SmogRank / Episodes / Poland
Europe, 28 to 31 January 2024
For 4 days, from 28 to 31 January 2024, 50 cities in Poland, France, Germany and 6 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Czechowice-Dziedzice, Silesia, Poland: 80.3 µg/m³ on 29 January, about 3.2× its usual 25.0.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 50 in 9 countries
Days 4 28 to 31 January 2024
Worst day 30 January 34 cities counted
Furthest above usual 4.1× Nysa
Day by day
Play 30 January 34 cities at twice their usual or more
Wittenberg Luckenwalde Potsdam Kleinmachnow Teltow Bitterfeld-Wolfen Blankenfelde-Mahlow Dessau Brandenburg an der Havel Falkensee Königs Wusterhausen Berlin Lubnjow Altenburg Köthen Neuenhagen Halle (Saale) Bernau bei Berlin Neuruppin Weißenfels Strausberg Burg bei Magdeburg Gera Litvínov Cottbus Greiz Magdeburg Teplice Kadaň Ústí nad Labem Děčín Sokolov Jena Frankfurt (Oder) Eisenhüttenstadt Wittenberge Neubrandenburg Schwedt (Oder) Weimar Halberstadt Saalfeld Marktredwitz Pilsen Beroun Erfurt Hansestadt Salzwedel Bogatynia Żary Sondershausen Güstrow Wernigerode Nordhausen Weiden Szczecin Liberec Mladá Boleslav Schwerin Rostock Braunschweig Zielona Góra Stralsund Coburg Goslar Suhl Mühlhausen Salzgitter Wismar Eisenach Bamberg Meiningen Nuremberg Hildesheim Kelheim Göttingen Lübeck Witzenhausen České Budějovice Hradec Králové Pardubice Hannover Ansbach Náchod Hamburg Kassel Jihlava Kołobrzeg Fulda Halstenbek Kościan Žďár nad Sázavou Wels Traun Ansfelden Kiel Malmö Traunreut Munich Kłodzko Bad Wildungen Rinteln Lauda-Königshofen Salzburg Poznań Augsburg Steyr Itzehoe Wrocław Amstetten Starnberg Aalen Oyten Znojmo Aschaffenburg Marburg an der Lahn Großostheim Saalfelden am Steinernen Meer Bremen Hanau am Main Brno Sankt Pölten Bielefeld Židenice Michelstadt Neu-Ulm Ulm Delmenhorst Heilbronn Frankfurt am Main Wetzlar Warstein Flensburg Eschborn Darmstadt Bremerhaven Ludwigsburg Innsbruck Königstein im Taunus Nakło nad Notecią Klosterneuburg Hattersheim Bensheim Stuttgart Kempten (Allgäu) Biberach an der Riß Soest Filderstadt Riedstadt Perchtoldsdorf Heidelberg Vienna Mödling Wiesloch Osnabrück Oldenburg Netphen Baden Reutlingen Lampertheim Přerov Wiesbaden Kroměříž Opole Mannheim Hodonín Ludwigshafen am Rhein Kalisz Tübingen Limburg an der Lahn Pforzheim Speyer Bydgoszcz Wilhelmshaven Herrenberg Malacky Hranice Opava Wolfsberg Friesoythe Unna Graz Klagenfurt am Wörthersee Eggenstein-Leopoldshafen Zlín Devínska Nová Ves Karlsruhe Senica Münster Lindau Lüdenscheid Friedrichshafen Kędzierzyn-Koźle Schwerte Karlova Ves Strzelce Opolskie Bratislava Valašské Meziříčí Racibórz Pezinok Dortmund Hagen Bolzano Bendorf Koblenz Konstanz Kreuzlingen Baden-Baden Ostrava Datteln Senec Neuwied Bohumín Świecie Kranj Lingen Trnava Kaiserslautern Toruń Frýdek-Místek Wodzisław Śląski Havířov Trenčín Hattingen Villingen-Schwenningen Maribor Wuppertal Jastrzębie Zdrój Karviná Sereď Gelsenkirchen Ljubljana Kalmar Púchov Bonn Essen Český Těšín Trbovlje Cieszyn Celje Trento Gothenburg Leverkusen Třinec Bottrop Ptuj Kehl Köln Enschede Borken Oberhausen Włocławek Łask Ratingen Nitra Sopot Győr Rovereto Katowice Duisburg Düsseldorf Partizánske Čadca Zürich Koper Žilina Novo Mesto Bielsko-Biala Wesel Freiburg Prievidza Kutno Bergheim Zgierz Sondrio Krefeld Łódź Radomsko Saarbrücken Komárno Handlová Jüchen Żywiec Mönchengladbach Groningen Rijeka Forbach Trier Žiar nad Hronom Müllheim Jülich Dillingen Nettetal Płock Lörrach Veszprém Brescia Venlo Bellinzona Banská Bystrica Basel Lecco Bergamo Zvolen Mulhouse Aachen Esztergom Dalmine Venray Lugano Eupen Erba Heerlen Treviglio Como Nijmegen Vimercate Luxembourg Monza Varese Saronno Metz Lodi Bern Milan Esch-sur-Alzette Barneveld Żyrardów Épinal Nancy Liège Lučenec Eindhoven Montbéliard Genk Ans Borgomanero Gyál Flémalle-Haute Dunaújváros Houthalen Vigevano Kielce Novara Hasselt Pécs Olsztyn Poprad Marche-en-Famenne Pruszków Utrecht Mol Tilburg Visby Skarżysko-Kamienna Vercelli Medemblik IJsselstein Maarssen Legionowo Andenne Gyöngyös Vesoul Warsaw Verdun Purmerend Spišská Nová Ves Kristiansand Starachowice Amsterdam Konstancin-Jeziorna Pułtusk Radom Tarnów Aarschot Wawer Breda Badhoevedorp Namur Otwock Aosta Besançon Velserbroek Velsen-Zuid Ridderkerk Liberpolis Kazincbarcika Hillegom Rotterdam Rixensart Mechelen Mielec Zaventem Kapellen Dębica Schiedam Antwerp Miskolc Sallanches Stabroek Saint-Dizier Bardejov Charleroi Jumet Grimbergen Willebroek Spijkenisse Zwijndrecht Brussels The Hague Prešov Jasło Maassluis Beveren 's-Gravenzande Dole Albertville Lons-le-Saunier Krosno Annecy Szeged Mons Dijon Vranov nad Topľou Rzeszów Lochristi Nisko Trebišov Gent Evergem Siedlce Reims Humenné Łuków Chambéry Épernay Novi Sad Chalon-sur-Saône Bourg-en-Bresse Troyes Maldegem Valenciennes Snina Lublin Ełk Waregem Debrecen Tournai Denain Kortrijk Izegem Mâcon Jarosław Roubaix Saint-Quentin Roeselare Menen Villefontaine Przemyśl Meyzieu Douai Montceau-les-Mines Villefranche-sur-Saône Lyon Suwałki Auxerre Lens Białystok Givors Zamość Arras Coulommiers Koksijde Béthune Saint-Chamond Dunkirk Saint-Étienne Creil Fontainebleau Amiens Montargis Nevers Sarcelles Moulins Domont Paris Vichy Étampes Boulogne-sur-Mer Clermont-Ferrand Bourges Rambouillet Norwich Montluçon Cluj-Napoca Orléans Dej Clacton-on-Sea Canterbury Chartres Dreux Dieppe Louviers Rouen Évreux Châteauroux Blois Canvey Island Gillingham Newmarket Grays Dartford Dagenham Bexley Seaford Lisieux Le Havre Joué-lès-Tours London Limoges Brighton Biggleswade Alençon Le Mans Hayes Kingston upon Hull Caen Poitiers Codlea Reading Portsmouth Nottingham Angers Angoulême York Oxford Laval Middlesbrough Niort La Rochelle Annemasse Most Linz Gdynia Jelenia Góra Strasbourg Schwandorf in Bayern Gießen Lunéville Burghausen Sainte-Geneviève-des-Bois Gdańsk Worms Martin Olomouc Augustów Ružomberok Koprivnica Elbląg Košice Riga Ventspils Melun Rüsselsheim am Main Prague Liepāja Kraków Działdowo Passau Gorzów Wielkopolski Bytów Bad Kreuznach Mainz Liptovský Mikuláš Grajewo Ingolstadt Würzburg Tours Thionville Kaunas Lębork Olivet Vilnius Kladno Kościerzyna Czechowice-Dziedzice Beauvais Haguenau Klaipėda Nysa 25 Jan 26 27 28 29 30 31 1 Feb 2 3 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.
How it spread
Melun Melun, 25 January: 5.9 µg/m³ Melun, 26 January: 10.0 µg/m³ Melun, 27 January: 20.6 µg/m³ Melun, 28 January: 28.1 µg/m³, 2.3× its usual 12.3 Melun, 29 January: 20.8 µg/m³ Melun, 30 January: 11.4 µg/m³ Melun, 31 January: 12.9 µg/m³ Melun, 1 February: 11.5 µg/m³ Melun, 2 February: 9.3 µg/m³ Melun, 3 February: 6.7 µg/m³ Lunéville Lunéville, 25 January: 6.3 µg/m³ Lunéville, 26 January: 7.8 µg/m³ Lunéville, 27 January: 20.0 µg/m³ Lunéville, 28 January: 27.7 µg/m³, 2.1× its usual 13.3 Lunéville, 29 January: 24.9 µg/m³ Lunéville, 30 January: 25.9 µg/m³ Lunéville, 31 January: 18.1 µg/m³ Lunéville, 1 February: 11.5 µg/m³ Lunéville, 2 February: 10.3 µg/m³ Lunéville, 3 February: 4.7 µg/m³ Beauvais Beauvais, 25 January: 7.3 µg/m³ Beauvais, 26 January: 9.2 µg/m³ Beauvais, 27 January: 21.8 µg/m³ Beauvais, 28 January: 25.6 µg/m³, 2.9× its usual 8.9 Beauvais, 29 January: 29.4 µg/m³, 3.3× its usual 8.9 Beauvais, 30 January: 7.1 µg/m³ Beauvais, 31 January: 10.0 µg/m³ Beauvais, 1 February: 6.9 µg/m³ Beauvais, 2 February: 11.7 µg/m³ Beauvais, 3 February: 6.2 µg/m³ Olivet Olivet, 25 January: 3.8 µg/m³ Olivet, 26 January: 7.6 µg/m³ Olivet, 27 January: 23.0 µg/m³ Olivet, 28 January: 25.3 µg/m³, 2.9× its usual 8.6 Olivet, 29 January: 8.9 µg/m³ Olivet, 30 January: 8.4 µg/m³ Olivet, 31 January: 15.9 µg/m³ Olivet, 1 February: 9.3 µg/m³ Olivet, 2 February: 7.7 µg/m³ Olivet, 3 February: 6.6 µg/m³ Czechowice-Dziedzice Czechowice-Dziedzice, 25 January: 8.1 µg/m³ Czechowice-Dziedzice, 26 January: 10.8 µg/m³ Czechowice-Dziedzice, 27 January: 9.7 µg/m³ Czechowice-Dziedzice, 28 January: 18.1 µg/m³ Czechowice-Dziedzice, 29 January: 80.3 µg/m³, 3.2× its usual 25.0 Czechowice-Dziedzice, 30 January: 68.6 µg/m³, 2.8× its usual 24.9 Czechowice-Dziedzice, 31 January: 32.3 µg/m³ Czechowice-Dziedzice, 1 February: 20.1 µg/m³ Czechowice-Dziedzice, 2 February: no reading Czechowice-Dziedzice, 3 February: 6.8 µg/m³ Nysa Nysa, 25 January: 6.1 µg/m³ Nysa, 26 January: 11.9 µg/m³ Nysa, 27 January: 6.1 µg/m³ Nysa, 28 January: 15.3 µg/m³ Nysa, 29 January: 80.0 µg/m³, 4.1× its usual 19.4 Nysa, 30 January: 41.5 µg/m³, 2.5× its usual 16.9 Nysa, 31 January: 23.0 µg/m³ Nysa, 1 February: no reading Nysa, 2 February: no reading Nysa, 3 February: no reading Olomouc Olomouc, 25 January: 7.8 µg/m³ Olomouc, 26 January: 10.2 µg/m³ Olomouc, 27 January: 9.2 µg/m³ Olomouc, 28 January: 19.9 µg/m³ Olomouc, 29 January: 42.7 µg/m³, 2.0× its usual 20.9 Olomouc, 30 January: 43.3 µg/m³, 2.1× its usual 20.9 Olomouc, 31 January: 46.5 µg/m³ Olomouc, 1 February: 48.5 µg/m³ Olomouc, 2 February: 9.5 µg/m³ Olomouc, 3 February: 7.3 µg/m³ Jelenia Góra Jelenia Góra, 25 January: 6.6 µg/m³ Jelenia Góra, 26 January: 9.7 µg/m³ Jelenia Góra, 27 January: 7.9 µg/m³ Jelenia Góra, 28 January: 26.1 µg/m³ Jelenia Góra, 29 January: 42.1 µg/m³, 2.0× its usual 20.6 Jelenia Góra, 30 January: 27.4 µg/m³ Jelenia Góra, 31 January: 28.7 µg/m³ Jelenia Góra, 1 February: 14.3 µg/m³ Jelenia Góra, 2 February: no reading Jelenia Góra, 3 February: 4.9 µg/m³ Kladno Kladno, 25 January: 8.1 µg/m³ Kladno, 26 January: 6.0 µg/m³ Kladno, 27 January: 7.4 µg/m³ Kladno, 28 January: 14.1 µg/m³ Kladno, 29 January: 39.1 µg/m³, 3.1× its usual 12.7 Kladno, 30 January: 28.5 µg/m³, 2.3× its usual 12.6 Kladno, 31 January: 43.9 µg/m³ Kladno, 1 February: 5.0 µg/m³ Kladno, 2 February: 5.0 µg/m³ Kladno, 3 February: 5.6 µg/m³ Worms Worms, 25 January: 10.5 µg/m³ Worms, 26 January: 8.6 µg/m³ Worms, 27 January: 12.7 µg/m³ Worms, 28 January: 21.0 µg/m³ Worms, 29 January: 33.3 µg/m³, 2.1× its usual 16.2 Worms, 30 January: 30.8 µg/m³ Worms, 31 January: 12.2 µg/m³ Worms, 1 February: 7.5 µg/m³ Worms, 2 February: 12.6 µg/m³ Worms, 3 February: 4.2 µg/m³ Sainte-Geneviève-de… Sainte-Geneviève-des-Bois, 25 January: 11.4 µg/m³ Sainte-Geneviève-des-Bois, 26 January: 15.5 µg/m³ Sainte-Geneviève-des-Bois, 27 January: 28.0 µg/m³ Sainte-Geneviève-des-Bois, 28 January: 28.6 µg/m³ Sainte-Geneviève-des-Bois, 29 January: 32.0 µg/m³, 2.1× its usual 15.0 Sainte-Geneviève-des-Bois, 30 January: 16.1 µg/m³ Sainte-Geneviève-des-Bois, 31 January: 20.7 µg/m³ Sainte-Geneviève-des-Bois, 1 February: 14.7 µg/m³ Sainte-Geneviève-des-Bois, 2 February: 13.9 µg/m³ Sainte-Geneviève-des-Bois, 3 February: 12.5 µg/m³ Prague Prague, 25 January: 7.2 µg/m³ Prague, 26 January: 7.0 µg/m³ Prague, 27 January: 7.4 µg/m³ Prague, 28 January: 14.3 µg/m³ Prague, 29 January: 30.4 µg/m³, 2.3× its usual 13.1 Prague, 30 January: 25.5 µg/m³ Prague, 31 January: 42.6 µg/m³ Prague, 1 February: 8.9 µg/m³ Prague, 2 February: 6.0 µg/m³ Prague, 3 February: 4.0 µg/m³ Most Most, 25 January: 6.0 µg/m³ Most, 26 January: 9.8 µg/m³ Most, 27 January: no reading Most, 28 January: 13.3 µg/m³ Most, 29 January: 29.5 µg/m³, 2.0× its usual 14.5 Most, 30 January: 20.2 µg/m³ Most, 31 January: 45.4 µg/m³ Most, 1 February: 12.1 µg/m³ Most, 2 February: 5.2 µg/m³ Most, 3 February: 3.9 µg/m³ Thionville Thionville, 25 January: 7.3 µg/m³ Thionville, 26 January: 4.4 µg/m³ Thionville, 27 January: 13.9 µg/m³ Thionville, 28 January: 19.4 µg/m³ Thionville, 29 January: 29.0 µg/m³, 2.8× its usual 10.2 Thionville, 30 January: 22.9 µg/m³ Thionville, 31 January: 4.4 µg/m³ Thionville, 1 February: 5.4 µg/m³ Thionville, 2 February: 9.6 µg/m³ Thionville, 3 February: 2.5 µg/m³ Haguenau Haguenau, 25 January: no reading Haguenau, 26 January: no reading Haguenau, 27 January: no reading Haguenau, 28 January: no reading Haguenau, 29 January: 28.7 µg/m³, 3.5× its usual 8.2 Haguenau, 30 January: no reading Haguenau, 31 January: 19.3 µg/m³ Haguenau, 1 February: 6.8 µg/m³ Haguenau, 2 February: 8.5 µg/m³ Haguenau, 3 February: 2.8 µg/m³ Mainz Mainz, 25 January: 10.5 µg/m³ Mainz, 26 January: 7.0 µg/m³ Mainz, 27 January: 8.4 µg/m³ Mainz, 28 January: 17.9 µg/m³ Mainz, 29 January: 28.5 µg/m³, 2.0× its usual 14.1 Mainz, 30 January: 35.5 µg/m³, 2.5× its usual 14.4 Mainz, 31 January: 9.7 µg/m³ Mainz, 1 February: 7.4 µg/m³ Mainz, 2 February: 8.4 µg/m³ Mainz, 3 February: 3.4 µg/m³ Strasbourg Strasbourg, 25 January: no reading Strasbourg, 26 January: no reading Strasbourg, 27 January: no reading Strasbourg, 28 January: no reading Strasbourg, 29 January: 25.6 µg/m³, 2.1× its usual 12.1 Strasbourg, 30 January: 24.0 µg/m³ Strasbourg, 31 January: 25.1 µg/m³ Strasbourg, 1 February: 15.0 µg/m³ Strasbourg, 2 February: 12.7 µg/m³ Strasbourg, 3 February: 8.4 µg/m³ Annemasse Annemasse, 25 January: 4.4 µg/m³ Annemasse, 26 January: 5.8 µg/m³ Annemasse, 27 January: 11.1 µg/m³ Annemasse, 28 January: 16.3 µg/m³ Annemasse, 29 January: 25.4 µg/m³, 2.0× its usual 12.7 Annemasse, 30 January: 26.0 µg/m³ Annemasse, 31 January: 24.8 µg/m³ Annemasse, 1 February: 26.3 µg/m³ Annemasse, 2 February: 25.2 µg/m³ Annemasse, 3 February: 24.5 µg/m³ Tours Tours, 25 January: 7.0 µg/m³ Tours, 26 January: 8.0 µg/m³ Tours, 27 January: 10.9 µg/m³ Tours, 28 January: 19.0 µg/m³ Tours, 29 January: 25.1 µg/m³, 2.8× its usual 9.1 Tours, 30 January: 16.4 µg/m³ Tours, 31 January: 16.0 µg/m³ Tours, 1 February: 11.6 µg/m³ Tours, 2 February: 12.0 µg/m³ Tours, 3 February: 10.8 µg/m³ Działdowo Działdowo, 25 January: 4.5 µg/m³ Działdowo, 26 January: 31.6 µg/m³ Działdowo, 27 January: 6.9 µg/m³ Działdowo, 28 January: 34.5 µg/m³ Działdowo, 29 January: 59.1 µg/m³ Działdowo, 30 January: 80.1 µg/m³, 2.3× its usual 34.7 Działdowo, 31 January: 45.4 µg/m³ Działdowo, 1 February: 16.1 µg/m³ Działdowo, 2 February: no reading Działdowo, 3 February: 7.6 µg/m³ Koprivnica Koprivnica, 25 January: no reading Koprivnica, 26 January: no reading Koprivnica, 27 January: no reading Koprivnica, 28 January: no reading Koprivnica, 29 January: 57.3 µg/m³ Koprivnica, 30 January: 66.0 µg/m³, 2.1× its usual 30.9 Koprivnica, 31 January: no reading Koprivnica, 1 February: 86.0 µg/m³ Koprivnica, 2 February: 46.5 µg/m³ Koprivnica, 3 February: no reading Kraków Kraków, 25 January: 6.7 µg/m³ Kraków, 26 January: 14.5 µg/m³ Kraków, 27 January: 7.4 µg/m³ Kraków, 28 January: 22.2 µg/m³ Kraków, 29 January: 28.4 µg/m³ Kraków, 30 January: 61.7 µg/m³, 2.3× its usual 27.4 Kraków, 31 January: 52.1 µg/m³ Kraków, 1 February: 39.7 µg/m³ Kraków, 2 February: no reading Kraków, 3 February: 9.1 µg/m³ Lębork Lębork, 25 January: 5.6 µg/m³ Lębork, 26 January: 15.4 µg/m³ Lębork, 27 January: 7.9 µg/m³ Lębork, 28 January: 18.3 µg/m³ Lębork, 29 January: 24.9 µg/m³ Lębork, 30 January: 54.7 µg/m³, 2.8× its usual 19.8 Lębork, 31 January: 19.0 µg/m³ Lębork, 1 February: no reading Lębork, 2 February: no reading Lębork, 3 February: 7.2 µg/m³ Kościerzyna Kościerzyna, 25 January: 4.4 µg/m³ Kościerzyna, 26 January: 11.8 µg/m³ Kościerzyna, 27 January: 6.0 µg/m³ Kościerzyna, 28 January: 20.2 µg/m³ Kościerzyna, 29 January: 34.8 µg/m³ Kościerzyna, 30 January: 54.4 µg/m³, 3.2× its usual 16.8 Kościerzyna, 31 January: 18.5 µg/m³ Kościerzyna, 1 February: 7.5 µg/m³ Kościerzyna, 2 February: no reading Kościerzyna, 3 February: 4.9 µg/m³ Gorzów Wielkopolski Gorzów Wielkopolski, 25 January: 7.1 µg/m³ Gorzów Wielkopolski, 26 January: 12.1 µg/m³ Gorzów Wielkopolski, 27 January: 7.8 µg/m³ Gorzów Wielkopolski, 28 January: 19.2 µg/m³ Gorzów Wielkopolski, 29 January: 33.3 µg/m³ Gorzów Wielkopolski, 30 January: 48.4 µg/m³, 2.4× its usual 20.0 Gorzów Wielkopolski, 31 January: 9.5 µg/m³ Gorzów Wielkopolski, 1 February: 8.3 µg/m³ Gorzów Wielkopolski, 2 February: no reading Gorzów Wielkopolski, 3 February: 4.1 µg/m³ Ružomberok Ružomberok, 25 January: 4.4 µg/m³ Ružomberok, 26 January: 7.0 µg/m³ Ružomberok, 27 January: 3.9 µg/m³ Ružomberok, 28 January: 15.4 µg/m³ Ružomberok, 29 January: 18.1 µg/m³ Ružomberok, 30 January: 47.8 µg/m³, 2.1× its usual 22.4 Ružomberok, 31 January: 50.8 µg/m³ Ružomberok, 1 February: 46.3 µg/m³ Ružomberok, 2 February: 14.6 µg/m³ Ružomberok, 3 February: 15.2 µg/m³ Košice Košice, 25 January: 17.9 µg/m³ Košice, 26 January: 14.0 µg/m³ Košice, 27 January: 10.1 µg/m³ Košice, 28 January: 7.4 µg/m³ Košice, 29 January: 21.4 µg/m³ Košice, 30 January: 46.4 µg/m³, 2.2× its usual 21.4 Košice, 31 January: 41.0 µg/m³ Košice, 1 February: 48.0 µg/m³ Košice, 2 February: 61.6 µg/m³ Košice, 3 February: 26.3 µg/m³ Liptovský Mikuláš Liptovský Mikuláš, 25 January: no reading Liptovský Mikuláš, 26 January: no reading Liptovský Mikuláš, 27 January: no reading Liptovský Mikuláš, 28 January: no reading Liptovský Mikuláš, 29 January: 17.3 µg/m³ Liptovský Mikuláš, 30 January: 41.6 µg/m³, 2.5× its usual 16.5 Liptovský Mikuláš, 31 January: 40.2 µg/m³ Liptovský Mikuláš, 1 February: 39.8 µg/m³ Liptovský Mikuláš, 2 February: 11.1 µg/m³ Liptovský Mikuláš, 3 February: 10.0 µg/m³ Martin Martin, 25 January: 6.6 µg/m³ Martin, 26 January: 14.0 µg/m³ Martin, 27 January: 5.4 µg/m³ Martin, 28 January: 14.0 µg/m³ Martin, 29 January: 30.9 µg/m³ Martin, 30 January: 39.7 µg/m³, 2.1× its usual 18.6 Martin, 31 January: 49.8 µg/m³ Martin, 1 February: 39.1 µg/m³ Martin, 2 February: 13.2 µg/m³ Martin, 3 February: 5.9 µg/m³ Ingolstadt Ingolstadt, 25 January: no reading Ingolstadt, 26 January: no reading Ingolstadt, 27 January: no reading Ingolstadt, 28 January: no reading Ingolstadt, 29 January: 20.2 µg/m³ Ingolstadt, 30 January: 38.0 µg/m³, 2.6× its usual 14.6 Ingolstadt, 31 January: 42.4 µg/m³ Ingolstadt, 1 February: 15.4 µg/m³ Ingolstadt, 2 February: 10.8 µg/m³ Ingolstadt, 3 February: 6.3 µg/m³ Liepāja Liepāja, 25 January: no reading Liepāja, 26 January: no reading Liepāja, 27 January: no reading Liepāja, 28 January: no reading Liepāja, 29 January: 21.5 µg/m³ Liepāja, 30 January: 37.8 µg/m³, 2.3× its usual 16.1 Liepāja, 31 January: 20.1 µg/m³ Liepāja, 1 February: 11.1 µg/m³ Liepāja, 2 February: 17.4 µg/m³ Liepāja, 3 February: 9.7 µg/m³ Grajewo Grajewo, 25 January: 4.1 µg/m³ Grajewo, 26 January: 9.2 µg/m³ Grajewo, 27 January: 16.5 µg/m³ Grajewo, 28 January: 20.1 µg/m³ Grajewo, 29 January: 21.5 µg/m³ Grajewo, 30 January: 37.7 µg/m³, 2.6× its usual 14.7 Grajewo, 31 January: 30.5 µg/m³, 2.1× its usual 14.6 Grajewo, 1 February: 10.3 µg/m³ Grajewo, 2 February: no reading Grajewo, 3 February: 5.8 µg/m³ Elbląg Elbląg, 25 January: 4.4 µg/m³ Elbląg, 26 January: 11.4 µg/m³ Elbląg, 27 January: 7.9 µg/m³ Elbląg, 28 January: 15.2 µg/m³ Elbląg, 29 January: 25.7 µg/m³ Elbląg, 30 January: 37.6 µg/m³, 2.2× its usual 16.8 Elbląg, 31 January: 24.3 µg/m³ Elbląg, 1 February: 10.9 µg/m³ Elbląg, 2 February: no reading Elbląg, 3 February: 9.1 µg/m³ Gdynia Gdynia, 25 January: no reading Gdynia, 26 January: 14.0 µg/m³ Gdynia, 27 January: 6.2 µg/m³ Gdynia, 28 January: 18.7 µg/m³ Gdynia, 29 January: 23.5 µg/m³ Gdynia, 30 January: 35.4 µg/m³, 2.0× its usual 17.3 Gdynia, 31 January: 13.8 µg/m³ Gdynia, 1 February: 11.5 µg/m³ Gdynia, 2 February: no reading Gdynia, 3 February: 5.1 µg/m³ Linz Linz, 25 January: 7.6 µg/m³ Linz, 26 January: 8.6 µg/m³ Linz, 27 January: 7.1 µg/m³ Linz, 28 January: 11.1 µg/m³ Linz, 29 January: 16.1 µg/m³ Linz, 30 January: 35.0 µg/m³, 2.0× its usual 17.3 Linz, 31 January: 37.3 µg/m³ Linz, 1 February: 17.0 µg/m³ Linz, 2 February: 11.0 µg/m³ Linz, 3 February: 4.4 µg/m³ Bad Kreuznach Bad Kreuznach, 25 January: 9.7 µg/m³ Bad Kreuznach, 26 January: 5.6 µg/m³ Bad Kreuznach, 27 January: 9.4 µg/m³ Bad Kreuznach, 28 January: 18.0 µg/m³ Bad Kreuznach, 29 January: 25.0 µg/m³ Bad Kreuznach, 30 January: 34.6 µg/m³, 2.5× its usual 13.6 Bad Kreuznach, 31 January: 12.8 µg/m³ Bad Kreuznach, 1 February: 7.9 µg/m³ Bad Kreuznach, 2 February: 8.8 µg/m³ Bad Kreuznach, 3 February: 2.1 µg/m³ Passau Passau, 25 January: 8.6 µg/m³ Passau, 26 January: 11.4 µg/m³ Passau, 27 January: 8.6 µg/m³ Passau, 28 January: 11.9 µg/m³ Passau, 29 January: 17.9 µg/m³ Passau, 30 January: 33.6 µg/m³, 2.4× its usual 14.2 Passau, 31 January: 36.5 µg/m³ Passau, 1 February: 21.3 µg/m³ Passau, 2 February: 15.9 µg/m³ Passau, 3 February: 7.5 µg/m³ Gdańsk Gdańsk, 25 January: no reading Gdańsk, 26 January: 8.9 µg/m³ Gdańsk, 27 January: 4.7 µg/m³ Gdańsk, 28 January: 9.2 µg/m³ Gdańsk, 29 January: 22.8 µg/m³ Gdańsk, 30 January: 33.3 µg/m³, 2.1× its usual 15.7 Gdańsk, 31 January: 12.6 µg/m³ Gdańsk, 1 February: 8.8 µg/m³ Gdańsk, 2 February: no reading Gdańsk, 3 February: 3.9 µg/m³ Würzburg Würzburg, 25 January: 11.7 µg/m³ Würzburg, 26 January: 6.8 µg/m³ Würzburg, 27 January: 8.9 µg/m³ Würzburg, 28 January: 15.6 µg/m³ Würzburg, 29 January: 19.6 µg/m³ Würzburg, 30 January: 31.8 µg/m³, 2.7× its usual 11.9 Würzburg, 31 January: 16.0 µg/m³ Würzburg, 1 February: 5.2 µg/m³ Würzburg, 2 February: 6.7 µg/m³ Würzburg, 3 February: 3.4 µg/m³ Kaunas Kaunas, 25 January: 3.0 µg/m³ Kaunas, 26 January: 4.5 µg/m³ Kaunas, 27 January: 14.0 µg/m³ Kaunas, 28 January: 16.5 µg/m³ Kaunas, 29 January: 14.2 µg/m³ Kaunas, 30 January: 29.9 µg/m³, 2.7× its usual 11.0 Kaunas, 31 January: 30.6 µg/m³, 2.8× its usual 10.9 Kaunas, 1 February: 8.0 µg/m³ Kaunas, 2 February: 8.3 µg/m³ Kaunas, 3 February: 4.7 µg/m³ Klaipėda Klaipėda, 25 January: 3.1 µg/m³ Klaipėda, 26 January: 4.6 µg/m³ Klaipėda, 27 January: 13.7 µg/m³ Klaipėda, 28 January: no reading Klaipėda, 29 January: no reading Klaipėda, 30 January: 29.4 µg/m³, 3.5× its usual 8.3 Klaipėda, 31 January: 22.1 µg/m³ Klaipėda, 1 February: 9.3 µg/m³ Klaipėda, 2 February: 6.9 µg/m³ Klaipėda, 3 February: no reading Rüsselsheim am Main Rüsselsheim am Main, 25 January: 11.8 µg/m³ Rüsselsheim am Main, 26 January: 6.7 µg/m³ Rüsselsheim am Main, 27 January: 9.9 µg/m³ Rüsselsheim am Main, 28 January: 13.7 µg/m³ Rüsselsheim am Main, 29 January: 21.1 µg/m³ Rüsselsheim am Main, 30 January: 28.7 µg/m³, 2.3× its usual 12.6 Rüsselsheim am Main, 31 January: 13.4 µg/m³ Rüsselsheim am Main, 1 February: 9.7 µg/m³ Rüsselsheim am Main, 2 February: 8.5 µg/m³ Rüsselsheim am Main, 3 February: 3.0 µg/m³ Burghausen Burghausen, 25 January: 9.1 µg/m³ Burghausen, 26 January: 4.2 µg/m³ Burghausen, 27 January: 7.5 µg/m³ Burghausen, 28 January: 11.5 µg/m³ Burghausen, 29 January: 16.2 µg/m³ Burghausen, 30 January: 28.0 µg/m³, 2.1× its usual 13.3 Burghausen, 31 January: 26.3 µg/m³ Burghausen, 1 February: 9.8 µg/m³ Burghausen, 2 February: 7.0 µg/m³ Burghausen, 3 February: 4.7 µg/m³ Bytów Bytów, 25 January: no reading Bytów, 26 January: 10.9 µg/m³ Bytów, 27 January: no reading Bytów, 28 January: no reading Bytów, 29 January: 26.2 µg/m³ Bytów, 30 January: 27.7 µg/m³, 2.5× its usual 11.1 Bytów, 31 January: 10.6 µg/m³ Bytów, 1 February: 5.5 µg/m³ Bytów, 2 February: no reading Bytów, 3 February: no reading Gießen Gießen, 25 January: 15.6 µg/m³ Gießen, 26 January: 7.7 µg/m³ Gießen, 27 January: 10.2 µg/m³ Gießen, 28 January: 13.8 µg/m³ Gießen, 29 January: 19.6 µg/m³ Gießen, 30 January: 27.4 µg/m³, 2.1× its usual 13.0 Gießen, 31 January: 12.7 µg/m³ Gießen, 1 February: 8.8 µg/m³ Gießen, 2 February: 10.8 µg/m³ Gießen, 3 February: 3.7 µg/m³ Ventspils Ventspils, 25 January: 2.6 µg/m³ Ventspils, 26 January: 15.0 µg/m³ Ventspils, 27 January: 16.8 µg/m³ Ventspils, 28 January: 6.7 µg/m³ Ventspils, 29 January: 12.0 µg/m³ Ventspils, 30 January: 26.3 µg/m³, 2.3× its usual 11.2 Ventspils, 31 January: 14.2 µg/m³ Ventspils, 1 February: 5.7 µg/m³ Ventspils, 2 February: 4.3 µg/m³ Ventspils, 3 February: 4.7 µg/m³ Riga Riga, 25 January: 4.7 µg/m³ Riga, 26 January: 6.2 µg/m³ Riga, 27 January: 9.0 µg/m³ Riga, 28 January: 14.0 µg/m³ Riga, 29 January: 11.9 µg/m³ Riga, 30 January: 26.2 µg/m³, 2.3× its usual 11.5 Riga, 31 January: 25.0 µg/m³, 2.2× its usual 11.6 Riga, 1 February: 7.0 µg/m³ Riga, 2 February: 7.4 µg/m³ Riga, 3 February: 5.0 µg/m³ Schwandorf in Bayern Schwandorf in Bayern, 25 January: 9.3 µg/m³ Schwandorf in Bayern, 26 January: 7.8 µg/m³ Schwandorf in Bayern, 27 January: 8.2 µg/m³ Schwandorf in Bayern, 28 January: 14.8 µg/m³ Schwandorf in Bayern, 29 January: 15.6 µg/m³ Schwandorf in Bayern, 30 January: 25.9 µg/m³, 2.1× its usual 12.3 Schwandorf in Bayern, 31 January: 30.5 µg/m³ Schwandorf in Bayern, 1 February: 7.0 µg/m³ Schwandorf in Bayern, 2 February: 7.1 µg/m³ Schwandorf in Bayern, 3 February: 4.1 µg/m³ Augustów Augustów, 25 January: 3.8 µg/m³ Augustów, 26 January: 11.0 µg/m³ Augustów, 27 January: 33.2 µg/m³ Augustów, 28 January: 43.0 µg/m³ Augustów, 29 January: 26.6 µg/m³ Augustów, 30 January: 41.5 µg/m³ Augustów, 31 January: 44.9 µg/m³, 2.1× its usual 21.2 Augustów, 1 February: 17.1 µg/m³ Augustów, 2 February: no reading Augustów, 3 February: 6.9 µg/m³ Vilnius Vilnius, 25 January: 2.3 µg/m³ Vilnius, 26 January: 5.0 µg/m³ Vilnius, 27 January: 7.4 µg/m³ Vilnius, 28 January: 13.0 µg/m³ Vilnius, 29 January: 12.0 µg/m³ Vilnius, 30 January: 22.1 µg/m³ Vilnius, 31 January: 32.1 µg/m³, 3.1× its usual 10.3 Vilnius, 1 February: 7.9 µg/m³ Vilnius, 2 February: 6.7 µg/m³ Vilnius, 3 February: 4.2 µg/m³ 25 Jan 26 27 28 29 30 31 1 Feb 2 3 Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Nysa Opole Voivodeship, Poland 2 29 January 19.4 4.1× Klaipėda Klaipėda County, Lithuania 1 30 January 8.3 3.5× Haguenau Grand Est, France 1 29 January 8.2 3.5× Beauvais Hauts-de-France, France 2 29 January 8.9 3.3× Czechowice-Dziedzice Silesia, Poland 2 29 January 25.0 3.2× Kościerzyna Pomerania, Poland 1 30 January 16.8 3.2× Kladno Central Bohemia, Czechia 2 29 January 12.7 3.1× Vilnius Vilnius, Lithuania 1 31 January 10.3 3.1× Olivet Centre-Val de Loire, France 1 28 January 8.6 2.9× Lębork Pomerania, Poland 1 30 January 19.8 2.8× Kaunas Kaunas, Lithuania 2 31 January 10.9 2.8× Thionville Grand Est, France 1 29 January 10.2 2.8× Tours Centre-Val de Loire, France 1 29 January 9.1 2.8× Würzburg Bavaria, Germany 1 30 January 11.9 2.7× Ingolstadt Bavaria, Germany 1 30 January 14.6 2.6× Grajewo Podlasie, Poland 2 30 January 14.7 2.6× Liptovský Mikuláš Žilina Region, Slovakia 1 30 January 16.5 2.5× Mainz Rheinland-Pfalz, Germany 2 30 January 14.4 2.5× Bad Kreuznach Rheinland-Pfalz, Germany 1 30 January 13.6 2.5× Bytów Pomerania, Poland 1 30 January 11.1 2.5× Gorzów Wielkopolski Lubusz, Poland 1 30 January 20.0 2.4× Passau Bavaria, Germany 1 30 January 14.2 2.4× Działdowo Warmia-Masuria, Poland 1 30 January 34.7 2.3× Kraków Lesser Poland, Poland 1 30 January 27.4 2.3× Liepāja Liepaja, Latvia 1 30 January 16.1 2.3× Prague Prague, Czechia 1 29 January 13.1 2.3× Rüsselsheim am Main Hesse, Germany 1 30 January 12.6 2.3× Melun Île-de-France, France 1 28 January 12.3 2.3× Ventspils Ventspils, Latvia 1 30 January 11.2 2.3× Riga Riga, Latvia 2 30 January 11.5 2.3× Košice Košice Region, Slovakia 1 30 January 21.4 2.2× Elbląg Warmia-Masuria, Poland 1 30 January 16.8 2.2× Koprivnica Koprivnica-Križevci, Croatia 1 30 January 30.9 2.1× Ružomberok Žilina Region, Slovakia 1 30 January 22.4 2.1× Augustów Podlasie, Poland 1 31 January 21.2 2.1× Olomouc Olomouc Region, Czechia 2 30 January 20.9 2.1× Martin Žilina Region, Slovakia 1 30 January 18.6 2.1× Worms Rheinland-Pfalz, Germany 1 29 January 16.2 2.1× Gdańsk Pomerania, Poland 1 30 January 15.7 2.1× Sainte-Geneviève-des-Bois Île-de-France, France 1 29 January 15.0 2.1× Burghausen Bavaria, Germany 1 30 January 13.3 2.1× Lunéville Grand Est, France 1 28 January 13.3 2.1× Gießen Hesse, Germany 1 30 January 13.0 2.1× Schwandorf in Bayern Bavaria, Germany 1 30 January 12.3 2.1× Strasbourg Grand Est, France 1 29 January 12.1 2.1× Jelenia Góra Lower Silesia, Poland 1 29 January 20.6 2.0× Gdynia Pomerania, Poland 1 30 January 17.3 2.0× Linz Upper Austria, Austria 1 30 January 17.3 2.0× Most Ústí nad Labem Region, Czechia 1 29 January 14.5 2.0× Annemasse Auvergne-Rhône-Alpes, France 1 29 January 12.7 2.0×
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 Poland and France
Number 20 of 63 episodes in Poland and France since our records began, by cities reached.
Europe, 28 February to 4 March 2023 279 Europe, December 2025 to January 2026 169 Eastern Europe, October and November 2024 141 Europe, 22 to 23 January 2025 123 Europe, March 2023 121 Eastern Europe, December 2025 118 Western Europe, January 2024 117 Western Europe, December 2024 75 Europe, 8 to 10 November 2025 73 Spain, France and Portugal, February 2023 72 Eastern Europe, January 2026 70 France, The Netherlands and United Kingdom, January 2023 66 Europe, 28 to 31 January 2024 50 Bars: cities reached; colour: the level of the episode's highest daily reading. All 63 .
Use this page SmogRank, Europe, 28 to 31 January 2024: 50 cities with PM2.5 at twice their usual or more, 28 to 31 January 2024, smogrank.com/episodes/2024-01-28-europe (accessed 4 October 2026).
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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.
