National Pollutant Release Inventory and Air Pollutant Emission Summaries and Trends Downloadable Datasets

There are a number of factors to keep in mind when using and interpreting National Pollutant Release Inventory (NPRI) data. For example, changes to the list of reported substances over time are important to understand when conducting trend analysis. Please review the Considerations when using NPRI data.

NPRI data are available in various downloadable formats, in addition to the online search tools:

  1. Facility Data
    Information on pollutant releases, disposals and transfers for recycling reported by facilities, and their latitude and longitude coordinates. Downloadable formats include databases, spreadsheets and map layers, with the data also available through the online search tool for facility-reported data.

  2. Air Pollutant Emission Summaries and Trends
    Summaries and trends for key air pollutants based on data reported by facilities combined with estimates for other emission sources such as motor vehicles, residential heating and agricultural activities. This data is downloadable in spreadsheet format, as well as being available through the online search tool for air pollutant emissions.

1. Facility Data

A) Information on pollutant releases, disposals and transfers for recycling reported to the NPRI by industrial and other facilities

This data is also available through the online search tool for facility-reported data, for those users that may have difficulty accessing the data using the downloadable database, spreadsheet and map layer files. Note that facility-reported data within these files is available in the official language of submission.

Downloadable NPRI data
YearMicrosoft Access Format
(October 11, 2013, version)
Microsoft Excel Format
(October 11, 2013, version)
Map Layer in Google Earth™ Format
(October 11, 2013, version)
1993-2012MDB, 95.3 MB--
2012MDB, 9.3 MBXLSX, 13.4 MBKMZ, 1.21 KB
2011MDB, 8.4 MBXLSX, 13.1 MB-
2010MDB, 9.8 MB--
2009MDB, 9.1 MB 
2008MDB, 9.3 MB
2007MDB, 9.5 MB
2006MDB, 9.6 MB
2005MDB, 9.3 MB
2004MDB, 10.9 MB
2003MDB, 8.4 MB
2002MDB, 6.7 MB
2001MDB, 4.8 MB
2000MDB, 4.6 MB
1999MDB, 4.3 MB
1998MDB, 4.1 MB
1997MDB, 4.0 MB
1996MDB, 3.9 MB
1995MDB, 3.6 MB
1994MDB, 3.4 MB
1993MDB, 2.9 MB


B) Structure of the Downloadable NPRI Microsoft Access Database Files

C) Structure of the Downloadable NPRI Microsoft Excel Datasets

D) NPRI Facility Location Table
Information about the location of facilities that report to the NPRI, including latitude and longitude coordinates.

E) Information on the NPRI Map Layers for Use with Google Earth™

2. Air Pollutant Emission Summaries and Trends

Summaries and trends for key air pollutants are based on data reported by facilities combined with estimates for other emission sources such as motor vehicles, residential heating and agricultural activities.

The national, provincial and territorial  data is also available through the online search tool for air pollutant emissions data.

A) National, Provincial and Territorial Air Pollutant Emissions Inventory (APEI) for 2012 for Key Air Pollutants (including information for sub-sectors)

National, Provincial and Territorial Emission Summaries
YearFile Type and Size
2012 Total Air Pollutant Emissions for CanadaExcel, 430 KB (Data as of February 2014)


B) Historical Trends of Air Pollutants in Canada

Historical Trends
YearFile Type and Size
(Data as of February 2014)
Criteria Air Contaminants (National: 1985-2012)Excel 305 KB
Heavy Metals and Persistent Organic Pollutants (National: 1990-2012)Excel 297 KB