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 to13 Mar 2026 That day's board

The worst cities in Poland for PM2.5 over the 30 days to 13 Mar 2026: Otwock 45.3 µg/m³, Włocławek 39.2 µg/m³ and Radomsko 39.2 µg/m³.

  1. 1OtwockMazovia45.3
  2. 2WłocławekKujawsko-Pomorskie39.2
  3. 3RadomskoŁódź Voivodeship39.2
  4. 4ŁaskŁódź Voivodeship38.6
  5. 5KaliszGreater Poland38.5
  6. 6Gorzów WielkopolskiLubusz38.5
  7. 7ZgierzŁódź Voivodeship37.0
  8. 8ŻywiecSilesia36.7
  9. 9DębicaSubcarpathia31.7
  10. 10KłodzkoLower Silesia31.1
  11. 11Czechowice-DziedziceSilesia30.6
  12. 12ToruńKujawsko-Pomorskie29.7
  13. 13TarnówLesser Poland29.5
  14. 14JarosławSubcarpathia29.3
  15. 15RzeszówSubcarpathia29.0
  16. 16StarachowiceŚwiętokrzyskie28.8
  17. 17PoznańGreater Poland28.8
  18. 18ZamośćLublin28.3
  19. 19NiskoSubcarpathia28.2
  20. 20KrakówLesser Poland27.5

+ 38 more cities, 27.3 µg/m³ and below

Not counted on this day, too few days measured: Kutno since 16 Jan 2026.

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.