SmogRank / Countries / France / Brittany
Most polluted cities in Brittany, France
5 measured cities ranked by PM2.5, last 30 days. Worst: Brest at 6.3 µg/m³, #1121 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Brest Brittany | 6.3 | |
| 2 | Rennes Brittany | 5.4 | |
| 3 | Lorient Brittany | 4.8 | |
| 4 | Vannes Brittany | 4.5 | |
| 5 | Quimper Brittany | 4.3 |
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
Brittany 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 |
|---|---|
| Saint-Brieuc estimated | ≈ 6 µg/m³ |
| Lanester estimated | ≈ 6 µg/m³ |
| Fougères estimated | ≈ 6 µg/m³ |
| Lannion estimated | ≈ 7 µg/m³ |
| Concarneau estimated | ≈ 6 µg/m³ |
| Ploemeur estimated | ≈ 7 µg/m³ |
| Morlaix estimated | ≈ 6 µg/m³ |
| Vitré estimated | ≈ 6 µg/m³ |
| Pontivy estimated | ≈ 6 µg/m³ |
| Douarnenez estimated | ≈ 7 µg/m³ |
| Cesson-Sévigné estimated | ≈ 6 µg/m³ |
| Landerneau estimated | ≈ 7 µg/m³ |
Updated 2026-10-01 14:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.