SmogRank / Episodes / Germany

Central Europe, December 2025 to January 2026

For 9 days, from 25 December 2025 to 2 January 2026, 170 cities in Germany, France, Poland and 7 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Kempten (Allgäu), Bavaria, Germany: 110.0 µg/m³ on 1 January, about 9.9× its usual 11.1.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached170in 10 countries
Days925 December 2025 to 2 January 2026
Worst day26 December83 cities counted
Furthest above usual11×Neuwied

Day by day

26 December 83 cities at twice their usual or more
AalenSchwäbisch HallAnsbachFilderstadtLudwigsburgHeilbronnLauda-KönigshofenStarnbergKonstanzWürzburgPforzheimBambergMichelstadtWieslochKelheimWinterthurHeidelbergGroßostheimAschaffenburgKarlsruheEggenstein-LeopoldshafenLandshutLudwigshafen am RheinLampertheimSchwandorf in BayernDarmstadtHanau am MainMeiningenFuldaWormsRiedstadtSuhlWeidenEschbornRüsselsheim am MainHattersheimMarktredwitzKönigstein im TaunusTraunreutMainzEisenachWiesbadenGießenKaiserslauternBurghausenWetzlarBad KreuznachMarburg an der LahnLuganoSaalfelden am Steinernen MeerBad WildungenLimburg an der LahnWitzenhausenSalzburgSondershausenSokolovDuderstadtNetphenKoblenzUslarBendorfSaarbrückenPilsenVölklingenGoslarWarsteinMontbéliardSaint-AvoldDillingenLunévilleSoestLüdenscheidTrierWelsBonnSchwerteNancyTraunMetzLinzAnsfeldenLeverkusenWuppertalThionvilleHattingenLuxembourgPulheimSteyrGoriziaČeské BudějoviceMünsterEsch-sur-AlzetteGelsenkirchenEssenOsnabrückRatingenDüsseldorfWalsrodeBottropHansestadt SalzwedelOberhausenDuisburgJüchenJülichKoperMönchengladbachKrefeldAmstettenEupenKranjAachenOytenBorkenLüneburgWittenbergeWeselBremenDelmenhorstHeerlenNauenLjubljanaKleinmachnowVenloLingenFalkenseeBuxtehudeOldenburgHamburgFriesoytheMarche-en-FamenneNeuruppinAnsHalstenbekFlémalle-HauteVenraySaint-DizierOranienburgGenkBremerhavenTrbovljeBernau bei BerlinLübeckSankt PöltenHasseltHouthalenJihlavaMonacoMeylanAndenneWilhelmshavenItzehoeStrausbergCeljeWismarNiceCuxhavenNovo MestoGüstrowNamurEmdenMariborMolBastiaCannesKielZnojmoAarschotNeubrandenburgRostockTilburgVillefranche-sur-SaônePtujBadenPerchtoldsdorfCharleroiJumetMödlingRixensartOverijseKlosterneuburgSchwedt (Oder)EisenzickenViennaZaventemBredaIJsselsteinMechelenBrusselsGrimbergenBeerselMaarssenZagrebWillebroekAntwerpKapellenBrnoZwijndrechtStabroekStralsundBeverenRidderkerkAmsterdamPurmerendBadhoevedorpMedemblikRotterdamZaanstadBihaćSchiedamSpijkenisseDevínska Nová VesHillegomVelserbroekVelsen-ZuidAix-en-ProvenceMaassluisLochristiBratislavaHodonínGent's-GravenzandeEvergemSalon-de-ProvenceAvignonSaint-QuentinOlomoucTournaiVichySenicaSenecMaldegemPřerovWrocławKortrijkArlesRoubaixIzegemMenenGyőrFontainebleauRoeselareKnokke-HeistSereďClermont-FerrandHraniceBrzegCreilVeszprémKołobrzegTrenčínNitraMontluçonDomontBanja LukaKomárnoKoksijdeOpoleÉtampesBeauvaisRacibórzPartizánskePécsPrievidzaJastrzębie ZdrójAurillacHandlováEsztergomŽilinaTravnikČadcaRodezChâteaurouxDunaújvárosBudapestBloisCzechowice-DziedziceBielsko-BialaBanská BystricaZvolenKatowiceLouviersGyálDieppePerpignanCastresLimogesSarajevoLiptovský MikulášLučenecToruńToursŚwiecieKościerzynaClacton-on-SeaGyöngyösWłocławekZgierzNorwichŁódźKrakówMontaubanToulousePoitiersPérigueuxMontivilliersGillinghamCanvey IslandAlençonPopradSzegedGdańskSeafordDartfordNikšićAngoulêmeKazincbarcikaBexleyPljevljaNewmarketles EscaldesMiskolcCaenBrightonKielceCambridgeLondonElblągNiortBelgradeBijelo PoljeSkarżysko-KamiennaHayesKošiceBardejovLutonStarachowicePruszkówLormontCiechanówDębicaRadomJasłoTimişoaraMielecBordeauxTarbesLegionowoDebrecenVranov nad TopľouKonstancin-JeziornaTrebišovNyíregyházaPortsmouthReadingLourdesOlsztynKrosnoMont-de-MarsanNorthamptonHumennéPauKingston upon HullSouthamptonCherbourgRzeszówOxfordSninaScunthorpeAndoverLeicesterNiskoNottinghamRoyal Leamington SpaDoncasterDerbyYorkChesterfieldJarosławPrzemyślSheffieldLublinWestburyBarnsleyBirminghamLeedsZalăuCannockHigh PeakPamplonaBristolStoke-on-TrentDonostia / San SebastiánHernaniZamośćOriaEłkCheadle HulmeTolosaBaia MareZarautzManchesterCalafatCluj-NapocaTârgu JiuNewportIrlamLorientSighetu MarmaţieiWarringtonCardiffDejWiganAugustówBermeoDurangoSpekeSuwałkiPrestonAmorebietaNewton AbbotLogroñoGasteiz / VitoriaLiverpoolBilbaoGetxoSanturtziLaudio / LlodioCraiovaQuimperSofiaMiranda de EbroBriton FerryPlymouthTârgu MureşBarnstapleSaltashBrestPiteştiSevlievoRomans-sur-IsèreValencePassauKędzierzyn-KoźlePłockŽideniceWarsawKlagenfurt am WörtherseeAnnemasseChambéryMulhouseKutnoŁaskŻywiecHaarlemWawerŻyrardówFrankfurt am MainBellinzonaKaliszRadomskoSulechówOtwockMannheimWolfsbergOlpeNîmesStodůlkyVillefontaineBensheimDunkirkGrenobleParisBydgoszczSzczecinMarseilleRouenMalackyTarnówBerlinTeltowSpeyerStuttgartInnsbruckBaselLyonŘíčanyBourg-en-BresseVannesDattelnKasselStendalMoulinsBarneveldNijmegenNeversHagenMarignaneSchwerinGrazUnnaDouaiAlbertvilleJoué-lès-ToursDortmundCoulommiersValenciennesGreizMühlhausenZielona GóraSaint-ÉtienneIngolstadtEindhovenBoulogne-sur-MerDenainLe HavreNeuenhagenBiałystokHerrenbergThe HagueBernBourgesKehlPardubicePragueEisenhüttenstadtWernigerodePoznańNurembergAuxerreRambouilletStrasbourgHradec KrálovéLiberecAmiensCalaisCottbusFrankfurt (Oder)LuckenwaldeŻaryMeyzieuKölnChartresLilleAltenburgBiberach an der RißEnschedeÉvreuxKłodzkoÉpinalBrandenburg an der HavelDessauJenaUtrechtDreuxHannoverNordhausenPotsdamAugsburgUlmBielefeldLubnjowWolfsburgJelenia GóraWeimarBaden-BadenBlankenfelde-MahlowReimsKönigs WusterhausenFriedrichshafenRintelnWittenbergBitterfeld-WolfenErfurtKöthenBernburgGöttingenVillingen-SchwenningenGroningenMonsFreiburgRennesGeraSalzgitterBurg bei MagdeburgMagdeburgBraunschweigHalle (Saale)TübingenMontargisOrléansHildesheimMerseburgLörrachLindauLiègeZeitzNeu-UlmHalberstadtSaint HelierMüllheimBéthuneReutlingenOlivetGorzów WielkopolskiMunichWeißenfelsZürichKempten (Allgäu)Neuwied
22 Dec2324252627282930311 Jan2345
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

Gorzów WielkopolskiGorzów Wielkopolski, 22 December: 33.3 µg/m³, 2.2× usualGorzów Wielkopolski, 23 December: 19.9 µg/m³, 1.3× usualGorzów Wielkopolski, 24 December: 17.2 µg/m³, 1.1× usualGorzów Wielkopolski, 25 December: 45.0 µg/m³, 2.9× usualGorzów Wielkopolski, 26 December: 95.2 µg/m³, 6.2× usualGorzów Wielkopolski, 27 December: 24.8 µg/m³, 1.6× usualGorzów Wielkopolski, 28 December: 9.2 µg/m³, 0.6× usualGorzów Wielkopolski, 29 December: 12.6 µg/m³, 0.8× usualGorzów Wielkopolski, 30 December: 4.1 µg/m³, 0.3× usualGorzów Wielkopolski, 31 December: 15.4 µg/m³, 1.0× usualGorzów Wielkopolski, 1 January: 35.2 µg/m³, 2.3× usualGorzów Wielkopolski, 2 January: 7.3 µg/m³, 0.5× usualGorzów Wielkopolski, 3 January: 8.6 µg/m³, 0.6× usualGorzów Wielkopolski, 4 January: 14.7 µg/m³, 1.0× usualGorzów Wielkopolski, 5 January: 31.4 µg/m³, 2.1× usualŻaryŻary, 22 December: 29.2 µg/m³, 2.3× usualŻary, 23 December: 24.4 µg/m³, 1.9× usualŻary, 24 December: 20.1 µg/m³, 1.6× usualŻary, 25 December: 36.9 µg/m³, 2.9× usualŻary, 26 December: 42.9 µg/m³, 3.4× usualŻary, 27 December: 31.5 µg/m³, 2.5× usualŻary, 28 December: 8.3 µg/m³, 0.7× usualŻary, 29 December: 13.4 µg/m³, 1.1× usualŻary, 30 December: 3.9 µg/m³, 0.3× usualŻary, 31 December: 5.9 µg/m³, 0.5× usualŻary, 1 January: 15.6 µg/m³, 1.2× usualŻary, 2 January: 13.6 µg/m³, 1.1× usualŻary, 3 January: 7.2 µg/m³, 0.6× usualŻary, 4 January: 7.7 µg/m³, 0.6× usualŻary, 5 January: 16.2 µg/m³, 1.3× usualHaarlemHaarlem, 22 December: 39.0 µg/m³, 2.4× usualHaarlem, 23 December: 31.1 µg/m³, 1.9× usualHaarlem, 24 December: 10.0 µg/m³, 0.6× usualHaarlem, 25 December: 6.3 µg/m³, 0.4× usualHaarlem, 26 December: 34.1 µg/m³, 2.1× usualHaarlem, 27 December: 15.6 µg/m³, 1.0× usualHaarlem, 28 December: 17.0 µg/m³, 1.0× usualHaarlem, 29 December: 3.5 µg/m³, 0.2× usualHaarlem, 30 December: 3.6 µg/m³, 0.2× usualHaarlem, 31 December: 3.1 µg/m³, 0.2× usualHaarlem, 1 January: 5.3 µg/m³, 0.3× usualHaarlem, 2 January: 1.0 µg/m³, 0.1× usualHaarlem, 3 January: 0.8 µg/m³, 0.0× usualHaarlem, 4 January: 0.7 µg/m³, 0.0× usualHaarlem, 5 January: 4.4 µg/m³, 0.3× usualGrenobleGrenoble, 22 December: 28.9 µg/m³, 1.9× usualGrenoble, 23 December: 22.0 µg/m³, 1.5× usualGrenoble, 24 December: 10.9 µg/m³, 0.7× usualGrenoble, 25 December: 12.5 µg/m³, 0.8× usualGrenoble, 26 December: 18.4 µg/m³, 1.2× usualGrenoble, 27 December: 26.0 µg/m³, 1.7× usualGrenoble, 28 December: 25.7 µg/m³, 1.7× usualGrenoble, 29 December: 33.7 µg/m³, 2.2× usualGrenoble, 30 December: 29.4 µg/m³, 1.9× usualGrenoble, 31 December: 23.7 µg/m³, 1.6× usualGrenoble, 1 January: 35.9 µg/m³, 2.4× usualGrenoble, 2 January: 37.9 µg/m³, 2.5× usualGrenoble, 3 January: 35.1 µg/m³, 2.3× usualGrenoble, 4 January: 17.4 µg/m³, 1.2× usualGrenoble, 5 January: 17.6 µg/m³, 1.2× usualSulechówSulechów, 22 December: 35.6 µg/m³, 2.7× usualSulechów, 23 December: 29.9 µg/m³, 2.3× usualSulechów, 24 December: 11.5 µg/m³, 0.9× usualSulechów, 25 December: 24.3 µg/m³, 1.9× usualSulechów, 26 December: 30.7 µg/m³, 2.3× usualSulechów, 27 December: 18.2 µg/m³, 1.4× usualSulechów, 28 December: 6.5 µg/m³, 0.5× usualSulechów, 29 December: 10.2 µg/m³, 0.8× usualSulechów, 30 December: 4.5 µg/m³, 0.3× usualSulechów, 31 December: 9.8 µg/m³, 0.7× usualSulechów, 1 January: 12.6 µg/m³, 1.0× usualSulechów, 2 January: no readingSulechów, 3 January: no readingSulechów, 4 January: no readingSulechów, 5 January: no readingOtwockOtwock, 22 December: 2.1 µg/m³, 0.1× usualOtwock, 23 December: 15.5 µg/m³, 0.6× usualOtwock, 24 December: 33.1 µg/m³, 1.4× usualOtwock, 25 December: 56.1 µg/m³, 2.3× usualOtwock, 26 December: 40.6 µg/m³, 1.7× usualOtwock, 27 December: 20.8 µg/m³, 0.9× usualOtwock, 28 December: 9.1 µg/m³, 0.4× usualOtwock, 29 December: 19.2 µg/m³, 0.8× usualOtwock, 30 December: 9.6 µg/m³, 0.4× usualOtwock, 31 December: 16.0 µg/m³, 0.7× usualOtwock, 1 January: 30.5 µg/m³, 1.3× usualOtwock, 2 January: 11.3 µg/m³, 0.5× usualOtwock, 3 January: 10.2 µg/m³, 0.4× usualOtwock, 4 January: 13.5 µg/m³, 0.6× usualOtwock, 5 January: 55.4 µg/m³, 2.3× usualPoznańPoznań, 22 December: 30.7 µg/m³, 1.8× usualPoznań, 23 December: 18.7 µg/m³, 1.1× usualPoznań, 24 December: 15.4 µg/m³, 0.9× usualPoznań, 25 December: 36.0 µg/m³, 2.2× usualPoznań, 26 December: 54.8 µg/m³, 3.3× usualPoznań, 27 December: 18.1 µg/m³, 1.1× usualPoznań, 28 December: 6.3 µg/m³, 0.4× usualPoznań, 29 December: 12.6 µg/m³, 0.8× usualPoznań, 30 December: 4.6 µg/m³, 0.3× usualPoznań, 31 December: 10.8 µg/m³, 0.7× usualPoznań, 1 January: 19.4 µg/m³, 1.2× usualPoznań, 2 January: 6.5 µg/m³, 0.4× usualPoznań, 3 January: 7.6 µg/m³, 0.5× usualPoznań, 4 January: 10.0 µg/m³, 0.6× usualPoznań, 5 January: 26.7 µg/m³, 1.6× usualBiałystokBiałystok, 22 December: 11.5 µg/m³, 0.7× usualBiałystok, 23 December: 6.7 µg/m³, 0.4× usualBiałystok, 24 December: 20.0 µg/m³, 1.3× usualBiałystok, 25 December: 51.3 µg/m³, 3.2× usualBiałystok, 26 December: 12.8 µg/m³, 0.8× usualBiałystok, 27 December: 5.0 µg/m³, 0.3× usualBiałystok, 28 December: 3.2 µg/m³, 0.2× usualBiałystok, 29 December: 7.7 µg/m³, 0.5× usualBiałystok, 30 December: 3.7 µg/m³, 0.2× usualBiałystok, 31 December: 25.2 µg/m³, 1.6× usualBiałystok, 1 January: 53.7 µg/m³, 3.4× usualBiałystok, 2 January: 10.4 µg/m³, 0.7× usualBiałystok, 3 January: 10.4 µg/m³, 0.7× usualBiałystok, 4 January: 10.1 µg/m³, 0.6× usualBiałystok, 5 January: 26.3 µg/m³, 1.7× usualBernburgBernburg, 22 December: 21.8 µg/m³, 2.2× usualBernburg, 23 December: 16.9 µg/m³, 1.7× usualBernburg, 24 December: 10.9 µg/m³, 1.1× usualBernburg, 25 December: 25.2 µg/m³, 2.5× usualBernburg, 26 December: 40.7 µg/m³, 4.1× usualBernburg, 27 December: 34.6 µg/m³, 3.5× usualBernburg, 28 December: no readingBernburg, 29 December: no readingBernburg, 30 December: 6.3 µg/m³, 0.6× usualBernburg, 31 December: 5.3 µg/m³, 0.5× usualBernburg, 1 January: 12.0 µg/m³, 1.2× usualBernburg, 2 January: 2.6 µg/m³, 0.3× usualBernburg, 3 January: 4.4 µg/m³, 0.4× usualBernburg, 4 January: 5.1 µg/m³, 0.5× usualBernburg, 5 January: 9.6 µg/m³, 1.0× usualWeißenfelsWeißenfels, 22 December: 14.1 µg/m³, 2.4× usualWeißenfels, 23 December: 14.3 µg/m³, 2.4× usualWeißenfels, 24 December: 10.1 µg/m³, 1.7× usualWeißenfels, 25 December: 25.0 µg/m³, 4.2× usualWeißenfels, 26 December: 39.4 µg/m³, 6.7× usualWeißenfels, 27 December: 26.1 µg/m³, 4.4× usualWeißenfels, 28 December: no readingWeißenfels, 29 December: no readingWeißenfels, 30 December: 4.9 µg/m³, 0.8× usualWeißenfels, 31 December: 6.5 µg/m³, 1.1× usualWeißenfels, 1 January: 13.5 µg/m³, 2.3× usualWeißenfels, 2 January: 3.6 µg/m³, 0.6× usualWeißenfels, 3 January: 4.2 µg/m³, 0.7× usualWeißenfels, 4 January: 5.0 µg/m³, 0.8× usualWeißenfels, 5 January: 6.8 µg/m³, 1.2× usualŻyrardówŻyrardów, 22 December: 21.9 µg/m³, 1.2× usualŻyrardów, 23 December: 14.9 µg/m³, 0.8× usualŻyrardów, 24 December: 19.5 µg/m³, 1.1× usualŻyrardów, 25 December: 38.1 µg/m³, 2.1× usualŻyrardów, 26 December: 37.4 µg/m³, 2.0× usualŻyrardów, 27 December: 13.9 µg/m³, 0.8× usualŻyrardów, 28 December: 5.3 µg/m³, 0.3× usualŻyrardów, 29 December: 12.8 µg/m³, 0.7× usualŻyrardów, 30 December: 4.6 µg/m³, 0.3× usualŻyrardów, 31 December: 10.8 µg/m³, 0.6× usualŻyrardów, 1 January: no readingŻyrardów, 2 January: no readingŻyrardów, 3 January: 7.3 µg/m³, 0.4× usualŻyrardów, 4 January: no readingŻyrardów, 5 January: no readingWawerWawer, 22 December: 19.2 µg/m³, 1.1× usualWawer, 23 December: 11.6 µg/m³, 0.7× usualWawer, 24 December: 16.3 µg/m³, 0.9× usualWawer, 25 December: 37.6 µg/m³, 2.1× usualWawer, 26 December: 33.9 µg/m³, 1.9× usualWawer, 27 December: 15.3 µg/m³, 0.9× usualWawer, 28 December: 4.7 µg/m³, 0.3× usualWawer, 29 December: 14.8 µg/m³, 0.8× usualWawer, 30 December: 4.9 µg/m³, 0.3× usualWawer, 31 December: 14.8 µg/m³, 0.8× usualWawer, 1 January: 34.0 µg/m³, 1.9× usualWawer, 2 January: 7.2 µg/m³, 0.4× usualWawer, 3 January: 4.6 µg/m³, 0.3× usualWawer, 4 January: 5.9 µg/m³, 0.3× usualWawer, 5 January: 22.8 µg/m³, 1.3× usualŻywiecŻywiec, 22 December: 40.7 µg/m³, 1.4× usualŻywiec, 23 December: 19.8 µg/m³, 0.7× usualŻywiec, 24 December: 12.0 µg/m³, 0.4× usualŻywiec, 25 December: 22.3 µg/m³, 0.8× usualŻywiec, 26 December: 59.0 µg/m³, 2.1× usualŻywiec, 27 December: 46.5 µg/m³, 1.6× usualŻywiec, 28 December: 15.5 µg/m³, 0.5× usualŻywiec, 29 December: 18.4 µg/m³, 0.6× usualŻywiec, 30 December: 10.7 µg/m³, 0.4× usualŻywiec, 31 December: 11.6 µg/m³, 0.4× usualŻywiec, 1 January: 8.5 µg/m³, 0.3× usualŻywiec, 2 January: 7.4 µg/m³, 0.3× usualŻywiec, 3 January: 6.0 µg/m³, 0.2× usualŻywiec, 4 January: 9.2 µg/m³, 0.3× usualŻywiec, 5 January: 74.6 µg/m³, 2.6× usualKłodzkoKłodzko, 22 December: 29.4 µg/m³, 1.5× usualKłodzko, 23 December: 21.7 µg/m³, 1.1× usualKłodzko, 24 December: 17.3 µg/m³, 0.9× usualKłodzko, 25 December: 25.8 µg/m³, 1.3× usualKłodzko, 26 December: 56.7 µg/m³, 2.9× usualKłodzko, 27 December: 70.8 µg/m³, 3.6× usualKłodzko, 28 December: 24.3 µg/m³, 1.2× usualKłodzko, 29 December: 42.2 µg/m³, 2.2× usualKłodzko, 30 December: 10.2 µg/m³, 0.5× usualKłodzko, 31 December: 20.8 µg/m³, 1.1× usualKłodzko, 1 January: 38.2 µg/m³, 2.0× usualKłodzko, 2 January: 6.6 µg/m³, 0.3× usualKłodzko, 3 January: 7.5 µg/m³, 0.4× usualKłodzko, 4 January: 10.4 µg/m³, 0.5× usualKłodzko, 5 January: 58.6 µg/m³, 3.0× usualRadomskoRadomsko, 22 December: 24.7 µg/m³, 1.1× usualRadomsko, 23 December: 20.9 µg/m³, 0.9× usualRadomsko, 24 December: 17.1 µg/m³, 0.8× usualRadomsko, 25 December: 31.2 µg/m³, 1.4× usualRadomsko, 26 December: 51.3 µg/m³, 2.3× usualRadomsko, 27 December: 25.7 µg/m³, 1.1× usualRadomsko, 28 December: 19.8 µg/m³, 0.9× usualRadomsko, 29 December: 26.4 µg/m³, 1.2× usualRadomsko, 30 December: 19.0 µg/m³, 0.8× usualRadomsko, 31 December: 19.3 µg/m³, 0.9× usualRadomsko, 1 January: 18.2 µg/m³, 0.8× usualRadomsko, 2 January: 9.1 µg/m³, 0.4× usualRadomsko, 3 January: 8.7 µg/m³, 0.4× usualRadomsko, 4 January: 13.4 µg/m³, 0.6× usualRadomsko, 5 January: 70.1 µg/m³, 3.1× usualStodůlkyStodůlky, 22 December: 26.1 µg/m³, 0.9× usualStodůlky, 23 December: 22.2 µg/m³, 0.7× usualStodůlky, 24 December: 23.8 µg/m³, 0.8× usualStodůlky, 25 December: 43.5 µg/m³, 1.5× usualStodůlky, 26 December: 70.0 µg/m³, 2.4× usualStodůlky, 27 December: 59.5 µg/m³, 2.0× usualStodůlky, 28 December: 18.2 µg/m³, 0.6× usualStodůlky, 29 December: 28.8 µg/m³, 1.0× usualStodůlky, 30 December: 1.8 µg/m³, 0.1× usualStodůlky, 31 December: 4.3 µg/m³, 0.1× usualStodůlky, 1 January: 11.4 µg/m³, 0.4× usualStodůlky, 2 January: no readingStodůlky, 3 January: 2.1 µg/m³, 0.1× usualStodůlky, 4 January: 6.7 µg/m³, 0.2× usualStodůlky, 5 January: 29.5 µg/m³, 1.0× usualJelenia GóraJelenia Góra, 22 December: 18.8 µg/m³, 1.2× usualJelenia Góra, 23 December: 13.6 µg/m³, 0.9× usualJelenia Góra, 24 December: 16.9 µg/m³, 1.1× usualJelenia Góra, 25 December: 24.5 µg/m³, 1.5× usualJelenia Góra, 26 December: 62.0 µg/m³, 3.9× usualJelenia Góra, 27 December: 44.8 µg/m³, 2.8× usualJelenia Góra, 28 December: 8.5 µg/m³, 0.5× usualJelenia Góra, 29 December: 15.2 µg/m³, 1.0× usualJelenia Góra, 30 December: 4.9 µg/m³, 0.3× usualJelenia Góra, 31 December: 7.3 µg/m³, 0.5× usualJelenia Góra, 1 January: 6.7 µg/m³, 0.4× usualJelenia Góra, 2 January: 5.4 µg/m³, 0.3× usualJelenia Góra, 3 January: 6.5 µg/m³, 0.4× usualJelenia Góra, 4 January: 8.0 µg/m³, 0.5× usualJelenia Góra, 5 January: 40.0 µg/m³, 2.5× usualŘíčanyŘíčany, 22 December: 20.3 µg/m³, 0.9× usualŘíčany, 23 December: 15.4 µg/m³, 0.7× usualŘíčany, 24 December: 16.3 µg/m³, 0.8× usualŘíčany, 25 December: 33.8 µg/m³, 1.6× usualŘíčany, 26 December: 58.4 µg/m³, 2.7× usualŘíčany, 27 December: no readingŘíčany, 28 December: no readingŘíčany, 29 December: 18.3 µg/m³, 0.8× usualŘíčany, 30 December: 4.0 µg/m³, 0.2× usualŘíčany, 31 December: 4.5 µg/m³, 0.2× usualŘíčany, 1 January: 9.9 µg/m³, 0.5× usualŘíčany, 2 January: 2.9 µg/m³, 0.1× usualŘíčany, 3 January: 3.0 µg/m³, 0.1× usualŘíčany, 4 January: no readingŘíčany, 5 January: 18.9 µg/m³, 0.9× usualŁaskŁask, 22 December: 25.1 µg/m³, 1.1× usualŁask, 23 December: 20.4 µg/m³, 0.9× usualŁask, 24 December: 21.2 µg/m³, 0.9× usualŁask, 25 December: 26.2 µg/m³, 1.1× usualŁask, 26 December: 49.2 µg/m³, 2.1× usualŁask, 27 December: 24.1 µg/m³, 1.0× usualŁask, 28 December: 13.9 µg/m³, 0.6× usualŁask, 29 December: 21.8 µg/m³, 0.9× usualŁask, 30 December: 11.8 µg/m³, 0.5× usualŁask, 31 December: 17.0 µg/m³, 0.7× usualŁask, 1 January: 21.2 µg/m³, 0.9× usualŁask, 2 January: 10.2 µg/m³, 0.4× usualŁask, 3 January: 14.3 µg/m³, 0.6× usualŁask, 4 January: 12.4 µg/m³, 0.5× usualŁask, 5 January: 44.6 µg/m³, 1.9× usualKaliszKalisz, 22 December: 29.7 µg/m³, 1.5× usualKalisz, 23 December: 21.1 µg/m³, 1.0× usualKalisz, 24 December: 18.7 µg/m³, 0.9× usualKalisz, 25 December: 36.0 µg/m³, 1.8× usualKalisz, 26 December: 47.1 µg/m³, 2.3× usualKalisz, 27 December: 24.7 µg/m³, 1.2× usualKalisz, 28 December: 10.4 µg/m³, 0.5× usualKalisz, 29 December: 18.0 µg/m³, 0.9× usualKalisz, 30 December: 9.1 µg/m³, 0.4× usualKalisz, 31 December: 11.8 µg/m³, 0.6× usualKalisz, 1 January: 17.7 µg/m³, 0.9× usualKalisz, 2 January: 8.4 µg/m³, 0.4× usualKalisz, 3 January: 8.9 µg/m³, 0.4× usualKalisz, 4 January: 11.0 µg/m³, 0.5× usualKalisz, 5 January: 42.1 µg/m³, 2.1× usualKutnoKutno, 22 December: 25.0 µg/m³, 1.1× usualKutno, 23 December: 18.5 µg/m³, 0.8× usualKutno, 24 December: 16.2 µg/m³, 0.7× usualKutno, 25 December: 38.4 µg/m³, 1.7× usualKutno, 26 December: 46.0 µg/m³, 2.1× usualKutno, 27 December: 23.5 µg/m³, 1.1× usualKutno, 28 December: 9.4 µg/m³, 0.4× usualKutno, 29 December: 19.4 µg/m³, 0.9× usualKutno, 30 December: 8.3 µg/m³, 0.4× usualKutno, 31 December: 16.0 µg/m³, 0.7× usualKutno, 1 January: 21.3 µg/m³, 1.0× usualKutno, 2 January: 9.5 µg/m³, 0.4× usualKutno, 3 January: 11.2 µg/m³, 0.5× usualKutno, 4 January: 12.2 µg/m³, 0.5× usualKutno, 5 January: 45.0 µg/m³, 2.0× usualMerseburgMerseburg, 22 December: 13.9 µg/m³, 1.5× usualMerseburg, 23 December: 13.9 µg/m³, 1.5× usualMerseburg, 24 December: 9.0 µg/m³, 1.0× usualMerseburg, 25 December: 23.6 µg/m³, 2.6× usualMerseburg, 26 December: 44.6 µg/m³, 4.8× usualMerseburg, 27 December: 28.5 µg/m³, 3.1× usualMerseburg, 28 December: no readingMerseburg, 29 December: no readingMerseburg, 30 December: 5.1 µg/m³, 0.6× usualMerseburg, 31 December: 6.0 µg/m³, 0.7× usualMerseburg, 1 January: 8.9 µg/m³, 1.0× usualMerseburg, 2 January: 4.0 µg/m³, 0.4× usualMerseburg, 3 January: 4.4 µg/m³, 0.5× usualMerseburg, 4 January: 5.7 µg/m³, 0.6× usualMerseburg, 5 January: 6.5 µg/m³, 0.7× usualTarnówTarnów, 22 December: 25.5 µg/m³, 1.6× usualTarnów, 23 December: 22.0 µg/m³, 1.3× usualTarnów, 24 December: 9.1 µg/m³, 0.6× usualTarnów, 25 December: 20.7 µg/m³, 1.3× usualTarnów, 26 December: 41.8 µg/m³, 2.6× usualTarnów, 27 December: 31.2 µg/m³, 1.9× usualTarnów, 28 December: 8.4 µg/m³, 0.5× usualTarnów, 29 December: 13.5 µg/m³, 0.8× usualTarnów, 30 December: 7.7 µg/m³, 0.5× usualTarnów, 31 December: 11.0 µg/m³, 0.7× usualTarnów, 1 January: 18.2 µg/m³, 1.1× usualTarnów, 2 January: 6.9 µg/m³, 0.4× usualTarnów, 3 January: 9.3 µg/m³, 0.6× usualTarnów, 4 January: 11.9 µg/m³, 0.7× usualTarnów, 5 January: 27.9 µg/m³, 1.7× usualWittenbergWittenberg, 22 December: 16.9 µg/m³, 1.7× usualWittenberg, 23 December: 13.5 µg/m³, 1.3× usualWittenberg, 24 December: 8.2 µg/m³, 0.8× usualWittenberg, 25 December: 22.4 µg/m³, 2.2× usualWittenberg, 26 December: 41.7 µg/m³, 4.1× usualWittenberg, 27 December: 31.4 µg/m³, 3.1× usualWittenberg, 28 December: no readingWittenberg, 29 December: no readingWittenberg, 30 December: 4.4 µg/m³, 0.4× usualWittenberg, 31 December: 7.6 µg/m³, 0.7× usualWittenberg, 1 January: 8.3 µg/m³, 0.8× usualWittenberg, 2 January: 2.8 µg/m³, 0.3× usualWittenberg, 3 January: 4.5 µg/m³, 0.4× usualWittenberg, 4 January: 4.4 µg/m³, 0.4× usualWittenberg, 5 January: 11.9 µg/m³, 1.2× usualBéthuneBéthune, 22 December: 18.5 µg/m³, 2.7× usualBéthune, 23 December: 19.4 µg/m³, 2.8× usualBéthune, 24 December: 10.0 µg/m³, 1.4× usualBéthune, 25 December: 11.7 µg/m³, 1.7× usualBéthune, 26 December: 34.1 µg/m³, 4.9× usualBéthune, 27 December: 33.3 µg/m³, 4.8× usualBéthune, 28 December: 27.5 µg/m³, 4.0× usualBéthune, 29 December: 41.1 µg/m³, 6.0× usualBéthune, 30 December: 16.8 µg/m³, 2.4× usualBéthune, 31 December: 15.4 µg/m³, 2.2× usualBéthune, 1 January: 6.0 µg/m³, 0.9× usualBéthune, 2 January: 5.7 µg/m³, 0.8× usualBéthune, 3 January: 6.2 µg/m³, 0.9× usualBéthune, 4 January: 10.2 µg/m³, 1.5× usualBéthune, 5 January: 13.1 µg/m³, 1.9× usualZeitzZeitz, 22 December: 14.0 µg/m³, 1.8× usualZeitz, 23 December: 14.2 µg/m³, 1.8× usualZeitz, 24 December: 10.5 µg/m³, 1.4× usualZeitz, 25 December: 23.7 µg/m³, 3.1× usualZeitz, 26 December: 40.2 µg/m³, 5.2× usualZeitz, 27 December: 30.2 µg/m³, 3.9× usualZeitz, 28 December: no readingZeitz, 29 December: no readingZeitz, 30 December: 5.3 µg/m³, 0.7× usualZeitz, 31 December: 6.5 µg/m³, 0.8× usualZeitz, 1 January: 10.0 µg/m³, 1.3× usualZeitz, 2 January: 4.3 µg/m³, 0.6× usualZeitz, 3 January: 4.5 µg/m³, 0.6× usualZeitz, 4 January: 5.3 µg/m³, 0.7× usualZeitz, 5 January: 7.5 µg/m³, 1.0× usualHradec KrálovéHradec Králové, 22 December: 13.4 µg/m³, 1.2× usualHradec Králové, 23 December: 8.8 µg/m³, 0.8× usualHradec Králové, 24 December: no readingHradec Králové, 25 December: 20.2 µg/m³, 1.7× usualHradec Králové, 26 December: 39.8 µg/m³, 3.4× usualHradec Králové, 27 December: no readingHradec Králové, 28 December: no readingHradec Králové, 29 December: 12.7 µg/m³, 1.1× usualHradec Králové, 30 December: 5.7 µg/m³, 0.5× usualHradec Králové, 31 December: 6.5 µg/m³, 0.6× usualHradec Králové, 1 January: no readingHradec Králové, 2 January: no readingHradec Králové, 3 January: no readingHradec Králové, 4 January: no readingHradec Králové, 5 January: no readingKędzierzyn-KoźleKędzierzyn-Koźle, 22 December: 18.2 µg/m³, 1.0× usualKędzierzyn-Koźle, 23 December: 16.5 µg/m³, 0.9× usualKędzierzyn-Koźle, 24 December: 8.8 µg/m³, 0.5× usualKędzierzyn-Koźle, 25 December: 14.6 µg/m³, 0.8× usualKędzierzyn-Koźle, 26 December: 36.9 µg/m³, 2.0× usualKędzierzyn-Koźle, 27 December: 16.4 µg/m³, 0.9× usualKędzierzyn-Koźle, 28 December: 6.4 µg/m³, 0.3× usualKędzierzyn-Koźle, 29 December: 10.9 µg/m³, 0.6× usualKędzierzyn-Koźle, 30 December: 4.3 µg/m³, 0.2× usualKędzierzyn-Koźle, 31 December: 5.7 µg/m³, 0.3× usualKędzierzyn-Koźle, 1 January: 12.1 µg/m³, 0.7× usualKędzierzyn-Koźle, 2 January: 4.7 µg/m³, 0.3× usualKędzierzyn-Koźle, 3 January: 5.1 µg/m³, 0.3× usualKędzierzyn-Koźle, 4 January: 7.1 µg/m³, 0.4× usualKędzierzyn-Koźle, 5 January: 38.4 µg/m³, 2.1× usualHalle (Saale)Halle (Saale), 22 December: 17.0 µg/m³, 2.0× usualHalle (Saale), 23 December: 14.2 µg/m³, 1.7× usualHalle (Saale), 24 December: 8.7 µg/m³, 1.0× usualHalle (Saale), 25 December: 24.1 µg/m³, 2.9× usualHalle (Saale), 26 December: 37.6 µg/m³, 4.5× usualHalle (Saale), 27 December: 24.6 µg/m³, 2.9× usualHalle (Saale), 28 December: no readingHalle (Saale), 29 December: no readingHalle (Saale), 30 December: 6.2 µg/m³, 0.7× usualHalle (Saale), 31 December: 12.3 µg/m³, 1.5× usualHalle (Saale), 1 January: 13.0 µg/m³, 1.5× usualHalle (Saale), 2 January: 4.2 µg/m³, 0.5× usualHalle (Saale), 3 January: 4.7 µg/m³, 0.6× usualHalle (Saale), 4 January: 5.7 µg/m³, 0.7× usualHalle (Saale), 5 January: 8.0 µg/m³, 1.0× usualPardubicePardubice, 22 December: 8.6 µg/m³, 0.8× usualPardubice, 23 December: 8.5 µg/m³, 0.8× usualPardubice, 24 December: no readingPardubice, 25 December: 19.4 µg/m³, 1.7× usualPardubice, 26 December: 36.9 µg/m³, 3.3× usualPardubice, 27 December: no readingPardubice, 28 December: no readingPardubice, 29 December: 7.2 µg/m³, 0.6× usualPardubice, 30 December: 3.9 µg/m³, 0.4× usualPardubice, 31 December: 4.3 µg/m³, 0.4× usualPardubice, 1 January: no readingPardubice, 2 January: no readingPardubice, 3 January: no readingPardubice, 4 January: no readingPardubice, 5 January: no readingMagdeburgMagdeburg, 22 December: 17.4 µg/m³, 2.1× usualMagdeburg, 23 December: 16.7 µg/m³, 2.0× usualMagdeburg, 24 December: 7.6 µg/m³, 0.9× usualMagdeburg, 25 December: 21.6 µg/m³, 2.6× usualMagdeburg, 26 December: 36.5 µg/m³, 4.4× usualMagdeburg, 27 December: 22.6 µg/m³, 2.7× usualMagdeburg, 28 December: no readingMagdeburg, 29 December: no readingMagdeburg, 30 December: 4.7 µg/m³, 0.6× usualMagdeburg, 31 December: 16.4 µg/m³, 2.0× usualMagdeburg, 1 January: 12.9 µg/m³, 1.6× usualMagdeburg, 2 January: 2.5 µg/m³, 0.3× usualMagdeburg, 3 January: 3.7 µg/m³, 0.4× usualMagdeburg, 4 January: 4.7 µg/m³, 0.6× usualMagdeburg, 5 January: 9.8 µg/m³, 1.2× usualCoulommiersCoulommiers, 22 December: 16.3 µg/m³, 1.4× usualCoulommiers, 23 December: 17.7 µg/m³, 1.6× usualCoulommiers, 24 December: 7.4 µg/m³, 0.6× usualCoulommiers, 25 December: 11.3 µg/m³, 1.0× usualCoulommiers, 26 December: 30.3 µg/m³, 2.7× usualCoulommiers, 27 December: 30.3 µg/m³, 2.7× usualCoulommiers, 28 December: 27.8 µg/m³, 2.4× usualCoulommiers, 29 December: 24.7 µg/m³, 2.2× usualCoulommiers, 30 December: 14.0 µg/m³, 1.2× usualCoulommiers, 31 December: 27.9 µg/m³, 2.4× usualCoulommiers, 1 January: 35.6 µg/m³, 3.1× usualCoulommiers, 2 January: 15.0 µg/m³, 1.3× usualCoulommiers, 3 January: 23.3 µg/m³, 2.0× usualCoulommiers, 4 January: 31.8 µg/m³, 2.8× usualCoulommiers, 5 January: 15.9 µg/m³, 1.4× usualDessauDessau, 22 December: 18.1 µg/m³, 1.8× usualDessau, 23 December: 13.9 µg/m³, 1.4× usualDessau, 24 December: 8.5 µg/m³, 0.9× usualDessau, 25 December: 23.6 µg/m³, 2.4× usualDessau, 26 December: 35.5 µg/m³, 3.6× usualDessau, 27 December: 31.2 µg/m³, 3.2× usualDessau, 28 December: no readingDessau, 29 December: no readingDessau, 30 December: 4.8 µg/m³, 0.5× usualDessau, 31 December: 5.9 µg/m³, 0.6× usualDessau, 1 January: 12.0 µg/m³, 1.2× usualDessau, 2 January: 3.0 µg/m³, 0.3× usualDessau, 3 January: 7.0 µg/m³, 0.7× usualDessau, 4 January: no readingDessau, 5 January: no readingStrasbourgStrasbourg, 22 December: 15.4 µg/m³, 1.2× usualStrasbourg, 23 December: 14.3 µg/m³, 1.1× usualStrasbourg, 24 December: 9.5 µg/m³, 0.7× usualStrasbourg, 25 December: 12.9 µg/m³, 1.0× usualStrasbourg, 26 December: 17.4 µg/m³, 1.3× usualStrasbourg, 27 December: 25.5 µg/m³, 1.9× usualStrasbourg, 28 December: 21.5 µg/m³, 1.6× usualStrasbourg, 29 December: 25.0 µg/m³, 1.9× usualStrasbourg, 30 December: 26.6 µg/m³, 2.0× usualStrasbourg, 31 December: 20.9 µg/m³, 1.6× usualStrasbourg, 1 January: 45.7 µg/m³, 3.4× usualStrasbourg, 2 January: 7.3 µg/m³, 0.5× usualStrasbourg, 3 January: 8.1 µg/m³, 0.6× usualStrasbourg, 4 January: 10.5 µg/m³, 0.8× usualStrasbourg, 5 January: 19.0 µg/m³, 1.4× usualRennesRennes, 22 December: 4.1 µg/m³, 0.5× usualRennes, 23 December: 12.6 µg/m³, 1.5× usualRennes, 24 December: 11.8 µg/m³, 1.4× usualRennes, 25 December: 12.2 µg/m³, 1.4× usualRennes, 26 December: 23.5 µg/m³, 2.7× usualRennes, 27 December: 27.5 µg/m³, 3.2× usualRennes, 28 December: 21.4 µg/m³, 2.5× usualRennes, 29 December: 19.0 µg/m³, 2.2× usualRennes, 30 December: 9.4 µg/m³, 1.1× usualRennes, 31 December: 16.1 µg/m³, 1.9× usualRennes, 1 January: 37.1 µg/m³, 4.3× usualRennes, 2 January: 10.0 µg/m³, 1.2× usualRennes, 3 January: 22.7 µg/m³, 2.6× usualRennes, 4 January: 26.0 µg/m³, 3.0× usualRennes, 5 January: 12.9 µg/m³, 1.5× usualLyonLyon, 22 December: 15.4 µg/m³, 1.1× usualLyon, 23 December: 18.0 µg/m³, 1.3× usualLyon, 24 December: 14.0 µg/m³, 1.0× usualLyon, 25 December: 12.0 µg/m³, 0.9× usualLyon, 26 December: 25.1 µg/m³, 1.9× usualLyon, 27 December: 26.5 µg/m³, 2.0× usualLyon, 28 December: 20.7 µg/m³, 1.5× usualLyon, 29 December: 29.4 µg/m³, 2.2× usualLyon, 30 December: 19.0 µg/m³, 1.4× usualLyon, 31 December: 12.1 µg/m³, 0.9× usualLyon, 1 January: 35.2 µg/m³, 2.6× usualLyon, 2 January: 36.7 µg/m³, 2.7× usualLyon, 3 January: 19.2 µg/m³, 1.4× usualLyon, 4 January: 7.3 µg/m³, 0.5× usualLyon, 5 January: 8.9 µg/m³, 0.7× usualKehlKehl, 22 December: 14.2 µg/m³, 1.3× usualKehl, 23 December: 13.8 µg/m³, 1.2× usualKehl, 24 December: 8.8 µg/m³, 0.8× usualKehl, 25 December: 12.0 µg/m³, 1.1× usualKehl, 26 December: 17.5 µg/m³, 1.6× usualKehl, 27 December: 28.0 µg/m³, 2.5× usualKehl, 28 December: 22.9 µg/m³, 2.1× usualKehl, 29 December: 25.8 µg/m³, 2.3× usualKehl, 30 December: 23.4 µg/m³, 2.1× usualKehl, 31 December: 18.5 µg/m³, 1.7× usualKehl, 1 January: 36.1 µg/m³, 3.3× usualKehl, 2 January: 7.0 µg/m³, 0.6× usualKehl, 3 January: 7.2 µg/m³, 0.6× usualKehl, 4 January: 9.1 µg/m³, 0.8× usualKehl, 5 January: 19.2 µg/m³, 1.7× usualNeuwiedNeuwied, 22 December: 14.3 µg/m³, 1.7× usualNeuwied, 23 December: 9.6 µg/m³, 1.1× usualNeuwied, 24 December: 7.0 µg/m³, 0.8× usualNeuwied, 25 December: 10.5 µg/m³, 1.3× usualNeuwied, 26 December: 22.5 µg/m³, 2.7× usualNeuwied, 27 December: 24.7 µg/m³, 2.9× usualNeuwied, 28 December: 28.9 µg/m³, 3.4× usualNeuwied, 29 December: 24.8 µg/m³, 3.0× usualNeuwied, 30 December: 24.4 µg/m³, 2.9× usualNeuwied, 31 December: 28.8 µg/m³, 3.4× usualNeuwied, 1 January: 94.3 µg/m³, 11× usualNeuwied, 2 January: 9.2 µg/m³, 1.1× usualNeuwied, 3 January: 6.5 µg/m³, 0.8× usualNeuwied, 4 January: 7.9 µg/m³, 0.9× usualNeuwied, 5 January: 12.0 µg/m³, 1.4× usualReutlingenReutlingen, 22 December: 15.6 µg/m³, 1.6× usualReutlingen, 23 December: 13.6 µg/m³, 1.4× usualReutlingen, 24 December: 8.3 µg/m³, 0.8× usualReutlingen, 25 December: 12.6 µg/m³, 1.3× usualReutlingen, 26 December: 17.2 µg/m³, 1.7× usualReutlingen, 27 December: 23.4 µg/m³, 2.4× usualReutlingen, 28 December: 31.2 µg/m³, 3.2× usualReutlingen, 29 December: 29.4 µg/m³, 3.0× usualReutlingen, 30 December: 17.4 µg/m³, 1.8× usualReutlingen, 31 December: 21.8 µg/m³, 2.2× usualReutlingen, 1 January: 60.2 µg/m³, 6.1× usualReutlingen, 2 January: 3.0 µg/m³, 0.3× usualReutlingen, 3 January: 4.3 µg/m³, 0.4× usualReutlingen, 4 January: 6.6 µg/m³, 0.7× usualReutlingen, 5 January: 12.0 µg/m³, 1.2× usualTübingenTübingen, 22 December: 16.2 µg/m³, 1.3× usualTübingen, 23 December: 17.1 µg/m³, 1.4× usualTübingen, 24 December: 8.7 µg/m³, 0.7× usualTübingen, 25 December: 13.8 µg/m³, 1.1× usualTübingen, 26 December: 18.2 µg/m³, 1.5× usualTübingen, 27 December: 22.4 µg/m³, 1.8× usualTübingen, 28 December: 30.3 µg/m³, 2.5× usualTübingen, 29 December: 31.1 µg/m³, 2.5× usualTübingen, 30 December: 19.3 µg/m³, 1.6× usualTübingen, 31 December: 27.5 µg/m³, 2.2× usualTübingen, 1 January: 56.1 µg/m³, 4.6× usualTübingen, 2 January: 6.2 µg/m³, 0.5× usualTübingen, 3 January: 7.3 µg/m³, 0.6× usualTübingen, 4 January: 15.0 µg/m³, 1.2× usualTübingen, 5 January: 24.3 µg/m³, 2.0× usualOrléansOrléans, 22 December: 8.3 µg/m³, 1.0× usualOrléans, 23 December: 20.9 µg/m³, 2.5× usualOrléans, 24 December: 7.7 µg/m³, 0.9× usualOrléans, 25 December: 10.7 µg/m³, 1.3× usualOrléans, 26 December: 21.2 µg/m³, 2.5× usualOrléans, 27 December: 24.9 µg/m³, 3.0× usualOrléans, 28 December: 21.5 µg/m³, 2.6× usualOrléans, 29 December: 26.4 µg/m³, 3.1× usualOrléans, 30 December: 11.0 µg/m³, 1.3× usualOrléans, 31 December: 22.8 µg/m³, 2.7× usualOrléans, 1 January: 40.2 µg/m³, 4.8× usualOrléans, 2 January: 16.8 µg/m³, 2.0× usualOrléans, 3 January: 22.5 µg/m³, 2.7× usualOrléans, 4 January: 32.2 µg/m³, 3.8× usualOrléans, 5 January: 15.3 µg/m³, 1.8× usualLörrachLörrach, 22 December: 13.0 µg/m³, 1.3× usualLörrach, 23 December: 13.1 µg/m³, 1.3× usualLörrach, 24 December: 7.7 µg/m³, 0.7× usualLörrach, 25 December: 10.4 µg/m³, 1.0× usualLörrach, 26 December: 16.5 µg/m³, 1.6× usualLörrach, 27 December: 18.4 µg/m³, 1.8× usualLörrach, 28 December: 23.5 µg/m³, 2.3× usualLörrach, 29 December: 22.2 µg/m³, 2.2× usualLörrach, 30 December: 25.7 µg/m³, 2.5× usualLörrach, 31 December: 16.6 µg/m³, 1.6× usualLörrach, 1 January: 52.5 µg/m³, 5.1× usualLörrach, 2 January: 7.1 µg/m³, 0.7× usualLörrach, 3 January: 6.1 µg/m³, 0.6× usualLörrach, 4 January: 9.6 µg/m³, 0.9× usualLörrach, 5 January: 10.0 µg/m³, 1.0× usualMüllheimMüllheim, 22 December: 9.6 µg/m³, 1.3× usualMüllheim, 23 December: 8.8 µg/m³, 1.2× usualMüllheim, 24 December: 6.3 µg/m³, 0.9× usualMüllheim, 25 December: 10.4 µg/m³, 1.4× usualMüllheim, 26 December: 17.9 µg/m³, 2.5× usualMüllheim, 27 December: 17.6 µg/m³, 2.4× usualMüllheim, 28 December: 18.6 µg/m³, 2.6× usualMüllheim, 29 December: 24.9 µg/m³, 3.5× usualMüllheim, 30 December: 24.1 µg/m³, 3.3× usualMüllheim, 31 December: 26.9 µg/m³, 3.7× usualMüllheim, 1 January: 43.1 µg/m³, 6.0× usualMüllheim, 2 January: 5.4 µg/m³, 0.8× usualMüllheim, 3 January: 9.3 µg/m³, 1.3× usualMüllheim, 4 January: 9.0 µg/m³, 1.3× usualMüllheim, 5 January: 11.2 µg/m³, 1.6× usualBellinzonaBellinzona, 22 December: 26.4 µg/m³, 1.7× usualBellinzona, 23 December: 11.4 µg/m³, 0.8× usualBellinzona, 24 December: 8.2 µg/m³, 0.5× usualBellinzona, 25 December: 6.3 µg/m³, 0.4× usualBellinzona, 26 December: 12.8 µg/m³, 0.8× usualBellinzona, 27 December: 9.3 µg/m³, 0.6× usualBellinzona, 28 December: 11.6 µg/m³, 0.8× usualBellinzona, 29 December: 16.1 µg/m³, 1.1× usualBellinzona, 30 December: 26.4 µg/m³, 1.7× usualBellinzona, 31 December: 35.7 µg/m³, 2.3× usualBellinzona, 1 January: 33.5 µg/m³, 2.2× usualBellinzona, 2 January: 22.1 µg/m³, 1.5× usualBellinzona, 3 January: 14.1 µg/m³, 0.9× usualBellinzona, 4 January: 9.2 µg/m³, 0.6× usualBellinzona, 5 January: 19.5 µg/m³, 1.3× usualKempten (Allgäu)Kempten (Allgäu), 22 December: 18.4 µg/m³, 1.7× usualKempten (Allgäu), 23 December: 12.7 µg/m³, 1.1× usualKempten (Allgäu), 24 December: 4.4 µg/m³, 0.4× usualKempten (Allgäu), 25 December: 9.3 µg/m³, 0.8× usualKempten (Allgäu), 26 December: 11.3 µg/m³, 1.0× usualKempten (Allgäu), 27 December: 17.7 µg/m³, 1.6× usualKempten (Allgäu), 28 December: 15.5 µg/m³, 1.4× usualKempten (Allgäu), 29 December: 17.7 µg/m³, 1.6× usualKempten (Allgäu), 30 December: 15.0 µg/m³, 1.4× usualKempten (Allgäu), 31 December: 18.1 µg/m³, 1.6× usualKempten (Allgäu), 1 January: 110.0 µg/m³, 9.9× usualKempten (Allgäu), 2 January: 5.5 µg/m³, 0.5× usualKempten (Allgäu), 3 January: 4.4 µg/m³, 0.4× usualKempten (Allgäu), 4 January: 13.0 µg/m³, 1.2× usualKempten (Allgäu), 5 January: 14.7 µg/m³, 1.3× usualZürichZürich, 22 December: 10.8 µg/m³, 1.2× usualZürich, 23 December: 12.4 µg/m³, 1.3× usualZürich, 24 December: 7.5 µg/m³, 0.8× usualZürich, 25 December: 10.0 µg/m³, 1.1× usualZürich, 26 December: 14.9 µg/m³, 1.6× usualZürich, 27 December: 17.3 µg/m³, 1.9× usualZürich, 28 December: 16.1 µg/m³, 1.7× usualZürich, 29 December: 19.7 µg/m³, 2.1× usualZürich, 30 December: 16.1 µg/m³, 1.7× usualZürich, 31 December: 12.9 µg/m³, 1.4× usualZürich, 1 January: 69.4 µg/m³, 7.5× usualZürich, 2 January: 6.8 µg/m³, 0.7× usualZürich, 3 January: 4.8 µg/m³, 0.5× usualZürich, 4 January: 8.0 µg/m³, 0.9× usualZürich, 5 January: 12.2 µg/m³, 1.3× usualGrazGraz, 22 December: 17.3 µg/m³, 0.8× usualGraz, 23 December: 13.3 µg/m³, 0.6× usualGraz, 24 December: 10.0 µg/m³, 0.4× usualGraz, 25 December: 15.2 µg/m³, 0.7× usualGraz, 26 December: 21.3 µg/m³, 0.9× usualGraz, 27 December: 19.3 µg/m³, 0.9× usualGraz, 28 December: 24.0 µg/m³, 1.1× usualGraz, 29 December: 28.4 µg/m³, 1.3× usualGraz, 30 December: 23.0 µg/m³, 1.0× usualGraz, 31 December: 23.6 µg/m³, 1.0× usualGraz, 1 January: 68.5 µg/m³, 3.0× usualGraz, 2 January: 25.2 µg/m³, 1.1× usualGraz, 3 January: 23.3 µg/m³, 1.0× usualGraz, 4 January: 20.1 µg/m³, 0.9× usualGraz, 5 January: 18.7 µg/m³, 0.8× usualLindauLindau, 22 December: 14.0 µg/m³, 1.2× usualLindau, 23 December: 10.9 µg/m³, 0.9× usualLindau, 24 December: 5.2 µg/m³, 0.4× usualLindau, 25 December: 8.8 µg/m³, 0.8× usualLindau, 26 December: 11.9 µg/m³, 1.0× usualLindau, 27 December: 17.3 µg/m³, 1.5× usualLindau, 28 December: 17.7 µg/m³, 1.5× usualLindau, 29 December: 21.6 µg/m³, 1.9× usualLindau, 30 December: 14.7 µg/m³, 1.3× usualLindau, 31 December: 20.0 µg/m³, 1.7× usualLindau, 1 January: 60.6 µg/m³, 5.2× usualLindau, 2 January: 7.3 µg/m³, 0.6× usualLindau, 3 January: 3.3 µg/m³, 0.3× usualLindau, 4 January: 9.5 µg/m³, 0.8× usualLindau, 5 January: 19.0 µg/m³, 1.6× usualMunichMunich, 22 December: 11.0 µg/m³, 1.2× usualMunich, 23 December: 13.5 µg/m³, 1.5× usualMunich, 24 December: 5.9 µg/m³, 0.6× usualMunich, 25 December: 10.8 µg/m³, 1.2× usualMunich, 26 December: 13.5 µg/m³, 1.5× usualMunich, 27 December: 17.0 µg/m³, 1.9× usualMunich, 28 December: 11.7 µg/m³, 1.3× usualMunich, 29 December: 15.4 µg/m³, 1.7× usualMunich, 30 December: 10.5 µg/m³, 1.2× usualMunich, 31 December: 8.3 µg/m³, 0.9× usualMunich, 1 January: 59.6 µg/m³, 6.5× usualMunich, 2 January: 4.6 µg/m³, 0.5× usualMunich, 3 January: 3.1 µg/m³, 0.3× usualMunich, 4 January: 6.6 µg/m³, 0.7× usualMunich, 5 January: 14.4 µg/m³, 1.6× usualNeu-UlmNeu-Ulm, 22 December: 12.4 µg/m³, 1.1× usualNeu-Ulm, 23 December: 13.1 µg/m³, 1.2× usualNeu-Ulm, 24 December: 6.1 µg/m³, 0.6× usualNeu-Ulm, 25 December: 9.1 µg/m³, 0.8× usualNeu-Ulm, 26 December: 12.1 µg/m³, 1.1× usualNeu-Ulm, 27 December: 19.6 µg/m³, 1.8× usualNeu-Ulm, 28 December: 12.7 µg/m³, 1.2× usualNeu-Ulm, 29 December: 21.4 µg/m³, 2.0× usualNeu-Ulm, 30 December: 12.8 µg/m³, 1.2× usualNeu-Ulm, 31 December: 11.5 µg/m³, 1.1× usualNeu-Ulm, 1 January: 57.3 µg/m³, 5.3× usualNeu-Ulm, 2 January: 4.4 µg/m³, 0.4× usualNeu-Ulm, 3 January: 4.7 µg/m³, 0.4× usualNeu-Ulm, 4 January: 7.9 µg/m³, 0.7× usualNeu-Ulm, 5 January: 12.4 µg/m³, 1.1× usualWolfsbergWolfsberg, 22 December: 10.1 µg/m³, 0.5× usualWolfsberg, 23 December: 10.7 µg/m³, 0.5× usualWolfsberg, 24 December: no readingWolfsberg, 25 December: 5.5 µg/m³, 0.3× usualWolfsberg, 26 December: 13.0 µg/m³, 0.6× usualWolfsberg, 27 December: 7.1 µg/m³, 0.3× usualWolfsberg, 28 December: 11.7 µg/m³, 0.6× usualWolfsberg, 29 December: 15.1 µg/m³, 0.7× usualWolfsberg, 30 December: 12.6 µg/m³, 0.6× usualWolfsberg, 31 December: 12.7 µg/m³, 0.6× usualWolfsberg, 1 January: 49.0 µg/m³, 2.4× usualWolfsberg, 2 January: 27.6 µg/m³, 1.3× usualWolfsberg, 3 January: 15.8 µg/m³, 0.8× usualWolfsberg, 4 January: 12.9 µg/m³, 0.6× usualWolfsberg, 5 January: 13.7 µg/m³, 0.7× usualFriedrichshafenFriedrichshafen, 22 December: 10.7 µg/m³, 1.0× usualFriedrichshafen, 23 December: 12.2 µg/m³, 1.1× usualFriedrichshafen, 24 December: 7.0 µg/m³, 0.6× usualFriedrichshafen, 25 December: 10.7 µg/m³, 1.0× usualFriedrichshafen, 26 December: 15.6 µg/m³, 1.4× usualFriedrichshafen, 27 December: 17.9 µg/m³, 1.6× usualFriedrichshafen, 28 December: 16.7 µg/m³, 1.5× usualFriedrichshafen, 29 December: 20.9 µg/m³, 1.9× usualFriedrichshafen, 30 December: 19.7 µg/m³, 1.8× usualFriedrichshafen, 31 December: 18.8 µg/m³, 1.7× usualFriedrichshafen, 1 January: 45.3 µg/m³, 4.1× usualFriedrichshafen, 2 January: 5.1 µg/m³, 0.5× usualFriedrichshafen, 3 January: 5.0 µg/m³, 0.5× usualFriedrichshafen, 4 January: 10.6 µg/m³, 1.0× usualFriedrichshafen, 5 January: 18.3 µg/m³, 1.6× usualUlmUlm, 22 December: 14.6 µg/m³, 1.3× usualUlm, 23 December: 17.0 µg/m³, 1.5× usualUlm, 24 December: 9.3 µg/m³, 0.8× usualUlm, 25 December: 12.4 µg/m³, 1.1× usualUlm, 26 December: 15.3 µg/m³, 1.4× usualUlm, 27 December: 21.2 µg/m³, 1.9× usualUlm, 28 December: 16.5 µg/m³, 1.5× usualUlm, 29 December: 24.4 µg/m³, 2.2× usualUlm, 30 December: 17.2 µg/m³, 1.5× usualUlm, 31 December: 16.3 µg/m³, 1.5× usualUlm, 1 January: 41.9 µg/m³, 3.8× usualUlm, 2 January: 4.5 µg/m³, 0.4× usualUlm, 3 January: 5.0 µg/m³, 0.5× usualUlm, 4 January: 7.4 µg/m³, 0.7× usualUlm, 5 January: 13.1 µg/m³, 1.2× usualIngolstadtIngolstadt, 22 December: 12.1 µg/m³, 0.9× usualIngolstadt, 23 December: 8.8 µg/m³, 0.7× usualIngolstadt, 24 December: 5.8 µg/m³, 0.5× usualIngolstadt, 25 December: 8.3 µg/m³, 0.6× usualIngolstadt, 26 December: 12.2 µg/m³, 1.0× usualIngolstadt, 27 December: 20.0 µg/m³, 1.6× usualIngolstadt, 28 December: 15.0 µg/m³, 1.2× usualIngolstadt, 29 December: 16.1 µg/m³, 1.3× usualIngolstadt, 30 December: 11.9 µg/m³, 0.9× usualIngolstadt, 31 December: 9.8 µg/m³, 0.8× usualIngolstadt, 1 January: 40.8 µg/m³, 3.2× usualIngolstadt, 2 January: 4.3 µg/m³, 0.3× usualIngolstadt, 3 January: 5.3 µg/m³, 0.4× usualIngolstadt, 4 January: 10.6 µg/m³, 0.8× usualIngolstadt, 5 January: 28.9 µg/m³, 2.3× usualOlivetOlivet, 22 December: 7.8 µg/m³, 1.2× usualOlivet, 23 December: 16.5 µg/m³, 2.5× usualOlivet, 24 December: 6.5 µg/m³, 1.0× usualOlivet, 25 December: 9.4 µg/m³, 1.4× usualOlivet, 26 December: 19.5 µg/m³, 3.0× usualOlivet, 27 December: 23.7 µg/m³, 3.6× usualOlivet, 28 December: 19.0 µg/m³, 2.9× usualOlivet, 29 December: 21.2 µg/m³, 3.3× usualOlivet, 30 December: 10.4 µg/m³, 1.6× usualOlivet, 31 December: 16.1 µg/m³, 2.5× usualOlivet, 1 January: 40.3 µg/m³, 6.2× usualOlivet, 2 January: 12.3 µg/m³, 1.9× usualOlivet, 3 January: 9.8 µg/m³, 1.5× usualOlivet, 4 January: 16.5 µg/m³, 2.5× usualOlivet, 5 January: 9.6 µg/m³, 1.5× usualMeyzieuMeyzieu, 22 December: 17.9 µg/m³, 1.6× usualMeyzieu, 23 December: 15.9 µg/m³, 1.4× usualMeyzieu, 24 December: 12.9 µg/m³, 1.1× usualMeyzieu, 25 December: 11.9 µg/m³, 1.0× usualMeyzieu, 26 December: 19.3 µg/m³, 1.7× usualMeyzieu, 27 December: 22.3 µg/m³, 2.0× usualMeyzieu, 28 December: 14.8 µg/m³, 1.3× usualMeyzieu, 29 December: 23.5 µg/m³, 2.1× usualMeyzieu, 30 December: 22.2 µg/m³, 1.9× usualMeyzieu, 31 December: 14.9 µg/m³, 1.3× usualMeyzieu, 1 January: 39.9 µg/m³, 3.5× usualMeyzieu, 2 January: 36.9 µg/m³, 3.2× usualMeyzieu, 3 January: 18.5 µg/m³, 1.6× usualMeyzieu, 4 January: 9.2 µg/m³, 0.8× usualMeyzieu, 5 January: 13.9 µg/m³, 1.2× usualKlagenfurt am Wörth…Klagenfurt am Wörthersee, 22 December: 9.6 µg/m³, 0.6× usualKlagenfurt am Wörthersee, 23 December: 11.3 µg/m³, 0.6× usualKlagenfurt am Wörthersee, 24 December: 5.7 µg/m³, 0.3× usualKlagenfurt am Wörthersee, 25 December: 8.0 µg/m³, 0.5× usualKlagenfurt am Wörthersee, 26 December: 16.7 µg/m³, 1.0× usualKlagenfurt am Wörthersee, 27 December: 6.0 µg/m³, 0.3× usualKlagenfurt am Wörthersee, 28 December: 9.2 µg/m³, 0.5× usualKlagenfurt am Wörthersee, 29 December: 9.8 µg/m³, 0.6× usualKlagenfurt am Wörthersee, 30 December: 12.8 µg/m³, 0.7× usualKlagenfurt am Wörthersee, 31 December: 15.9 µg/m³, 0.9× usualKlagenfurt am Wörthersee, 1 January: 37.4 µg/m³, 2.1× usualKlagenfurt am Wörthersee, 2 January: 18.6 µg/m³, 1.1× usualKlagenfurt am Wörthersee, 3 January: 22.3 µg/m³, 1.3× usualKlagenfurt am Wörthersee, 4 January: 17.3 µg/m³, 1.0× usualKlagenfurt am Wörthersee, 5 January: 14.7 µg/m³, 0.8× usualEindhovenEindhoven, 22 December: 15.7 µg/m³, 1.4× usualEindhoven, 23 December: 14.7 µg/m³, 1.3× usualEindhoven, 24 December: 9.1 µg/m³, 0.8× usualEindhoven, 25 December: 12.1 µg/m³, 1.0× usualEindhoven, 26 December: 21.2 µg/m³, 1.8× usualEindhoven, 27 December: 20.4 µg/m³, 1.8× usualEindhoven, 28 December: 16.8 µg/m³, 1.4× usualEindhoven, 29 December: 17.2 µg/m³, 1.5× usualEindhoven, 30 December: 10.5 µg/m³, 0.9× usualEindhoven, 31 December: 22.1 µg/m³, 1.9× usualEindhoven, 1 January: 36.7 µg/m³, 3.2× usualEindhoven, 2 January: 3.6 µg/m³, 0.3× usualEindhoven, 3 January: 7.7 µg/m³, 0.7× usualEindhoven, 4 January: 7.1 µg/m³, 0.6× usualEindhoven, 5 January: 11.6 µg/m³, 1.0× usualInnsbruckInnsbruck, 22 December: 9.2 µg/m³, 0.7× usualInnsbruck, 23 December: 14.5 µg/m³, 1.1× usualInnsbruck, 24 December: 12.3 µg/m³, 0.9× usualInnsbruck, 25 December: 13.7 µg/m³, 1.0× usualInnsbruck, 26 December: 14.7 µg/m³, 1.1× usualInnsbruck, 27 December: 18.3 µg/m³, 1.4× usualInnsbruck, 28 December: 19.1 µg/m³, 1.4× usualInnsbruck, 29 December: 19.8 µg/m³, 1.5× usualInnsbruck, 30 December: 24.4 µg/m³, 1.8× usualInnsbruck, 31 December: 17.2 µg/m³, 1.3× usualInnsbruck, 1 January: 35.7 µg/m³, 2.7× usualInnsbruck, 2 January: 22.4 µg/m³, 1.7× usualInnsbruck, 3 January: 13.2 µg/m³, 1.0× usualInnsbruck, 4 January: 14.0 µg/m³, 1.1× usualInnsbruck, 5 January: 17.6 µg/m³, 1.3× usualUtrechtUtrecht, 22 December: 16.6 µg/m³, 1.7× usualUtrecht, 23 December: 12.3 µg/m³, 1.3× usualUtrecht, 24 December: 9.1 µg/m³, 1.0× usualUtrecht, 25 December: 9.8 µg/m³, 1.0× usualUtrecht, 26 December: 20.3 µg/m³, 2.1× usualUtrecht, 27 December: 14.2 µg/m³, 1.5× usualUtrecht, 28 December: 14.9 µg/m³, 1.6× usualUtrecht, 29 December: 6.8 µg/m³, 0.7× usualUtrecht, 30 December: 10.5 µg/m³, 1.1× usualUtrecht, 31 December: 23.4 µg/m³, 2.5× usualUtrecht, 1 January: 35.4 µg/m³, 3.7× usualUtrecht, 2 January: 4.0 µg/m³, 0.4× usualUtrecht, 3 January: 4.2 µg/m³, 0.4× usualUtrecht, 4 January: 4.2 µg/m³, 0.4× usualUtrecht, 5 January: 11.7 µg/m³, 1.2× usual22 Dec242628301 Jan35
The 60 cities with the highest readings of 170, 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.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
NeuwiedRheinland-Pfalz, Germany3 94.31 January8.411×
Kempten (Allgäu)Bavaria, Germany1 110.01 January11.19.9×
ZürichZurich, Switzerland1 69.41 January9.37.5×
WeißenfelsSaxony-Anhalt, Germany3 39.426 December5.96.7×
MunichBavaria, Germany1 59.61 January9.16.5×
Gorzów WielkopolskiLubusz, Poland3 95.226 December15.36.2×
OlivetCentre-Val de Loire, France1 40.31 January6.56.2×
ReutlingenBaden-Wurttemberg, Germany3 60.21 January9.96.1×
MüllheimBaden-Wurttemberg, Germany2 43.11 January7.26.0×
BéthuneHauts-de-France, France4 41.129 December6.96.0×
Saint HelierSt Helier, Jersey2 27.526 December4.35.5×
HalberstadtSaxony-Anhalt, Germany1 34.026 December6.35.4×
Neu-UlmBavaria, Germany1 57.31 January10.85.3×
LiègeWallonia, Belgium1 28.829 December5.55.2×
LindauBavaria, Germany1 60.61 January11.65.2×
ZeitzSaxony-Anhalt, Germany2 40.226 December7.75.2×
LörrachBaden-Wurttemberg, Germany2 52.51 January10.35.1×
MerseburgSaxony-Anhalt, Germany2 44.626 December9.24.8×
OrléansCentre-Val de Loire, France2 40.21 January8.44.8×
MontargisCentre-Val de Loire, France1 30.11 January6.34.8×
HildesheimLower Saxony, Germany1 30.526 December6.44.8×
TübingenBaden-Wurttemberg, Germany4 56.11 January12.34.6×
BraunschweigLower Saxony, Germany2 30.926 December6.84.5×
Halle (Saale)Saxony-Anhalt, Germany1 37.626 December8.44.5×
Burg bei MagdeburgSaxony-Anhalt, Germany1 26.226 December5.94.4×
MagdeburgSaxony-Anhalt, Germany1 36.526 December8.34.4×
SalzgitterLower Saxony, Germany1 26.026 December6.04.3×
GroningenGroningen, The Netherlands1 29.91 January6.94.3×
RennesBrittany, France2 37.11 January8.64.3×
FreiburgBaden-Wurttemberg, Germany2 28.928 December6.74.3×
GeraThuringia, Germany1 29.326 December6.84.3×
MonsWallonia, Belgium1 30.731 December7.24.3×
Villingen-SchwenningenBaden-Wurttemberg, Germany1 34.01 January8.04.3×
GöttingenLower Saxony, Germany2 26.027 December6.24.2×
Bitterfeld-WolfenSaxony-Anhalt, Germany2 35.126 December8.54.1×
ErfurtThuringia, Germany1 25.626 December6.24.1×
RintelnLower Saxony, Germany1 26.027 December6.34.1×
KöthenSaxony-Anhalt, Germany2 27.426 December6.74.1×
WittenbergSaxony-Anhalt, Germany2 41.726 December10.24.1×
FriedrichshafenBaden-Wurttemberg, Germany1 45.31 January11.14.1×
BernburgSaxony-Anhalt, Germany3 40.726 December10.04.1×
Königs WusterhausenBrandenburg, Germany1 31.826 December8.04.0×
ReimsGrand Est, France2 31.027 December7.84.0×
Blankenfelde-MahlowBrandenburg, Germany1 33.326 December8.44.0×
Baden-BadenBaden-Wurttemberg, Germany1 32.91 January8.34.0×
Jelenia GóraLower Silesia, Poland2 62.026 December16.03.9×
WeimarThuringia, Germany1 26.726 December6.93.9×
LubnjowBrandenburg, Germany1 26.026 December6.83.8×
AugsburgBavaria, Germany1 34.71 January9.13.8×
BielefeldNorth Rhine-Westphalia, Germany2 26.126 December6.93.8×
UlmBaden-Wurttemberg, Germany1 41.91 January11.13.8×
WolfsburgLower Saxony, Germany1 26.826 December7.13.8×
HannoverLower Saxony, Germany2 26.226 December7.03.7×
PotsdamBrandenburg, Germany1 28.026 December7.53.7×
UtrechtUtrecht, The Netherlands1 35.41 January9.53.7×
NordhausenThuringia, Germany1 25.326 December6.83.7×
DreuxCentre-Val de Loire, France1 27.827 December7.53.7×
Brandenburg an der HavelBrandenburg, Germany1 28.026 December7.73.6×
ÉpinalGrand Est, France4 32.029 December8.83.6×
KłodzkoLower Silesia, Poland2 70.827 December19.53.6×
DessauSaxony-Anhalt, Germany2 35.526 December9.83.6×
JenaThuringia, Germany1 25.326 December7.03.6×
ÉvreuxNormandy, France1 29.627 December8.23.6×
Biberach an der RißBaden-Wurttemberg, Germany1 33.21 January9.23.6×
EnschedeOverijssel, The Netherlands1 31.931 December8.93.6×
ChartresCentre-Val de Loire, France3 29.81 January8.53.5×
MeyzieuAuvergne-Rhône-Alpes, France2 39.91 January11.43.5×
AltenburgThuringia, Germany1 25.526 December7.33.5×
KölnNorth Rhine-Westphalia, Germany1 25.327 December7.33.5×
LilleHauts-de-France, France1 27.726 December8.03.5×
LuckenwaldeBrandenburg, Germany1 31.726 December9.23.4×
AuxerreBourgogne-Franche-Comté, France2 27.228 December7.93.4×
StrasbourgGrand Est, France4 45.71 January13.33.4×
AmiensHauts-de-France, France3 29.227 December8.53.4×
Joué-lès-ToursCentre-Val de Loire, France1 27.84 January8.13.4×
Hradec KrálovéHradec Králové Region, Czechia1 39.826 December11.63.4×
LiberecLiberec Region, Czechia1 33.626 December9.83.4×
NurembergBavaria, Germany1 31.11 January9.13.4×
CalaisHauts-de-France, France2 27.626 December8.13.4×
ŻaryLubusz, Poland3 42.926 December12.63.4×
RambouilletÎle-de-France, France3 29.627 December8.73.4×
CottbusBrandenburg, Germany1 27.726 December8.23.4×
BiałystokPodlasie, Poland1 53.71 January15.93.4×
Frankfurt (Oder)Brandenburg, Germany1 26.926 December8.03.4×
PraguePrague, Czechia1 35.026 December10.53.3×
PardubicePardubice Region, Czechia1 36.926 December11.13.3×
BernBern, Switzerland1 34.21 January10.33.3×
EisenhüttenstadtBrandenburg, Germany1 26.526 December8.03.3×
BourgesCentre-Val de Loire, France1 26.127 December7.93.3×
PoznańGreater Poland, Poland2 54.826 December16.63.3×
HerrenbergBaden-Wurttemberg, Germany1 29.01 January8.83.3×
The HagueSouth Holland, The Netherlands1 29.31 January8.93.3×
WernigerodeSaxony-Anhalt, Germany1 25.926 December7.93.3×
KehlBaden-Wurttemberg, Germany3 36.11 January11.13.3×
Saint-ÉtienneAuvergne-Rhône-Alpes, France1 26.71 January8.33.2×
Le HavreNormandy, France2 28.327 December8.83.2×
Boulogne-sur-MerHauts-de-France, France1 27.326 December8.53.2×
IngolstadtBavaria, Germany1 40.81 January12.83.2×
DenainHauts-de-France, France1 28.526 December9.03.2×
EindhovenNorth Brabant, The Netherlands1 36.71 January11.63.2×
NeuenhagenBrandenburg, Germany1 25.626 December8.13.2×
MühlhausenThuringia, Germany1 25.826 December8.23.1×
DortmundNorth Rhine-Westphalia, Germany1 25.727 December8.23.1×
CoulommiersÎle-de-France, France5 35.61 January11.43.1×
GreizThuringia, Germany2 26.526 December8.53.1×
RadomskoŁódź Voivodeship, Poland1 70.15 January22.53.1×
AlbertvilleAuvergne-Rhône-Alpes, France5 35.230 December11.33.1×
ValenciennesHauts-de-France, France1 25.926 December8.43.1×
Zielona GóraLubusz, Poland2 28.626 December9.33.1×
DouaiHauts-de-France, France1 29.226 December9.63.0×
GrazStyria, Austria1 68.51 January22.63.0×
MarignaneProvence-Alpes-Côte d'Azur, France2 32.631 December10.83.0×
SchwerinMecklenburg-Vorpommern, Germany1 26.01 January8.73.0×
UnnaNorth Rhine-Westphalia, Germany1 25.927 December8.73.0×
VannesBrittany, France1 27.34 January9.32.9×
HagenNorth Rhine-Westphalia, Germany2 25.827 December8.82.9×
NijmegenGelderland, The Netherlands1 27.41 January9.42.9×
NeversBourgogne-Franche-Comté, France1 26.227 December9.02.9×
BarneveldGelderland, The Netherlands1 25.91 January8.92.9×
MoulinsAuvergne-Rhône-Alpes, France1 26.11 January9.12.9×
RouenNormandy, France3 29.44 January10.32.9×
StendalSaxony-Anhalt, Germany1 30.226 December10.62.8×
Bourg-en-BresseAuvergne-Rhône-Alpes, France1 25.62 January9.02.8×
DattelnNorth Rhine-Westphalia, Germany1 25.127 December9.02.8×
KasselHesse, Germany1 26.027 December9.42.8×
LyonAuvergne-Rhône-Alpes, France4 36.72 January13.52.7×
SulechówLubusz, Poland1 35.622 December13.12.7×
BaselBasel-City, Switzerland2 32.81 January12.12.7×
ŘíčanyCentral Bohemia, Czechia1 58.426 December21.72.7×
SpeyerRheinland-Pfalz, Germany1 31.21 January11.62.7×
InnsbruckTyrol, Austria1 35.71 January13.32.7×
MarseilleProvence-Alpes-Côte d'Azur, France1 26.031 December9.82.7×
StuttgartBaden-Wurttemberg, Germany1 30.51 January11.52.7×
MalackyBratislava Region, Slovakia2 33.626 December12.82.6×
ŻywiecSilesia, Poland1 74.65 January28.52.6×
BerlinState of Berlin, Germany2 30.026 December11.52.6×
TarnówLesser Poland, Poland1 41.826 December16.32.6×
TeltowBrandenburg, Germany2 31.926 December12.52.6×
SzczecinWest Pomerania, Poland2 31.225 December12.32.5×
BensheimHesse, Germany1 27.81 January11.02.5×
ParisÎle-de-France, France1 26.227 December10.42.5×
GrenobleAuvergne-Rhône-Alpes, France3 37.92 January15.12.5×
VillefontaineAuvergne-Rhône-Alpes, France2 34.81 January14.02.5×
BydgoszczKujawsko-Pomorskie, Poland2 33.626 December13.62.5×
DunkirkHauts-de-France, France1 25.329 December10.32.5×
MannheimBaden-Wurttemberg, Germany1 29.31 January12.02.4×
OlpeNorth Rhine-Westphalia, Germany1 30.231 December12.42.4×
WolfsbergCarinthia, Austria1 49.01 January20.52.4×
NîmesOccitanie, France1 29.629 December12.42.4×
HaarlemNorth Holland, The Netherlands1 39.022 December16.42.4×
StodůlkyPrague, Czechia2 70.026 December29.72.4×
BellinzonaTicino, Switzerland2 35.731 December15.22.3×
KaliszGreater Poland, Poland1 47.126 December20.42.3×
OtwockMazovia, Poland1 56.125 December24.32.3×
Frankfurt am MainHesse, Germany1 25.21 January11.02.3×
Klagenfurt am WörtherseeCarinthia, Austria1 37.41 January17.42.1×
WawerMazovia, Poland1 37.625 December17.72.1×
ChambéryAuvergne-Rhône-Alpes, France2 27.929 December13.32.1×
Kędzierzyn-KoźleOpole Voivodeship, Poland1 38.45 January18.42.1×
MulhouseGrand Est, France2 30.41 January14.62.1×
ŻyrardówMazovia, Poland2 38.125 December18.32.1×
AnnemasseAuvergne-Rhône-Alpes, France2 25.829 December12.42.1×
KutnoŁódź Voivodeship, Poland1 46.026 December22.22.1×
ŁaskŁódź Voivodeship, Poland1 49.226 December23.82.1×
PassauBavaria, Germany1 25.61 January12.52.0×
Romans-sur-IsèreAuvergne-Rhône-Alpes, France1 34.61 January16.92.0×
ŽideniceSouth Moravian, Czechia1 27.926 December13.72.0×
WarsawMazovia, Poland1 34.026 December16.82.0×
ValenceAuvergne-Rhône-Alpes, France1 26.129 December13.02.0×
PłockMazovia, Poland1 29.826 December14.92.0×

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 Germany and France

Number 11 of 42 episodes in Germany and France since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 42.

Use this page

SmogRank, Central Europe, December 2025 to January 2026: 170 cities with PM2.5 at twice their usual or more, 25 December 2025 to 2 January 2026, smogrank.com/episodes/2025-12-central-europe (accessed 2 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.