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; and -providing data to support Canada’s air quality health indices.

Emissions data is available for the following 17 air pollutants:

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) -Hexachlorobenzene (HCB)

This data record breaks down the historical trends of reported pollutants by individual substances. To perform more customized selections of APEI data, please visit our website to use our interactive query tool.

The Air Pollutant Emission Inventory is compiled from many different data sources. Emissions data reported by individual facilities to Environment and Climate Change Canada’s National Pollutant Release Inventory are supplemented with well documented, science-based estimation tools to quantify total emissions. Together these data sources provide a comprehensive overview of pollutant emissions across Canada.

Supplemental Information

Air Pollutants Inventory Main Page:

https://www.canada.ca/en/environment-climate-change/services/pollutants/air-emissions-inventory-overview.html

Air Pollutants Inventory Interactive Query Tool:

https://pollution-waste.canada.ca/air-emission-inventory/

Canada's Black Carbon Emission Inventory:

https://www.canada.ca/en/environment-climate-change/services/pollutants/black-carbon-emissions-inventory.html

Data and Resources

Field	Value
Groups	AmeriGEOSS National Provider North America
Tags	AmeriGEO AmeriGEOSS CKAN Canada GEO GEOSS National North America
author_email	open-ouvert@tbs-sct.gc.ca
isopen	False
license_id	ca-ogl-lgo
license_title	ca-ogl-lgo
maintainer_email	open-ouvert@tbs-sct.gc.ca
metadata_created	2025-11-25T07:39:25.955225
metadata_modified	2025-11-25T07:39:25.955229
notes	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; and -providing data to support Canada’s air quality health indices. Emissions data is available for the following 17 air pollutants: 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) -Hexachlorobenzene (HCB) This data record breaks down the historical trends of reported pollutants by individual substances. To perform more customized selections of APEI data, please visit our website to use our interactive query tool. The Air Pollutant Emission Inventory is compiled from many different data sources. Emissions data reported by individual facilities to Environment and Climate Change Canada’s National Pollutant Release Inventory are supplemented with well documented, science-based estimation tools to quantify total emissions. Together these data sources provide a comprehensive overview of pollutant emissions across Canada. Contact us: ec.iepa-apei.ec@canada.ca Supplemental Information Air Pollutants Inventory Main Page: https://www.canada.ca/en/environment-climate-change/services/pollutants/air-emissions-inventory-overview.html Air Pollutants Inventory Interactive Query Tool: https://pollution-waste.canada.ca/air-emission-inventory/ Canada's Black Carbon Emission Inventory: https://www.canada.ca/en/environment-climate-change/services/pollutants/black-carbon-emissions-inventory.html
num_resources	4
num_tags	8
title	Canada's Air Pollutant Emissions Inventory
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