SmogRank / History / City race

Cities in Poland, worst air first, day by day

Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.

CountriesCities
The 30 days to8 Feb 2026 That day's board

The worst cities in Poland for PM2.5 over the 30 days to 8 Feb 2026: Żywiec 83.0 µg/m³, Kłodzko 55.5 µg/m³ and Czechowice-Dziedzice 54.1 µg/m³.

  1. 1ŻywiecSilesia83.0
  2. 2KłodzkoLower Silesia55.5
  3. 3Czechowice-DziedziceSilesia54.1
  4. 4OtwockMazovia52.9
  5. 5Gorzów WielkopolskiLubusz52.6
  6. 6KrakówLesser Poland52.4
  7. 7TarnówLesser Poland49.8
  8. 8Jastrzębie ZdrójSilesia47.7
  9. 9RzeszówSubcarpathia46.6
  10. 10KaliszGreater Poland46.1
  11. 11ŻaryLubusz45.7
  12. 12DębicaSubcarpathia44.8
  13. 13WłocławekKujawsko-Pomorskie44.0
  14. 14RadomskoŁódź Voivodeship42.8
  15. 15PrzemyślSubcarpathia42.3
  16. 16Zielona GóraLubusz41.0
  17. 17PoznańGreater Poland40.5
  18. 18StarachowiceŚwiętokrzyskie40.1
  19. 19LegionowoMazovia39.9
  20. 20OpoleOpole Voivodeship39.9

+ 39 more cities, 39.8 µg/m³ and below

Not counted on this day, too few days measured: Kutno since 16 Jan 2026, Sulechów since 11 Jan 2026, Skarżysko-Kamienna since 7 Jan 2026 and Świecie since 24 Dec 2025.

30 days7 days
GoodModerateSensitive groupsUnhealthyVery unhealthyHazardousWHO 24-hour guideline, 15 µg/m³Fades where it stood: not counted that day

A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.

Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites; we are building the readers for them. Most cities there are missing from this board, not clean. Why.