Canadian Air Quality Indicators for Fine Particulate Matter at Monitoring Stations

The Canadian Environmental Sustainability Indicators (CESI) program provides data on ambient concentrations of fine particulate matter and other pollutants. Information is provided in formats including CSV, GeoJSON, and interactive maps. The dataset is maintained by Environment and Climate Change Canada and was last updated on 2026-04 28.

Use Cases

• Modeling population exposure to air pollution based on station-level concentration data.
• Analyzing spatial trends in fine particulate matter across national, regional, and urban levels.
• Tracking performance against Canadian Ambient Air Quality Standards for particulate matter.
• Creating visualizations of air quality indicators using the provided geospatial formats.

Strengths

• Data is provided by the authoritative national program (CESI) under Environment and Climate Change Canada.
• Multiple access formats are available, including CSV for tabular analysis and GeoJSON/WMS for geospatial work.
• Coverage includes national, regional, urban, and local monitoring station levels.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the monitoring network in Canada.

Provenance

Source

Environment and Climate Change Canada

Collection Method

Collected from ambient air monitoring stations across Canada; indicator calculation details are in supplementary documentation.

Time Range

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Freshness

Last updated 2026-04-28 14:31:06.171803; freshness should be verified.

Geography

Canada