Air quality by country
Air quality in Italy today
Updated
Good: average US AQI 45 across 13 cities Worst now: Milan (66); cleanest: Catania (32).
Live US AQI, PM2.5 and ozone for cities across Italy, ranked from most polluted to cleanest.
- Average US AQI
- 45 Good
- Most polluted now
- Milan AQI 66
- Cleanest now
- Catania AQI 32
- Cities above 100
- 0 unhealthy for sensitive groups or worse
Air quality in Italy today
Right now the modelled air quality in Italy averages a US AQI of 45 (Good) across the 13 cities we track. By category: 10 Good, 3 Moderate (of 13).
That is 21 points better than the worldwide average of 66 across 3,556 cities.
Milan has the worst air at 66 with PM2.5 at 22 µg/m³, while Catania is cleanest at 32. No tracked city is above 100, the level where sensitive groups are advised to cut back outdoors.
Italy cities by AQI (most polluted first)
| City | Region | US AQI | Category | PM2.5 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Milan | Lombardy | 66 | Moderate | 22.1 | 8 |
| Monza | Lombardy | 66 | Moderate | 22.1 | 8 |
| Turin | Piedmont | 63 | Moderate | 25 | 34 |
| Mestre | Veneto | 47 | Good | 11.9 | 39 |
| Venice | Veneto | 47 | Good | 11.9 | 39 |
| Florence | Tuscany | 46 | Good | 7.2 | 51 |
| Bologna | Emilia-Romagna | 41 | Good | 16.5 | 32 |
| Rome | Lazio | 40 | Good | 13.6 | 22 |
| Bari | Apulia | 39 | Good | 3.2 | 75 |
| Palermo | Sicily | 37 | Good | 2.9 | 76 |
| Genoa | Liguria | 33 | Good | 6.1 | 50 |
| Naples | Campania | 32 | Good | 8.6 | 38 |
| Catania | Sicily | 32 | Good | 4.9 | 42 |
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.
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Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).