Canada's Air Pollutant Emissions Inventory

The Air Pollutant Emission Inventory (APEI) is an annual report of air pollutant emissions across Canada published by Environment and Climate Change Canada. The report details the release of air pollutants from all known of sources since 1990. The APEI serves many purposes, including: supporting the development of and tracking progress on air quality management strategies, policies and regulations fulfilling Canada’s domestic and international reporting obligations informing Canadians about air pollutants emissions providing data to support Canada’s air quality health indices Emissions data is available for the following: Criteria air contaminants (CACs): Total particulate matter (TPM) Particulate matter less than or equal to 10 microns (PM10) Particulate matter less than or equal to 2.5 microns (PM2.5) Sulphur oxides (SOx) Nitrogen oxides (NOx) Volatile organic compounds (VOCs) Carbon monoxide (CO) Ammonia (NH3) Heavy metals: Mercury (Hg) Lead (Pb) Cadmium (Cd) Persistent organic pollutants (POPs): Dioxins and furans (D/F) Four polycyclic aromatic hydrocarbons (PAHs) compounds (Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(k)fluoranthene and Indeno(1,2,3-cd)pyrene)…

Publisher

Environment and Climate Change Canada

Resources

2

Catalogue metadata updated

2026-09-11