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 µg/m³ 20 µg/m³0
Every city in Slovakia ranked for August 2025, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1MartinŽilina Region
    20
  2. 2PrešovPrešov Region
    20
  3. 3ZvolenBanská Bystrica Region
    20
  4. 3KomárnoNitra Region
    20
  5. 5ŽilinaŽilina Region
    18
  6. 6HumennéPrešov Region
    18
  7. 7BardejovPrešov Region
    18
  8. 8TrebišovKošice Region
    18
  9. 8SninaPrešov Region
    18
  10. 8Liptovský Mikulᚎilina Region
    18
  11. 11TrnavaTrnava Region
    18
  12. 11SenecBratislava Region
    18
  13. 11LučenecBanská Bystrica Region
    18
  14. 14SereďTrnava Region
    18
  15. 15RužomberokŽilina Region
    17
  16. 15BratislavaBratislava Region
    17
  17. 17KošiceKošice Region
    17
  18. 17TrenčínTrenčín Region
    17
  19. 17PartizánskeTrenčín Region
    17
  20. 20SenicaTrnava Region
    17
  21. 21Vranov nad TopľouPrešov Region
    17
  22. 22ČadcaŽilina Region
    17
  23. 23PezinokBratislava Region
    17
  24. 24PrievidzaTrenčín Region
    15
  25. 25PopradPrešov Region
    15
  26. 25Žiar nad HronomBanská Bystrica Region
    15
  27. 27HandlováTrenčín Region
    15
  28. 28PúchovTrenčín Region
    15
  29. 28NitraNitra Region
    15
  30. 28MalackyBratislava Region
    15
  31. 31Banská BystricaBanská Bystrica Region
    13
  32. 32Devínska Nová VesBratislava Region
    12
Good0–50
Satisfactory51–100
Moderate101–200
Poor201–300
Very poor301–400
Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. 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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