SmogRank / Guidonia Montecelio / Milan
Guidonia Montecelio vs Milan: PM2.5 compared
Guidonia Montecelio and Milan were both measured on only 0 days over the last year, too few to compare them (it takes 30).
Right now
Guidonia Montecelio–not on the 24-hour board right now
Milan–not on the 24-hour board right now
Compare either city with another
Guidonia Montecelio
Side by side with Marco Simone, Gujranwala.
Milan
Side by side with Monza, Vinovo, Gujranwala.
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.