SmogRank / History / City race
Cities in Serbia, 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 Serbia for PM2.5 over the 30 days to 10 Oct 2025: Prokuplje 19.4 µg/m³, Leskovac 17.4 µg/m³ and Zaječar 16.9 µg/m³.
- 1ProkupljeCentral Serbia19.4
- 2LeskovacCentral Serbia17.4
- 3ZaječarCentral Serbia16.9
- 4ŠabacCentral Serbia15.5
- 5LoznicaCentral Serbia14.5
- 6ObrenovacCentral Serbia14.4
- 7PirotCentral Serbia13.8
- 8KruševacCentral Serbia13.8
- 9Sremska MitrovicaVojvodina13.6
- 10VinčaCentral Serbia13.5
- 11ParaćinCentral Serbia13.3
- 12ĆuprijaCentral Serbia13.3
- 13UžiceCentral Serbia13.2
- 14VranjeCentral Serbia13.1
- 15KraljevoCentral Serbia13.1
- 16SmederevoCentral Serbia13.0
- 17ČačakCentral Serbia12.9
- 18ValjevoCentral Serbia12.9
- 19ZemunCentral Serbia12.8
- 20SurčinCentral Serbia12.8
+ 16 more cities, 12.6 µg/m³ and below
Not counted on this day, too few days measured: Novi Pazar since 10 Oct 2025, Kragujevac since 10 Oct 2025 and Ripanj since 5 Oct 2025.
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.