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Human health guidelines/check values

Guideline Derivation Canadian soil quality guidelines are derived for different land uses using different receptors and exposure scenarios for each land use (see Table 1). Table 3 (next page) provides the soil quality guidelines and check values for all uses. The scientific criteria document for methanol (CCME 2017) provides detailed derivations for methanol soil quality guidelines. Soil Quality Guidelines for Environmental Health CCME bases the environmental soil quality guidelines on soil contact data from toxicity studies on plants and invertebrates in soil, as well as considering the protection of aquatic life. In the case of agricultural land use, soil and food ingestion toxicity data for livestock are also included. To provide a broader scope of protection, CCME calculates a nutrient and energy cycling check, if sufficient data are available, and an off-site migration check for commercial and industrial land uses. Canadian Soil Quality Guidelines for the Protection of Environmental and Human Health Methanol 4 CCME calculated the methanol soil contact guideline from a species sensitivity distribution of plant and invertebrate toxicity data evaluated at the 25th percentile effect level. CCME used the 25th percentile of this distribution as the soil contact guideline for agricultural and residential/parkland uses and the 50th percentile for commercial and industrial land uses. No surface water guideline protective of freshwater aquatic life currently exists for methanol, and accordingly, CCME developed a guideline based on available toxicity data (CCME 2017). Data were insufficient to calculate a water quality guideline for the protection of marine aquatic life.