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 to18 May 2024 That day's board

The worst cities in Italy for PM2.5 over the 30 days to 18 May 2024: Alessandria 16.7 µg/m³, Acerra 16.6 µg/m³ and Benevento 14.5 µg/m³.

  1. 1AlessandriaPiedmont16.7
  2. 2AcerraCampania16.6
  3. 3BeneventoCampania14.5
  4. 4Falconara MarittimaThe Marches13.6
  5. 5ChiaravalleThe Marches12.9
  6. 6NaplesCampania10.9
  7. 7FabrianoThe Marches10.4
  8. 8Ceglie MessapicaApulia10.0
  9. 9Peschiera del GardaVeneto9.8
  10. 10SalernoCampania9.4
  11. 11AnconaThe Marches9.4
  12. 12VigevanoLombardy9.1
  13. 13MortaraLombardy9.1
  14. 14CrescentinoPiedmont8.7
  15. 15RoveretoTrentino-Alto Adige8.4
  16. 16San Pietro VernoticoApulia8.1
  17. 17Porto Potenza PicenaThe Marches8.0
  18. 18Civitanova MarcheThe Marches8.0
  19. 19MilanLombardy8.0
  20. 20CapannoriTuscany8.0

+ 17 more cities, 7.7 µg/m³ and below

Not counted on this day, too few days measured: Pavia since 17 May 2024 and Novara since 13 May 2024.

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.