Air Pollutant Emission Inventory - Online Data Search

Welcome to the Air Pollutant Emission Inventory (APEI) data search. Use this query tool to obtain information on national, provincial and territorial air emission summaries for key air pollutants, heavy metals and persistent organic pollutants from anthropogenic emission sources. Air emissions of these pollutants are available nationally, provincially and territorially from 1990 to present.

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Additional Searches:

To search detailed information on pollutant releases (to air, water and land), disposals and transfers for recycling reported by facilities to the National Pollutant Release Inventory (NPRI), visit the related site: National Pollutant Release Inventory Online Data Search - Facility-reported Data.

To search Canada’s legislated, publicly accessible inventory of facility-reported greenhouse gas data and information, visit the related site: Greenhouse Gas Emissions Reporting Program Data - Facility Data Search.


Data available on this website are current as of December 1, 2015. Ongoing improvements or future corrections may result in periodic updates. As part of the quality assurance process, we conduct a number of data checks for compliance purposes and to ensure completeness.