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.

CountriesCities
The 30 days to14 Sep 2025 That day's board

The worst cities in Italy for PM2.5 over the 30 days to 14 Sep 2025: Jesi 15.5 µg/m³, Ceglie Messapica 14.1 µg/m³ and Crescentino 11.6 µg/m³.

  1. 1JesiThe Marches15.5
  2. 2Ceglie MessapicaApulia14.1
  3. 3CrescentinoPiedmont11.6
  4. 4Falconara MarittimaThe Marches11.4
  5. 5TrentoTrentino-Alto Adige10.7
  6. 6PaviaLombardy10.6
  7. 7NaplesCampania10.6
  8. 8MilanLombardy10.5
  9. 9AcerraCampania10.5
  10. 10VigevanoLombardy9.8
  11. 11MortaraLombardy9.8
  12. 12VercelliPiedmont9.4
  13. 13BorgomaneroPiedmont9.3
  14. 14TurinPiedmont9.2
  15. 15RoveretoTrentino-Alto Adige9.0
  16. 16San Pietro VernoticoApulia8.6
  17. 17CapannoriTuscany7.7
  18. 18LaivesTrentino-Alto Adige7.5
  19. 19BolzanoTrentino-Alto Adige7.5
  20. 20GoriziaFriuli Venezia Giulia7.1

+ 3 more cities, 7.1 µg/m³ and below

Not counted on this day, too few days measured: Novara since 5 Sep 2025, Nichelino since 5 Sep 2025, Vinovo since 5 Sep 2025 and 2 more cities.

30 days7 days
GoodModerateSensitive groupsUnhealthyVery unhealthyHazardousWHO 24-hour guideline, 15 µg/m³Fades where it stood: not counted that 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.