Tools and resources for the National Pollutant Release Inventory data


NPRI’s most recent data are now available up to the year 2019! You can download the data from our Explore Data page.
For technical support to access the data, please email us at


The units for all selenium releases on page 10, Elk Valley Water Quality Plan, of the NPRI data integration: Water quality report should be in kilograms instead of tonnes.

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:

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