Guideline is based on soil column chromatography in disturbed soil. Two types of experiments are performed to determine (i) the leaching potential of the test substance, and (ii) the leaching potential of transformation products in soils under controlled laboratory conditions. At least duplicate leaching columns are packed with untreated, air-dried and sieved soil (< 2 mm) up to a height of approximately 30 cm. Afterwards they are saturated and equilibrated with an “artificial rain” solution and allowed to drain. Then the surface of each soil column is treated with the test substance (non-volatile in water and soil) and/or with aged residues of the test substance. Artificial rain is applied to the soil columns and the leachate is collected. After the leaching process the soil is removed from the columns and is sectioned into an appropriate number of segments depending on the information required from the study. A reference substance (atrazine or monuron) should be u...

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Identifiers

Overton ID
oecddiscovery-9ba90574db3075e14ffbb44829ab81a9
doi
10.1787/9789264070561-en

Topics in this document

Soil Soil texture Isotopic labeling Chemical substance Detection limit Leachate Earth sciences Materials Chemistry Physical sciences Solubility Chromatography Manufacturing Water Nature Solvent Purified water Loam Soil horizon Solution (chemistry) Clay Partition coefficient Chemical substances

Related SDGs

SDG 12: Responsible Consumption and Production
SDG 12: Responsible Consumption and Production

Target 12.4

Achieve the environmentally sound management of chemicals and all wastes throughout their life cycle, in accordance with agreed international frameworks, and significantly reduce their release to air, water and soil in order to minimize their adverse impacts on human health and the environment

Related COFOG Divisions

5: Environmental Protection 5.3: Pollution Abatement

Citations

Cited by 12 other policy documents (11 of them are from other policy sources)