Eastern Europe, November 2025
For 3 days, from 8 to 10 November 2025, 71 cities in Poland, Germany, Czechia and 7 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Żywiec, Silesia, Poland: 93.0 µg/m³ on 9 November, about 3.5× its usual 26.7.
Day by day
How it spread
Every city it reached
| City | Days | Highest | Above usual |
|---|---|---|---|
| OlpeNorth Rhine-Westphalia, Germany | 2 | 32.89 November | 6.6× |
| MalmöSkåne, Sweden | 1 | 25.68 November | 5.1× |
| HildesheimLower Saxony, Germany | 1 | 26.29 November | 5.0× |
| DarmstadtHesse, Germany | 1 | 27.38 November | 4.8× |
| OpavaMoravian-Silesian Region, Czechia | 1 | 36.48 November | 4.8× |
| ŻaryLubusz, Poland | 2 | 54.48 November | 4.5× |
| HaarlemNorth Holland, The Netherlands | 1 | 37.18 November | 4.5× |
| Blankenfelde-MahlowBrandenburg, Germany | 2 | 33.38 November | 4.4× |
| BohumínMoravian-Silesian Region, Czechia | 1 | 54.58 November | 4.4× |
| FriesoytheLower Saxony, Germany | 1 | 30.28 November | 4.4× |
| OstravaMoravian-Silesian Region, Czechia | 1 | 47.18 November | 4.1× |
| Frankfurt am MainHesse, Germany | 1 | 27.68 November | 4.0× |
| EisenhüttenstadtBrandenburg, Germany | 2 | 27.89 November | 4.0× |
| GießenHesse, Germany | 1 | 27.08 November | 3.9× |
| Marburg an der LahnHesse, Germany | 1 | 26.18 November | 3.8× |
| RiedstadtHesse, Germany | 1 | 26.88 November | 3.8× |
| Český TěšínMoravian-Silesian Region, Czechia | 2 | 40.68 November | 3.7× |
| EschbornHesse, Germany | 1 | 25.08 November | 3.7× |
| OranienburgBrandenburg, Germany | 2 | 29.28 November | 3.7× |
| Frankfurt (Oder)Brandenburg, Germany | 1 | 29.19 November | 3.5× |
| ŻywiecSilesia, Poland | 2 | 93.09 November | 3.5× |
| WittenbergSaxony-Anhalt, Germany | 1 | 27.19 November | 3.5× |
| Frýdek-MístekMoravian-Silesian Region, Czechia | 2 | 34.48 November | 3.4× |
| DortmundNorth Rhine-Westphalia, Germany | 1 | 26.09 November | 3.4× |
| Bernau bei BerlinBrandenburg, Germany | 1 | 30.09 November | 3.4× |
| HattersheimHesse, Germany | 1 | 25.98 November | 3.4× |
| HagenNorth Rhine-Westphalia, Germany | 1 | 27.29 November | 3.4× |
| NeuenhagenBrandenburg, Germany | 1 | 25.19 November | 3.2× |
| Königs WusterhausenBrandenburg, Germany | 1 | 26.09 November | 3.2× |
| PilsenPlzeň Region, Czechia | 1 | 29.38 November | 3.2× |
| HavířovMoravian-Silesian Region, Czechia | 1 | 39.98 November | 3.2× |
| SulechówLubusz, Poland | 3 | 39.39 November | 3.1× |
| BrzegOpole Voivodeship, Poland | 2 | 33.98 November | 3.1× |
| LuckenwaldeBrandenburg, Germany | 1 | 25.99 November | 3.0× |
| TřinecMoravian-Silesian Region, Czechia | 1 | 31.88 November | 3.0× |
| SenicaTrnava Region, Slovakia | 1 | 28.711 November | 3.0× |
| GdyniaPomerania, Poland | 1 | 43.68 November | 3.0× |
| Zielona GóraLubusz, Poland | 1 | 42.19 November | 2.9× |
| TeltowBrandenburg, Germany | 2 | 29.18 November | 2.9× |
| ŽilinaŽilina Region, Slovakia | 2 | 35.78 November | 2.8× |
| BerlinState of Berlin, Germany | 2 | 30.09 November | 2.8× |
| GdańskPomerania, Poland | 1 | 34.28 November | 2.7× |
| ZvolenBanská Bystrica Region, Slovakia | 2 | 32.68 November | 2.7× |
| GyálPest County, Hungary | 1 | 26.110 November | 2.6× |
| BudapestBudapest, Hungary | 1 | 26.810 November | 2.6× |
| WormsRheinland-Pfalz, Germany | 1 | 25.58 November | 2.5× |
| WrocławLower Silesia, Poland | 1 | 41.69 November | 2.5× |
| Czechowice-DziedziceSilesia, Poland | 1 | 49.08 November | 2.5× |
| TarnówLesser Poland, Poland | 2 | 32.59 November | 2.5× |
| WinterthurZurich, Switzerland | 1 | 33.59 November | 2.4× |
| OpoleOpole Voivodeship, Poland | 1 | 39.68 November | 2.4× |
| PruszkówMazovia, Poland | 1 | 46.18 November | 2.4× |
| ZamośćLublin, Poland | 1 | 43.05 November | 2.4× |
| Novo MestoUrban Municipality of Novo Mesto, Slovenia | 1 | 35.28 November | 2.3× |
| PtujUrban Municipality of Ptuj, Slovenia | 1 | 28.211 November | 2.3× |
| MartinŽilina Region, Slovakia | 2 | 27.58 November | 2.3× |
| ZagrebZagreb, Croatia | 1 | 55.48 November | 2.3× |
| Kędzierzyn-KoźleOpole Voivodeship, Poland | 1 | 35.98 November | 2.3× |
| Bielsko-BialaSilesia, Poland | 1 | 56.48 November | 2.2× |
| Jastrzębie ZdrójSilesia, Poland | 1 | 48.88 November | 2.2× |
| Gorzów WielkopolskiLubusz, Poland | 2 | 31.68 November | 2.2× |
| SzczecinWest Pomerania, Poland | 1 | 30.78 November | 2.2× |
| KaliszGreater Poland, Poland | 3 | 47.010 November | 2.2× |
| PřerovOlomouc Region, Czechia | 1 | 27.48 November | 2.2× |
| RacibórzSilesia, Poland | 1 | 43.98 November | 2.2× |
| PoznańGreater Poland, Poland | 1 | 38.18 November | 2.1× |
| OlomoucOlomouc Region, Czechia | 1 | 28.88 November | 2.1× |
| BydgoszczKujawsko-Pomorskie, Poland | 1 | 31.18 November | 2.0× |
| GyőrGyőr-Moson-Sopron, Hungary | 1 | 25.68 November | 2.0× |
| ŁaskŁódź Voivodeship, Poland | 1 | 44.410 November | 2.0× |
| ToruńKujawsko-Pomorskie, Poland | 1 | 30.78 November | 2.0× |
Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.
Against other episodes in Poland and Germany
Number 15 of 42 episodes in Poland and Germany since our records began, by cities reached.
- Central Europe, February 2023604
- Central Europe, February and March 2025513
- Central Europe, February 2025503
- Central Europe, January and February 2026498
- Central Europe, March 2025458
- Central Europe, March 2026442
- Central Europe, January 2025383
- Central Europe, March 2026361
- Central Europe, March 2025333
- Central Europe, December 2025 to January 2026170
- Eastern Europe, January 2025123
- Eastern Europe, December 2025118
- Eastern Europe, November 202571
Bars: cities reached; colour: the level of the episode's highest daily reading. All 42.
Use this page
SmogRank, Eastern Europe, November 2025: 71 cities with PM2.5 at twice their usual or more, 8 to 10 November 2025, smogrank.com/episodes/2025-11-eastern-europe (accessed 2 October 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes. Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.