Europe, 1 to 12 March 2026
For 12 days, from 1 to 12 March 2026, 444 cities in Germany, Poland, the United Kingdom and 22 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Radomsko, Łódź Voivodeship, Poland: 109.0 µg/m³ on 7 March, about 4.8× its usual 22.8.
Day by day
How it spread
Every city it reached
| City | Days | Highest | Above usual |
|---|---|---|---|
| CambridgeEngland, United Kingdom | 5 | 46.99 March | 9.4× |
| Le HavreNormandy, France | 4 | 69.48 March | 8.9× |
| BeerselFlanders, Belgium | 4 | 55.57 March | 8.3× |
| GothenburgVästra Götaland, Sweden | 3 | 52.19 March | 8.0× |
| MontivilliersNormandy, France | 4 | 54.98 March | 7.7× |
| SouthamptonEngland, United Kingdom | 2 | 43.79 March | 7.4× |
| AndoverEngland, United Kingdom | 1 | 37.09 March | 7.4× |
| HayesEngland, United Kingdom | 2 | 38.19 March | 7.3× |
| OxfordEngland, United Kingdom | 2 | 35.59 March | 7.1× |
| DieppeNormandy, France | 3 | 55.88 March | 6.7× |
| ReadingEngland, United Kingdom | 2 | 36.09 March | 6.7× |
| LilleHauts-de-France, France | 3 | 50.87 March | 6.6× |
| KlaukkalaUusimaa, Finland | 1 | 32.911 March | 6.6× |
| OverijseFlanders, Belgium | 4 | 55.27 March | 6.5× |
| LohjaUusimaa, Finland | 1 | 37.811 March | 6.5× |
| LutonEngland, United Kingdom | 2 | 37.09 March | 6.5× |
| PécsBaranya, Hungary | 4 | 94.74 March | 6.4× |
| Royal Leamington SpaEngland, United Kingdom | 2 | 31.69 March | 6.3× |
| AmiensHauts-de-France, France | 3 | 54.98 March | 6.2× |
| KalmarKalmar, Sweden | 4 | 52.310 March | 6.2× |
| Canvey IslandEngland, United Kingdom | 3 | 36.39 March | 6.2× |
| LahtiPaijat-Hame, Finland | 1 | 31.011 March | 6.2× |
| DenainHauts-de-France, France | 3 | 59.97 March | 6.1× |
| Knokke-HeistFlanders, Belgium | 5 | 46.28 March | 6.1× |
| PortsmouthEngland, United Kingdom | 1 | 37.49 March | 6.1× |
| GillinghamEngland, United Kingdom | 2 | 31.59 March | 6.1× |
| TournaiWallonia, Belgium | 3 | 40.07 March | 6.0× |
| NewmarketEngland, United Kingdom | 1 | 29.95 March | 6.0× |
| WestburyEngland, United Kingdom | 2 | 29.88 March | 6.0× |
| GentFlanders, Belgium | 3 | 52.57 March | 5.9× |
| NorrköpingÖstergötland, Sweden | 2 | 37.610 March | 5.9× |
| ÉvreuxNormandy, France | 2 | 46.28 March | 5.8× |
| DoncasterEngland, United Kingdom | 2 | 33.45 March | 5.8× |
| CopenhagenCapital Region, Denmark | 5 | 59.010 March | 5.7× |
| VantaaUusimaa, Finland | 2 | 33.111 March | 5.7× |
| SeafordEngland, United Kingdom | 1 | 30.49 March | 5.6× |
| RouenNormandy, France | 3 | 52.58 March | 5.5× |
| NottinghamEngland, United Kingdom | 2 | 34.89 March | 5.5× |
| AndenneWallonia, Belgium | 2 | 33.97 March | 5.5× |
| YorkEngland, United Kingdom | 2 | 30.75 March | 5.5× |
| JumetWallonia, Belgium | 1 | 27.47 March | 5.5× |
| AnsWallonia, Belgium | 1 | 27.47 March | 5.5× |
| Newton AbbotEngland, United Kingdom | 1 | 27.35 March | 5.5× |
| MaldegemFlanders, Belgium | 4 | 49.98 March | 5.4× |
| ParisÎle-de-France, France | 3 | 48.08 March | 5.4× |
| BeverenFlanders, Belgium | 3 | 46.88 March | 5.4× |
| Saint-QuentinHauts-de-France, France | 3 | 45.27 March | 5.4× |
| CherbourgNormandy, France | 3 | 36.88 March | 5.4× |
| HelsinkiUusimaa, Finland | 2 | 33.411 March | 5.4× |
| High PeakEngland, United Kingdom | 1 | 27.05 March | 5.4× |
| ValenciennesHauts-de-France, France | 3 | 56.17 March | 5.3× |
| RoubaixHauts-de-France, France | 5 | 51.87 March | 5.3× |
| LouviersNormandy, France | 3 | 49.48 March | 5.3× |
| BeauvaisHauts-de-France, France | 3 | 45.38 March | 5.3× |
| NijmegenGelderland, The Netherlands | 3 | 42.79 March | 5.3× |
| CharleroiWallonia, Belgium | 3 | 40.77 March | 5.3× |
| BredaNorth Brabant, The Netherlands | 4 | 39.39 March | 5.3× |
| CaenNormandy, France | 2 | 35.28 March | 5.3× |
| HeerlenLimburg, The Netherlands | 2 | 31.08 March | 5.3× |
| Clacton-on-SeaEngland, United Kingdom | 3 | 30.75 March | 5.3× |
| NesttunVestland, Norway | 1 | 26.77 March | 5.3× |
| BergenVestland, Norway | 1 | 26.47 March | 5.3× |
| JarosławSubcarpathia, Poland | 3 | 101.07 March | 5.2× |
| EvergemFlanders, Belgium | 5 | 52.28 March | 5.2× |
| LeicesterEngland, United Kingdom | 2 | 37.19 March | 5.2× |
| BarnsleyEngland, United Kingdom | 2 | 30.45 March | 5.2× |
| CannockEngland, United Kingdom | 1 | 29.85 March | 5.2× |
| LappeenrantaSouth Karelia, Finland | 1 | 27.012 March | 5.2× |
| DouaiHauts-de-France, France | 3 | 52.67 March | 5.1× |
| WillebroekFlanders, Belgium | 4 | 43.77 March | 5.1× |
| BrusselsBrussels Capital, Belgium | 4 | 42.67 March | 5.1× |
| Flémalle-HauteWallonia, Belgium | 3 | 30.57 March | 5.1× |
| ÖrebroÖrebro, Sweden | 1 | 26.610 March | 5.1× |
| MonsWallonia, Belgium | 3 | 42.57 March | 5.0× |
| StabroekFlanders, Belgium | 3 | 42.48 March | 5.0× |
| LundSkåne, Sweden | 4 | 42.210 March | 5.0× |
| MalmöSkåne, Sweden | 4 | 40.98 March | 5.0× |
| DomontÎle-de-France, France | 2 | 37.17 March | 5.0× |
| MyyrmäkiUusimaa, Finland | 2 | 34.311 March | 5.0× |
| BristolEngland, United Kingdom | 1 | 28.99 March | 5.0× |
| BéthuneHauts-de-France, France | 4 | 44.78 March | 4.9× |
| RidderkerkSouth Holland, The Netherlands | 5 | 40.09 March | 4.9× |
| AmsterdamNorth Holland, The Netherlands | 4 | 39.89 March | 4.9× |
| UtrechtUtrecht, The Netherlands | 4 | 36.59 March | 4.9× |
| BexleyEngland, United Kingdom | 2 | 33.39 March | 4.9× |
| ChesterfieldEngland, United Kingdom | 2 | 29.19 March | 4.9× |
| RadomskoŁódź Voivodeship, Poland | 6 | 109.07 March | 4.8× |
| EnschedeOverijssel, The Netherlands | 4 | 39.07 March | 4.8× |
| DreuxCentre-Val de Loire, France | 2 | 37.88 March | 4.8× |
| BrightonEngland, United Kingdom | 1 | 35.89 March | 4.8× |
| LeedsEngland, United Kingdom | 3 | 35.65 March | 4.8× |
| DerbyEngland, United Kingdom | 2 | 33.39 March | 4.8× |
| Kingston upon HullEngland, United Kingdom | 2 | 31.15 March | 4.8× |
| LiverpoolEngland, United Kingdom | 1 | 28.55 March | 4.8× |
| Stoke-on-TrentEngland, United Kingdom | 1 | 28.45 March | 4.8× |
| SunderlandEngland, United Kingdom | 1 | 27.75 March | 4.8× |
| ZwijndrechtFlanders, Belgium | 4 | 42.08 March | 4.7× |
| VisbyGotland, Sweden | 4 | 39.811 March | 4.7× |
| ZeitzSaxony-Anhalt, Germany | 5 | 37.010 March | 4.7× |
| SheffieldEngland, United Kingdom | 2 | 29.59 March | 4.7× |
| RotterdamSouth Holland, The Netherlands | 5 | 38.38 March | 4.6× |
| AlbertvilleAuvergne-Rhône-Alpes, France | 1 | 33.06 March | 4.6× |
| BarnstapleEngland, United Kingdom | 2 | 28.05 March | 4.6× |
| NewportWales, United Kingdom | 1 | 28.09 March | 4.6× |
| NorwichEngland, United Kingdom | 2 | 27.86 March | 4.6× |
| WarringtonEngland, United Kingdom | 1 | 25.45 March | 4.6× |
| CreilHauts-de-France, France | 3 | 43.58 March | 4.5× |
| LochristiFlanders, Belgium | 2 | 43.48 March | 4.5× |
| KortrijkFlanders, Belgium | 3 | 42.57 March | 4.5× |
| CalaisHauts-de-France, France | 5 | 40.09 March | 4.5× |
| ZürichZurich, Switzerland | 4 | 37.68 March | 4.5× |
| AarschotFlanders, Belgium | 3 | 37.17 March | 4.5× |
| ChartresCentre-Val de Loire, France | 2 | 37.17 March | 4.5× |
| MontargisCentre-Val de Loire, France | 2 | 36.47 March | 4.5× |
| The HagueSouth Holland, The Netherlands | 6 | 35.19 March | 4.5× |
| ŻaryLubusz, Poland | 8 | 61.77 March | 4.4× |
| MenenFlanders, Belgium | 4 | 45.97 March | 4.4× |
| GrimbergenFlanders, Belgium | 3 | 44.37 March | 4.4× |
| ZaanstadNorth Holland, The Netherlands | 4 | 37.310 March | 4.4× |
| VelserbroekNorth Holland, The Netherlands | 4 | 36.010 March | 4.4× |
| RambouilletÎle-de-France, France | 2 | 35.37 March | 4.4× |
| LiègeWallonia, Belgium | 1 | 30.08 March | 4.4× |
| StendalSaxony-Anhalt, Germany | 4 | 58.47 March | 4.3× |
| StralsundMecklenburg-Vorpommern, Germany | 4 | 46.88 March | 4.3× |
| WittenbergeBrandenburg, Germany | 4 | 40.37 March | 4.3× |
| BarneveldGelderland, The Netherlands | 3 | 35.67 March | 4.3× |
| LinköpingÖstergötland, Sweden | 2 | 35.610 March | 4.3× |
| NamurWallonia, Belgium | 2 | 29.97 March | 4.3× |
| Königstein im TaunusHesse, Germany | 1 | 28.19 March | 4.3× |
| CraiovaDolj, Romania | 4 | 76.04 March | 4.2× |
| DimitrovgradHaskovo, Bulgaria | 6 | 52.61 March | 4.2× |
| WismarMecklenburg-Vorpommern, Germany | 4 | 41.18 March | 4.2× |
| MechelenFlanders, Belgium | 4 | 40.17 March | 4.2× |
| BadhoevedorpNorth Holland, The Netherlands | 4 | 39.38 March | 4.2× |
| AntwerpFlanders, Belgium | 4 | 38.47 March | 4.2× |
| IJsselsteinUtrecht, The Netherlands | 4 | 38.38 March | 4.2× |
| SpijkenisseSouth Holland, The Netherlands | 5 | 38.28 March | 4.2× |
| ZaventemFlanders, Belgium | 3 | 38.27 March | 4.2× |
| BellinzonaTicino, Switzerland | 5 | 36.86 March | 4.2× |
| MaassluisSouth Holland, The Netherlands | 6 | 36.07 March | 4.2× |
| ReimsGrand Est, France | 2 | 35.28 March | 4.2× |
| BernBern, Switzerland | 4 | 32.77 March | 4.2× |
| VenrayLimburg, The Netherlands | 3 | 31.68 March | 4.2× |
| TarnówLesser Poland, Poland | 5 | 80.78 March | 4.1× |
| EłkWarmia-Masuria, Poland | 4 | 64.97 March | 4.1× |
| KrosnoSubcarpathia, Poland | 4 | 48.67 March | 4.1× |
| Boulogne-sur-MerHauts-de-France, France | 4 | 43.17 March | 4.1× |
| HouthalenFlanders, Belgium | 4 | 41.37 March | 4.1× |
| KehlBaden-Wurttemberg, Germany | 3 | 39.98 March | 4.1× |
| Burg bei MagdeburgSaxony-Anhalt, Germany | 5 | 39.410 March | 4.1× |
| Saint HelierSt Helier, Jersey | 2 | 38.58 March | 4.1× |
| RixensartWallonia, Belgium | 2 | 37.97 March | 4.1× |
| FlensburgSchleswig-Holstein, Germany | 4 | 37.19 March | 4.1× |
| MüllheimBaden-Wurttemberg, Germany | 2 | 31.87 March | 4.1× |
| MedemblikNorth Holland, The Netherlands | 1 | 31.310 March | 4.1× |
| AlençonNormandy, France | 2 | 31.28 March | 4.1× |
| LuganoTicino, Switzerland | 5 | 31.010 March | 4.1× |
| ÉtampesÎle-de-France, France | 2 | 29.87 March | 4.1× |
| Gorzów WielkopolskiLubusz, Poland | 7 | 81.57 March | 4.0× |
| HaarlemNorth Holland, The Netherlands | 6 | 56.29 March | 4.0× |
| VentspilsVentspils, Latvia | 5 | 46.711 March | 4.0× |
| RoeselareFlanders, Belgium | 3 | 40.37 March | 4.0× |
| TilburgNorth Brabant, The Netherlands | 4 | 38.27 March | 4.0× |
| HasseltFlanders, Belgium | 3 | 34.58 March | 4.0× |
| BremerhavenBremen, Germany | 4 | 33.410 March | 4.0× |
| MolFlanders, Belgium | 4 | 33.28 March | 4.0× |
| SödertäljeStockholm, Sweden | 3 | 33.211 March | 4.0× |
| GroningenGroningen, The Netherlands | 4 | 31.010 March | 4.0× |
| WiganEngland, United Kingdom | 1 | 27.25 March | 4.0× |
| OtwockMazovia, Poland | 4 | 108.06 March | 3.9× |
| IzegemFlanders, Belgium | 4 | 46.27 March | 3.9× |
| NorthamptonEngland, United Kingdom | 3 | 39.39 March | 3.9× |
| StrausbergBrandenburg, Germany | 3 | 37.68 March | 3.9× |
| EindhovenNorth Brabant, The Netherlands | 4 | 37.57 March | 3.9× |
| KreuzlingenThurgau, Switzerland | 4 | 36.38 March | 3.9× |
| KonstanzBaden-Wurttemberg, Germany | 4 | 36.38 March | 3.9× |
| VenloLimburg, The Netherlands | 4 | 36.27 March | 3.9× |
| NettetalNorth Rhine-Westphalia, Germany | 4 | 36.27 March | 3.9× |
| KapellenFlanders, Belgium | 3 | 35.67 March | 3.9× |
| KielSchleswig-Holstein, Germany | 4 | 34.48 March | 3.9× |
| LudwigsburgBaden-Wurttemberg, Germany | 4 | 33.89 March | 3.9× |
| OlpeNorth Rhine-Westphalia, Germany | 3 | 33.39 March | 3.9× |
| LondonEngland, United Kingdom | 3 | 32.54 March | 3.9× |
| MönchengladbachNorth Rhine-Westphalia, Germany | 2 | 32.17 March | 3.9× |
| KoksijdeFlanders, Belgium | 3 | 30.38 March | 3.9× |
| PoriSatakunta, Finland | 1 | 25.911 March | 3.9× |
| DębicaSubcarpathia, Poland | 3 | 99.48 March | 3.8× |
| StarachowiceŚwiętokrzyskie, Poland | 3 | 79.38 March | 3.8× |
| ZamośćLublin, Poland | 2 | 78.38 March | 3.8× |
| Târgu JiuGorj County, Romania | 6 | 76.92 March | 3.8× |
| BiałystokPodlasie, Poland | 4 | 63.58 March | 3.8× |
| MünsterNorth Rhine-Westphalia, Germany | 4 | 39.18 March | 3.8× |
| 's-GravenzandeSouth Holland, The Netherlands | 6 | 36.310 March | 3.8× |
| DartfordEngland, United Kingdom | 2 | 28.39 March | 3.8× |
| WitzenhausenHesse, Germany | 1 | 27.210 March | 3.8× |
| BloisCentre-Val de Loire, France | 1 | 27.07 March | 3.8× |
| Schwedt (Oder)Brandenburg, Germany | 4 | 44.48 March | 3.7× |
| FriedrichshafenBaden-Wurttemberg, Germany | 5 | 39.77 March | 3.7× |
| Brandenburg an der HavelBrandenburg, Germany | 4 | 37.810 March | 3.7× |
| BorkenNorth Rhine-Westphalia, Germany | 5 | 37.09 March | 3.7× |
| DunkirkHauts-de-France, France | 6 | 36.96 March | 3.7× |
| MaarssenUtrecht, The Netherlands | 4 | 33.710 March | 3.7× |
| ItzehoeSchleswig-Holstein, Germany | 4 | 33.77 March | 3.7× |
| CardiffWales, United Kingdom | 2 | 32.09 March | 3.7× |
| ScunthorpeEngland, United Kingdom | 2 | 29.65 March | 3.7× |
| FreiburgBaden-Wurttemberg, Germany | 1 | 27.87 March | 3.7× |
| RzeszówSubcarpathia, Poland | 3 | 78.68 March | 3.6× |
| DortmundNorth Rhine-Westphalia, Germany | 5 | 39.17 March | 3.6× |
| HannoverLower Saxony, Germany | 3 | 35.28 March | 3.6× |
| PotsdamBrandenburg, Germany | 3 | 35.210 March | 3.6× |
| OberhausenNorth Rhine-Westphalia, Germany | 4 | 34.88 March | 3.6× |
| WeselNorth Rhine-Westphalia, Germany | 2 | 34.17 March | 3.6× |
| Velsen-ZuidNorth Holland, The Netherlands | 3 | 34.010 March | 3.6× |
| LindauBavaria, Germany | 4 | 33.48 March | 3.6× |
| DelmenhorstLower Saxony, Germany | 2 | 33.37 March | 3.6× |
| FriesoytheLower Saxony, Germany | 5 | 32.79 March | 3.6× |
| PlymouthEngland, United Kingdom | 2 | 28.85 March | 3.6× |
| AalenBaden-Wurttemberg, Germany | 1 | 28.89 March | 3.6× |
| HillegomSouth Holland, The Netherlands | 1 | 27.810 March | 3.6× |
| BelgradeCentral Serbia, Serbia | 5 | 83.43 March | 3.5× |
| SuwałkiPodlasie, Poland | 5 | 48.411 March | 3.5× |
| Ludwigshafen am RheinRheinland-Pfalz, Germany | 6 | 45.09 March | 3.5× |
| HamburgHamburg, Germany | 4 | 40.58 March | 3.5× |
| Halle (Saale)Saxony-Anhalt, Germany | 5 | 39.510 March | 3.5× |
| WeißenfelsSaxony-Anhalt, Germany | 5 | 37.310 March | 3.5× |
| LampertheimHesse, Germany | 3 | 36.99 March | 3.5× |
| JüchenNorth Rhine-Westphalia, Germany | 3 | 34.37 March | 3.5× |
| OytenLower Saxony, Germany | 3 | 32.87 March | 3.5× |
| HeidelbergBaden-Wurttemberg, Germany | 3 | 30.39 March | 3.5× |
| LübeckSchleswig-Holstein, Germany | 4 | 29.28 March | 3.5× |
| ManchesterEngland, United Kingdom | 2 | 26.85 March | 3.5× |
| PurmerendNorth Holland, The Netherlands | 2 | 26.010 March | 3.5× |
| MagdeburgSaxony-Anhalt, Germany | 4 | 43.17 March | 3.4× |
| NeubrandenburgMecklenburg-Vorpommern, Germany | 4 | 42.28 March | 3.4× |
| WormsRheinland-Pfalz, Germany | 3 | 41.99 March | 3.4× |
| Bitterfeld-WolfenSaxony-Anhalt, Germany | 4 | 39.710 March | 3.4× |
| StrasbourgGrand Est, France | 4 | 39.68 March | 3.4× |
| RostockMecklenburg-Vorpommern, Germany | 4 | 39.08 March | 3.4× |
| MannheimBaden-Wurttemberg, Germany | 6 | 37.49 March | 3.4× |
| EmdenLower Saxony, Germany | 5 | 35.89 March | 3.4× |
| OsnabrückLower Saxony, Germany | 4 | 35.18 March | 3.4× |
| NeuruppinBrandenburg, Germany | 4 | 35.110 March | 3.4× |
| GüstrowMecklenburg-Vorpommern, Germany | 4 | 34.77 March | 3.4× |
| DuisburgNorth Rhine-Westphalia, Germany | 4 | 33.48 March | 3.4× |
| KarlsruheBaden-Wurttemberg, Germany | 3 | 30.68 March | 3.4× |
| DüsseldorfNorth Rhine-Westphalia, Germany | 3 | 29.19 March | 3.4× |
| BaselBasel-City, Switzerland | 2 | 28.97 March | 3.4× |
| AnnemasseAuvergne-Rhône-Alpes, France | 2 | 27.46 March | 3.4× |
| JasłoSubcarpathia, Poland | 1 | 48.37 March | 3.3× |
| OldenburgLower Saxony, Germany | 5 | 38.77 March | 3.3× |
| SchiedamSouth Holland, The Netherlands | 6 | 36.87 March | 3.3× |
| KrefeldNorth Rhine-Westphalia, Germany | 4 | 34.28 March | 3.3× |
| GelsenkirchenNorth Rhine-Westphalia, Germany | 4 | 33.97 March | 3.3× |
| WarsteinNorth Rhine-Westphalia, Germany | 2 | 31.19 March | 3.3× |
| BirminghamEngland, United Kingdom | 2 | 30.05 March | 3.3× |
| LingenLower Saxony, Germany | 4 | 29.47 March | 3.3× |
| LörrachBaden-Wurttemberg, Germany | 1 | 29.17 March | 3.3× |
| DarmstadtHesse, Germany | 1 | 28.99 March | 3.3× |
| ReutlingenBaden-Wurttemberg, Germany | 2 | 28.89 March | 3.3× |
| WilhelmshavenLower Saxony, Germany | 5 | 28.09 March | 3.3× |
| RennesBrittany, France | 1 | 27.87 March | 3.3× |
| Kempten (Allgäu)Bavaria, Germany | 1 | 27.88 March | 3.3× |
| KöpingVästmanland, Sweden | 1 | 27.610 March | 3.3× |
| Saint-DizierGrand Est, France | 2 | 27.18 March | 3.3× |
| RatingenNorth Rhine-Westphalia, Germany | 1 | 26.09 March | 3.3× |
| HeilbronnBaden-Wurttemberg, Germany | 5 | 36.49 March | 3.2× |
| SchwerinMecklenburg-Vorpommern, Germany | 4 | 36.210 March | 3.2× |
| DattelnNorth Rhine-Westphalia, Germany | 5 | 35.07 March | 3.2× |
| CuxhavenLower Saxony, Germany | 3 | 33.010 March | 3.2× |
| EssenNorth Rhine-Westphalia, Germany | 4 | 31.68 March | 3.2× |
| WiesbadenHesse, Germany | 1 | 31.19 March | 3.2× |
| FilderstadtBaden-Wurttemberg, Germany | 2 | 28.99 March | 3.2× |
| FalkenseeBrandenburg, Germany | 2 | 28.110 March | 3.2× |
| PorsgrunnTelemark, Norway | 1 | 28.07 March | 3.2× |
| KölnNorth Rhine-Westphalia, Germany | 2 | 27.19 March | 3.2× |
| BonnNorth Rhine-Westphalia, Germany | 1 | 25.29 March | 3.2× |
| HattingenNorth Rhine-Westphalia, Germany | 1 | 25.09 March | 3.2× |
| CiechanówMazovia, Poland | 3 | 61.78 March | 3.1× |
| KościerzynaPomerania, Poland | 6 | 56.18 March | 3.1× |
| TimişoaraTimiș County, Romania | 3 | 45.13 March | 3.1× |
| PraguePrague, Czechia | 4 | 41.45 March | 3.1× |
| HalberstadtSaxony-Anhalt, Germany | 4 | 33.88 March | 3.1× |
| Blankenfelde-MahlowBrandenburg, Germany | 4 | 33.810 March | 3.1× |
| LuckenwaldeBrandenburg, Germany | 3 | 33.310 March | 3.1× |
| KoperUrban Municipality of Koper, Slovenia | 2 | 32.69 March | 3.1× |
| BremenBremen, Germany | 3 | 31.87 March | 3.1× |
| BensheimHesse, Germany | 1 | 30.39 March | 3.1× |
| StuttgartBaden-Wurttemberg, Germany | 3 | 30.19 March | 3.1× |
| WieslochBaden-Wurttemberg, Germany | 1 | 29.09 March | 3.1× |
| AltenburgThuringia, Germany | 3 | 28.910 March | 3.1× |
| MunichBavaria, Germany | 2 | 28.48 March | 3.1× |
| Hansestadt SalzwedelSaxony-Anhalt, Germany | 3 | 27.59 March | 3.1× |
| KleinmachnowBrandenburg, Germany | 1 | 27.310 March | 3.1× |
| AachenNorth Rhine-Westphalia, Germany | 1 | 25.57 March | 3.1× |
| CalafatDolj, Romania | 3 | 68.14 March | 3.0× |
| ŘíčanyCentral Bohemia, Czechia | 3 | 60.15 March | 3.0× |
| ToruńKujawsko-Pomorskie, Poland | 4 | 59.18 March | 3.0× |
| SzegedCsongrád, Hungary | 3 | 41.92 March | 3.0× |
| Zielona GóraLubusz, Poland | 5 | 38.78 March | 3.0× |
| ViennaVienna, Austria | 2 | 37.84 March | 3.0× |
| EisenhüttenstadtBrandenburg, Germany | 4 | 37.18 March | 3.0× |
| Bernau bei BerlinBrandenburg, Germany | 4 | 37.18 March | 3.0× |
| BottropNorth Rhine-Westphalia, Germany | 5 | 36.17 March | 3.0× |
| BuxtehudeLower Saxony, Germany | 4 | 33.88 March | 3.0× |
| BielefeldNorth Rhine-Westphalia, Germany | 5 | 33.58 March | 3.0× |
| EschbornHesse, Germany | 2 | 33.59 March | 3.0× |
| NancyGrand Est, France | 3 | 32.97 March | 3.0× |
| NauenBrandenburg, Germany | 4 | 32.07 March | 3.0× |
| UlmBaden-Wurttemberg, Germany | 3 | 30.86 March | 3.0× |
| AugsburgBavaria, Germany | 2 | 30.88 March | 3.0× |
| SchwerteNorth Rhine-Westphalia, Germany | 3 | 29.47 March | 3.0× |
| Lauda-KönigshofenBaden-Wurttemberg, Germany | 1 | 28.59 March | 3.0× |
| SoestNorth Rhine-Westphalia, Germany | 1 | 27.29 March | 3.0× |
| KelheimBavaria, Germany | 1 | 27.29 March | 3.0× |
| WeimarThuringia, Germany | 2 | 26.510 March | 3.0× |
| WuppertalNorth Rhine-Westphalia, Germany | 1 | 26.49 March | 3.0× |
| PodgoricaPodgorica, Montenegro | 3 | 50.34 March | 2.9× |
| GyálPest County, Hungary | 5 | 43.84 March | 2.9× |
| GdańskPomerania, Poland | 5 | 43.411 March | 2.9× |
| ZnojmoSouth Moravian, Czechia | 2 | 42.94 March | 2.9× |
| PerchtoldsdorfLower Austria, Austria | 2 | 34.84 March | 2.9× |
| MödlingLower Austria, Austria | 1 | 34.34 March | 2.9× |
| LunévilleGrand Est, France | 3 | 33.18 March | 2.9× |
| KöthenSaxony-Anhalt, Germany | 4 | 32.38 March | 2.9× |
| Königs WusterhausenBrandenburg, Germany | 2 | 31.310 March | 2.9× |
| OrléansCentre-Val de Loire, France | 2 | 29.57 March | 2.9× |
| HattersheimHesse, Germany | 1 | 29.19 March | 2.9× |
| GießenHesse, Germany | 2 | 28.19 March | 2.9× |
| GyőrGyőr-Moson-Sopron, Hungary | 5 | 47.23 March | 2.8× |
| HaskovoHaskovo, Bulgaria | 2 | 44.21 March | 2.8× |
| TeltowBrandenburg, Germany | 4 | 41.210 March | 2.8× |
| HalstenbekSchleswig-Holstein, Germany | 4 | 38.08 March | 2.8× |
| MainzRheinland-Pfalz, Germany | 2 | 35.29 March | 2.8× |
| IngolstadtBavaria, Germany | 2 | 33.09 March | 2.8× |
| Frankfurt am MainHesse, Germany | 3 | 32.29 March | 2.8× |
| SpeyerRheinland-Pfalz, Germany | 4 | 31.99 March | 2.8× |
| NeuenhagenBrandenburg, Germany | 2 | 31.08 March | 2.8× |
| RigaRiga, Latvia | 2 | 30.68 March | 2.8× |
| WürzburgBavaria, Germany | 1 | 29.68 March | 2.8× |
| BraunschweigLower Saxony, Germany | 2 | 28.28 March | 2.8× |
| LüneburgLower Saxony, Germany | 2 | 27.110 March | 2.8× |
| ErfurtThuringia, Germany | 1 | 25.75 March | 2.8× |
| DoleBourgogne-Franche-Comté, France | 1 | 25.77 March | 2.8× |
| KikindaVojvodina, Serbia | 3 | 86.43 March | 2.7× |
| CodleaBrașov County, Romania | 4 | 51.23 March | 2.7× |
| LiepājaLiepaja, Latvia | 4 | 46.711 March | 2.7× |
| KołobrzegWest Pomerania, Poland | 4 | 43.010 March | 2.7× |
| Devínska Nová VesBratislava Region, Slovakia | 2 | 35.24 March | 2.7× |
| UnnaNorth Rhine-Westphalia, Germany | 4 | 32.37 March | 2.7× |
| CottbusBrandenburg, Germany | 1 | 31.38 March | 2.7× |
| KasselHesse, Germany | 4 | 30.09 March | 2.7× |
| Rüsselsheim am MainHesse, Germany | 1 | 29.39 March | 2.7× |
| RiedstadtHesse, Germany | 1 | 27.79 March | 2.7× |
| KoblenzRheinland-Pfalz, Germany | 1 | 26.19 March | 2.7× |
| LubnjowBrandenburg, Germany | 1 | 26.08 March | 2.7× |
| FredrikstadØstfold, Norway | 1 | 25.37 March | 2.7× |
| FuldaHesse, Germany | 1 | 25.010 March | 2.7× |
| LegionowoMazovia, Poland | 3 | 59.07 March | 2.6× |
| MielecSubcarpathia, Poland | 3 | 57.17 March | 2.6× |
| Novi SadVojvodina, Serbia | 1 | 51.27 March | 2.6× |
| BydgoszczKujawsko-Pomorskie, Poland | 5 | 49.611 March | 2.6× |
| GdyniaPomerania, Poland | 4 | 41.78 March | 2.6× |
| JihlavaVysocina, Czechia | 1 | 36.15 March | 2.6× |
| MostarFederation of B&H, Bosnia and Herzegovina | 1 | 34.84 March | 2.6× |
| VarnaVarna, Bulgaria | 2 | 32.54 March | 2.6× |
| CoulommiersÎle-de-France, France | 3 | 30.27 March | 2.6× |
| WalsrodeLower Saxony, Germany | 1 | 26.710 March | 2.6× |
| NurembergBavaria, Germany | 1 | 25.810 March | 2.6× |
| Schwandorf in BayernBavaria, Germany | 1 | 25.310 March | 2.6× |
| AschaffenburgBavaria, Germany | 1 | 25.16 March | 2.6× |
| TübingenBaden-Wurttemberg, Germany | 1 | 25.19 March | 2.6× |
| RadomMazovia, Poland | 2 | 58.58 March | 2.5× |
| LublinLublin, Poland | 1 | 57.97 March | 2.5× |
| KumanovoKumanovo, North Macedonia | 3 | 54.92 March | 2.5× |
| OhridOhrid, North Macedonia | 1 | 54.94 March | 2.5× |
| SzczecinWest Pomerania, Poland | 3 | 44.810 March | 2.5× |
| BerlinState of Berlin, Germany | 3 | 38.510 March | 2.5× |
| WittenbergSaxony-Anhalt, Germany | 2 | 37.910 March | 2.5× |
| MühlhausenThuringia, Germany | 5 | 31.67 March | 2.5× |
| Frankfurt (Oder)Brandenburg, Germany | 3 | 31.28 March | 2.5× |
| MontbéliardBourgogne-Franche-Comté, France | 2 | 30.27 March | 2.5× |
| Bad KreuznachRheinland-Pfalz, Germany | 2 | 29.69 March | 2.5× |
| GreizThuringia, Germany | 4 | 27.15 March | 2.5× |
| Hanau am MainHesse, Germany | 1 | 27.19 March | 2.5× |
| MulhouseGrand Est, France | 1 | 26.47 March | 2.5× |
| Limburg an der LahnHesse, Germany | 1 | 26.39 March | 2.5× |
| HildesheimLower Saxony, Germany | 1 | 25.78 March | 2.5× |
| Târgu MureşMureș County, Romania | 2 | 94.83 March | 2.4× |
| WłocławekKujawsko-Pomorskie, Poland | 3 | 70.26 March | 2.4× |
| KaliszGreater Poland, Poland | 3 | 68.56 March | 2.4× |
| AugustówPodlasie, Poland | 1 | 48.47 March | 2.4× |
| BufteaIlfov, Romania | 3 | 48.35 March | 2.4× |
| RuseRuse, Bulgaria | 1 | 44.35 March | 2.4× |
| ElblągWarmia-Masuria, Poland | 1 | 43.111 March | 2.4× |
| OranienburgBrandenburg, Germany | 3 | 39.78 March | 2.4× |
| OlsztynWarmia-Masuria, Poland | 2 | 38.58 March | 2.4× |
| KlosterneuburgLower Austria, Austria | 1 | 33.34 March | 2.4× |
| PulheimNorth Rhine-Westphalia, Germany | 1 | 26.27 March | 2.4× |
| ŁaskŁódź Voivodeship, Poland | 2 | 63.26 March | 2.3× |
| KłodzkoLower Silesia, Poland | 2 | 59.88 March | 2.3× |
Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.
Against other episodes in Germany and Poland
Number 7 of 62 episodes in Germany and Poland since our records began, by cities reached.
- Europe, 6 to 25 February 2023608
- Europe, 14 February to 1 March 2025517
- Europe, 1 to 14 February 2025506
- Europe, January and February 2026502
- Germany, Poland and 25 more countries, March 2025463
- Europe, 8 to 27 January 2024449
- Europe, 1 to 12 March 2026444
- Germany, France and 18 more countries, January 2025381
- Europe, 18 to 25 March 2026362
- Europe, March 2025335
- Europe, February and March 2024264
- Europe, November 2024260
Bars: cities reached; colour: the level of the episode's highest daily reading. All 62.
Use this page
SmogRank, Europe, 1 to 12 March 2026: 444 cities with PM2.5 at twice their usual or more, 1 to 12 March 2026, smogrank.com/episodes/2026-03-01-europe (accessed 4 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.