SmogRank / Countries / Canada / Alberta
Most polluted cities in Alberta, Canada
7 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Edmonton at 7.4 µg/m³, #631 in the world.
7 good
- 1Edmonton 7.40.5×
- 2Red Deer 7.20.5×
- 3Medicine Hat 4.50.3×
- 4Calgary 4.10.3×
- 5Airdrie 4.00.3×
- 6St. Albert 2.40.2×
- 7Fort McMurray 2.20.1×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
Estimated: cities without a monitor
Alberta cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Spruce Grove | ≈ 4 µg/m³ |
| Chestermere | ≈ 9 µg/m³ |
| Cochrane | ≈ 8 µg/m³ |
| Lloydminster | ≈ 2 µg/m³ |
| Okotoks | ≈ 6 µg/m³ |
| Camrose | ≈ 3 µg/m³ |
| Stony Plain | ≈ 4 µg/m³ |
| Sylvan Lake | ≈ 5 µg/m³ |
| Leduc | ≈ 3 µg/m³ |
Updated 2026-10-01 20:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.