SmogRank / Countries / Slovakia / August 2026

Most polluted cities in Slovakia, August 2026

31 cities in Slovakia ranked by their average PM2.5 over the 31 days. Worst: Trebišov at 14.4 µg/m³, #267 of 2,312 cities in the world. Cleanest: Devínska Nová Ves at 6.1. A city needs measurements on 70% of the days to be ranked.

  1. 1TrebišovKošice Region
    14.4
  2. 2HumennéPrešov Region
    14.0
  3. 3KošiceKošice Region
    13.5
  4. 4KomárnoNitra Region
    12.8
  5. 5Vranov nad TopľouPrešov Region
    12.6
  6. 6TrnavaTrnava Region
    12.4
  7. 7SninaPrešov Region
    12.0
  8. 7PrešovPrešov Region
    12.0
  9. 9SenecBratislava Region
    11.8
  10. 10NitraNitra Region
    11.7
  11. 11PúchovTrenčín Region
    11.6
  12. 12BardejovPrešov Region
    11.3
  13. 13SenicaTrnava Region
    11.1
  14. 13Liptovský Mikulᚎilina Region
    11.1
  15. 15PrievidzaTrenčín Region
    11.0
  16. 16RužomberokŽilina Region
    10.9
  17. 17PezinokBratislava Region
    10.7
  18. 18BratislavaBratislava Region
    10.5
  19. 19ZvolenBanská Bystrica Region
    10.4
  20. 19Žiar nad HronomBanská Bystrica Region
    10.4
  21. 21SereďTrnava Region
    10.3
  22. 22MalackyBratislava Region
    10.2
  23. 23ŽilinaŽilina Region
    10.1
  24. 24MartinŽilina Region
    9.8
  25. 24LučenecBanská Bystrica Region
    9.8
  26. 26PopradPrešov Region
    9.5
  27. 27PartizánskeTrenčín Region
    8.5
  28. 28ČadcaŽilina Region
    8.3
  29. 29HandlováTrenčín Region
    7.2
  30. 30Banská BystricaBanská Bystrica Region
    7.0
  31. 31Devínska Nová VesBratislava Region
    6.1
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, August 2026 · Slovakia now