Ancona vs Milan: PM2.5 compared
Over the last year, Ancona and Milan had about the same air: PM2.5 averaged 14.6 and 14.2 µg/m³, on the 34 days both cities were measured. Ancona had the dirtier air on 9 of those days, Milan on 25. Ancona was over the WHO's daily guideline of 15 µg/m³ on 5 of them, Milan on 13.
Right now
The last year, day by day
Month by month
Year by year
| Year | Ancona | Milan | Days Ancona was worse |
|---|---|---|---|
| 2026 so far | 61 | 61 | 9 |
| 2024 | 57 | 61 | 53 |
Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.
Each city's worst days
Ancona
Milan
Daily means in US AQI, over the days both cities were measured in the last year. Each date opens that day's world board.
Compare either city with another
Ancona
Side by side with Teramo, Gujranwala.
Milan
Side by side with Monza, Vinovo, Gujranwala.
Use this page
SmogRank, PM2.5 daily means compared, Ancona and Milan, 14 Jul 2026 – 4 Oct 2026, smogrank.com/compare/it-ancona/it-milan (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.
Updated 2026-10-06 21:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.