SmogRank / World / France / Auvergne-Rhône-Alpes / April 2023
Most polluted cities in Auvergne-Rhône-Alpes, France, April 2023
17 cities in Auvergne-Rhône-Alpes, France ranked by their average PM2.5 over the 30 days. Worst: Passy at 8.2 µg/m³, #752 of 1,567 cities in the world. Cleanest: Aurillac at 3.7. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none for 3 of these 30 days. Cities in the United States and Europe have them from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.
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.
- 1Passy 0%
- 2Romans-sur-Isère 0%
- 3Lyon 0%
- 4Jonage 0%
- 4Annecy 0%
- 6Valence 0%
- 7Saint-Étienne 0%
- 7Bourg-en-Bresse 0%
- 9Givors 0%
- 9Annemasse 0%
- 11Chambéry 0%
- 12Clermont-Ferrand 0%
- 13Grenoble 0%
- 13Crolles 0%
- 15Saint-Chamond 0%
- 16Albertville 0%
- 17Aurillac 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
All cities in the world, April 2023 · All cities in France, April 2023 · Auvergne-Rhône-Alpes now
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SmogRank, most polluted cities in Auvergne-Rhône-Alpes, France, PM2.5, April 2023, smogrank.com/fr/region/auvergne-rhone-alpes/history/2023-04 (accessed 7 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.