SmogRank / World / Slovakia / September 2023

Most polluted cities in Slovakia, September 2023

22 cities in Slovakia ranked by their average PM2.5 over the 30 days. Worst: Trnava at 13.8 µg/m³, #146 of 1,830 cities in the world. Cleanest: Handlová at 7.7. A city needs measurements on 70% of the days to be ranked.

← Trnava 13.8
Every city in Slovakia ranked for September 2023, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1TrnavaTrnava Region
    60
  2. 2MartinŽilina Region
    58
  3. 3PrešovPrešov Region
    57
  4. 4SenicaTrnava Region
    56
  5. 5NitraNitra Region
    56
  6. 6KošiceKošice Region
    55
  7. 7HumennéPrešov Region
    54
  8. 8ŽilinaŽilina Region
    54
  9. 9BratislavaBratislava Region
    53
  10. 10PrievidzaTrenčín Region
    53
  11. 11Vranov nad TopľouPrešov Region
    52
  12. 11Spišská Nová VesKošice Region
    52
  13. 11ZvolenBanská Bystrica Region
    52
  14. 14Žiar nad HronomBanská Bystrica Region
    52
  15. 15PartizánskeTrenčín Region
    51
  16. 16SninaPrešov Region
    50
  17. 16RužomberokŽilina Region
    50
  18. 18TrenčínTrenčín Region
    49
  19. 19Karlova VesBratislava Region
    47
  20. 19Banská BystricaBanská Bystrica Region
    47
  21. 21PopradPrešov Region
    46
  22. 22HandlováTrenčín Region
    43
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

All cities in the world, September 2023 · Slovakia now

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SmogRank, most polluted cities in Slovakia, PM2.5, September 2023, smogrank.com/sk/history/2023-09 (accessed 2 Oct 2026).

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