The National Pollutant Release Inventory (NPRI) is Canada's public inventory of pollutant releases to air, water, and land, disposals, and transfers for recycling. Environment and Climate Change Canada maintains this dataset, which contains annual data from 1993 to the latest reporting year. Files are provided in CSV format and are optimized for pivot table analyses.
Use Cases
- Analyzing long-term trends in industrial pollutant releases based on the 1993 onward time series.
- Mapping facility-level environmental impact based on the geographic location data.
- Assessing waste management practices based on the disposal and transfer-for-recycling quantities.
- Investigating reporting anomalies or context based on the comments provided by facilities.
Strengths
- Data spans over 30 years, from 1993 to the latest reporting year.
- Files are provided in a normalized CSV format optimized for analysis.
- Includes multiple facets of pollution data: releases, disposals, transfers, and geographic locations.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Environment and Climate Change Canada
- Collection Method
- Mandatory reporting by facilities to the National Pollutant Release Inventory (NPRI).
- Time Range
- 1993 to latest reporting year
- Freshness
- Last updated 2026-05-01 19:42:23.015730; freshness should be verified.
- Geography
- Canada