Explore National Pollutant Release Inventory data

Note

Please refrain from using the pre-2019 data products while we work to correct identified issues. Links to the Open Data portal for these products have been disabled. Updated data products will be available in March 2021, at which time the links will be reactivated.

Thousands of facilities located across the country report to the NPRI each year. We make this data available to the public on this page.

The data can be used in different ways. For example:

individuals can use it to track pollutants in their own neighbourhoods
researchers can use it to monitor changes to air and water quality
governments can use it to help set up environmental policies

Read about how we use NPRI data.

NPRI 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.

Search NPRI data

Search our database for 1994 to 2017 pollutant releases in your area, as well as information about the facility(s).

Download NPRI data

These easy-to-use files let you dig deeper into the data in a variety of ways

Single year tables
- annual tables of our most popular data fields. One table for each of the last 3 years
Five year summaries
- summaries by air, water or land releases grouped by province, industry type or substance
All years datasets
- annual data since 1994 on pollutant quantities, comments and geolocations
Complete reported datasets
- comprehensive datasets going back to 1994

View NPRI maps

All maps are for the latest data available.

You can access the full collection of raw map files for your own use on our Open Maps page.

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