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What is Soil Guideline Values mean?
Soil Guideline Values (SGVs) are figures which are used in non-statutory technical guidance for assessors carrying out risk assessments to determine whether land is considered ‘contaminated’ under United Kingdom law, that is “land which appears to… be in such a condition, by reason of substances in, on or under the land, that (a) significant harm is being caused or there is a significant possibility of such harm being caused…”
This guidance stipulates three stages in such risk assessments:
Preliminary qualitative assessment including development of conceptual site modelGeneric Quantitative Risk Assessment (GQRA)Detailed Quantitative Risk Assessment (DQRA)Soil Guideline Values are used in the second stage, GQRA, to determine whether harm caused by long-term exposure to a given soil concentration of chemicals may present an unacceptable risk to human health in some generic land-use scenario. The SGVs are therefore conservative estimates for a given scenario. Exceedance of a SGV does not confirm that there is a ‘significant possibility of significant harm’, merely that the possibility exists and therefore more detailed, site-specific investigation of contaminants present, pathways and receptors is required.
referencePosted on 30 Apr 2022, this text provides information on Miscellaneous in Governmental related to Governmental. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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