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.
The worst cities in Poland for PM2.5 over the 30 days to 12 Nov 2024: Bielsko-Biala 33.0 µg/m³, Racibórz 32.8 µg/m³ and Zgierz 32.4 µg/m³.
- 1Bielsko-BialaSilesia33.0
- 2RacibórzSilesia32.8
- 3ZgierzŁódź Voivodeship32.4
- 4ŻywiecSilesia32.2
- 5Czechowice-DziedziceSilesia30.6
- 6Jastrzębie ZdrójSilesia30.5
- 7KielceŚwiętokrzyskie29.8
- 8OtwockMazovia29.1
- 9LublinLublin28.3
- 10PołaniecŚwiętokrzyskie28.0
- 11KłodzkoLower Silesia27.6
- 12Skarżysko-KamiennaŚwiętokrzyskie27.3
- 13WłocławekKujawsko-Pomorskie27.0
- 14KościanGreater Poland26.8
- 15KaliszGreater Poland26.8
- 16ChojnówLower Silesia26.4
- 17PrzemyślSubcarpathia26.2
- 18KatowiceSilesia26.2
- 19KutnoŁódź Voivodeship26.1
- 20DziałdowoWarmia-Masuria25.9
+ 54 more cities, 25.8 µg/m³ and below
Not counted on this day, too few days measured: Mielec since 16 Oct 2024.
Cities counted each 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.