SmogRank / Countries / Czechia / December 2023

Most polluted cities in Czechia, December 2023

26 cities in Czechia ranked by their average PM2.5 over the 31 days. Worst: Bohumín at 29.2 µg/m³, #64 of 1,889 cities in the world. Cleanest: Sokolov at 10.4. A city needs measurements on 70% of the days to be ranked.

  1. 1BohumínMoravian-Silesian Region
    29.2
  2. 2HavířovMoravian-Silesian Region
    28.3
  3. 3OstravaMoravian-Silesian Region
    25.4
  4. 4Český TěšínMoravian-Silesian Region
    25.0
  5. 5Frýdek-MístekMoravian-Silesian Region
    24.8
  6. 5DěčínÚstí nad Labem Region
    24.8
  7. 7PřerovOlomouc Region
    22.4
  8. 8Valašské MeziříčíZlín
    22.1
  9. 9TřinecMoravian-Silesian Region
    21.9
  10. 9OlomoucOlomouc Region
    21.9
  11. 11OpavaMoravian-Silesian Region
    21.8
  12. 12BerounCentral Bohemia
    20.6
  13. 13TepliceÚstí nad Labem Region
    20.0
  14. 14Ústí nad LabemÚstí nad Labem Region
    18.9
  15. 15ZlínZlín
    18.7
  16. 16ŽideniceSouth Moravian
    18.3
  17. 17LitvínovÚstí nad Labem Region
    18.1
  18. 18ZnojmoSouth Moravian
    17.9
  19. 18PardubicePardubice Region
    17.9
  20. 20Mladá BoleslavCentral Bohemia
    17.2
  21. 21BrnoSouth Moravian
    16.6
  22. 22KroměřížZlín
    16.3
  23. 23Hradec KrálovéHradec Králové Region
    15.4
  24. 24PilsenPlzeň Region
    13.9
  25. 25LiberecLiberec Region
    13.2
  26. 26SokolovCarlsbad Region
    10.4
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, December 2023 · Czechia now