The Canadian Environmental Sustainability Indicators (CESI) program provides data tracking ambient concentrations of sulfur dioxide and other pollutants at national, regional, urban, and local monitoring station levels. Information is provided by Environment and Climate Change Canada in formats including CSV, interactive maps, and downloadable reports. The dataset was last updated on 2026-04-23.
Use Cases
- Track compliance with Canadian Ambient Air Quality Standards based on the national and regional indicators mentioned.
- Analyze spatial patterns of sulfur dioxide pollution based on data from local monitoring stations.
- Model population exposure to air pollutants for health impact studies based on the described daily exposure context.
- Create visualizations like static or interactive maps using the provided geospatial data formats.
Strengths
- Data is provided by the authoritative national program, Environment and Climate Change Canada.
- Multiple access formats are available, including CSV, GEOJSON, and ESRI REST services.
- Indicators are presented with corresponding Canadian Ambient Air Quality Standards where available.
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 or temporal bias inherent to the monitoring station network.
Provenance
- Source
- Environment and Climate Change Canada | Environnement et Changement climatique Canada
- Collection Method
- Collected from monitoring stations; see supplementary documentation for calculation details.
- Freshness
- Last updated 2026-04-23 20:00:52.416025; freshness should be verified.
- Geography
- Canada (national, regional, urban, and local monitoring station levels)