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, #285 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.

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. 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	Band
Busto Arsizio	≈ 15 µg/m³	Low
Sesto San Giovanni	≈ 16 µg/m³	Low
Cinisello Balsamo	≈ 16 µg/m³	Low
Pavia	≈ 11 µg/m³	Low
Legnano	≈ 15 µg/m³	Low
Gallarate	≈ 15 µg/m³	Low
Rho	≈ 16 µg/m³	Low
Paderno Dugnano	≈ 16 µg/m³	Low
Cologno Monzese	≈ 16 µg/m³	Low
Seregno	≈ 16 µg/m³	Low
Desio	≈ 16 µg/m³	Low
Cantù	≈ 16 µg/m³	Low
Rozzano	≈ 11 µg/m³	Low
Voghera	≈ 6 µg/m³	Low
Lissone	≈ 16 µg/m³	Low
Cesano Maderno	≈ 16 µg/m³	Low
Bollate	≈ 16 µg/m³	Low
Pioltello	≈ 16 µg/m³	Low
Corsico	≈ 16 µg/m³	Low
Brugherio	≈ 16 µg/m³	Low
Abbiategrasso	≈ 15 µg/m³	Low
Limbiate	≈ 16 µg/m³	Low
Crema	≈ 10 µg/m³	Low
San Giuliano Milanese	≈ 11 µg/m³	Low
Cernusco sul Naviglio	≈ 16 µg/m³	Low
San Donato Milanese	≈ 16 µg/m³	Low
Segrate	≈ 16 µg/m³	Low
Parabiago	≈ 15 µg/m³	Low
Romano Banco	≈ 16 µg/m³	Low
Garbagnate Milanese	≈ 16 µg/m³	Low
Giussano	≈ 16 µg/m³	Low
Bresso	≈ 16 µg/m³	Low
Lainate	≈ 16 µg/m³	Low
Lumezzane	≈ 14 µg/m³	Low
Seriate	≈ 16 µg/m³	Low
Cesano Boscone	≈ 16 µg/m³	Low
San Sebastiano	≈ 14 µg/m³	Low
Muggiò	≈ 16 µg/m³	Low
Seveso	≈ 16 µg/m³	Low
Meda	≈ 16 µg/m³	Low

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SmogRank, most polluted cities in Lombardy, Italy, PM2.5, last 7 days to 2 Oct 2026, 05:00 UTC, smogrank.com/it/region/lombardy?w=7d.

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Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the UK DAQI PM2.5 sub-index.