National Pollutant Release Inventory
The National Pollutant Release Inventory (NPRI) is Canada’s public inventory of releases, disposals and transfers. It tracks over 300 pollutants from over 7,000 facilities across Canada.
Preliminary NPRI Data is now available for 2025. Data is available through the NPRI Dashboard and NPRI data search. Additionally, you can download the reviewed data in various formats on our Explore data page.
For technical support to access the data, please email us at inrp-npri@ec.gc.ca.
Services and information
Reporting to the NPRI
Reporting requirements, deadlines and guidance.
Pollution data and reports
Datasets, data highlights, and other data related resources.
Using and interpreting NPRI data
Help using our data.
Video tutorials
Videos about the NPRI, how to report, and how to use the various data products.
Data quality
The quality control process and ensuring data quality.
Consultations
Current and past consultations, proposals for changes, and information on the NPRI working group.
Substance lists
Current substance list, changes over time, and Canada Gazette NPRI notices.
About the National Pollutant Release Inventory
Canada’s public inventory of pollutant releases, disposals and transfers.
Get involved : partnership and mentorship opportunities
Collaborations with museums, festivals, conferences, students, Indigenous peoples, international organizations and more.