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 14 Apr 2025: Murska Sobota 12.4 µg/m³, Celje 11.4 µg/m³ and Zagorje ob Savi 11.2 µg/m³.
- 1Murska SobotaUrban Municipality of Murska Sobota12.4
- 2CeljeUrban Municipality of Celje11.4
- 3Zagorje ob SaviMunicipality of Zagorje ob Savi11.2
- 4KranjUrban Municipality of Kranj11.1
- 5Nova GoricaUrban Municipality of Nova Gorica10.5
- 6PtujUrban Municipality of Ptuj10.3
- 7Novo MestoUrban Municipality of Novo Mesto10.0
- 8LjubljanaLjubljana9.5
- 9MariborUrban Municipality of Maribor9.2
- 10KoperUrban Municipality of Koper8.8
- 11TrbovljeMunicipality of Trbovlje8.7
- 12KostelMunicipality of Kostel5.4
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.