SmogRank / World / Europe / France / Pays de la Loire
Most polluted cities in Pays de la Loire, France
0 measured cities, last 30 days.
No city has enough measurements for this window yet.
China's Air Quality Index (HJ 633-2012), PM2.5 individual index. 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
Pays de la Loire 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 |
|---|---|
| Cholet | ≈ 7 µg/m³ |
| Saint-Herblain | ≈ 6 µg/m³ |
| Rezé | ≈ 6 µg/m³ |
| Saumur | ≈ 7 µg/m³ |
| Saint-Sébastien-sur-Loire | ≈ 6 µg/m³ |
| Orvault | ≈ 6 µg/m³ |
| Vertou | ≈ 7 µg/m³ |
| Challans | ≈ 7 µg/m³ |
| La Flèche | ≈ 7 µg/m³ |
| La Chapelle-sur-Erdre | ≈ 6 µg/m³ |
| Carquefou | ≈ 6 µg/m³ |
| La Baule-Escoublac | ≈ 7 µg/m³ |
| Bouguenais | ≈ 6 µg/m³ |
| Guérande | ≈ 7 µg/m³ |
| Fontenay-le-Comte | ≈ 7 µg/m³ |
| Les Sables-d'Olonne | ≈ 8 µg/m³ |
| Les Herbiers | ≈ 7 µg/m³ |
| Mayenne | ≈ 7 µg/m³ |
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SmogRank, most polluted cities in Pays de la Loire, France, PM2.5, last 30 days to 2 Oct 2026, 05:00 UTC, smogrank.com/fr/region/pays-de-la-loire?w=30d.
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Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the China AQI PM2.5 sub-index.