SmogRank / World / France / Auvergne-Rhône-Alpes / January 2026

Most polluted cities in Auvergne-Rhône-Alpes, France, January 2026

4 cities in Auvergne-Rhône-Alpes, France ranked by their average PM2.5 over the 31 days. Worst: Moulins at 10.9 µg/m³, #999 of 2,593 cities in the world. Cleanest: Aurillac at 6.1. A city needs measurements on 70% of the days to be ranked.

Auvergne-Rhône-Alpes has 20 cities ranked over the last 30 days, but only 4 here: most of its monitors have no readings for January 2026 in OpenAQ's archive, where ours come from, or too few to rank. Cities missing from this board weren't clean, just not measured.

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.

← Moulins 0% 0.75%0
Every city in Auvergne-Rhône-Alpes, France ranked for January 2026, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Moulins
    0%
  2. 2Clermont-Ferrand
    0%
  3. 3Montluçon
    0%
  4. 4Aurillac
    0%
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

All cities in the world, January 2026 · All cities in France, January 2026 · Auvergne-Rhône-Alpes now

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SmogRank, most polluted cities in Auvergne-Rhône-Alpes, France, PM2.5, January 2026, smogrank.com/fr/region/auvergne-rhone-alpes/history/2026-01 (accessed 7 Oct 2026).

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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.