SmogRank / World / Slovakia / August 2025

Most polluted cities in Slovakia, August 2025

32 cities in Slovakia ranked by their average PM2.5 over the 31 days. Worst: Martin at 12.3 µg/m³, #638 of 2,503 cities in the world. Cleanest: Devínska Nová Ves at 6.6. A city needs measurements on 70% of the days to be ranked.

← Martin 12.3
Every city in Slovakia ranked for August 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1MartinŽilina Region
    57
  2. 2PrešovPrešov Region
    56
  3. 3ZvolenBanská Bystrica Region
    56
  4. 3KomárnoNitra Region
    56
  5. 5ŽilinaŽilina Region
    55
  6. 6HumennéPrešov Region
    55
  7. 7BardejovPrešov Region
    54
  8. 8TrebišovKošice Region
    54
  9. 8SninaPrešov Region
    54
  10. 8Liptovský Mikulᚎilina Region
    54
  11. 11TrnavaTrnava Region
    54
  12. 11SenecBratislava Region
    54
  13. 11LučenecBanská Bystrica Region
    54
  14. 14SereďTrnava Region
    54
  15. 15RužomberokŽilina Region
    53
  16. 15BratislavaBratislava Region
    53
  17. 17KošiceKošice Region
    53
  18. 17TrenčínTrenčín Region
    53
  19. 17PartizánskeTrenčín Region
    53
  20. 20SenicaTrnava Region
    53
  21. 21Vranov nad TopľouPrešov Region
    53
  22. 22ČadcaŽilina Region
    52
  23. 23PezinokBratislava Region
    52
  24. 24PrievidzaTrenčín Region
    51
  25. 25PopradPrešov Region
    49
  26. 25Žiar nad HronomBanská Bystrica Region
    49
  27. 27HandlováTrenčín Region
    48
  28. 28PúchovTrenčín Region
    48
  29. 28NitraNitra Region
    48
  30. 28MalackyBratislava Region
    48
  31. 31Banská BystricaBanská Bystrica Region
    44
  32. 32Devínska Nová VesBratislava Region
    37
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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SmogRank, most polluted cities in Slovakia, PM2.5, August 2025, smogrank.com/sk/history/2025-08 (accessed 2 Oct 2026).

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