Ambient Air Quality Criteria

Access the List of Ambient Air Quality Criteria (AAQC) set by the Ministry of the Environment, Conservation and Parks.

An AAQC is not a regulatory value. It is a concentration of a contaminant in air that is protective against adverse effects on health and/or the environment. AAQCs are used to assess general (ambient) air quality resulting from all sources of a contaminant to air. AAQCs are most commonly used in environmental assessments, special studies using ambient air monitoring data, assessment of general air quality in a community and annual reporting on air quality across the province.

Ministry contact: Environment, Conservation and Parks

Additional information

Tags
Source URL/Address
https://www.ontario.ca/page/ontarios-ambient-air-quality-criteria
Last Validated Date
September 21, 2023
Update frequency
As required

Ambient Air Quality Criteria

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    List of Ambient Air Quality Criteria (AAQCs) English [53.4 KiB]

    Last Updated: September 21, 2023

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