Ambient Air Quality Criteria for Ontario, Canada

Ambient Air Quality Criteria (AAQC) set by the Ontario Ministry of the Environment, Conservation and Parks. AAQCs represent concentrations of contaminants in air that are protective against adverse health and environmental effects. The data is used to assess general air quality from all sources, last updated on 2026-03-25.

Use Cases

• Assess general ambient air quality based on contaminant concentration criteria mentioned in the description
• Support environmental assessments using non-regulatory protective standards for contaminants
• Analyze community air quality by comparing monitoring data against established AAQCs
• Report on provincial air quality trends using the criteria for annual reporting

Strengths

• Data is provided by the authoritative Government of Ontario.
• Criteria are explicitly defined for protecting health and the environment.
• Available in both HTML and CSV formats for accessibility.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

Government of Ontario | Gouvernement de l'Ontario

Collection Method

Set by the Ministry of the Environment, Conservation and Parks.

Freshness

Last updated 2026-03-25 12:01:13.828009; freshness should be verified.

Geography

Ontario, Canada