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 30 days to23 Aug 2023 That day's board

The worst cities in Italy for PM2.5 over the 30 days to 23 Aug 2023: Caserta 10.0 µg/m³ and Capannori 9.7 µg/m³.

  1. 1CasertaCampania10.0
  2. 2CapannoriTuscany9.7

Not counted on this day, too few days measured: Florence since 22 Aug 2023, Prato since 21 Aug 2023, Turin since 29 Jul 2023 and 26 more cities.

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.