SmogRank / History / February 8, 2023

Most polluted cities on February 8, 2023

1,167 cities ranked by their average PM2.5 over the day; the worst was Ružomberok, Slovakia, at 92.9 µg/m³. Each city's own local calendar day.

OpenAQ's archive, where our readings come from, has almost none for this day. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; many cities elsewhere are missing from this board, not clean. Why.

Bad-air episodes during February 8, 2023. All episodes.

← Ružomberok 92.9 µg/m³ 90 µg/m³15 WHO 24-hour guideline
Every city ranked for February 8, 2023, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1RužomberokŽilina Region, Slovakia
    1776.2×
  2. 2Bielsko-BialaSilesia, Poland
    1655.1×
  3. 3TřinecMoravian-Silesian Region, Czechia
    1614.6×
  4. 4Banja LukaSrpska, Bosnia and Herzegovina
    1594.5×
  5. 5KavadarciKavadarci, North Macedonia
    1574.3×
  6. 6Jelenia GóraLower Silesia, Poland
    1564.2×
  7. 7RacibórzSilesia, Poland
    1554.1×
  8. 8DębicaSubcarpathia, Poland
    1554.1×
  9. 9Liptovský Mikulᚎilina Region, Slovakia
    1554.1×
  10. 10Český TěšínMoravian-Silesian Region, Czechia
    1554.1×
  11. 11Frýdek-MístekMoravian-Silesian Region, Czechia
    1554.1×
  12. 12BohumínMoravian-Silesian Region, Czechia
    1554.1×
  13. 13HavířovMoravian-Silesian Region, Czechia
    1554.0×
  14. 14MartinŽilina Region, Slovakia
    1544.0×
  15. 15MoulinsAuvergne-Rhône-Alpes, France
    1533.9×
  16. 16Valašské MeziříčíZlín, Czechia
    1533.9×
  17. 17Jastrzębie ZdrójSilesia, Poland
    1523.8×
  18. 18Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1513.7×
  19. 19OstravaMoravian-Silesian Region, Czechia
    1473.6×
  20. 20KrapkowiceOpole Voivodeship, Poland
    1473.6×
  21. 21SkopjeGrad Skopje, North Macedonia
    1443.5×
  22. 22KrosnoSubcarpathia, Poland
    1393.4×
  23. 23KarvináMoravian-Silesian Region, Czechia
    1383.4×
  24. 24MostÚstí nad Labem Region, Czechia
    1373.4×
  25. 25KrakówLesser Poland, Poland
    1373.3×
  26. 26Banská BystricaBanská Bystrica Region, Slovakia
    1363.3×
  27. 27WłocławekKujawsko-Pomorskie, Poland
    1353.3×
  28. 27Nakło nad NoteciąKujawsko-Pomorskie, Poland
    1353.3×
  29. 29OpavaMoravian-Silesian Region, Czechia
    1353.3×
  30. 30GostivarGostivar, North Macedonia
    1353.3×
  31. 31GevgelijaGevgelija, North Macedonia
    1293.1×
  32. 32DěčínÚstí nad Labem Region, Czechia
    1283.1×
  33. 33KłodzkoLower Silesia, Poland
    1263.1×
  34. 34NysaOpole Voivodeship, Poland
    1263.0×
  35. 35HraniceOlomouc Region, Czechia
    1263.0×
  36. 35CeljeUrban Municipality of Celje, Slovenia
    1263.0×
  37. 37RzeszówSubcarpathia, Poland
    1253.0×
  38. 38DunkirkHauts-de-France, France
    1253.0×
  39. 39KadaňÚstí nad Labem Region, Czechia
    1243.0×
  40. 40OtwockMazovia, Poland
    1243.0×
  41. 41BerounCentral Bohemia, Czechia
    1222.9×
  42. 42LegionowoMazovia, Poland
    1222.9×
  43. 43TepliceÚstí nad Labem Region, Czechia
    1212.9×
  44. 43PraguePrague, Czechia
    1212.9×
  45. 45SzczecinWest Pomerania, Poland
    1192.9×
  46. 46ŻyrardówMazovia, Poland
    1192.9×
  47. 46RadomskoŁódź Voivodeship, Poland
    1192.9×
  48. 48PřerovOlomouc Region, Czechia
    1192.8×
  49. 49ČadcaŽilina Region, Slovakia
    1182.8×
  50. 50MühlhausenThuringia, Germany
    1182.8×
  51. 51MagdeburgSaxony-Anhalt, Germany
    1172.8×
  52. 52WawerMazovia, Poland
    1172.8×
  53. 52CalaisHauts-de-France, France
    1172.8×
  54. 52KladnoCentral Bohemia, Czechia
    1172.8×
  55. 55ZvolenBanská Bystrica Region, Slovakia
    1172.8×
  56. 55ŽilinaŽilina Region, Slovakia
    1172.8×
  57. 57LublinLublin, Poland
    1162.8×
  58. 58StrumicaStrumica, North Macedonia
    1162.8×
  59. 59RoubaixHauts-de-France, France
    1152.8×
  60. 60AlbanyGeorgia, United States
    1142.7×
  61. 61BihaćFederation of B&H, Bosnia and Herzegovina
    1142.7×
  62. 62KaliszGreater Poland, Poland
    1132.7×
  63. 63Gorzów WielkopolskiLubusz, Poland
    1122.7×
  64. 64NiskoSubcarpathia, Poland
    1112.6×
  65. 65Bitterfeld-WolfenSaxony-Anhalt, Germany
    1112.6×
  66. 65LęborkPomerania, Poland
    1112.6×
  67. 67JasłoSubcarpathia, Poland
    1102.6×
  68. 68PułtuskMazovia, Poland
    1102.6×
  69. 69WaregemFlanders, Belgium
    1092.6×
  70. 70PtujUrban Municipality of Ptuj, Slovenia
    1092.6×
  71. 71MenenFlanders, Belgium
    1082.6×
  72. 72StarachowiceŚwiętokrzyskie, Poland
    1082.6×
  73. 73KroměřížZlín, Czechia
    1072.5×
  74. 73Hradec KrálovéHradec Králové Region, Czechia
    1072.5×
  75. 75Halle (Saale)Saxony-Anhalt, Germany
    1072.5×
  76. 76RadomMazovia, Poland
    1072.5×
  77. 77PardubicePardubice Region, Czechia
    1062.5×
  78. 78TrbovljeMunicipality of Trbovlje, Slovenia
    1062.5×
  79. 79WrocławLower Silesia, Poland
    1062.5×
  80. 80TarnówLesser Poland, Poland
    1052.5×
  81. 80BelgradeCentral Serbia, Serbia
    1052.5×
  82. 82BitolaBitola, North Macedonia
    1042.5×
  83. 83PrilepPrilep, North Macedonia
    1042.5×
  84. 83SallanchesAuvergne-Rhône-Alpes, France
    1042.5×
  85. 83TrenčínTrenčín Region, Slovakia
    1042.5×
  86. 86TetovoTetovo, North Macedonia
    1042.4×
  87. 86Ústí nad LabemÚstí nad Labem Region, Czechia
    1042.4×
  88. 88KatowiceSilesia, Poland
    1032.4×
  89. 89IzegemFlanders, Belgium
    1022.4×
  90. 90ZamośćLublin, Poland
    1012.4×
  91. 91SalzgitterLower Saxony, Germany
    1012.4×
  92. 92BraunschweigLower Saxony, Germany
    1002.3×
  93. 93ErfurtThuringia, Germany
    992.3×
  94. 93ŚwiecieKujawsko-Pomorskie, Poland
    992.3×
  95. 95Mladá BoleslavCentral Bohemia, Czechia
    992.3×
  96. 96KöthenSaxony-Anhalt, Germany
    992.3×
  97. 97MalackyBratislava Region, Slovakia
    992.3×
  98. 98HandlováTrenčín Region, Slovakia
    982.3×
  99. 99DouaiHauts-de-France, France
    982.3×
  100. 100PúchovTrenčín Region, Slovakia
    982.3×
  101. 101Spišská Nová VesKošice Region, Slovakia
    972.3×
  102. 101LjubljanaLjubljana, Slovenia
    972.3×
  103. 103PilsenPlzeň Region, Czechia
    972.2×
  104. 103České BudějoviceSouth Bohemian Region, Czechia
    972.2×
  105. 105BerlinState of Berlin, Germany
    962.2×
  106. 106Cluj-NapocaCluj County, Romania
    962.2×
  107. 106EisenhüttenstadtBrandenburg, Germany
    962.2×
  108. 108NordhausenThuringia, Germany
    962.2×
  109. 108OpoleOpole Voivodeship, Poland
    962.2×
  110. 110KutnoŁódź Voivodeship, Poland
    962.2×
  111. 111HodonínSouth Moravian, Czechia
    952.2×
  112. 112ToruńKujawsko-Pomorskie, Poland
    952.2×
  113. 113Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    952.2×
  114. 114Frankfurt (Oder)Brandenburg, Germany
    952.2×
  115. 115PruszkówMazovia, Poland
    942.2×
  116. 115EberswaldeBrandenburg, Germany
    942.2×
  117. 117RoeselareFlanders, Belgium
    942.1×
  118. 117Saint-MaloBrittany, France
    942.1×
  119. 119JihlavaVysocina, Czechia
    942.1×
  120. 120IlindenIlinden, North Macedonia
    942.1×
  121. 120DreuxCentre-Val de Loire, France
    942.1×
  122. 120ZlínZlín, Czechia
    942.1×
  123. 123PrzemyślSubcarpathia, Poland
    932.1×
  124. 123TeltowBrandenburg, Germany
    932.1×
  125. 123KościerzynaPomerania, Poland
    932.1×
  126. 126GdyniaPomerania, Poland
    932.1×
  127. 127Brandenburg an der HavelBrandenburg, Germany
    932.1×
  128. 127Le HavreNormandy, France
    932.1×
  129. 129CraiovaDolj, Romania
    922.1×
  130. 129KortrijkFlanders, Belgium
    922.1×
  131. 129LitvínovÚstí nad Labem Region, Czechia
    922.1×
  132. 132KranjUrban Municipality of Kranj, Slovenia
    922.1×
  133. 133Saint-BrieucBrittany, France
    912.0×
  134. 133LisieuxNormandy, France
    912.0×
  135. 135AnnemasseAuvergne-Rhône-Alpes, France
    912.0×
  136. 136Hansestadt SalzwedelSaxony-Anhalt, Germany
    902.0×
  137. 137ValenciennesHauts-de-France, France
    902.0×
  138. 137LučenecBanská Bystrica Region, Slovakia
    902.0×
  139. 137PoznańGreater Poland, Poland
    902.0×
  140. 140KoksijdeFlanders, Belgium
    902.0×
  141. 140Bourg-en-BresseAuvergne-Rhône-Alpes, France
    902.0×
  142. 142NeubrandenburgMecklenburg-Vorpommern, Germany
    902.0×
  143. 142PłockMazovia, Poland
    902.0×
  144. 144Burg bei MagdeburgSaxony-Anhalt, Germany
    902.0×
  145. 144AvignonProvence-Alpes-Côte d'Azur, France
    902.0×
  146. 144ŁaskŁódź Voivodeship, Poland
    902.0×
  147. 147KlosterneuburgLower Austria, Austria
    892.0×
  148. 148Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France
    892.0×
  149. 149KielceŚwiętokrzyskie, Poland
    892.0×
  150. 149RixensartWallonia, Belgium
    892.0×
  151. 149SchwerinMecklenburg-Vorpommern, Germany
    892.0×
  152. 149Schwedt (Oder)Brandenburg, Germany
    892.0×
  153. 149GivorsAuvergne-Rhône-Alpes, France
    892.0×
  154. 149AngersPays de la Loire, France
    892.0×
  155. 155Sainte-Geneviève-des-BoisÎle-de-France, France
    892.0×
  156. 156MaldegemFlanders, Belgium
    892.0×
  157. 156WittenbergeBrandenburg, Germany
    892.0×
  158. 156WeißenfelsSaxony-Anhalt, Germany
    892.0×
  159. 156HalberstadtSaxony-Anhalt, Germany
    892.0×
  160. 156Zielona GóraLubusz, Poland
    892.0×
  161. 161ElblągWarmia-Masuria, Poland
    881.9×
  162. 162CodleaBrașov County, Romania
    881.9×
  163. 163Kędzierzyn-KoźleOpole Voivodeship, Poland
    881.9×
  164. 164LuckenwaldeBrandenburg, Germany
    881.9×
  165. 164ChambéryAuvergne-Rhône-Alpes, France
    881.9×
  166. 166HamburgHamburg, Germany
    881.9×
  167. 166GreizThuringia, Germany
    881.9×
  168. 166AnsbachBavaria, Germany
    881.9×
  169. 166ZnojmoSouth Moravian, Czechia
    881.9×
  170. 166ŻaryLubusz, Poland
    881.9×
  171. 171Chalon-sur-SaôneBourgogne-Franche-Comté, France
    881.9×
  172. 172SenicaTrnava Region, Slovakia
    871.9×
  173. 173Bernau bei BerlinBrandenburg, Germany
    871.9×
  174. 173DieppeNormandy, France
    871.9×
  175. 175MeyzieuAuvergne-Rhône-Alpes, France
    871.9×
  176. 175SokolovCarlsbad Region, Czechia
    871.9×
  177. 175East RidgeTennessee, United States
    871.9×
  178. 178OrléansCentre-Val de Loire, France
    871.9×
  179. 178BourgesCentre-Val de Loire, France
    871.9×
  180. 180MarktredwitzBavaria, Germany
    871.9×
  181. 180StocktonCalifornia, United States
    871.9×
  182. 182MariborUrban Municipality of Maribor, Slovenia
    861.9×
  183. 183SiedlceMazovia, Poland
    861.9×
  184. 184JenaThuringia, Germany
    861.9×
  185. 184OlomoucOlomouc Region, Czechia
    861.9×
  186. 186EvergemFlanders, Belgium
    861.8×
  187. 186MelunÎle-de-France, France
    861.8×
  188. 188TrnavaTrnava Region, Slovakia
    851.8×
  189. 188SenecBratislava Region, Slovakia
    851.8×
  190. 190PotsdamBrandenburg, Germany
    851.8×
  191. 191Saint-NazairePays de la Loire, France
    851.8×
  192. 191NantesPays de la Loire, France
    851.8×
  193. 191GrenobleAuvergne-Rhône-Alpes, France
    851.8×
  194. 191CaenNormandy, France
    851.8×
  195. 191KomárnoNitra Region, Slovakia
    851.8×
  196. 191Blankenfelde-MahlowBrandenburg, Germany
    851.8×
  197. 197KochaniKochani, North Macedonia
    851.8×
  198. 197AltenburgThuringia, Germany
    851.8×
  199. 199RostockMecklenburg-Vorpommern, Germany
    851.8×
  200. 199RennesBrittany, France
    851.8×

Top 200 of 1,167 shown.

Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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SmogRank, most polluted cities, PM2.5, February 8, 2023, smogrank.com/history/2023-02-08 (accessed 2 Oct 2026).

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