Most polluted cities in Italy
13 measured cities ranked by PM2.5, last 30 days. Worst: Milan at 13.8 µg/m³, #261 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Milan Lombardy | 13.8 | |
| 2 | Nichelino Piedmont | 12.9 | |
| 3 | Alessandria Piedmont | 12.1 | |
| 4 | Turin Piedmont | 11.7 | |
| 5 | Benevento Campania | 10.6 | |
| 6 | Rovereto Trentino-Alto Adige | 10.2 | |
| 7 | Trento Trentino-Alto Adige | 10.0 | |
| 8 | Aosta Aosta Valley | 10.0 | |
| 9 | Caserta Campania | 9.6 | |
| 10 | Naples Campania | 9.1 | |
| 11 | Salerno Campania | 8.7 | |
| 12 | Bolzano Trentino-Alto Adige | 7.5 | |
| 13 | Gorizia Friuli Venezia Giulia | 5.4 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
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.
| City | 7-day estimate |
|---|---|
| Palermo estimated | ≈ 10 µg/m³ |
| Bologna estimated | ≈ 9 µg/m³ |
| Catania estimated | ≈ 10 µg/m³ |
| Verona estimated | ≈ 12 µg/m³ |
| Messina estimated | ≈ 8 µg/m³ |
| Trieste estimated | ≈ 6 µg/m³ |
| Padua estimated | ≈ 16 µg/m³ |
| Parma estimated | ≈ 9 µg/m³ |
| Modena estimated | ≈ 10 µg/m³ |
| Reggio Calabria estimated | ≈ 8 µg/m³ |
| Reggio nell'Emilia estimated | ≈ 10 µg/m³ |
| Rimini estimated | ≈ 7 µg/m³ |
| Mestre estimated | ≈ 11 µg/m³ |
| Ferrara estimated | ≈ 10 µg/m³ |
| Acilia-Castel Fusano-Ostia Antica estimated | ≈ 11 µg/m³ |
| Siracusa estimated | ≈ 10 µg/m³ |
| Perugia estimated | ≈ 7 µg/m³ |
| Forlì estimated | ≈ 9 µg/m³ |
| Vicenza estimated | ≈ 13 µg/m³ |
| Terni estimated | ≈ 6 µg/m³ |
| Piacenza estimated | ≈ 10 µg/m³ |
| Udine estimated | ≈ 7 µg/m³ |
| Cesena estimated | ≈ 7 µg/m³ |
| Sassari estimated | ≈ 8 µg/m³ |
| Guidonia Montecelio estimated | ≈ 12 µg/m³ |
| Treviso estimated | ≈ 11 µg/m³ |
| Torre del Greco estimated | ≈ 9 µg/m³ |
| Busto Arsizio estimated | ≈ 15 µg/m³ |
| Sesto San Giovanni estimated | ≈ 16 µg/m³ |
| Lucca estimated | ≈ 7 µg/m³ |
| Pozzuoli estimated | ≈ 8 µg/m³ |
| Ravenna estimated | ≈ 9 µg/m³ |
| Fiumicino estimated | ≈ 11 µg/m³ |
| Giugliano in Campania estimated | ≈ 9 µg/m³ |
| Catanzaro estimated | ≈ 5 µg/m³ |
| Marsala estimated | ≈ 8 µg/m³ |
| Pesaro estimated | ≈ 7 µg/m³ |
| Fuorigrotta estimated | ≈ 8 µg/m³ |
| Cinisello Balsamo estimated | ≈ 16 µg/m³ |
| Gela estimated | ≈ 10 µg/m³ |
Regions
Updated 2026-10-01 13:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.