SmogRank / Countries / Slovakia / March 2025

Most polluted cities in Slovakia, March 2025

32 cities in Slovakia ranked by their average PM2.5 over the 31 days. Worst: Lučenec at 23.6 µg/m³, #257 of 2,218 cities in the world. Cleanest: Žiar nad Hronom at 12.2. A city needs measurements on 70% of the days to be ranked.

  1. 1LučenecBanská Bystrica Region
    23.6
  2. 2PrešovPrešov Region
    22.3
  3. 3MartinŽilina Region
    21.6
  4. 4TrebišovKošice Region
    20.7
  5. 4ŽilinaŽilina Region
    20.7
  6. 6RužomberokŽilina Region
    20.6
  7. 7PúchovTrenčín Region
    20.2
  8. 8HumennéPrešov Region
    19.8
  9. 9Vranov nad TopľouPrešov Region
    19.7
  10. 9KošiceKošice Region
    19.7
  11. 11TrenčínTrenčín Region
    19.5
  12. 12ČadcaŽilina Region
    18.9
  13. 13PezinokBratislava Region
    18.4
  14. 14BardejovPrešov Region
    17.4
  15. 15BratislavaBratislava Region
    17.0
  16. 16ZvolenBanská Bystrica Region
    15.7
  17. 16TrnavaTrnava Region
    15.7
  18. 18SenicaTrnava Region
    15.4
  19. 19NitraNitra Region
    15.3
  20. 20SninaPrešov Region
    14.9
  21. 20MalackyBratislava Region
    14.9
  22. 22PrievidzaTrenčín Region
    14.5
  23. 22KomárnoNitra Region
    14.5
  24. 24HandlováTrenčín Region
    14.3
  25. 25Devínska Nová VesBratislava Region
    14.2
  26. 26SenecBratislava Region
    14.0
  27. 26PartizánskeTrenčín Region
    14.0
  28. 28Liptovský Mikulᚎilina Region
    13.8
  29. 29SereďTrnava Region
    13.7
  30. 30Banská BystricaBanská Bystrica Region
    12.9
  31. 31PopradPrešov Region
    12.4
  32. 32Žiar nad HronomBanská Bystrica Region
    12.2
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

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SmogRank, most polluted cities in Slovakia, PM2.5, March 2025, smogrank.com/sk/history/2025-03 (accessed 2 Oct 2026).

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