Re-evaluation of human-toxicological maximum permissible risk levels
R.M.C. Theelen A.J. Baars · Rivm (National Institute for Public Health and the Environment) · 2001
Soil Intervention Values are generic soil quality standards based on potential risks to humans and ecosystems. They are used to determine whether or not contaminated soils meet the criteria for “serious soil contamination” of the Dutch Soil Protection Act. Regarding the potential risks to humans, MPR values quantifying the human-toxicological risk limits (i.e., tolerable daily intake, tolerable concentration in air, oral cancer risk and/or inhalation cancer risk) for some 50 chemicals and chemical classes were derived in the period 1991-1993. These MPRs have now been updated. Together the compounds comprise 12 metals (including cadmium, lead and mercury), 10 aromatic compounds (including the polycyclic aromatics), 13 chlorinated hydrocarbons (including dioxins and polychlorinated biphenyls), 6 pesticides (including DDT and the -drins) and 7 other compounds including cyanides and total petroleum hydrocarbons. For each compound or compound class a toxicity profile has been compiled, consisting of a concise summary of the available toxicity data, information on background exposure, and a survey of existing limit values derived by other organisations. Each profile leads to an updated MPR for the compound (or class of compounds) in question.