SmogRank / World / Europe / Italy / Lombardy
Most polluted cities in Lombardy, Italy
1 measured city, last 7 days; 1 above the WHO 24-hour guideline. Worst: Milan at 16.0 µg/m³, #286 in the world.
The 20 monitors run by ARPA Lazio in Italy haven't reported for more than two days. Cities that rely on them are missing from the 24-hour board and may drop from the longer ones; they return when the data does.
- 1Milan 23▼62
China's Air Quality Index (HJ 633-2012), PM2.5 individual index. 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
Lombardy 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 |
|---|---|
| Busto Arsizio | ≈ 15 µg/m³ |
| Sesto San Giovanni | ≈ 16 µg/m³ |
| Cinisello Balsamo | ≈ 16 µg/m³ |
| Pavia | ≈ 11 µg/m³ |
| Legnano | ≈ 15 µg/m³ |
| Gallarate | ≈ 15 µg/m³ |
| Rho | ≈ 16 µg/m³ |
| Paderno Dugnano | ≈ 16 µg/m³ |
| Cologno Monzese | ≈ 16 µg/m³ |
| Seregno | ≈ 16 µg/m³ |
| Desio | ≈ 16 µg/m³ |
| Cantù | ≈ 16 µg/m³ |
| Rozzano | ≈ 11 µg/m³ |
| Voghera | ≈ 6 µg/m³ |
| Lissone | ≈ 16 µg/m³ |
| Cesano Maderno | ≈ 16 µg/m³ |
| Bollate | ≈ 16 µg/m³ |
| Pioltello | ≈ 16 µg/m³ |
| Corsico | ≈ 16 µg/m³ |
| Brugherio | ≈ 16 µg/m³ |
| Abbiategrasso | ≈ 15 µg/m³ |
| Limbiate | ≈ 16 µg/m³ |
| Crema | ≈ 10 µg/m³ |
| San Giuliano Milanese | ≈ 11 µg/m³ |
| Cernusco sul Naviglio | ≈ 16 µg/m³ |
| San Donato Milanese | ≈ 16 µg/m³ |
| Segrate | ≈ 16 µg/m³ |
| Parabiago | ≈ 15 µg/m³ |
| Romano Banco | ≈ 16 µg/m³ |
| Garbagnate Milanese | ≈ 16 µg/m³ |
| Giussano | ≈ 16 µg/m³ |
| Bresso | ≈ 16 µg/m³ |
| Lainate | ≈ 16 µg/m³ |
| Lumezzane | ≈ 14 µg/m³ |
| Seriate | ≈ 16 µg/m³ |
| Cesano Boscone | ≈ 16 µg/m³ |
| San Sebastiano | ≈ 14 µg/m³ |
| Muggiò | ≈ 16 µg/m³ |
| Seveso | ≈ 16 µg/m³ |
| Meda | ≈ 16 µg/m³ |
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SmogRank, most polluted cities in Lombardy, Italy, PM2.5, last 7 days to 2 Oct 2026, 06:00 UTC, smogrank.com/it/region/lombardy?w=7d.
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Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the China AQI PM2.5 sub-index.