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 22 May 2024: Acerra 18.8 µg/m³, Alessandria 16.4 µg/m³ and Falconara Marittima 15.8 µg/m³.
- 1AcerraCampania18.8
- 2AlessandriaPiedmont16.4
- 3Falconara MarittimaThe Marches15.8
- 4ChiaravalleThe Marches14.6
- 5BeneventoCampania13.9
- 6NaplesCampania12.4
- 7FabrianoThe Marches12.0
- 8AnconaThe Marches11.3
- 9Ceglie MessapicaApulia11.1
- 10SalernoCampania11.0
- 11Peschiera del GardaVeneto10.4
- 12San Pietro VernoticoApulia9.8
- 13VigevanoLombardy9.6
- 14Porto Potenza PicenaThe Marches9.6
- 15Civitanova MarcheThe Marches9.6
- 16MortaraLombardy9.6
- 17RoveretoTrentino-Alto Adige9.3
- 18CrescentinoPiedmont9.3
- 19CapannoriTuscany9.0
- 20PesaroThe Marches8.7
+ 17 more cities, the next at 8.6 µg/m³
Not counted on this day, too few days measured: Pavia since 17 May 2024 and Novara since 13 May 2024.
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 reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.