SmogRank / History / February 23, 2023

Most polluted cities on February 23, 2023

1,187 cities ranked by their average PM2.5 over the day; the worst was Banja Luka, Bosnia and Herzegovina, at 91.8 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 23, 2023. All episodes.

← Banja Luka 91.8 µg/m³ 90 µg/m³15 WHO 24-hour guideline
Every city ranked for February 23, 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. 1Banja LukaSrpska, Bosnia and Herzegovina
    1766.1×
  2. 2MariglianoCampania, Italy
    1655.0×
  3. 3KranjUrban Municipality of Kranj, Slovenia
    1544.0×
  4. 4SkopjeGrad Skopje, North Macedonia
    1543.9×
  5. 5KoprivnicaKoprivnica-Križevci, Croatia
    1533.9×
  6. 6BolzanoTrentino-Alto Adige, Italy
    1523.8×
  7. 7AvellinoCampania, Italy
    1503.7×
  8. 8PrilepPrilep, North Macedonia
    1503.7×
  9. 9KoperUrban Municipality of Koper, Slovenia
    1463.6×
  10. 10GjilanGjilan, Kosovo
    1453.6×
  11. 11PtujUrban Municipality of Ptuj, Slovenia
    1443.5×
  12. 12TrbovljeMunicipality of Trbovlje, Slovenia
    1443.5×
  13. 13LjubljanaLjubljana, Slovenia
    1403.4×
  14. 14TetovoTetovo, North Macedonia
    1403.4×
  15. 15GevgelijaGevgelija, North Macedonia
    1363.3×
  16. 16Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1343.3×
  17. 16CeljeUrban Municipality of Celje, Slovenia
    1343.3×
  18. 18GostivarGostivar, North Macedonia
    1313.2×
  19. 19BeneventoCampania, Italy
    1273.1×
  20. 20KavadarciKavadarci, North Macedonia
    1253.0×
  21. 21Český TěšínMoravian-Silesian Region, Czechia
    1222.9×
  22. 22KarvináMoravian-Silesian Region, Czechia
    1222.9×
  23. 23AthensAttica, Greece
    1212.9×
  24. 24RacibórzSilesia, Poland
    1202.9×
  25. 24Jastrzębie ZdrójSilesia, Poland
    1202.9×
  26. 26KościanGreater Poland, Poland
    1182.8×
  27. 27Jelenia GóraLower Silesia, Poland
    1172.8×
  28. 27BihaćFederation of B&H, Bosnia and Herzegovina
    1172.8×
  29. 29MitrovicëMitrovica, Kosovo
    1162.8×
  30. 30HavířovMoravian-Silesian Region, Czechia
    1122.7×
  31. 31ValenciaValencia, Spain
    1122.7×
  32. 31OstravaMoravian-Silesian Region, Czechia
    1122.7×
  33. 31NysaOpole Voivodeship, Poland
    1122.7×
  34. 34BelgradeCentral Serbia, Serbia
    1122.7×
  35. 35GalatinaApulia, Italy
    1112.6×
  36. 36Nocera InferioreCampania, Italy
    1092.6×
  37. 37MostarFederation of B&H, Bosnia and Herzegovina
    1072.5×
  38. 38TorreviejaValencia, Spain
    1072.5×
  39. 39IlindenIlinden, North Macedonia
    1062.5×
  40. 40AndriaApulia, Italy
    1042.5×
  41. 41OhridOhrid, North Macedonia
    1042.4×
  42. 42WrocławLower Silesia, Poland
    1022.4×
  43. 42Nakło nad NoteciąKujawsko-Pomorskie, Poland
    1022.4×
  44. 44OpavaMoravian-Silesian Region, Czechia
    1002.4×
  45. 45BariApulia, Italy
    1002.3×
  46. 46Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France
    992.3×
  47. 47StrumicaStrumica, North Macedonia
    992.3×
  48. 48MarratxíBalearic Islands, Spain
    982.3×
  49. 49KrapkowiceOpole Voivodeship, Poland
    982.3×
  50. 50Falconara MarittimaThe Marches, Italy
    982.3×
  51. 51KaliszGreater Poland, Poland
    982.3×
  52. 52TurinPiedmont, Italy
    972.3×
  53. 53Cava Dè TirreniCampania, Italy
    972.3×
  54. 54Bielsko-BialaSilesia, Poland
    962.2×
  55. 55NeuwiedRheinland-Pfalz, Germany
    962.2×
  56. 56Ceglie MessapicaApulia, Italy
    962.2×
  57. 56San Felice A CancelloCampania, Italy
    962.2×
  58. 58BailénAndalusia, Spain
    952.2×
  59. 59WolfsbergCarinthia, Austria
    952.2×
  60. 60ČadcaŽilina Region, Slovakia
    942.1×
  61. 60SzczecinWest Pomerania, Poland
    942.1×
  62. 62TarantoApulia, Italy
    942.1×
  63. 63KłodzkoLower Silesia, Poland
    932.1×
  64. 63ModugnoApulia, Italy
    932.1×
  65. 63BarlettaApulia, Italy
    932.1×
  66. 66KorçëKorçë County, Albania
    932.1×
  67. 66DurrësDurrës County, Albania
    932.1×
  68. 68LitvínovÚstí nad Labem Region, Czechia
    932.1×
  69. 69LecceApulia, Italy
    922.1×
  70. 70BohumínMoravian-Silesian Region, Czechia
    922.1×
  71. 71AcharnésAttica, Greece
    922.1×
  72. 71ThessaloníkiCentral Macedonia, Greece
    922.1×
  73. 73TorrentValencia, Spain
    912.1×
  74. 73Ribarroja del TuriaValencia, Spain
    912.1×
  75. 73MünsterNorth Rhine-Westphalia, Germany
    912.1×
  76. 76KoblenzRheinland-Pfalz, Germany
    912.0×
  77. 76SalernoCampania, Italy
    912.0×
  78. 78AsprópyrgosAttica, Greece
    912.0×
  79. 78WłocławekKujawsko-Pomorskie, Poland
    912.0×
  80. 78MonopoliApulia, Italy
    912.0×
  81. 81BielefeldNorth Rhine-Westphalia, Germany
    902.0×
  82. 81JesiThe Marches, Italy
    902.0×
  83. 83SolingenNorth Rhine-Westphalia, Germany
    902.0×
  84. 83LuceraApulia, Italy
    902.0×
  85. 85KatowiceSilesia, Poland
    902.0×
  86. 86SchwerteNorth Rhine-Westphalia, Germany
    902.0×
  87. 86Bitterfeld-WolfenSaxony-Anhalt, Germany
    902.0×
  88. 88BitolaBitola, North Macedonia
    892.0×
  89. 89VillenaValencia, Spain
    892.0×
  90. 89Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    892.0×
  91. 89AcerraCampania, Italy
    892.0×
  92. 92DěčínÚstí nad Labem Region, Czechia
    892.0×
  93. 93AarschotFlanders, Belgium
    892.0×
  94. 94ŽilinaŽilina Region, Slovakia
    881.9×
  95. 95DortmundNorth Rhine-Westphalia, Germany
    881.9×
  96. 96VenloLimburg, The Netherlands
    881.9×
  97. 96WillebroekFlanders, Belgium
    881.9×
  98. 96Ludwigshafen am RheinRheinland-Pfalz, Germany
    881.9×
  99. 99MelillaMelilla, Spain
    881.9×
  100. 100TeltowBrandenburg, Germany
    871.9×
  101. 100PesaroThe Marches, Italy
    871.9×
  102. 102Kędzierzyn-KoźleOpole Voivodeship, Poland
    871.9×
  103. 103HagenNorth Rhine-Westphalia, Germany
    871.9×
  104. 104PristinaPristina, Kosovo
    871.9×
  105. 105GrazStyria, Austria
    861.9×
  106. 106KölnNorth Rhine-Westphalia, Germany
    861.9×
  107. 107MechelenFlanders, Belgium
    861.9×
  108. 107BerlinState of Berlin, Germany
    861.9×
  109. 107Gorzów WielkopolskiLubusz, Poland
    861.9×
  110. 107AostaAosta Valley, Italy
    861.9×
  111. 111Cluj-NapocaCluj County, Romania
    861.8×
  112. 112BrindisiApulia, Italy
    851.8×
  113. 113KöthenSaxony-Anhalt, Germany
    851.8×
  114. 114BorkenNorth Rhine-Westphalia, Germany
    851.8×
  115. 114ChambéryAuvergne-Rhône-Alpes, France
    851.8×
  116. 116TepliceÚstí nad Labem Region, Czechia
    851.8×
  117. 117IzegemFlanders, Belgium
    851.8×
  118. 117WeselNorth Rhine-Westphalia, Germany
    851.8×
  119. 117OldenburgLower Saxony, Germany
    851.8×
  120. 117IngolstadtBavaria, Germany
    851.8×
  121. 121Kosovo PoljePristina, Kosovo
    851.8×
  122. 121Grao de MurviedroValencia, Spain
    851.8×
  123. 121WaregemFlanders, Belgium
    851.8×
  124. 121AnconaThe Marches, Italy
    851.8×
  125. 121MariborUrban Municipality of Maribor, Slovenia
    851.8×
  126. 126KochaniKochani, North Macedonia
    841.8×
  127. 126MostÚstí nad Labem Region, Czechia
    841.8×
  128. 126KadaňÚstí nad Labem Region, Czechia
    841.8×
  129. 126OpoleOpole Voivodeship, Poland
    841.8×
  130. 130Spišská Nová VesKošice Region, Slovakia
    841.8×
  131. 130SaguntoValencia, Spain
    841.8×
  132. 132PiraeusAttica, Greece
    841.8×
  133. 132BambergBavaria, Germany
    841.8×
  134. 132FoggiaApulia, Italy
    841.8×
  135. 135MonsWallonia, Belgium
    841.8×
  136. 135GenkFlanders, Belgium
    841.8×
  137. 135OberhausenNorth Rhine-Westphalia, Germany
    841.8×
  138. 135PoznańGreater Poland, Poland
    841.8×
  139. 139WeißenfelsSaxony-Anhalt, Germany
    841.8×
  140. 139JüchenNorth Rhine-Westphalia, Germany
    841.8×
  141. 139MeylanAuvergne-Rhône-Alpes, France
    841.8×
  142. 139Ústí nad LabemÚstí nad Labem Region, Czechia
    841.8×
  143. 139KrakówLesser Poland, Poland
    841.8×
  144. 144LęborkPomerania, Poland
    831.8×
  145. 144CuencaCastille-La Mancha, Spain
    831.8×
  146. 146MainzRheinland-Pfalz, Germany
    831.7×
  147. 146DattelnNorth Rhine-Westphalia, Germany
    831.7×
  148. 146LyonAuvergne-Rhône-Alpes, France
    831.7×
  149. 149AntwerpFlanders, Belgium
    821.7×
  150. 149GrenobleAuvergne-Rhône-Alpes, France
    821.7×
  151. 149JihlavaVysocina, Czechia
    821.7×
  152. 152WuppertalNorth Rhine-Westphalia, Germany
    821.7×
  153. 152LučenecBanská Bystrica Region, Slovakia
    821.7×
  154. 154BurrianaValencia, Spain
    821.7×
  155. 154Halle (Saale)Saxony-Anhalt, Germany
    821.7×
  156. 156AlbaceteCastille-La Mancha, Spain
    821.7×
  157. 156GrimbergenFlanders, Belgium
    821.7×
  158. 156WeidenBavaria, Germany
    821.7×
  159. 156DüsseldorfNorth Rhine-Westphalia, Germany
    821.7×
  160. 160BergheimNorth Rhine-Westphalia, Germany
    821.7×
  161. 161TraunUpper Austria, Austria
    821.7×
  162. 161DuisburgNorth Rhine-Westphalia, Germany
    821.7×
  163. 163PejëPec, Kosovo
    811.7×
  164. 163ValenceAuvergne-Rhône-Alpes, France
    811.7×
  165. 163Zielona GóraLubusz, Poland
    811.7×
  166. 166MolFlanders, Belgium
    811.7×
  167. 166HouthalenFlanders, Belgium
    811.7×
  168. 166HasseltFlanders, Belgium
    811.7×
  169. 166OsnabrückLower Saxony, Germany
    811.7×
  170. 166BerounCentral Bohemia, Czechia
    811.7×
  171. 166GdyniaPomerania, Poland
    811.7×
  172. 166HarrisburgPennsylvania, United States
    811.7×
  173. 173BrusselsBrussels Capital, Belgium
    811.7×
  174. 173BremerhavenBremen, Germany
    811.7×
  175. 175LuckenwaldeBrandenburg, Germany
    811.7×
  176. 175NaplesCampania, Italy
    811.7×
  177. 177RoubaixHauts-de-France, France
    811.7×
  178. 178GentFlanders, Belgium
    801.7×
  179. 178RatingenNorth Rhine-Westphalia, Germany
    801.7×
  180. 178BenicàssimValencia, Spain
    801.7×
  181. 181BonnNorth Rhine-Westphalia, Germany
    801.6×
  182. 182EnschedeOverijssel, The Netherlands
    791.6×
  183. 182HattingenNorth Rhine-Westphalia, Germany
    791.6×
  184. 184ArrecifeCanary Islands, Spain
    791.6×
  185. 184CharleroiWallonia, Belgium
    791.6×
  186. 184RintelnLower Saxony, Germany
    791.6×
  187. 184LeverkusenNorth Rhine-Westphalia, Germany
    791.6×
  188. 188LüdenscheidNorth Rhine-Westphalia, Germany
    791.6×
  189. 188EberswaldeBrandenburg, Germany
    791.6×
  190. 188ValenciennesHauts-de-France, France
    791.6×
  191. 191EvergemFlanders, Belgium
    791.6×
  192. 191BremenBremen, Germany
    791.6×
  193. 193NairobiNairobi County, Kenya
    781.6×
  194. 193Klagenfurt am WörtherseeCarinthia, Austria
    781.6×
  195. 193MenenFlanders, Belgium
    781.6×
  196. 193OytenLower Saxony, Germany
    781.6×
  197. 193DelmenhorstLower Saxony, Germany
    781.6×
  198. 198RēzekneRēzekne, Latvia
    781.6×
  199. 198DębicaSubcarpathia, Poland
    781.6×
  200. 198BeverenFlanders, Belgium
    781.6×

Top 200 of 1,187 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 23, 2023, smogrank.com/history/2023-02-23 (accessed 2 Oct 2026).

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