Air pollutants

Airborne, impact, criteria air contaminants, heavy metals, toxics, reaction, sources.

Services and information

Criteria air contaminants

Pollutants, air issues, ozone, secondary particulate, chemical reactions, fossil fuels, emissions.

Heavy metals

Sources, fine particles, persistent organic pollutants, hazardous air pollutants, micronutrients.

Toxic pollutants

Air quality issues, list of all air related toxics.

Tracking pollution with the National Pollutant Release Inventory

The National Pollutant Release Inventory (NPRI) is Canada's legislated, publicly-accessible inventory of pollutant releases and transfers, and a key resource for understanding, tracking and taking action on pollution.


Overview of airborne pollutants that contribute to our air quality.

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