SmogRank / World / Europe / France / Grand Est

Most polluted cities in Grand Est, France

8 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Thionville at 7.8 µg/m³, #619 in the world.

Île-de-France: 5 measured citiesCentre-Val de Loire: 8 measured citiesBourgogne-Franche-Comté: 2 measured citiesHauts-de-France: 11 measured citiesGrand Est: 8 measured cities#8 Épinal: 4.6 µg/m³#7 Lunéville: 5.6 µg/m³#6 Saint-Dizier: 5.7 µg/m³#5 Reims: 6.1 µg/m³#4 Nancy: 6.2 µg/m³#2 Strasbourg: 6.4 µg/m³#3 Metz: 6.4 µg/m³#1 Thionville: 7.8 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Thionville 7.8 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Grand Est, 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. 1Thionville 10.5×
  2. 2Strasbourg 10.4×
  3. 3Metz 10.4×
  4. 4Nancy 10.4×
  5. 5Reims 10.4×
  6. 6Saint-Dizier 10.4×
  7. 7Lunéville 10.4×
  8. 8Épinal 10.3×
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

Grand Est 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
Charleville-Mézières≈ 6 µg/m³Low risk
Châlons-en-Champagne≈ 9 µg/m³Low risk
Schiltigheim≈ 12 µg/m³Low risk
Vandœuvre-lès-Nancy≈ 7 µg/m³Low risk
Chaumont≈ 6 µg/m³Low risk
Illkirch-Graffenstaden≈ 11 µg/m³Low risk
Montigny-lès-Metz≈ 10 µg/m³Low risk
Saint-Dié-des-Vosges≈ 6 µg/m³Low risk
Sarreguemines≈ 11 µg/m³Low risk
Saint-Louis≈ 12 µg/m³Low risk
Sedan≈ 6 µg/m³Low risk
Sélestat≈ 11 µg/m³Low risk
Bar-le-Duc≈ 7 µg/m³Low risk
Toul≈ 7 µg/m³Low risk
Bischheim≈ 12 µg/m³Low risk
Lingolsheim≈ 11 µg/m³Low risk
Vitry-le-François≈ 9 µg/m³Low risk
Laxou≈ 7 µg/m³Low risk
Villers-lès-Nancy≈ 7 µg/m³Low risk
Wittenheim≈ 8 µg/m³Low risk
Yutz≈ 10 µg/m³Low risk
Hayange≈ 10 µg/m³Low risk
Illzach≈ 10 µg/m³Low risk
Pont-à-Mousson≈ 7 µg/m³Low risk

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SmogRank, most polluted cities in Grand Est, France, PM2.5, last 24 hours to 2 Oct 2026, 05:00 UTC, smogrank.com/fr/region/grand-est.

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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 Canada AQHI+ PM2.5 sub-index.