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 to29 Mar 2023 That day's board

The worst cities in Italy for PM2.5 over the 30 days to 29 Mar 2023: Marigliano 23.1 µg/m³, Benevento 16.0 µg/m³ and Turin 15.8 µg/m³.

  1. 1MariglianoCampania23.1
  2. 2BeneventoCampania16.0
  3. 3TurinPiedmont15.8
  4. 4San Felice A CancelloCampania15.5
  5. 5JesiThe Marches14.5
  6. 6San SeveroApulia14.0
  7. 7Falconara MarittimaThe Marches13.7
  8. 8NaplesCampania13.6
  9. 9BolzanoTrentino-Alto Adige13.2
  10. 10ModugnoApulia12.7
  11. 11AvellinoCampania12.7
  12. 12PesaroThe Marches12.6
  13. 13AnconaThe Marches12.3
  14. 14AcerraCampania11.8
  15. 15LecceApulia11.3
  16. 16GenoaLiguria11.3
  17. 17Ceglie MessapicaApulia10.6
  18. 18Cava Dè TirreniCampania10.4
  19. 19BariApulia10.4
  20. 20AostaAosta Valley9.9

+ 7 more cities, the next at 9.6 µg/m³

Not counted on this day, too few days measured: Taranto since 29 Mar 2023, Nocera Inferiore since 29 Mar 2023, Casamassima since 29 Mar 2023 and 6 more cities. Days missing from the source archive fall in this window, so fewer countries are counted.

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 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.