SmogRank / History / City race
Cities in Italy, worst air first, day by day
Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.
The worst cities in Italy for PM2.5 over the 30 days to 13 Jul 2025: Crescentino 15.3 µg/m³, Pavia 13.9 µg/m³ and Rovereto 12.8 µg/m³.
- 1CrescentinoPiedmont15.3
- 2PaviaLombardy13.9
- 3RoveretoTrentino-Alto Adige12.8
- 4San Pietro VernoticoApulia12.4
- 5NichelinoPiedmont12.4
- 6VinovoPiedmont12.4
- 7MilanLombardy12.2
- 8TrentoTrentino-Alto Adige12.1
- 9VercelliPiedmont11.8
- 10LaivesTrentino-Alto Adige11.5
- 11BolzanoTrentino-Alto Adige11.5
- 12Borgo ValsuganaTrentino-Alto Adige10.6
- 13BiellaPiedmont9.6
- 14GoriziaFriuli Venezia Giulia9.4
- 15AostaAosta Valley8.9
Not counted on this day, too few days measured: Jesi since 20 Jun 2025, Falconara Marittima since 20 Jun 2025, Vigevano since 29 May 2025 and 2 more cities.
Cities counted each day
A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.
Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites; we are building the readers for them. Most cities there are missing from this board, not clean. Why.