SmogRank / World / France / Normandy / 2026
Most polluted cities in Normandy, France, 2026
10 cities in Normandy, France ranked by their average PM2.5 so far (278 of 365 days); 10 above the WHO annual guideline (5.0 µg/m³). Worst: Le Havre at 9.2 µg/m³, #1,255 of 2,745 cities in the world. Cleanest: La Ferté-Macé at 5.8. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Dieppe 2%
- 2Rouen 2%
- 3Le Havre 1%
- 4Harfleur 1%
- 5Val-de-Reuil 1%
- 6Cherbourg 1%
- 7La Ferté-Macé 0%
- 8Caen 0%
- 9Évreux 0%
- 10Alençon 0%
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
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SmogRank, most polluted cities in Normandy, France, PM2.5, 2026 (so far), smogrank.com/fr/region/normandy/history/2026 (accessed 6 Oct 2026).
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.