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
    2
  2. 2MartinŽilina Region
    2
  3. 3PrešovPrešov Region
    2
  4. 4SenicaTrnava Region
    2
  5. 5NitraNitra Region
    2
  6. 6KošiceKošice Region
    2
  7. 7HumennéPrešov Region
    2
  8. 8ŽilinaŽilina Region
    2
  9. 9BratislavaBratislava Region
    2
  10. 10PrievidzaTrenčín Region
    1
  11. 11Vranov nad TopľouPrešov Region
    1
  12. 11Spišská Nová VesKošice Region
    1
  13. 11ZvolenBanská Bystrica Region
    1
  14. 14Žiar nad HronomBanská Bystrica Region
    1
  15. 15PartizánskeTrenčín Region
    1
  16. 16SninaPrešov Region
    1
  17. 16RužomberokŽilina Region
    1
  18. 18TrenčínTrenčín Region
    1
  19. 19Karlova VesBratislava Region
    1
  20. 19Banská BystricaBanská Bystrica Region
    1
  21. 21PopradPrešov Region
    1
  22. 22HandlováTrenčín Region
    1
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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

Use this board

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

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.