Welcome to Environment Canada's National Pollutant Release Inventory

The National Pollutant Release Inventory (NPRI) is a legislated, nation-wide, publicly-accessible inventory of pollutants released, disposed of and recycled by facilities in Canada. Facilities which meet reporting requirements are required to report to the NPRI under the Canadian Environmental Protection Act, 1999 (CEPA 1999).

Information on releases to air collected by the NPRI is included in the national emissions inventory of Criteria Air Contaminants (CACs). This inventory also includes emission estimates for facilities that are not required to report to the NPRI, and non-facility emission sources such as forest fires, motor vehicles and residential fuel combustion.

What's New!

• Report of the National Pollutant Release Inventory Multi-stakeholder Work Group on Substances (2006-2008) is now available

• The unreviewed 2006 data is now available using the NPRI Search Tool.

• The NPRI Facility Location table is now available for download as a .kmz file for use with Google Earth.