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
    20
  2. 2MartinŽilina Region
    19
  3. 3PrešovPrešov Region
    18
  4. 4SenicaTrnava Region
    17
  5. 5NitraNitra Region
    17
  6. 6KošiceKošice Region
    17
  7. 7HumennéPrešov Region
    16
  8. 8ŽilinaŽilina Region
    16
  9. 9BratislavaBratislava Region
    15
  10. 10PrievidzaTrenčín Region
    15
  11. 11Vranov nad TopľouPrešov Region
    15
  12. 11Spišská Nová VesKošice Region
    15
  13. 11ZvolenBanská Bystrica Region
    15
  14. 14Žiar nad HronomBanská Bystrica Region
    14
  15. 15PartizánskeTrenčín Region
    14
  16. 16SninaPrešov Region
    13
  17. 16RužomberokŽilina Region
    13
  18. 18TrenčínTrenčín Region
    13
  19. 19Karlova VesBratislava Region
    12
  20. 19Banská BystricaBanská Bystrica Region
    12
  21. 21PopradPrešov Region
    12
  22. 22HandlováTrenčín Region
    11
Excellent0–50
Good51–100
Lightly polluted101–150
Moderately polluted151–200
Heavily polluted201–300
Severely polluted301+

China's Air Quality Index (HJ 633-2012), PM2.5 individual index. 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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