SmogRank / Countries / Slovakia / April 2026

Most polluted cities in Slovakia, April 2026

32 cities in Slovakia ranked by their average PM2.5 over the 30 days. Worst: Púchov at 15.7 µg/m³, #292 of 2,283 cities in the world. Cleanest: Banská Bystrica at 6.2. A city needs measurements on 70% of the days to be ranked.

  1. 1PúchovTrenčín Region
    15.7
  2. 2PrešovPrešov Region
    13.5
  3. 3TrenčínTrenčín Region
    13.2
  4. 4RužomberokŽilina Region
    12.7
  5. 5HumennéPrešov Region
    12.5
  6. 6ŽilinaŽilina Region
    12.3
  7. 7ČadcaŽilina Region
    12.1
  8. 8SenicaTrnava Region
    11.8
  9. 8MartinŽilina Region
    11.8
  10. 10TrebišovKošice Region
    11.7
  11. 10KošiceKošice Region
    11.7
  12. 10LučenecBanská Bystrica Region
    11.7
  13. 13Vranov nad TopľouPrešov Region
    11.6
  14. 13KomárnoNitra Region
    11.6
  15. 15BardejovPrešov Region
    11.0
  16. 15MalackyBratislava Region
    11.0
  17. 17Liptovský Mikulᚎilina Region
    10.9
  18. 18NitraNitra Region
    10.8
  19. 19ZvolenBanská Bystrica Region
    10.5
  20. 20SenecBratislava Region
    10.3
  21. 21SereďTrnava Region
    10.2
  22. 22PopradPrešov Region
    9.9
  23. 22PrievidzaTrenčín Region
    9.9
  24. 24PezinokBratislava Region
    9.6
  25. 25SninaPrešov Region
    9.5
  26. 25TrnavaTrnava Region
    9.5
  27. 25BratislavaBratislava Region
    9.5
  28. 28PartizánskeTrenčín Region
    9.1
  29. 29Devínska Nová VesBratislava Region
    9.0
  30. 30Žiar nad HronomBanská Bystrica Region
    7.5
  31. 30HandlováTrenčín Region
    7.5
  32. 32Banská BystricaBanská Bystrica Region
    6.2
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, April 2026 · Slovakia now