Bulk data files for all years – releases, disposals, transfers and facility locations

The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases (to air, water and land), disposals and transfers for recycling.

Each file contains data from 1993 to the latest reporting year. These CSV format datasets are in normalized or ‘list’ format and are optimized for pivot table analyses.

Here is a description of each file: - The RELEASES file contains all substance release quantities. - The DISPOSALS file contains all on-site and off-site disposal quantities, including tailings and waste rock (TWR). - The TRANSFERS file contains all quantities transferred for recycling or treatment prior to disposal. - The COMMENTS file contains all the comments provided by facilities about substances included in their report. - The GEO LOCATIONS file contains complete geographic information for all facilities that have reported to the NPRI.

Please consult the following resources to enhance your analysis: - Guide on using and Interpreting NPRI Data: https://www.canada.ca/en/environment-climate-change/services/national-pollutant-release-inventory/using-interpreting-data.html - Access additional data from the NPRI, including datasets and mapping products: https://www.canada.ca/en/environment-climate-change/services/national-pollutant-release-inventory/tools-resources-data/exploredata.html

Supplemental Information

More NPRI datasets and mapping products are available here: https://www.canada.ca/en/environment-climate-change/services/national-pollutant-release-inventory/tools-resources-data/access.html

Supporting Projects: National Pollutant Release Inventory (NPRI)

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 18:32 (UTC)
Created	April 17, 2026, 18:32 (UTC)
contact_email	inrp-npri@ec.gc.ca
contact_person	{}
criticality_level	[]
data_dictionary	[]
geographic_scope	["0"]
open_canada_collection	primary
open_canada_date_published	2025-11-27 00:00:00
open_canada_keywords	{"en": ["Environmental hazards", "Chemicals", "Environmental indicators", "Pollutants", "Environmental programs", "Environmental quality", "Inventory", "Reporting", "Pollutant", "Pollution", "Release", "Emission", "Transfer", "Disposal", "Recycling", "Air", "Land", "Water", "Facility", "Location", "Map", "Database", "NAICS code", "Industry type", "Chemical substance", "Stack", "Criteria air contaminant", "CAC", "Polycyclic aromatichydrocarbon", "PAH", "Dioxin", "Furan", "Hexachlorobenzene", "HCB", "Carbon monoxide", "CO", "Nitrogen oxide", "NOx", "Sulphur dioxide", "SO2", "Particulatematter", "Volatile organic compound", "VOC", "Isomer"], "fr": ["Risque pour l'environnement", "Produit chimique", "Indicateur environnemental", "Polluant", "Programme relatif à l'environnement", "Qualité de l'environnement", "Inventaire", "Déclaration", "Polluant", "Pollution", "Rejet", "Émission", "Transfert", "Élimination", "Recyclage", "Air", "Sol", "Eau", "Installation", "Localisation", "Carte", "Base de données", "Code SCIAN", "Type d'industrie", "Substance chimique", "Cheminée", "Principaux contaminantsatmosphériques", "PAC", "Hydrocarbure aromatique polycyclique", "HAP", "Dioxine", "Furane", "Hexachlorobenzène", "HCB", "Monoxyde de carbone", "CO", "Oxyde d'azote", "NOx", "Dioxyde de soufre", "SO2", "Matière particulaire", "Composés organiques volatils", "COV", "Isomère"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Fichiers de données normalisées pour toutes les années – Rejets, éliminations, transferts et emplacement des installations
update_frequency	P1Y