National Pollutant Release Inventory: tools and resources


Reviewed NPRI data is available up to 2022. You can download the data from our Explore Data page. Data is also available on the NPRI Dashboard and NPRI data search.

For technical support to access the data, please email us at

Tools and resources for accessing, analyzing and interpreting National Pollutant Release Inventory (NPRI) data on pollutant releases and transfers in Canada.

Pollution data

We have packaged the data in different ways for different uses.  You can search the entire database, download subsets of data, or view the data on maps:

National Pollutant Release Inventory (NPRI) information products are developed to inform the public on topics related and complementary to the data. Interpretation of these documents should consider NPRI reporting requirements and acknowledge that the NPRI is not an exhaustive inventory of pollutant emissions and their associated risks. This data and information are provided “AS IS” without warranty or condition of any nature; they have not been designed or prepared to meet the website visitors’ particular requirements. The Government of Canada disclaims all other warranties, either expressed or implied. In no event will the Government of Canada be liable for any indirect, special, consequential or other damages attributed to the website visitors’ use of the data or information.

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