SmogRank / World / Europe / France / Normandy
Most polluted cities in Normandy, France
10 measured cities, this year; 10 above the WHO annual guideline. Worst: Le Havre at 9.2 µg/m³, #1,251 in the world.
About 2.33K people in this city breathed unhealthy air on an average day so far this year.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
- 1Rouen 2.33K
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Normandy 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 |
|---|---|
| Sotteville-lès-Rouen | ≈ 6 µg/m³ |
| Saint-Étienne-du-Rouvray | ≈ 7 µg/m³ |
| Le Grand-Quevilly | ≈ 6 µg/m³ |
| Vernon | ≈ 5 µg/m³ |
| Lisieux | ≈ 6 µg/m³ |
| Hérouville-Saint-Clair | ≈ 6 µg/m³ |
| Mont-Saint-Aignan | ≈ 6 µg/m³ |
| Le Petit-Quevilly | ≈ 6 µg/m³ |
| Fécamp | ≈ 6 µg/m³ |
| Saint-Lô | ≈ 5 µg/m³ |
| Louviers | ≈ 6 µg/m³ |
| Équeurdreville-Hainneville | ≈ 6 µg/m³ |
| Tourlaville | ≈ 6 µg/m³ |
| Argentan | ≈ 5 µg/m³ |
| Flers | ≈ 5 µg/m³ |
| Elbeuf | ≈ 6 µg/m³ |
| Octeville | ≈ 6 µg/m³ |
| Montivilliers | ≈ 6 µg/m³ |
| Bayeux | ≈ 5 µg/m³ |
| Canteleu | ≈ 6 µg/m³ |
Bad-air episodes in Normandy
- Belgium, France and 2 more countries, June 202625 June 2026, 1 day15 cities39 µg/m³peak, Unna
- Europe, 18 to 25 March 20268 days430 cities136 µg/m³peak, Łask
- Europe, 1 to 12 March 202612 days532 cities109 µg/m³peak, Radomsko
- France, January 20264 January 2026, 1 day10 cities33 µg/m³peak, Tours
- Europe, December 2025 to January 202625 December 2025 to 2 January 2026, 9 days189 cities110 µg/m³peak, Kempten (Allgäu)
- Belgium, France and 2 more countries, October 202511 to 12 October 2025, 2 days12 cities31 µg/m³peak, Roeselare
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
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SmogRank, most polluted cities in Normandy, France, PM2.5, this year to 6 Oct 2026, 22:00 UTC, smogrank.com/fr/region/normandy?w=year.
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.