SmogRank / Countries / France / Brittany
Most polluted cities in Brittany, France
5 measured cities ranked by PM2.5, this year. Worst: Rennes at 8.1 µg/m³, #1385 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Rennes Brittany | 8.1 | |
| 2 | Brest Brittany | 7.9 | |
| 3 | Vannes Brittany | 7.7 | |
| 4 | Lorient Brittany | 7.5 | |
| 5 | Quimper Brittany | 7.3 |
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.