SmogRank / Countries / Czechia / July 2023

Most polluted cities in Czechia, July 2023

21 cities in Czechia ranked by their average PM2.5 over the 31 days. Worst: Havířov at 11.4 µg/m³, #357 of 1,103 cities in the world. Cleanest: Ústí nad Labem at 7.9. A city needs measurements on 70% of the days to be ranked.

  1. 1HavířovMoravian-Silesian Region
    11.4
  2. 2PřerovOlomouc Region
    10.8
  3. 3MostÚstí nad Labem Region
    10.7
  4. 4DěčínÚstí nad Labem Region
    10.6
  5. 5Hradec KrálovéHradec Králové Region
    10.5
  6. 6PraguePrague
    10.4
  7. 6KadaňÚstí nad Labem Region
    10.4
  8. 8Valašské MeziříčíZlín
    10.3
  9. 9ZlínZlín
    9.9
  10. 9ŽideniceSouth Moravian
    9.9
  11. 11TepliceÚstí nad Labem Region
    9.5
  12. 11LitvínovÚstí nad Labem Region
    9.5
  13. 11LiberecLiberec Region
    9.5
  14. 14PardubicePardubice Region
    9.4
  15. 15ZnojmoSouth Moravian
    9.3
  16. 16České BudějoviceSouth Bohemian Region
    9.1
  17. 17Mladá BoleslavCentral Bohemia
    9.0
  18. 18SokolovCarlsbad Region
    8.5
  19. 19BrnoSouth Moravian
    8.4
  20. 20PilsenPlzeň Region
    8.2
  21. 21Ústí nad LabemÚstí nad Labem Region
    7.9
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, July 2023 · Czechia now

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SmogRank, most polluted cities in Czechia, PM2.5, July 2023, smogrank.com/cz/history/2023-07 (accessed 1 Oct 2026).

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