SmogRank / Episodes / Germany

Eastern Europe, December 2023

For 6 days, from 4 to 9 December 2023, 107 cities in Germany, Czechia, Slovakia and 6 more countries had PM2.5 at least twice their usual for the time of year. The worst reading was Banja Luka, Srpska, Bosnia and Herzegovina: 112.0 µg/m³ on 8 December, about 2.1× its usual 53.7.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached107in 9 countries
Days64 to 9 December 2023
Worst day6 December82 cities counted
Furthest above usual11×Lübeck

Day by day

6 December 82 cities at twice their usual or more
BratislavaGyőrCottbusEsztergomSalzburgBlankenfelde-MahlowAltenburgGyálWeidenSaalfelden am Steinernen MeerGreizSchwandorf in BayernMarktredwitzPotsdamWittenbergGeraPécsWeißenfelsBrandenburg an der HavelHalle (Saale)KöthenJenaRijekaKazincbarcikaMunichSaalfeldMiskolcWeimarBurg bei MagdeburgNurembergStarnbergMagdeburgCoburgBambergErfurtSuhlHalberstadtAnsbachNordhausenMeiningenBolzanoNovi SadMühlhausenHansestadt SalzwedelNyíregyházaEisenachSninaAalenGoslarKempten (Allgäu)BraunschweigWürzburgTrentoSalzgitterRoveretoLauda-KönigshofenGöttingenWitzenhausenFuldaBiberach an der RißBelgradeHildesheimPesaroAnconaFalconara MarittimaLindauKasselJesiCivitanova MarcheHannoverHeilbronnFriedrichshafenAschaffenburgLudwigsburgFilderstadtStuttgartReutlingenGroßostheimMichelstadtHanau am MainHerrenbergMarburg an der LahnWieslochHeidelbergFrankfurt am MainRintelnPforzheimDarmstadtGießenBensheimEschbornArezzoLampertheimMannheimKönigstein im TaunusLudwigshafen am RheinFlorenceSpeyerRüsselsheim am MainPratoMontemurloEggenstein-LeopoldshafenKarlsruheVillingen-SchwenningenKlaipėdaOytenMainzWiesbadenBielefeldZürichBellinzonaBaden-BadenWarsteinPoggibonsiBremenLuganoCapannoriLimburg an der LahnNetphenDelmenhorstSoestBad KreuznachMassaViareggioPisaKaiserslauternKehlLa SpeziaFreiburgBremerhavenOsnabrückLivornoKoblenzBendorfOldenburgUnnaLüdenscheidNišBorgomaneroNeuwiedMüllheimLörrachSchwerteMünsterHagenBaselDortmundWilhelmshavenFriesoytheAlessandriaDattelnMulhouseBonnHattingenWuppertalBernGelsenkirchenLingenKaunasCraiovaTurinBotevgradMonacoNiceLiberpolisKošiceSarajevoBanja LukaVranov nad TopľouNitraZvolenKlagenfurt am WörtherseeWolfsbergCluj-NapocaDejWormsŽiar nad HronomGrazTeltowHandlováSenicaBanská BystricaTrnavaHumennéRužomberokDunaújvárosBerlinTübingenNauenPrievidzaPartizánskeTrenčínAmstettenPrešovSankt PöltenUlmViennaTraunreutBadenNeu-UlmPassauKlosterneuburgBrnoMödlingWelsPragueLubnjowSteyrAugsburgSpišská Nová VesLiberecMladá BoleslavKleinmachnowLinzHradec KrálovéPilsenFalkenseeNeuenhagenŽidenicePerchtoldsdorfKonstanzTraunPardubiceŽilinaAnsfeldenKarlova VesSokolovKelheimPopradZlínČeské BudějoviceBernau bei BerlinWittenbergeOlomoucKladnoMartinZnojmoBurghausenMalmöDěčínBerounNeuruppinÚstí nad LabemKroměřížFlensburgValašské MeziříčíStrausbergHamburgSchwedt (Oder)LitvínovPřerovFrankfurt (Oder)KadaňMostEisenhüttenstadtTepliceHavířovWismarOstravaRostockGüstrowBohumínItzehoeEberswaldeOpavaTřinecFrýdek-MístekČeský TěšínKielStralsundLübeck
1 Dec23456789101112
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

TřinecTřinec, 1 December: 66.2 µg/m³, 6.0× usualTřinec, 2 December: 32.2 µg/m³, 2.9× usualTřinec, 3 December: 17.4 µg/m³, 1.6× usualTřinec, 4 December: 15.1 µg/m³, 1.4× usualTřinec, 5 December: 12.3 µg/m³, 1.1× usualTřinec, 6 December: 58.9 µg/m³, 5.4× usualTřinec, 7 December: 104.0 µg/m³, 9.5× usualTřinec, 8 December: 44.4 µg/m³, 4.0× usualTřinec, 9 December: 12.6 µg/m³, 1.1× usualTřinec, 10 December: 12.1 µg/m³, 1.1× usualTřinec, 11 December: 8.0 µg/m³, 0.7× usualTřinec, 12 December: 8.0 µg/m³, 0.7× usualČeský TěšínČeský Těšín, 1 December: 75.8 µg/m³, 7.4× usualČeský Těšín, 2 December: 33.2 µg/m³, 3.2× usualČeský Těšín, 3 December: 16.7 µg/m³, 1.6× usualČeský Těšín, 4 December: 14.9 µg/m³, 1.4× usualČeský Těšín, 5 December: 26.9 µg/m³, 2.6× usualČeský Těšín, 6 December: 90.3 µg/m³, 8.8× usualČeský Těšín, 7 December: 91.9 µg/m³, 8.9× usualČeský Těšín, 8 December: 103.0 µg/m³, 10× usualČeský Těšín, 9 December: 25.0 µg/m³, 2.4× usualČeský Těšín, 10 December: 14.2 µg/m³, 1.4× usualČeský Těšín, 11 December: no readingČeský Těšín, 12 December: 8.4 µg/m³, 0.8× usualOstravaOstrava, 1 December: 67.9 µg/m³, 5.6× usualOstrava, 2 December: 35.0 µg/m³, 2.9× usualOstrava, 3 December: 15.6 µg/m³, 1.3× usualOstrava, 4 December: 28.2 µg/m³, 2.3× usualOstrava, 5 December: 44.4 µg/m³, 3.7× usualOstrava, 6 December: 53.3 µg/m³, 4.4× usualOstrava, 7 December: 99.8 µg/m³, 8.2× usualOstrava, 8 December: 86.2 µg/m³, 7.1× usualOstrava, 9 December: 27.2 µg/m³, 2.2× usualOstrava, 10 December: 13.8 µg/m³, 1.1× usualOstrava, 11 December: 8.0 µg/m³, 0.7× usualOstrava, 12 December: 10.0 µg/m³, 0.8× usualOpavaOpava, 1 December: 59.0 µg/m³, 5.6× usualOpava, 2 December: 37.1 µg/m³, 3.5× usualOpava, 3 December: 15.8 µg/m³, 1.5× usualOpava, 4 December: 45.0 µg/m³, 4.3× usualOpava, 5 December: 40.1 µg/m³, 3.8× usualOpava, 6 December: 38.2 µg/m³, 3.6× usualOpava, 7 December: 98.4 µg/m³, 9.4× usualOpava, 8 December: 47.5 µg/m³, 4.5× usualOpava, 9 December: 11.5 µg/m³, 1.1× usualOpava, 10 December: 10.3 µg/m³, 1.0× usualOpava, 11 December: 7.1 µg/m³, 0.7× usualOpava, 12 December: 6.9 µg/m³, 0.7× usualFrýdek-MístekFrýdek-Místek, 1 December: 75.4 µg/m³, 7.4× usualFrýdek-Místek, 2 December: 33.3 µg/m³, 3.3× usualFrýdek-Místek, 3 December: 14.1 µg/m³, 1.4× usualFrýdek-Místek, 4 December: 18.4 µg/m³, 1.8× usualFrýdek-Místek, 5 December: 36.9 µg/m³, 3.6× usualFrýdek-Místek, 6 December: 76.1 µg/m³, 7.5× usualFrýdek-Místek, 7 December: 97.0 µg/m³, 9.5× usualFrýdek-Místek, 8 December: 65.9 µg/m³, 6.5× usualFrýdek-Místek, 9 December: 24.0 µg/m³, 2.4× usualFrýdek-Místek, 10 December: 9.3 µg/m³, 0.9× usualFrýdek-Místek, 11 December: no readingFrýdek-Místek, 12 December: 10.1 µg/m³, 1.0× usualHavířovHavířov, 1 December: 73.5 µg/m³, 5.9× usualHavířov, 2 December: 32.3 µg/m³, 2.6× usualHavířov, 3 December: 16.5 µg/m³, 1.3× usualHavířov, 4 December: 22.6 µg/m³, 1.8× usualHavířov, 5 December: 41.8 µg/m³, 3.4× usualHavířov, 6 December: 69.0 µg/m³, 5.6× usualHavířov, 7 December: 96.5 µg/m³, 7.8× usualHavířov, 8 December: 89.6 µg/m³, 7.2× usualHavířov, 9 December: 57.2 µg/m³, 4.6× usualHavířov, 10 December: 17.3 µg/m³, 1.4× usualHavířov, 11 December: 4.6 µg/m³, 0.4× usualHavířov, 12 December: 9.6 µg/m³, 0.8× usualBohumínBohumín, 1 December: 80.3 µg/m³, 7.4× usualBohumín, 2 December: 30.7 µg/m³, 2.8× usualBohumín, 3 December: 18.0 µg/m³, 1.7× usualBohumín, 4 December: 24.7 µg/m³, 2.3× usualBohumín, 5 December: 49.2 µg/m³, 4.6× usualBohumín, 6 December: 59.3 µg/m³, 5.5× usualBohumín, 7 December: 92.1 µg/m³, 8.5× usualBohumín, 8 December: 84.5 µg/m³, 7.8× usualBohumín, 9 December: 40.0 µg/m³, 3.7× usualBohumín, 10 December: 25.4 µg/m³, 2.4× usualBohumín, 11 December: 8.9 µg/m³, 0.8× usualBohumín, 12 December: 10.0 µg/m³, 0.9× usualPřerovPřerov, 1 December: 43.2 µg/m³, 3.3× usualPřerov, 2 December: 22.8 µg/m³, 1.8× usualPřerov, 3 December: 15.0 µg/m³, 1.2× usualPřerov, 4 December: 17.0 µg/m³, 1.3× usualPřerov, 5 December: 24.2 µg/m³, 1.9× usualPřerov, 6 December: 49.9 µg/m³, 3.9× usualPřerov, 7 December: 86.8 µg/m³, 6.7× usualPřerov, 8 December: 45.9 µg/m³, 3.6× usualPřerov, 9 December: 21.1 µg/m³, 1.6× usualPřerov, 10 December: 15.9 µg/m³, 1.2× usualPřerov, 11 December: 12.2 µg/m³, 0.9× usualPřerov, 12 December: 10.6 µg/m³, 0.8× usualValašské MeziříčíValašské Meziříčí, 1 December: 58.0 µg/m³, 4.6× usualValašské Meziříčí, 2 December: 29.0 µg/m³, 2.3× usualValašské Meziříčí, 3 December: 20.4 µg/m³, 1.6× usualValašské Meziříčí, 4 December: 14.9 µg/m³, 1.2× usualValašské Meziříčí, 5 December: 20.2 µg/m³, 1.6× usualValašské Meziříčí, 6 December: 50.8 µg/m³, 4.1× usualValašské Meziříčí, 7 December: 75.8 µg/m³, 6.1× usualValašské Meziříčí, 8 December: 38.5 µg/m³, 3.1× usualValašské Meziříčí, 9 December: 14.8 µg/m³, 1.2× usualValašské Meziříčí, 10 December: 12.6 µg/m³, 1.0× usualValašské Meziříčí, 11 December: 7.4 µg/m³, 0.6× usualValašské Meziříčí, 12 December: 13.0 µg/m³, 1.0× usualTepliceTeplice, 1 December: 33.9 µg/m³, 3.4× usualTeplice, 2 December: 11.5 µg/m³, 1.2× usualTeplice, 3 December: 14.9 µg/m³, 1.5× usualTeplice, 4 December: 20.8 µg/m³, 2.1× usualTeplice, 5 December: 29.8 µg/m³, 3.0× usualTeplice, 6 December: 53.2 µg/m³, 5.4× usualTeplice, 7 December: 75.1 µg/m³, 7.6× usualTeplice, 8 December: 34.3 µg/m³, 3.5× usualTeplice, 9 December: 35.4 µg/m³, 3.6× usualTeplice, 10 December: 19.1 µg/m³, 1.9× usualTeplice, 11 December: 15.4 µg/m³, 1.6× usualTeplice, 12 December: 11.2 µg/m³, 1.1× usualDěčínDěčín, 1 December: 35.0 µg/m³, 2.7× usualDěčín, 2 December: 16.5 µg/m³, 1.3× usualDěčín, 3 December: 21.8 µg/m³, 1.7× usualDěčín, 4 December: 25.0 µg/m³, 1.9× usualDěčín, 5 December: 24.7 µg/m³, 1.9× usualDěčín, 6 December: 41.3 µg/m³, 3.2× usualDěčín, 7 December: 68.7 µg/m³, 5.3× usualDěčín, 8 December: 29.4 µg/m³, 2.3× usualDěčín, 9 December: 27.6 µg/m³, 2.1× usualDěčín, 10 December: 20.4 µg/m³, 1.6× usualDěčín, 11 December: 24.4 µg/m³, 1.9× usualDěčín, 12 December: 15.9 µg/m³, 1.2× usualBerounBeroun, 1 December: 38.4 µg/m³, 3.1× usualBeroun, 2 December: 20.0 µg/m³, 1.6× usualBeroun, 3 December: 13.5 µg/m³, 1.1× usualBeroun, 4 December: 33.1 µg/m³, 2.7× usualBeroun, 5 December: 36.8 µg/m³, 3.0× usualBeroun, 6 December: 66.5 µg/m³, 5.4× usualBeroun, 7 December: 25.7 µg/m³, 2.1× usualBeroun, 8 December: 26.6 µg/m³, 2.1× usualBeroun, 9 December: 27.4 µg/m³, 2.2× usualBeroun, 10 December: 9.9 µg/m³, 0.8× usualBeroun, 11 December: 8.2 µg/m³, 0.7× usualBeroun, 12 December: 9.4 µg/m³, 0.8× usualOlomoucOlomouc, 1 December: 36.8 µg/m³, 2.7× usualOlomouc, 2 December: 17.5 µg/m³, 1.3× usualOlomouc, 3 December: 15.5 µg/m³, 1.1× usualOlomouc, 4 December: 19.0 µg/m³, 1.4× usualOlomouc, 5 December: 26.7 µg/m³, 1.9× usualOlomouc, 6 December: 54.7 µg/m³, 4.0× usualOlomouc, 7 December: 64.9 µg/m³, 4.7× usualOlomouc, 8 December: 49.4 µg/m³, 3.6× usualOlomouc, 9 December: 23.0 µg/m³, 1.7× usualOlomouc, 10 December: 17.0 µg/m³, 1.2× usualOlomouc, 11 December: 16.2 µg/m³, 1.2× usualOlomouc, 12 December: 11.7 µg/m³, 0.9× usualSpišská Nová VesSpišská Nová Ves, 1 December: 33.0 µg/m³, 2.1× usualSpišská Nová Ves, 2 December: 35.6 µg/m³, 2.2× usualSpišská Nová Ves, 3 December: 28.3 µg/m³, 1.8× usualSpišská Nová Ves, 4 December: 46.4 µg/m³, 2.9× usualSpišská Nová Ves, 5 December: 41.6 µg/m³, 2.6× usualSpišská Nová Ves, 6 December: 48.0 µg/m³, 3.0× usualSpišská Nová Ves, 7 December: 59.0 µg/m³, 3.7× usualSpišská Nová Ves, 8 December: 35.1 µg/m³, 2.2× usualSpišská Nová Ves, 9 December: 40.5 µg/m³, 2.5× usualSpišská Nová Ves, 10 December: 24.7 µg/m³, 1.5× usualSpišská Nová Ves, 11 December: 17.7 µg/m³, 1.1× usualSpišská Nová Ves, 12 December: 31.1 µg/m³, 1.9× usualMartinMartin, 1 December: 33.3 µg/m³, 2.9× usualMartin, 2 December: 17.3 µg/m³, 1.5× usualMartin, 3 December: 18.0 µg/m³, 1.6× usualMartin, 4 December: 27.1 µg/m³, 2.4× usualMartin, 5 December: 32.4 µg/m³, 2.9× usualMartin, 6 December: 55.6 µg/m³, 4.9× usualMartin, 7 December: 47.9 µg/m³, 4.2× usualMartin, 8 December: 52.7 µg/m³, 4.7× usualMartin, 9 December: 29.4 µg/m³, 2.6× usualMartin, 10 December: 15.5 µg/m³, 1.4× usualMartin, 11 December: 17.4 µg/m³, 1.5× usualMartin, 12 December: 24.4 µg/m³, 2.2× usualLitvínovLitvínov, 1 December: 38.9 µg/m³, 4.5× usualLitvínov, 2 December: 12.2 µg/m³, 1.4× usualLitvínov, 3 December: 14.1 µg/m³, 1.6× usualLitvínov, 4 December: 22.5 µg/m³, 2.6× usualLitvínov, 5 December: 31.0 µg/m³, 3.6× usualLitvínov, 6 December: 55.0 µg/m³, 6.4× usualLitvínov, 7 December: 47.2 µg/m³, 5.5× usualLitvínov, 8 December: 32.8 µg/m³, 3.8× usualLitvínov, 9 December: 39.3 µg/m³, 4.6× usualLitvínov, 10 December: 12.2 µg/m³, 1.4× usualLitvínov, 11 December: 8.7 µg/m³, 1.0× usualLitvínov, 12 December: 9.7 µg/m³, 1.1× usualŽilinaŽilina, 1 December: 37.8 µg/m³, 2.9× usualŽilina, 2 December: 17.9 µg/m³, 1.4× usualŽilina, 3 December: 12.4 µg/m³, 1.0× usualŽilina, 4 December: 24.5 µg/m³, 1.9× usualŽilina, 5 December: 27.0 µg/m³, 2.1× usualŽilina, 6 December: 48.3 µg/m³, 3.7× usualŽilina, 7 December: 54.8 µg/m³, 4.2× usualŽilina, 8 December: 54.5 µg/m³, 4.2× usualŽilina, 9 December: 36.6 µg/m³, 2.8× usualŽilina, 10 December: 15.4 µg/m³, 1.2× usualŽilina, 11 December: 22.2 µg/m³, 1.7× usualŽilina, 12 December: 29.3 µg/m³, 2.3× usualMostMost, 1 December: 38.5 µg/m³, 5.2× usualMost, 2 December: 14.6 µg/m³, 2.0× usualMost, 3 December: 13.7 µg/m³, 1.9× usualMost, 4 December: 24.7 µg/m³, 3.3× usualMost, 5 December: 32.0 µg/m³, 4.3× usualMost, 6 December: 54.1 µg/m³, 7.3× usualMost, 7 December: 35.5 µg/m³, 4.8× usualMost, 8 December: 29.4 µg/m³, 4.0× usualMost, 9 December: 41.4 µg/m³, 5.6× usualMost, 10 December: 34.0 µg/m³, 4.6× usualMost, 11 December: no readingMost, 12 December: no readingÚstí nad LabemÚstí nad Labem, 1 December: 30.5 µg/m³, 3.1× usualÚstí nad Labem, 2 December: 13.9 µg/m³, 1.4× usualÚstí nad Labem, 3 December: 17.1 µg/m³, 1.8× usualÚstí nad Labem, 4 December: 24.3 µg/m³, 2.5× usualÚstí nad Labem, 5 December: 30.9 µg/m³, 3.2× usualÚstí nad Labem, 6 December: 46.5 µg/m³, 4.8× usualÚstí nad Labem, 7 December: 54.0 µg/m³, 5.6× usualÚstí nad Labem, 8 December: 29.2 µg/m³, 3.0× usualÚstí nad Labem, 9 December: 25.1 µg/m³, 2.6× usualÚstí nad Labem, 10 December: 14.3 µg/m³, 1.5× usualÚstí nad Labem, 11 December: 12.2 µg/m³, 1.3× usualÚstí nad Labem, 12 December: 12.5 µg/m³, 1.3× usualFrankfurt (Oder)Frankfurt (Oder), 1 December: 26.7 µg/m³, 3.4× usualFrankfurt (Oder), 2 December: 13.3 µg/m³, 1.7× usualFrankfurt (Oder), 3 December: 13.1 µg/m³, 1.7× usualFrankfurt (Oder), 4 December: 21.0 µg/m³, 2.7× usualFrankfurt (Oder), 5 December: 34.8 µg/m³, 4.4× usualFrankfurt (Oder), 6 December: 53.6 µg/m³, 6.8× usualFrankfurt (Oder), 7 December: 53.0 µg/m³, 6.7× usualFrankfurt (Oder), 8 December: 25.5 µg/m³, 3.2× usualFrankfurt (Oder), 9 December: 18.1 µg/m³, 2.3× usualFrankfurt (Oder), 10 December: 10.7 µg/m³, 1.4× usualFrankfurt (Oder), 11 December: 3.9 µg/m³, 0.5× usualFrankfurt (Oder), 12 December: 5.7 µg/m³, 0.7× usualKadaňKadaň, 1 December: 36.8 µg/m³, 5.0× usualKadaň, 2 December: 15.9 µg/m³, 2.2× usualKadaň, 3 December: 10.0 µg/m³, 1.4× usualKadaň, 4 December: 20.3 µg/m³, 2.8× usualKadaň, 5 December: no readingKadaň, 6 December: 53.4 µg/m³, 7.3× usualKadaň, 7 December: 20.9 µg/m³, 2.9× usualKadaň, 8 December: 22.9 µg/m³, 3.1× usualKadaň, 9 December: 36.1 µg/m³, 4.9× usualKadaň, 10 December: 6.1 µg/m³, 0.8× usualKadaň, 11 December: no readingKadaň, 12 December: 5.8 µg/m³, 0.8× usualKroměřížKroměříž, 1 December: 41.2 µg/m³, 4.4× usualKroměříž, 2 December: 21.0 µg/m³, 2.3× usualKroměříž, 3 December: 10.5 µg/m³, 1.1× usualKroměříž, 4 December: 14.2 µg/m³, 1.5× usualKroměříž, 5 December: 20.2 µg/m³, 2.2× usualKroměříž, 6 December: 39.0 µg/m³, 4.2× usualKroměříž, 7 December: 52.9 µg/m³, 5.7× usualKroměříž, 8 December: 24.2 µg/m³, 2.6× usualKroměříž, 9 December: 15.5 µg/m³, 1.7× usualKroměříž, 10 December: 12.9 µg/m³, 1.4× usualKroměříž, 11 December: 6.8 µg/m³, 0.7× usualKroměříž, 12 December: 5.6 µg/m³, 0.6× usualZnojmoZnojmo, 1 December: 33.2 µg/m³, 3.2× usualZnojmo, 2 December: 18.8 µg/m³, 1.8× usualZnojmo, 3 December: 14.3 µg/m³, 1.4× usualZnojmo, 4 December: 23.3 µg/m³, 2.3× usualZnojmo, 5 December: 29.3 µg/m³, 2.8× usualZnojmo, 6 December: 51.4 µg/m³, 5.0× usualZnojmo, 7 December: 17.0 µg/m³, 1.7× usualZnojmo, 8 December: 25.7 µg/m³, 2.5× usualZnojmo, 9 December: 21.5 µg/m³, 2.1× usualZnojmo, 10 December: 18.4 µg/m³, 1.8× usualZnojmo, 11 December: 11.9 µg/m³, 1.2× usualZnojmo, 12 December: 10.7 µg/m³, 1.0× usualZlínZlín, 1 December: 49.5 µg/m³, 4.5× usualZlín, 2 December: 21.4 µg/m³, 1.9× usualZlín, 3 December: 14.7 µg/m³, 1.3× usualZlín, 4 December: 15.2 µg/m³, 1.4× usualZlín, 5 December: 18.0 µg/m³, 1.6× usualZlín, 6 December: 45.1 µg/m³, 4.1× usualZlín, 7 December: 50.2 µg/m³, 4.5× usualZlín, 8 December: 25.9 µg/m³, 2.3× usualZlín, 9 December: 15.0 µg/m³, 1.4× usualZlín, 10 December: 12.3 µg/m³, 1.1× usualZlín, 11 December: 8.7 µg/m³, 0.8× usualZlín, 12 December: 11.6 µg/m³, 1.0× usualAnsfeldenAnsfelden, 1 December: 25.7 µg/m³, 2.4× usualAnsfelden, 2 December: 20.2 µg/m³, 1.9× usualAnsfelden, 3 December: 20.1 µg/m³, 1.9× usualAnsfelden, 4 December: 27.3 µg/m³, 2.6× usualAnsfelden, 5 December: 35.8 µg/m³, 3.4× usualAnsfelden, 6 December: 45.0 µg/m³, 4.2× usualAnsfelden, 7 December: 21.8 µg/m³, 2.1× usualAnsfelden, 8 December: 24.0 µg/m³, 2.3× usualAnsfelden, 9 December: 31.1 µg/m³, 2.9× usualAnsfelden, 10 December: 9.3 µg/m³, 0.9× usualAnsfelden, 11 December: 14.5 µg/m³, 1.4× usualAnsfelden, 12 December: 11.9 µg/m³, 1.1× usualRužomberokRužomberok, 1 December: 33.6 µg/m³, 2.1× usualRužomberok, 2 December: 17.1 µg/m³, 1.1× usualRužomberok, 3 December: 15.9 µg/m³, 1.0× usualRužomberok, 4 December: 25.4 µg/m³, 1.6× usualRužomberok, 5 December: 38.6 µg/m³, 2.5× usualRužomberok, 6 December: 43.1 µg/m³, 2.7× usualRužomberok, 7 December: 40.3 µg/m³, 2.6× usualRužomberok, 8 December: 27.6 µg/m³, 1.8× usualRužomberok, 9 December: 43.6 µg/m³, 2.8× usualRužomberok, 10 December: 21.5 µg/m³, 1.4× usualRužomberok, 11 December: 29.4 µg/m³, 1.9× usualRužomberok, 12 December: 20.2 µg/m³, 1.3× usualHradec KrálovéHradec Králové, 1 December: 36.6 µg/m³, 3.3× usualHradec Králové, 2 December: 18.0 µg/m³, 1.6× usualHradec Králové, 3 December: 11.4 µg/m³, 1.0× usualHradec Králové, 4 December: 18.7 µg/m³, 1.7× usualHradec Králové, 5 December: 21.3 µg/m³, 1.9× usualHradec Králové, 6 December: 37.7 µg/m³, 3.4× usualHradec Králové, 7 December: 43.3 µg/m³, 3.9× usualHradec Králové, 8 December: 22.8 µg/m³, 2.0× usualHradec Králové, 9 December: 15.3 µg/m³, 1.4× usualHradec Králové, 10 December: 10.4 µg/m³, 0.9× usualHradec Králové, 11 December: 4.6 µg/m³, 0.4× usualHradec Králové, 12 December: 5.1 µg/m³, 0.5× usualŽideniceŽidenice, 1 December: 31.1 µg/m³, 3.0× usualŽidenice, 2 December: 17.5 µg/m³, 1.7× usualŽidenice, 3 December: 12.8 µg/m³, 1.2× usualŽidenice, 4 December: 22.9 µg/m³, 2.2× usualŽidenice, 5 December: 25.5 µg/m³, 2.5× usualŽidenice, 6 December: 42.0 µg/m³, 4.0× usualŽidenice, 7 December: 23.2 µg/m³, 2.2× usualŽidenice, 8 December: 25.7 µg/m³, 2.5× usualŽidenice, 9 December: 20.9 µg/m³, 2.0× usualŽidenice, 10 December: 17.9 µg/m³, 1.7× usualŽidenice, 11 December: 18.7 µg/m³, 1.8× usualŽidenice, 12 December: 13.7 µg/m³, 1.3× usualPraguePrague, 1 December: 41.1 µg/m³, 4.5× usualPrague, 2 December: 21.8 µg/m³, 2.4× usualPrague, 3 December: 11.6 µg/m³, 1.3× usualPrague, 4 December: 23.7 µg/m³, 2.6× usualPrague, 5 December: 27.2 µg/m³, 3.0× usualPrague, 6 December: 33.9 µg/m³, 3.7× usualPrague, 7 December: 17.3 µg/m³, 1.9× usualPrague, 8 December: 21.8 µg/m³, 2.4× usualPrague, 9 December: 19.5 µg/m³, 2.1× usualPrague, 10 December: 6.9 µg/m³, 0.8× usualPrague, 11 December: no readingPrague, 12 December: 6.0 µg/m³, 0.7× usualMladá BoleslavMladá Boleslav, 1 December: 35.8 µg/m³, 3.3× usualMladá Boleslav, 2 December: 20.7 µg/m³, 1.9× usualMladá Boleslav, 3 December: 14.4 µg/m³, 1.3× usualMladá Boleslav, 4 December: 19.8 µg/m³, 1.9× usualMladá Boleslav, 5 December: 23.1 µg/m³, 2.2× usualMladá Boleslav, 6 December: 41.0 µg/m³, 3.8× usualMladá Boleslav, 7 December: 39.8 µg/m³, 3.7× usualMladá Boleslav, 8 December: 24.6 µg/m³, 2.3× usualMladá Boleslav, 9 December: 21.1 µg/m³, 2.0× usualMladá Boleslav, 10 December: 14.5 µg/m³, 1.4× usualMladá Boleslav, 11 December: 6.6 µg/m³, 0.6× usualMladá Boleslav, 12 December: 9.5 µg/m³, 0.9× usualPardubicePardubice, 1 December: 35.1 µg/m³, 3.6× usualPardubice, 2 December: 17.9 µg/m³, 1.8× usualPardubice, 3 December: 12.0 µg/m³, 1.2× usualPardubice, 4 December: 18.7 µg/m³, 1.9× usualPardubice, 5 December: 23.2 µg/m³, 2.4× usualPardubice, 6 December: 40.9 µg/m³, 4.2× usualPardubice, 7 December: 37.6 µg/m³, 3.8× usualPardubice, 8 December: 23.1 µg/m³, 2.4× usualPardubice, 9 December: 14.6 µg/m³, 1.5× usualPardubice, 10 December: 9.6 µg/m³, 1.0× usualPardubice, 11 December: no readingPardubice, 12 December: 8.1 µg/m³, 0.8× usualBrnoBrno, 1 December: 31.0 µg/m³, 2.9× usualBrno, 2 December: 14.2 µg/m³, 1.3× usualBrno, 3 December: 11.2 µg/m³, 1.0× usualBrno, 4 December: 21.5 µg/m³, 2.0× usualBrno, 5 December: 24.8 µg/m³, 2.3× usualBrno, 6 December: 38.2 µg/m³, 3.6× usualBrno, 7 December: 18.1 µg/m³, 1.7× usualBrno, 8 December: 22.2 µg/m³, 2.1× usualBrno, 9 December: 18.5 µg/m³, 1.7× usualBrno, 10 December: 19.4 µg/m³, 1.8× usualBrno, 11 December: 22.9 µg/m³, 2.1× usualBrno, 12 December: 13.4 µg/m³, 1.3× usualKladnoKladno, 1 December: 29.5 µg/m³, 3.8× usualKladno, 2 December: 19.4 µg/m³, 2.5× usualKladno, 3 December: 11.2 µg/m³, 1.5× usualKladno, 4 December: 28.2 µg/m³, 3.7× usualKladno, 5 December: 32.6 µg/m³, 4.2× usualKladno, 6 December: 37.5 µg/m³, 4.9× usualKladno, 7 December: 11.8 µg/m³, 1.5× usualKladno, 8 December: 24.7 µg/m³, 3.2× usualKladno, 9 December: 20.6 µg/m³, 2.7× usualKladno, 10 December: no readingKladno, 11 December: no readingKladno, 12 December: no readingKlosterneuburgKlosterneuburg, 1 December: 26.0 µg/m³, 2.4× usualKlosterneuburg, 2 December: 15.1 µg/m³, 1.4× usualKlosterneuburg, 3 December: 12.6 µg/m³, 1.2× usualKlosterneuburg, 4 December: 17.9 µg/m³, 1.7× usualKlosterneuburg, 5 December: 27.1 µg/m³, 2.5× usualKlosterneuburg, 6 December: 37.0 µg/m³, 3.5× usualKlosterneuburg, 7 December: 19.6 µg/m³, 1.8× usualKlosterneuburg, 8 December: 22.2 µg/m³, 2.1× usualKlosterneuburg, 9 December: 20.2 µg/m³, 1.9× usualKlosterneuburg, 10 December: 13.4 µg/m³, 1.3× usualKlosterneuburg, 11 December: 22.6 µg/m³, 2.1× usualKlosterneuburg, 12 December: 11.4 µg/m³, 1.1× usualEisenhüttenstadtEisenhüttenstadt, 1 December: 21.8 µg/m³, 2.8× usualEisenhüttenstadt, 2 December: 14.0 µg/m³, 1.8× usualEisenhüttenstadt, 3 December: 11.8 µg/m³, 1.5× usualEisenhüttenstadt, 4 December: 25.0 µg/m³, 3.2× usualEisenhüttenstadt, 5 December: 38.0 µg/m³, 4.9× usualEisenhüttenstadt, 6 December: 58.8 µg/m³, 7.5× usualEisenhüttenstadt, 7 December: 56.8 µg/m³, 7.3× usualEisenhüttenstadt, 8 December: 26.0 µg/m³, 3.3× usualEisenhüttenstadt, 9 December: 18.1 µg/m³, 2.3× usualEisenhüttenstadt, 10 December: 10.1 µg/m³, 1.3× usualEisenhüttenstadt, 11 December: 3.6 µg/m³, 0.5× usualEisenhüttenstadt, 12 December: 5.4 µg/m³, 0.7× usualTraunTraun, 1 December: 24.7 µg/m³, 2.3× usualTraun, 2 December: 16.8 µg/m³, 1.5× usualTraun, 3 December: 21.7 µg/m³, 2.0× usualTraun, 4 December: 32.4 µg/m³, 3.0× usualTraun, 5 December: 36.6 µg/m³, 3.4× usualTraun, 6 December: 43.8 µg/m³, 4.0× usualTraun, 7 December: 26.5 µg/m³, 2.4× usualTraun, 8 December: 26.2 µg/m³, 2.4× usualTraun, 9 December: 30.1 µg/m³, 2.8× usualTraun, 10 December: 9.9 µg/m³, 0.9× usualTraun, 11 December: 14.9 µg/m³, 1.4× usualTraun, 12 December: 12.2 µg/m³, 1.1× usualLinzLinz, 1 December: 21.8 µg/m³, 2.1× usualLinz, 2 December: 16.9 µg/m³, 1.6× usualLinz, 3 December: 16.5 µg/m³, 1.6× usualLinz, 4 December: 26.3 µg/m³, 2.5× usualLinz, 5 December: 28.5 µg/m³, 2.7× usualLinz, 6 December: 40.2 µg/m³, 3.8× usualLinz, 7 December: 20.0 µg/m³, 1.9× usualLinz, 8 December: 17.3 µg/m³, 1.6× usualLinz, 9 December: 26.9 µg/m³, 2.6× usualLinz, 10 December: 9.4 µg/m³, 0.9× usualLinz, 11 December: 14.9 µg/m³, 1.4× usualLinz, 12 December: 10.3 µg/m³, 1.0× usualBanja LukaBanja Luka, 1 December: 7.8 µg/m³, 0.1× usualBanja Luka, 2 December: 18.9 µg/m³, 0.4× usualBanja Luka, 3 December: 53.3 µg/m³, 1.0× usualBanja Luka, 4 December: 70.1 µg/m³, 1.3× usualBanja Luka, 5 December: 115.0 µg/m³, 2.1× usualBanja Luka, 6 December: 26.1 µg/m³, 0.5× usualBanja Luka, 7 December: 70.0 µg/m³, 1.3× usualBanja Luka, 8 December: 112.0 µg/m³, 2.1× usualBanja Luka, 9 December: no readingBanja Luka, 10 December: no readingBanja Luka, 11 December: no readingBanja Luka, 12 December: 127.0 µg/m³, 2.4× usualStralsundStralsund, 1 December: 13.0 µg/m³, 2.0× usualStralsund, 2 December: 11.6 µg/m³, 1.8× usualStralsund, 3 December: 6.7 µg/m³, 1.0× usualStralsund, 4 December: 17.1 µg/m³, 2.6× usualStralsund, 5 December: 28.3 µg/m³, 4.3× usualStralsund, 6 December: 50.4 µg/m³, 7.6× usualStralsund, 7 December: 74.1 µg/m³, 11× usualStralsund, 8 December: 37.3 µg/m³, 5.7× usualStralsund, 9 December: 26.4 µg/m³, 4.0× usualStralsund, 10 December: 13.2 µg/m³, 2.0× usualStralsund, 11 December: 5.8 µg/m³, 0.9× usualStralsund, 12 December: 5.5 µg/m³, 0.8× usualWismarWismar, 1 December: 15.5 µg/m³, 2.0× usualWismar, 2 December: 14.2 µg/m³, 1.9× usualWismar, 3 December: 16.1 µg/m³, 2.1× usualWismar, 4 December: 15.4 µg/m³, 2.0× usualWismar, 5 December: 31.0 µg/m³, 4.1× usualWismar, 6 December: 60.8 µg/m³, 8.0× usualWismar, 7 December: 56.8 µg/m³, 7.5× usualWismar, 8 December: 15.8 µg/m³, 2.1× usualWismar, 9 December: 16.6 µg/m³, 2.2× usualWismar, 10 December: 6.1 µg/m³, 0.8× usualWismar, 11 December: 5.9 µg/m³, 0.8× usualWismar, 12 December: 6.6 µg/m³, 0.9× usualRostockRostock, 1 December: 11.9 µg/m³, 1.6× usualRostock, 2 December: 12.3 µg/m³, 1.7× usualRostock, 3 December: 9.8 µg/m³, 1.3× usualRostock, 4 December: 17.9 µg/m³, 2.5× usualRostock, 5 December: 33.6 µg/m³, 4.6× usualRostock, 6 December: 57.3 µg/m³, 7.8× usualRostock, 7 December: 60.7 µg/m³, 8.3× usualRostock, 8 December: 20.9 µg/m³, 2.9× usualRostock, 9 December: 19.2 µg/m³, 2.6× usualRostock, 10 December: 9.3 µg/m³, 1.3× usualRostock, 11 December: 7.7 µg/m³, 1.1× usualRostock, 12 December: 7.2 µg/m³, 1.0× usualLübeckLübeck, 1 December: 14.5 µg/m³, 2.8× usualLübeck, 2 December: 12.8 µg/m³, 2.5× usualLübeck, 3 December: 13.7 µg/m³, 2.6× usualLübeck, 4 December: 13.4 µg/m³, 2.6× usualLübeck, 5 December: 25.7 µg/m³, 4.9× usualLübeck, 6 December: 58.9 µg/m³, 11× usualLübeck, 7 December: 54.4 µg/m³, 10× usualLübeck, 8 December: 15.7 µg/m³, 3.0× usualLübeck, 9 December: 13.1 µg/m³, 2.5× usualLübeck, 10 December: 4.0 µg/m³, 0.8× usualLübeck, 11 December: 4.4 µg/m³, 0.8× usualLübeck, 12 December: 6.1 µg/m³, 1.2× usualKielKiel, 1 December: 15.5 µg/m³, 2.9× usualKiel, 2 December: 9.4 µg/m³, 1.8× usualKiel, 3 December: 14.7 µg/m³, 2.8× usualKiel, 4 December: 15.7 µg/m³, 3.0× usualKiel, 5 December: 25.0 µg/m³, 4.7× usualKiel, 6 December: 56.2 µg/m³, 11× usualKiel, 7 December: 56.9 µg/m³, 11× usualKiel, 8 December: 16.3 µg/m³, 3.1× usualKiel, 9 December: 16.2 µg/m³, 3.1× usualKiel, 10 December: 5.7 µg/m³, 1.1× usualKiel, 11 December: 7.9 µg/m³, 1.5× usualKiel, 12 December: 6.5 µg/m³, 1.2× usualGüstrowGüstrow, 1 December: 15.5 µg/m³, 2.3× usualGüstrow, 2 December: 14.9 µg/m³, 2.2× usualGüstrow, 3 December: 13.0 µg/m³, 1.9× usualGüstrow, 4 December: 15.8 µg/m³, 2.4× usualGüstrow, 5 December: 34.0 µg/m³, 5.1× usualGüstrow, 6 December: 56.4 µg/m³, 8.4× usualGüstrow, 7 December: 44.5 µg/m³, 6.6× usualGüstrow, 8 December: 16.6 µg/m³, 2.5× usualGüstrow, 9 December: 16.6 µg/m³, 2.5× usualGüstrow, 10 December: 6.4 µg/m³, 1.0× usualGüstrow, 11 December: 5.6 µg/m³, 0.8× usualGüstrow, 12 December: 8.1 µg/m³, 1.2× usualSchwedt (Oder)Schwedt (Oder), 1 December: 13.3 µg/m³, 1.8× usualSchwedt (Oder), 2 December: 10.5 µg/m³, 1.4× usualSchwedt (Oder), 3 December: 9.1 µg/m³, 1.2× usualSchwedt (Oder), 4 December: 20.4 µg/m³, 2.7× usualSchwedt (Oder), 5 December: 33.9 µg/m³, 4.5× usualSchwedt (Oder), 6 December: 47.3 µg/m³, 6.3× usualSchwedt (Oder), 7 December: 46.8 µg/m³, 6.2× usualSchwedt (Oder), 8 December: 31.7 µg/m³, 4.2× usualSchwedt (Oder), 9 December: 23.1 µg/m³, 3.1× usualSchwedt (Oder), 10 December: 9.8 µg/m³, 1.3× usualSchwedt (Oder), 11 December: 4.0 µg/m³, 0.5× usualSchwedt (Oder), 12 December: 6.5 µg/m³, 0.9× usualEberswaldeEberswalde, 1 December: 12.0 µg/m³, 2.3× usualEberswalde, 2 December: 12.7 µg/m³, 2.4× usualEberswalde, 3 December: 10.7 µg/m³, 2.0× usualEberswalde, 4 December: 19.1 µg/m³, 3.6× usualEberswalde, 5 December: 31.3 µg/m³, 5.9× usualEberswalde, 6 December: 46.3 µg/m³, 8.7× usualEberswalde, 7 December: 35.4 µg/m³, 6.7× usualEberswalde, 8 December: 20.6 µg/m³, 3.9× usualEberswalde, 9 December: 19.4 µg/m³, 3.7× usualEberswalde, 10 December: 8.8 µg/m³, 1.7× usualEberswalde, 11 December: 4.3 µg/m³, 0.8× usualEberswalde, 12 December: 5.8 µg/m³, 1.1× usualStrausbergStrausberg, 1 December: 12.5 µg/m³, 1.8× usualStrausberg, 2 December: 10.7 µg/m³, 1.5× usualStrausberg, 3 December: 12.2 µg/m³, 1.7× usualStrausberg, 4 December: 18.3 µg/m³, 2.6× usualStrausberg, 5 December: 32.5 µg/m³, 4.6× usualStrausberg, 6 December: 42.5 µg/m³, 6.1× usualStrausberg, 7 December: 17.5 µg/m³, 2.5× usualStrausberg, 8 December: 20.1 µg/m³, 2.9× usualStrausberg, 9 December: 16.1 µg/m³, 2.3× usualStrausberg, 10 December: 6.6 µg/m³, 0.9× usualStrausberg, 11 December: 3.4 µg/m³, 0.5× usualStrausberg, 12 December: 6.1 µg/m³, 0.9× usualBernau bei BerlinBernau bei Berlin, 1 December: 16.3 µg/m³, 1.9× usualBernau bei Berlin, 2 December: 12.7 µg/m³, 1.4× usualBernau bei Berlin, 3 December: 14.4 µg/m³, 1.6× usualBernau bei Berlin, 4 December: 20.2 µg/m³, 2.3× usualBernau bei Berlin, 5 December: 32.4 µg/m³, 3.7× usualBernau bei Berlin, 6 December: 39.8 µg/m³, 4.5× usualBernau bei Berlin, 7 December: 22.7 µg/m³, 2.6× usualBernau bei Berlin, 8 December: 21.2 µg/m³, 2.4× usualBernau bei Berlin, 9 December: 20.6 µg/m³, 2.3× usualBernau bei Berlin, 10 December: 8.2 µg/m³, 0.9× usualBernau bei Berlin, 11 December: 5.8 µg/m³, 0.7× usualBernau bei Berlin, 12 December: 8.9 µg/m³, 1.0× usualČeské BudějoviceČeské Budějovice, 1 December: 23.2 µg/m³, 2.7× usualČeské Budějovice, 2 December: 21.5 µg/m³, 2.5× usualČeské Budějovice, 3 December: 12.8 µg/m³, 1.5× usualČeské Budějovice, 4 December: 19.3 µg/m³, 2.2× usualČeské Budějovice, 5 December: 26.7 µg/m³, 3.1× usualČeské Budějovice, 6 December: 39.5 µg/m³, 4.5× usualČeské Budějovice, 7 December: 30.1 µg/m³, 3.5× usualČeské Budějovice, 8 December: 20.8 µg/m³, 2.4× usualČeské Budějovice, 9 December: 16.5 µg/m³, 1.9× usualČeské Budějovice, 10 December: 11.1 µg/m³, 1.3× usualČeské Budějovice, 11 December: no readingČeské Budějovice, 12 December: 7.8 µg/m³, 0.9× usualDejDej, 1 December: 32.3 µg/m³, 1.0× usualDej, 2 December: 37.7 µg/m³, 1.2× usualDej, 3 December: 15.5 µg/m³, 0.5× usualDej, 4 December: 26.1 µg/m³, 0.8× usualDej, 5 December: 38.8 µg/m³, 1.2× usualDej, 6 December: 69.1 µg/m³, 2.2× usualDej, 7 December: 50.5 µg/m³, 1.6× usualDej, 8 December: 16.5 µg/m³, 0.5× usualDej, 9 December: 21.0 µg/m³, 0.7× usualDej, 10 December: 24.6 µg/m³, 0.8× usualDej, 11 December: 34.3 µg/m³, 1.1× usualDej, 12 December: 43.9 µg/m³, 1.4× usualPrešovPrešov, 1 December: 24.0 µg/m³, 1.5× usualPrešov, 2 December: 10.3 µg/m³, 0.7× usualPrešov, 3 December: 17.3 µg/m³, 1.1× usualPrešov, 4 December: 25.9 µg/m³, 1.6× usualPrešov, 5 December: 27.7 µg/m³, 1.8× usualPrešov, 6 December: 49.7 µg/m³, 3.2× usualPrešov, 7 December: 34.5 µg/m³, 2.2× usualPrešov, 8 December: 30.9 µg/m³, 2.0× usualPrešov, 9 December: 26.7 µg/m³, 1.7× usualPrešov, 10 December: 18.1 µg/m³, 1.2× usualPrešov, 11 December: 15.8 µg/m³, 1.0× usualPrešov, 12 December: 19.5 µg/m³, 1.2× usualItzehoeItzehoe, 1 December: 11.7 µg/m³, 2.1× usualItzehoe, 2 December: 9.7 µg/m³, 1.7× usualItzehoe, 3 December: 13.9 µg/m³, 2.4× usualItzehoe, 4 December: 12.6 µg/m³, 2.2× usualItzehoe, 5 December: 22.6 µg/m³, 4.0× usualItzehoe, 6 December: 49.5 µg/m³, 8.7× usualItzehoe, 7 December: 43.7 µg/m³, 7.7× usualItzehoe, 8 December: 16.6 µg/m³, 2.9× usualItzehoe, 9 December: 11.0 µg/m³, 1.9× usualItzehoe, 10 December: 3.9 µg/m³, 0.7× usualItzehoe, 11 December: 5.0 µg/m³, 0.9× usualItzehoe, 12 December: 7.9 µg/m³, 1.4× usualGrazGraz, 1 December: 26.7 µg/m³, 1.4× usualGraz, 2 December: 11.9 µg/m³, 0.6× usualGraz, 3 December: 13.5 µg/m³, 0.7× usualGraz, 4 December: 24.1 µg/m³, 1.2× usualGraz, 5 December: 31.6 µg/m³, 1.6× usualGraz, 6 December: 47.2 µg/m³, 2.4× usualGraz, 7 December: 21.7 µg/m³, 1.1× usualGraz, 8 December: 33.0 µg/m³, 1.7× usualGraz, 9 December: 35.4 µg/m³, 1.8× usualGraz, 10 December: 38.1 µg/m³, 2.0× usualGraz, 11 December: 42.9 µg/m³, 2.2× usualGraz, 12 December: 45.9 µg/m³, 2.4× usualHamburgHamburg, 1 December: 16.4 µg/m³, 2.3× usualHamburg, 2 December: 12.4 µg/m³, 1.7× usualHamburg, 3 December: 16.4 µg/m³, 2.3× usualHamburg, 4 December: 15.1 µg/m³, 2.1× usualHamburg, 5 December: 21.1 µg/m³, 2.9× usualHamburg, 6 December: 45.1 µg/m³, 6.3× usualHamburg, 7 December: 29.2 µg/m³, 4.1× usualHamburg, 8 December: 19.4 µg/m³, 2.7× usualHamburg, 9 December: 12.8 µg/m³, 1.8× usualHamburg, 10 December: 5.5 µg/m³, 0.8× usualHamburg, 11 December: 6.8 µg/m³, 0.9× usualHamburg, 12 December: 10.5 µg/m³, 1.5× usualHumennéHumenné, 1 December: 17.5 µg/m³, 1.1× usualHumenné, 2 December: 10.8 µg/m³, 0.7× usualHumenné, 3 December: 17.7 µg/m³, 1.1× usualHumenné, 4 December: 23.0 µg/m³, 1.4× usualHumenné, 5 December: 26.2 µg/m³, 1.6× usualHumenné, 6 December: 36.5 µg/m³, 2.3× usualHumenné, 7 December: 44.8 µg/m³, 2.8× usualHumenné, 8 December: 32.4 µg/m³, 2.0× usualHumenné, 9 December: 24.2 µg/m³, 1.5× usualHumenné, 10 December: 25.3 µg/m³, 1.6× usualHumenné, 11 December: 20.9 µg/m³, 1.3× usualHumenné, 12 December: 22.6 µg/m³, 1.4× usualPartizánskePartizánske, 1 December: 23.8 µg/m³, 1.8× usualPartizánske, 2 December: 15.3 µg/m³, 1.1× usualPartizánske, 3 December: 9.2 µg/m³, 0.7× usualPartizánske, 4 December: 16.4 µg/m³, 1.2× usualPartizánske, 5 December: 15.3 µg/m³, 1.1× usualPartizánske, 6 December: 33.2 µg/m³, 2.5× usualPartizánske, 7 December: 42.0 µg/m³, 3.1× usualPartizánske, 8 December: 25.8 µg/m³, 1.9× usualPartizánske, 9 December: 22.3 µg/m³, 1.7× usualPartizánske, 10 December: 24.8 µg/m³, 1.8× usualPartizánske, 11 December: 32.4 µg/m³, 2.4× usualPartizánske, 12 December: 36.3 µg/m³, 2.7× usualCluj-NapocaCluj-Napoca, 1 December: 30.8 µg/m³, 1.8× usualCluj-Napoca, 2 December: 19.6 µg/m³, 1.1× usualCluj-Napoca, 3 December: 12.1 µg/m³, 0.7× usualCluj-Napoca, 4 December: 15.0 µg/m³, 0.9× usualCluj-Napoca, 5 December: 25.8 µg/m³, 1.5× usualCluj-Napoca, 6 December: 38.0 µg/m³, 2.2× usualCluj-Napoca, 7 December: 30.8 µg/m³, 1.8× usualCluj-Napoca, 8 December: 15.9 µg/m³, 0.9× usualCluj-Napoca, 9 December: 16.3 µg/m³, 0.9× usualCluj-Napoca, 10 December: 16.6 µg/m³, 0.9× usualCluj-Napoca, 11 December: 24.8 µg/m³, 1.4× usualCluj-Napoca, 12 December: 34.0 µg/m³, 1.9× usualFlensburgFlensburg, 1 December: 6.9 µg/m³, 1.1× usualFlensburg, 2 December: 9.3 µg/m³, 1.5× usualFlensburg, 3 December: 11.6 µg/m³, 1.8× usualFlensburg, 4 December: 14.0 µg/m³, 2.2× usualFlensburg, 5 December: 16.7 µg/m³, 2.7× usualFlensburg, 6 December: 33.0 µg/m³, 5.2× usualFlensburg, 7 December: 37.3 µg/m³, 5.9× usualFlensburg, 8 December: 14.4 µg/m³, 2.3× usualFlensburg, 9 December: 14.6 µg/m³, 2.3× usualFlensburg, 10 December: 6.2 µg/m³, 1.0× usualFlensburg, 11 December: 5.4 µg/m³, 0.9× usualFlensburg, 12 December: 5.4 µg/m³, 0.9× usualPrievidzaPrievidza, 1 December: 22.4 µg/m³, 1.7× usualPrievidza, 2 December: 12.9 µg/m³, 1.0× usualPrievidza, 3 December: 12.0 µg/m³, 0.9× usualPrievidza, 4 December: 16.2 µg/m³, 1.2× usualPrievidza, 5 December: 14.9 µg/m³, 1.1× usualPrievidza, 6 December: 22.1 µg/m³, 1.7× usualPrievidza, 7 December: 40.8 µg/m³, 3.1× usualPrievidza, 8 December: 22.7 µg/m³, 1.7× usualPrievidza, 9 December: 21.0 µg/m³, 1.6× usualPrievidza, 10 December: 18.5 µg/m³, 1.4× usualPrievidza, 11 December: 29.0 µg/m³, 2.2× usualPrievidza, 12 December: 27.4 µg/m³, 2.1× usualSarajevoSarajevo, 1 December: 18.4 µg/m³, 0.4× usualSarajevo, 2 December: 24.9 µg/m³, 0.5× usualSarajevo, 3 December: 23.2 µg/m³, 0.4× usualSarajevo, 4 December: 52.5 µg/m³, 1.0× usualSarajevo, 5 December: 52.0 µg/m³, 1.0× usualSarajevo, 6 December: 44.3 µg/m³, 0.8× usualSarajevo, 7 December: no readingSarajevo, 8 December: 46.6 µg/m³, 0.9× usualSarajevo, 9 December: 108.0 µg/m³, 2.1× usualSarajevo, 10 December: 162.0 µg/m³, 3.1× usualSarajevo, 11 December: 161.0 µg/m³, 3.1× usualSarajevo, 12 December: 144.0 µg/m³, 2.8× usual1 Dec357911
The 60 cities with the highest readings of 107, 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
LübeckSchleswig-Holstein, Germany3 58.96 December5.211×
StralsundMecklenburg-Vorpommern, Germany4 74.17 December6.611×
KielSchleswig-Holstein, Germany3 56.97 December5.311×
Český TěšínMoravian-Silesian Region, Czechia5 103.08 December10.310×
Frýdek-MístekMoravian-Silesian Region, Czechia4 97.07 December10.29.5×
TřinecMoravian-Silesian Region, Czechia3 104.07 December11.09.5×
OpavaMoravian-Silesian Region, Czechia5 98.47 December10.59.4×
EberswaldeBrandenburg, Germany3 46.36 December5.38.7×
ItzehoeSchleswig-Holstein, Germany2 49.56 December5.78.7×
BohumínMoravian-Silesian Region, Czechia5 92.17 December10.88.5×
GüstrowMecklenburg-Vorpommern, Germany3 56.46 December6.78.4×
RostockMecklenburg-Vorpommern, Germany3 60.77 December7.38.3×
OstravaMoravian-Silesian Region, Czechia6 99.87 December12.18.2×
WismarMecklenburg-Vorpommern, Germany3 60.86 December7.68.0×
HavířovMoravian-Silesian Region, Czechia5 96.57 December12.47.8×
TepliceÚstí nad Labem Region, Czechia5 75.17 December9.97.6×
EisenhüttenstadtBrandenburg, Germany5 58.86 December7.87.5×
KadaňÚstí nad Labem Region, Czechia2 53.46 December7.37.3×
MostÚstí nad Labem Region, Czechia5 54.16 December7.47.3×
Frankfurt (Oder)Brandenburg, Germany4 53.66 December7.96.8×
PřerovOlomouc Region, Czechia3 86.87 December12.96.7×
LitvínovÚstí nad Labem Region, Czechia5 55.06 December8.66.4×
Schwedt (Oder)Brandenburg, Germany4 47.36 December7.56.3×
HamburgHamburg, Germany2 45.16 December7.26.3×
StrausbergBrandenburg, Germany2 42.56 December7.06.1×
Valašské MeziříčíZlín, Czechia3 75.87 December12.56.1×
FlensburgSchleswig-Holstein, Germany2 37.37 December6.35.9×
KroměřížZlín, Czechia2 52.97 December9.35.7×
Ústí nad LabemÚstí nad Labem Region, Czechia5 54.07 December9.75.6×
NeuruppinBrandenburg, Germany2 37.06 December6.75.5×
BerounCentral Bohemia, Czechia6 66.56 December12.45.4×
DěčínÚstí nad Labem Region, Czechia4 68.77 December13.05.3×
MalmöSkåne, Sweden2 25.87 December4.85.2×
BurghausenBavaria, Germany1 34.75 December6.95.0×
ZnojmoSouth Moravian, Czechia3 51.46 December10.35.0×
MartinŽilina Region, Slovakia6 55.66 December11.34.9×
KladnoCentral Bohemia, Czechia3 37.56 December7.74.9×
OlomoucOlomouc Region, Czechia3 64.97 December13.74.7×
WittenbergeBrandenburg, Germany1 27.16 December5.94.6×
PopradPrešov Region, Slovakia1 31.87 December7.04.5×
České BudějoviceSouth Bohemian Region, Czechia3 39.56 December8.74.5×
Bernau bei BerlinBrandenburg, Germany2 39.86 December8.84.5×
ZlínZlín, Czechia3 50.27 December11.14.5×
PraguePrague, Czechia2 41.11 December9.24.5×
KelheimBavaria, Germany1 27.95 December6.44.4×
SokolovCarlsbad Region, Czechia2 28.05 December6.54.3×
Karlova VesBratislava Region, Slovakia1 28.86 December6.74.3×
ŽilinaŽilina Region, Slovakia5 54.87 December12.94.2×
AnsfeldenUpper Austria, Austria4 45.06 December10.64.2×
PardubicePardubice Region, Czechia2 40.96 December9.84.2×
LiberecLiberec Region, Czechia1 36.41 December8.94.1×
ŽideniceSouth Moravian, Czechia3 42.06 December10.44.0×
TraunUpper Austria, Austria6 43.86 December10.94.0×
KonstanzBaden-Wurttemberg, Germany1 25.04 December6.34.0×
PerchtoldsdorfLower Austria, Austria2 34.06 December8.64.0×
FalkenseeBrandenburg, Germany1 26.45 December6.73.9×
PilsenPlzeň Region, Czechia2 32.95 December8.53.9×
Hradec KrálovéHradec Králové Region, Czechia2 43.37 December11.23.9×
NeuenhagenBrandenburg, Germany2 30.56 December7.93.9×
Mladá BoleslavCentral Bohemia, Czechia2 41.06 December10.73.8×
LinzUpper Austria, Austria4 40.26 December10.53.8×
KleinmachnowBrandenburg, Germany2 26.45 December7.03.8×
SteyrUpper Austria, Austria2 31.06 December8.33.7×
Spišská Nová VesKošice Region, Slovakia6 59.07 December16.03.7×
AugsburgBavaria, Germany1 25.44 December6.93.7×
LubnjowBrandenburg, Germany1 25.05 December6.83.7×
WelsUpper Austria, Austria4 33.85 December9.33.6×
BrnoSouth Moravian, Czechia1 38.26 December10.73.6×
MödlingLower Austria, Austria2 34.66 December9.73.6×
PassauBavaria, Germany3 35.86 December10.23.5×
KlosterneuburgLower Austria, Austria2 37.06 December10.73.5×
BadenLower Austria, Austria2 29.26 December8.53.4×
Neu-UlmBavaria, Germany1 26.24 December7.73.4×
ViennaVienna, Austria1 30.26 December9.13.3×
TraunreutBavaria, Germany1 26.54 December8.03.3×
UlmBaden-Wurttemberg, Germany1 27.54 December8.53.2×
Sankt PöltenLower Austria, Austria2 30.86 December9.63.2×
PrešovPrešov Region, Slovakia2 49.76 December15.73.2×
PrievidzaTrenčín Region, Slovakia1 40.87 December13.13.1×
PartizánskeTrenčín Region, Slovakia2 42.07 December13.53.1×
SarajevoFederation of B&H, Bosnia and Herzegovina1 162.010 December52.33.1×
AmstettenLower Austria, Austria2 31.86 December10.43.1×
TrenčínTrenčín Region, Slovakia3 35.46 December11.63.1×
NauenBrandenburg, Germany1 25.15 December8.43.0×
TübingenBaden-Wurttemberg, Germany1 26.24 December9.02.9×
BerlinState of Berlin, Germany2 32.76 December11.42.9×
DunaújvárosFejér, Hungary2 36.09 December12.62.9×
TrnavaTrnava Region, Slovakia1 30.812 December10.92.8×
HumennéPrešov Region, Slovakia3 44.87 December16.02.8×
RužomberokŽilina Region, Slovakia4 43.69 December15.72.8×
Banská BystricaBanská Bystrica Region, Slovakia2 33.07 December11.92.8×
HandlováTrenčín Region, Slovakia1 28.01 December10.62.6×
SenicaTrnava Region, Slovakia2 26.56 December10.22.6×
TeltowBrandenburg, Germany2 30.26 December12.02.5×
GrazStyria, Austria1 47.26 December19.42.4×
Žiar nad HronomBanská Bystrica Region, Slovakia1 27.38 December11.32.4×
Banja LukaSrpska, Bosnia and Herzegovina1 127.012 December53.72.4×
WormsRheinland-Pfalz, Germany1 27.24 December11.72.3×
WolfsbergCarinthia, Austria1 33.36 December15.02.2×
DejCluj County, Romania1 69.16 December31.42.2×
ZvolenBanská Bystrica Region, Slovakia2 32.91 December15.12.2×
Klagenfurt am WörtherseeCarinthia, Austria1 28.76 December13.22.2×
Cluj-NapocaCluj County, Romania1 38.06 December17.52.2×
Vranov nad TopľouPrešov Region, Slovakia1 33.47 December15.92.1×
NitraNitra Region, Slovakia1 27.56 December13.32.1×
KošiceKošice Region, Slovakia1 35.69 December17.42.0×
LiberpolisCounty of Osijek-Baranja, Croatia1 30.79 December15.32.0×

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 Czechia

Number 2 of 14 episodes in Germany and Czechia since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 14.

Use this page

SmogRank, Eastern Europe, December 2023: 107 cities with PM2.5 at twice their usual or more, 4 to 9 December 2023, smogrank.com/episodes/2023-12-eastern-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.