SmogRank / History / City race
Cities in Slovenia, 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 Slovenia for PM2.5 over the 30 days to 15 Mar 2025: Murska Sobota 32.5 µg/m³, Celje 31.9 µg/m³ and Ptuj 28.7 µg/m³.
- 1Murska SobotaUrban Municipality of Murska Sobota32.5
- 2CeljeUrban Municipality of Celje31.9
- 3PtujUrban Municipality of Ptuj28.7
- 4Zagorje ob SaviMunicipality of Zagorje ob Savi26.8
- 5Novo MestoUrban Municipality of Novo Mesto26.6
- 6MariborUrban Municipality of Maribor22.8
- 7KranjUrban Municipality of Kranj22.6
- 8Nova GoricaUrban Municipality of Nova Gorica22.2
- 9TrbovljeMunicipality of Trbovlje22.0
- 10KoperUrban Municipality of Koper22.0
- 11LjubljanaLjubljana21.3
- 12KostelMunicipality of Kostel9.3
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 readers for them. Most cities there are missing from this board, not clean. Why.