SmogRank / Countries / Canada / New Brunswick
Most polluted cities in New Brunswick, Canada
5 measured cities ranked by PM2.5, last 7 days. Worst: Edmundston at 4.8 µg/m³, #1877 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Edmundston New Brunswick | 4.8 | |
| 2 | Moncton New Brunswick | 3.7 | |
| 3 | Miramichi New Brunswick | 3.6 | |
| 4 | Fredericton New Brunswick | 3.4 | |
| 5 | Saint John New Brunswick | 3.4 |
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
New Brunswick 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 |
|---|---|
| Dieppe estimated | ≈ 3 µg/m³ |
| Riverview estimated | ≈ 3 µg/m³ |
| Quispamsis estimated | ≈ 4 µg/m³ |
| Lutes Mountain estimated | ≈ 4 µg/m³ |
| Saint John West estimated | ≈ 7 µg/m³ |
Updated 2026-10-01 07:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.