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 µg/m³ 20 µg/m³0
Every city in Slovakia ranked for September 2023, 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. 1TrnavaTrnava Region
    23
  2. 2MartinŽilina Region
    22
  3. 3PrešovPrešov Region
    20
  4. 4SenicaTrnava Region
    20
  5. 5NitraNitra Region
    20
  6. 6KošiceKošice Region
    18
  7. 7HumennéPrešov Region
    18
  8. 8ŽilinaŽilina Region
    18
  9. 9BratislavaBratislava Region
    17
  10. 10PrievidzaTrenčín Region
    17
  11. 11Vranov nad TopľouPrešov Region
    17
  12. 11Spišská Nová VesKošice Region
    17
  13. 11ZvolenBanská Bystrica Region
    17
  14. 14Žiar nad HronomBanská Bystrica Region
    17
  15. 15PartizánskeTrenčín Region
    15
  16. 16SninaPrešov Region
    15
  17. 16RužomberokŽilina Region
    15
  18. 18TrenčínTrenčín Region
    15
  19. 19Karlova VesBratislava Region
    13
  20. 19Banská BystricaBanská Bystrica Region
    13
  21. 21PopradPrešov Region
    13
  22. 22HandlováTrenčín Region
    13
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

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.