SmogRank / Countries / Canada / New Brunswick
Most polluted cities in New Brunswick, Canada
5 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Edmundston at 4.2 µg/m³, #2,058 in the world.
5 good
- 1Edmundston 4.2
- 2Saint John 3.6
- 3Moncton 3.3
- 4Fredericton 3.2
- 5Miramichi 3.0
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
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 | ≈ 3 µg/m³ |
| Riverview | ≈ 3 µg/m³ |
| Quispamsis | ≈ 4 µg/m³ |
| Lutes Mountain | ≈ 4 µg/m³ |
| Saint John West | ≈ 7 µg/m³ |
Updated 2026-10-01 21:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.