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 6 Oct 2026: Obrenovac 18.5 µg/m³, Novi Pazar 16.5 µg/m³ and Užice 16.1 µg/m³.
- 1ObrenovacCentral Serbia18.5
- 2Novi PazarCentral Serbia16.5
- 3UžiceCentral Serbia16.1
- 4SmederevoCentral Serbia16.0
- 5BelgradeCentral Serbia15.0
- 6KikindaVojvodina13.6
- 7Novi SadVojvodina13.3
- 8NišCentral Serbia12.9
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.