SmogRank / World / Europe / France / Normandy

Most polluted cities in Normandy, France

8 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Le Havre at 5.6 µg/m³, #824 in the world.

Île-de-France: 5 measured citiesCentre-Val de Loire: 8 measured citiesNormandy: 8 measured citiesHauts-de-France: 11 measured citiesPays de la LoireBrittany: 5 measured cities#8 Évreux: 3.2 µg/m³#7 Alençon: 3.3 µg/m³#6 Louviers: 3.4 µg/m³#5 Rouen: 4.1 µg/m³#4 Caen: 4.2 µg/m³#3 Montivilliers: 4.6 µg/m³#1 Le Havre: 5.6 µg/m³#2 Cherbourg: 5.6 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Le Havre 5.6 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Normandy, France, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Le Havre 310.4×
  2. 2Cherbourg 310.4×
  3. 3Montivilliers 260.3×
  4. 4Caen 230.3×
  5. 5Rouen 230.3×
  6. 6Louviers 190.2×
  7. 7Alençon 180.2×
  8. 8Évreux 180.2×
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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.

City7-day estimateBand
Sotteville-lès-Rouen≈ 7 µg/m³Good
Saint-Étienne-du-Rouvray≈ 8 µg/m³Good
Le Grand-Quevilly≈ 7 µg/m³Good
Vernon≈ 8 µg/m³Good
Lisieux≈ 7 µg/m³Good
Hérouville-Saint-Clair≈ 7 µg/m³Good
Mont-Saint-Aignan≈ 8 µg/m³Good
Le Petit-Quevilly≈ 7 µg/m³Good
Fécamp≈ 7 µg/m³Good
Saint-Lô≈ 6 µg/m³Good
Équeurdreville-Hainneville≈ 7 µg/m³Good
Tourlaville≈ 7 µg/m³Good
Argentan≈ 7 µg/m³Good
Flers≈ 7 µg/m³Good
Elbeuf≈ 8 µg/m³Good
Octeville≈ 7 µg/m³Good
Bayeux≈ 7 µg/m³Good
Canteleu≈ 8 µg/m³Good

Bad-air episodes in Normandy

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, last 24 hours to 2 Oct 2026, 11:00 UTC, smogrank.com/fr/region/normandy.

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Updated 2026-10-02 11:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.