Explore National Pollutant Release Inventory data

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 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 most recent data.

• facility locations
• main air pollutants
• other air pollutants
• water pollutants
• land pollutants
• disposals and transfers of pollutants
• virtual globe maps