SmogRank / Countries / Canada / Alberta
Most polluted cities in Alberta, Canada
10 measured cities ranked by PM2.5, last 7 days. Worst: Calgary at 7.6 µg/m³, #1063 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Calgary Alberta | 7.6 | |
| 2 | Red Deer Alberta | 7.3 | |
| 3 | Edmonton Alberta | 6.1 | |
| 4 | Airdrie Alberta | 5.7 | |
| 5 | Lethbridge Alberta | 5.6 | |
| 6 | Sherwood Park Alberta | 4.4 | |
| 7 | Medicine Hat Alberta | 4.3 | |
| 8 | St. Albert Alberta | 3.7 | |
| 9 | Fort McMurray Alberta | 2.3 | |
| 10 | Grande Prairie Alberta | 2.0 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
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 estimated | ≈ 3 µg/m³ |
| Chestermere estimated | ≈ 10 µg/m³ |
| Cochrane estimated | ≈ 9 µg/m³ |
| Lloydminster estimated | ≈ 2 µg/m³ |
| Okotoks estimated | ≈ 6 µg/m³ |
| Camrose estimated | ≈ 3 µg/m³ |
| Stony Plain estimated | ≈ 3 µg/m³ |
| Sylvan Lake estimated | ≈ 5 µg/m³ |
| Leduc estimated | ≈ 3 µg/m³ |
Updated 2026-10-01 09:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.