SmogRank / Countries / Italy

Most polluted cities in Italy

24 measured cities, last 7 days; 3 above the WHO 24-hour guideline. Worst: Aosta at 19.2 µg/m³, #145 in the world.

9 good  15 moderate

  1. 1AostaAosta Valley 19.2
  2. 2BraPiedmont 16.1
  3. 3MilanLombardy 16.0
  4. 4NichelinoPiedmont 14.6
  5. 5TurinPiedmont 14.1
  6. 6AlessandriaPiedmont 13.8
  7. 7RoveretoTrentino-Alto Adige 12.5
  8. 8TrentoTrentino-Alto Adige 11.5
  9. 9BorgomaneroPiedmont 10.6
  10. 10VerbaniaPiedmont 10.6
  11. 11AnconaThe Marches 10.5
  12. 12BolzanoTrentino-Alto Adige 10.1
  13. 13AcerraCampania 9.5
  14. 14MariglianoCampania 9.3
  15. 15NaplesCampania 9.1
  16. 16BiellaPiedmont 8.9
  17. 17BeneventoCampania 8.3
  18. 18CasertaCampania 8.1
  19. 19SalernoCampania 7.9
  20. 20Cava Dè TirreniCampania 7.6
  21. 21San Felice A CancelloCampania 7.4
  22. 22GoriziaFriuli Venezia Giulia 7.3
  23. 23AvellinoCampania 7.2
  24. 24Nocera InferioreCampania 7.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

Estimated: cities without a monitor

Italy 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
Palermo≈ 10 µg/m³Moderate
Bologna≈ 9 µg/m³Good
Catania≈ 10 µg/m³Moderate
Verona≈ 12 µg/m³Moderate
Messina≈ 8 µg/m³Good
Trieste≈ 6 µg/m³Good
Padua≈ 16 µg/m³Moderate
Parma≈ 9 µg/m³Good
Modena≈ 10 µg/m³Moderate
Reggio Calabria≈ 8 µg/m³Good
Reggio nell'Emilia≈ 10 µg/m³Moderate
Rimini≈ 7 µg/m³Good
Mestre≈ 11 µg/m³Moderate
Ferrara≈ 10 µg/m³Moderate
Acilia-Castel Fusano-Ostia Antica≈ 11 µg/m³Moderate
Siracusa≈ 10 µg/m³Moderate
Perugia≈ 7 µg/m³Good
Forlì≈ 9 µg/m³Good
Vicenza≈ 13 µg/m³Moderate
Terni≈ 6 µg/m³Good
Piacenza≈ 10 µg/m³Moderate
Udine≈ 7 µg/m³Good
Cesena≈ 7 µg/m³Good
Sassari≈ 8 µg/m³Good
Guidonia Montecelio≈ 12 µg/m³Moderate
Treviso≈ 11 µg/m³Moderate
Torre del Greco≈ 9 µg/m³Moderate
Busto Arsizio≈ 15 µg/m³Moderate
Sesto San Giovanni≈ 16 µg/m³Moderate
Lucca≈ 7 µg/m³Good
Pozzuoli≈ 8 µg/m³Good
Ravenna≈ 9 µg/m³Good
Fiumicino≈ 11 µg/m³Moderate
Giugliano in Campania≈ 9 µg/m³Moderate
Catanzaro≈ 5 µg/m³Good
Marsala≈ 8 µg/m³Good
Pesaro≈ 7 µg/m³Good
Fuorigrotta≈ 8 µg/m³Good
Cinisello Balsamo≈ 16 µg/m³Moderate
Gela≈ 10 µg/m³Moderate

Regions

Aosta Valley 1Campania 4Friuli Venezia Giulia 1Lombardy 1Piedmont 3Trentino-Alto Adige 3

Measured cities in each region (30 days).

Updated 2026-10-01 21:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.