荷兰土壤和地下水标准
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Dutch Standards are environmental pollutant reference values used in environmental remediation, investigation and cleanup.[1][2]
The reference values for soil are adjusted for the organic matter(humus) content and soil fraction< 0.2 µm (lutum - Latin, meaning "mud" or "clay"). The values below are calculated for a 'Standard Soil' with 10% organic matter and 25% lutum.
The reference values for groundwater depend on the depth of the sample, the values below are for 'shallow' groundwater, 0 - 10 m depth.
A case of environmental contamination is defined as 'serious' if >25 m³ soil or >100 m³ groundwater is contaminated above the intervention value.