SmogRank / Alessandria / Castel di Sangro
Alessandria vs Castel di Sangro: PM2.5 compared
Alessandria and Castel di Sangro were both measured on only 0 days over the last year, too few to compare them (it takes 30).
Right now
Alessandria#48on the 24-hour board of 2,366, at 97 US AQI (34.0 µg/m³)
Castel di Sangro–not on the 24-hour board right now
Compare either city with another
Alessandria
Side by side with Sannazzaro de' Burgondi (the nearest), Vinovo (Italy's 2nd worst on 30 days), Gujranwala (the world's worst on 30 days).
Castel di Sangro
Side by side with Cassino (the nearest), Gujranwala (the world's worst on 30 days).
The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.
Updated 2026-10-07 13:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.