SmogRank / Countries / Slovakia / January 2025

Most polluted cities in Slovakia, January 2025

32 cities in Slovakia ranked by their average PM2.5 over the 31 days. Worst: Ružomberok at 29.0 µg/m³, #66 of 1,937 cities in the world. Cleanest: Poprad at 10.1. A city needs measurements on 70% of the days to be ranked.

  1. 1RužomberokŽilina Region
    29.0
  2. 2Liptovský Mikulᚎilina Region
    27.8
  3. 3LučenecBanská Bystrica Region
    25.3
  4. 4KošiceKošice Region
    23.8
  5. 5MartinŽilina Region
    22.7
  6. 6PúchovTrenčín Region
    22.6
  7. 7ŽilinaŽilina Region
    21.8
  8. 8ZvolenBanská Bystrica Region
    20.7
  9. 9PrešovPrešov Region
    20.6
  10. 10ČadcaŽilina Region
    20.0
  11. 11Banská BystricaBanská Bystrica Region
    19.4
  12. 12TrebišovKošice Region
    19.2
  13. 13PrievidzaTrenčín Region
    18.8
  14. 14BardejovPrešov Region
    18.1
  15. 14PezinokBratislava Region
    18.1
  16. 16Vranov nad TopľouPrešov Region
    17.7
  17. 17HumennéPrešov Region
    17.3
  18. 18HandlováTrenčín Region
    17.0
  19. 19PartizánskeTrenčín Region
    16.6
  20. 20Žiar nad HronomBanská Bystrica Region
    16.5
  21. 20TrenčínTrenčín Region
    16.5
  22. 22NitraNitra Region
    15.8
  23. 23SereďTrnava Region
    15.2
  24. 24BratislavaBratislava Region
    14.7
  25. 25TrnavaTrnava Region
    14.5
  26. 26Devínska Nová VesBratislava Region
    13.2
  27. 27SenecBratislava Region
    12.8
  28. 28MalackyBratislava Region
    12.7
  29. 29KomárnoNitra Region
    12.0
  30. 30SninaPrešov Region
    11.7
  31. 30SenicaTrnava Region
    11.7
  32. 32PopradPrešov Region
    10.1
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, January 2025 · Slovakia now