SmogRank / World / Europe / France / Centre-Val de Loire

Most polluted cities in Centre-Val de Loire, France

8 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Bourges at 5.1 µg/m³, #924 in the world.

Île-de-France: 5 measured citiesCentre-Val de Loire: 8 measured citiesBourgogne-Franche-Comté: 2 measured citiesNormandy: 9 measured citiesHauts-de-France: 11 measured citiesGrand Est: 8 measured citiesPays de la LoireNew Aquitaine: 7 measured citiesAuvergne-Rhône-Alpes: 17 measured cities#8 Tours: 2.9 µg/m³#7 Blois: 3.0 µg/m³#6 Joué-lès-Tours: 3.5 µg/m³#5 Olivet: 3.6 µg/m³#4 Chartres: 3.7 µg/m³#3 Montargis: 4.4 µg/m³#2 Châteauroux: 4.5 µg/m³#1 Bourges: 5.1 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Bourges 5.1 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Centre-Val de Loire, 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. 1Bourges 10.3×
  2. 2Châteauroux 10.3×
  3. 3Montargis 10.3×
  4. 4Chartres 10.2×
  5. 5Olivet 10.2×
  6. 6Joué-lès-Tours 10.2×
  7. 7Blois 10.2×
  8. 8Tours 10.2×
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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

Centre-Val de 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.

City7-day estimateBand
Vierzon≈ 6 µg/m³Low risk
Fleury-les-Aubrais≈ 7 µg/m³Low risk
Romorantin-Lanthenay≈ 6 µg/m³Low risk
Saint-Jean-de-Braye≈ 7 µg/m³Low risk
Vendôme≈ 7 µg/m³Low risk
Lucé≈ 8 µg/m³Low risk
Saint-Jean-de-la-Ruelle≈ 7 µg/m³Low risk
Saint-Cyr-sur-Loire≈ 7 µg/m³Low risk
Saran≈ 7 µg/m³Low risk
Saint-Avertin≈ 6 µg/m³Low risk
Châteaudun≈ 7 µg/m³Low risk
Gien≈ 7 µg/m³Low risk
Saint-Pierre-des-Corps≈ 6 µg/m³Low risk

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SmogRank, most polluted cities in Centre-Val de Loire, France, PM2.5, last 24 hours to 2 Oct 2026, 07:00 UTC, smogrank.com/fr/region/centre-val-de-loire.

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