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.

CountriesCities
The 30 days to14 Mar 2025 That day's board

The worst cities in Serbia for PM2.5 over the 30 days to 14 Mar 2025: Zaječar 81.3 µg/m³, Negotin 79.6 µg/m³ and Leskovac 67.7 µg/m³.

  1. 1ZaječarCentral Serbia81.3
  2. 2NegotinCentral Serbia79.6
  3. 3LeskovacCentral Serbia67.7
  4. 4Novi PazarCentral Serbia62.9
  5. 5KruševacCentral Serbia61.6
  6. 6ŠabacCentral Serbia61.1
  7. 7ProkupljeCentral Serbia60.0
  8. 8LoznicaCentral Serbia53.9
  9. 9ValjevoCentral Serbia53.7
  10. 10UžiceCentral Serbia53.3
  11. 11VranjeCentral Serbia50.6
  12. 12AriljeCentral Serbia49.0
  13. 13KikindaVojvodina48.1
  14. 14ČačakCentral Serbia46.6
  15. 15SmederevoCentral Serbia46.0
  16. 16PirotCentral Serbia45.8
  17. 17Sremska MitrovicaVojvodina45.5
  18. 18KraljevoCentral Serbia45.0
  19. 19NišCentral Serbia43.8
  20. 20LazarevacCentral Serbia42.4

+ 19 more cities, 42.2 µg/m³ and below

30 days7 days
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.