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 to26 Mar 2023 That day's board

The worst cities in Italy for PM2.5 over the 30 days to 26 Mar 2023: Marigliano 27.3 µg/m³, Benevento 18.3 µg/m³ and Turin 16.9 µg/m³.

  1. 1MariglianoCampania27.3
  2. 2BeneventoCampania18.3
  3. 3TurinPiedmont16.9
  4. 4San Felice A CancelloCampania16.8
  5. 5JesiThe Marches15.6
  6. 6Falconara MarittimaThe Marches14.9
  7. 7San SeveroApulia14.8
  8. 8NaplesCampania14.1
  9. 9BolzanoTrentino-Alto Adige13.6
  10. 10ModugnoApulia13.4
  11. 11AcerraCampania13.1
  12. 12AvellinoCampania13.0
  13. 13AnconaThe Marches12.8
  14. 14PesaroThe Marches12.6
  15. 15CasamassimaApulia12.3
  16. 16LuceraApulia12.2
  17. 17LecceApulia11.4
  18. 18GenoaLiguria11.2
  19. 19Ceglie MessapicaApulia11.2
  20. 20Nocera InferioreCampania10.9

+ 14 more cities, 10.9 µg/m³ and below

Not counted on this day, too few days measured: Savona since 26 Mar 2023 and Galatina since 26 Mar 2023. 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 readers for them. Most cities there are missing from this board, not clean. Why.