Air Contaminants Benchmarks List

Standards, guidelines and screening levels for assessing point of impingement concentrations of air contaminants Get information on the ministry’s standards, guideline values and screening levels that are used to assess point of impingement concentrations of contaminants released into the air. These are used primarily to prepare an Emission Summary and Dispersion Modelling (ESDM) report. This dataset is draft and in development. Files (slice {"file": url}): - Air Contaminants Benchmarks List (csv): https://files.ontario.ca/moe_mapping/downloads/1Air/Air_Contaminants_Benchmarks_List/Air_Contaminants_Benchmarks_List_2026.csv - Table 4 - Upper Risk Thresholds (csv): https://files.ontario.ca/moe_mapping/downloads/1Air/Air_Contaminants_Benchmarks_List/Table4_ACB_Upper_Risk_Thresholds_2026a.csv - Table 5 - Removed B2 Values (csv): https://files.ontario.ca/moe_mapping/downloads/1Air/Air_Contaminants_Benchmarks_List/Table5_ACB_Removed_B2_Values_2026a.csv - Table 6 - Removed B1 Values (csv): https://files.ontario.ca/moe_mapping/downloads/1Air/Air_Contaminants_Benchmarks_List/Table6_ACB_Removed_B1_Values_2026a.csv - Air Contaminants Benchmarks (ACB) List (csv): https://files.ontario.ca/moe_mapping/downloads/1Air/Air_Contaminants_Benchmarks_List/Air_Contaminants_Benchmarks_List_2026a.csv

Cite as: Government of Ontario | Gouvernement de l'Ontario. Air Contaminants Benchmarks List. https://open.canada.ca/data/en/dataset/1ab20633-7c20-4004-b828-83ea25a8b3e9