SmogRank / World / Europe / France / Occitanie

Most polluted cities in Occitanie, France

9 measured cities, last 7 days; 0 above the WHO 24-hour guideline. Worst: Tarbes at 9.3 µg/m³, #912 in the world.

New Aquitaine: 9 measured citiesOccitanie: 9 measured citiesAuvergne-Rhône-Alpes: 18 measured citiesProvence-Alpes-Côte d'Azur: 8 measured cities#9 Rodez: 5.9 µg/m³#8 Castres: 6.7 µg/m³#7 Perpignan: 7.1 µg/m³#6 Lourdes: 7.2 µg/m³#5 Albi: 7.3 µg/m³#4 Toulouse: 7.7 µg/m³#3 Nîmes: 8.5 µg/m³#2 Montpellier: 8.7 µg/m³#1 Tarbes: 9.3 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Tarbes 9.3 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Occitanie, 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. 1Tarbes 51▲20
  2. 2Montpellier 48▼410
  3. 3Nîmes 47▼135
  4. 4Toulouse 43▼424
  5. 5Albi 41▼303
  6. 6Lourdes 40▼252
  7. 7Perpignan 39▼540
  8. 8Castres 37▼502
  9. 9Rodez 33▼267
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

Estimated: cities without a monitor

Occitanie 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
Béziers≈ 9 µg/m³Good
Narbonne≈ 11 µg/m³Moderate
Carcassonne≈ 7 µg/m³Good
Alès≈ 7 µg/m³Good
Sète≈ 8 µg/m³Good
Colomiers≈ 10 µg/m³Moderate
Tournefeuille≈ 10 µg/m³Moderate
Auch≈ 10 µg/m³Moderate
Muret≈ 10 µg/m³Moderate
Blagnac≈ 10 µg/m³Moderate
Cahors≈ 6 µg/m³Good
Millau≈ 5 µg/m³Good
Agde≈ 11 µg/m³Moderate
Frontignan≈ 7 µg/m³Good
Bagnols-sur-Cèze≈ 8 µg/m³Good
Plaisance-du-Touch≈ 10 µg/m³Moderate
Mauguio≈ 8 µg/m³Good
Castelnau-le-Lez≈ 8 µg/m³Good
Lattes≈ 8 µg/m³Good
Pamiers≈ 10 µg/m³Moderate
Balma≈ 9 µg/m³Moderate
Cugnaux≈ 10 µg/m³Moderate

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SmogRank, most polluted cities in Occitanie, France, PM2.5, last 7 days to 2 Oct 2026, 07:00 UTC, smogrank.com/fr/region/occitanie?w=7d.

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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 US AQI PM2.5 sub-index.