SmogRank / History / February 28, 2023

Most polluted cities on February 28, 2023

1,197 cities ranked by their average PM2.5 over the day; the worst was Radomsko, Poland, at 89.4 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 28, 2023. All episodes.

← Radomsko 89.4 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for February 28, 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. 1RadomskoŁódź Voivodeship, Poland
    1756.0×
  2. 2AugustówPodlasie, Poland
    1685.3×
  3. 3WłocławekKujawsko-Pomorskie, Poland
    1655.0×
  4. 4ZamośćLublin, Poland
    1564.2×
  5. 5KościanGreater Poland, Poland
    1554.1×
  6. 6RadomMazovia, Poland
    1533.9×
  7. 7KutnoŁódź Voivodeship, Poland
    1503.7×
  8. 8ŻyrardówMazovia, Poland
    1433.5×
  9. 9RzeszówSubcarpathia, Poland
    1413.5×
  10. 10Nakło nad NoteciąKujawsko-Pomorskie, Poland
    1373.3×
  11. 11GevgelijaGevgelija, North Macedonia
    1373.3×
  12. 12DębicaSubcarpathia, Poland
    1353.3×
  13. 13RacibórzSilesia, Poland
    1323.2×
  14. 14StarachowiceŚwiętokrzyskie, Poland
    1303.2×
  15. 15OtwockMazovia, Poland
    1293.1×
  16. 16LęborkPomerania, Poland
    1273.1×
  17. 16KaliszGreater Poland, Poland
    1273.1×
  18. 18ŁaskŁódź Voivodeship, Poland
    1273.1×
  19. 19LegionowoMazovia, Poland
    1222.9×
  20. 20TetovoTetovo, North Macedonia
    1222.9×
  21. 21KłodzkoLower Silesia, Poland
    1212.9×
  22. 22JarosławSubcarpathia, Poland
    1202.9×
  23. 23LublinLublin, Poland
    1172.8×
  24. 23BydgoszczKujawsko-Pomorskie, Poland
    1172.8×
  25. 25WawerMazovia, Poland
    1172.8×
  26. 26MielecSubcarpathia, Poland
    1152.7×
  27. 27TarnówLesser Poland, Poland
    1152.7×
  28. 28KościerzynaPomerania, Poland
    1132.7×
  29. 29PruszkówMazovia, Poland
    1092.6×
  30. 30SzczecinWest Pomerania, Poland
    1062.5×
  31. 31OhridOhrid, North Macedonia
    1052.5×
  32. 32GostivarGostivar, North Macedonia
    1042.5×
  33. 33JacksonMississippi, United States
    1032.4×
  34. 34KorçëKorçë County, Albania
    1022.4×
  35. 35StrumicaStrumica, North Macedonia
    992.3×
  36. 36PrilepPrilep, North Macedonia
    992.3×
  37. 37KielceŚwiętokrzyskie, Poland
    982.3×
  38. 38Novo MestoUrban Municipality of Novo Mesto, Slovenia
    962.2×
  39. 39Jastrzębie ZdrójSilesia, Poland
    962.2×
  40. 40NysaOpole Voivodeship, Poland
    942.1×
  41. 41OstravaMoravian-Silesian Region, Czechia
    942.1×
  42. 42GrajewoPodlasie, Poland
    932.1×
  43. 43KozániWest Macedonia, Greece
    912.0×
  44. 43RužomberokŽilina Region, Slovakia
    912.0×
  45. 45MitrovicëMitrovica, Kosovo
    912.0×
  46. 46ChaniáCrete, Greece
    912.0×
  47. 47SkopjeGrad Skopje, North Macedonia
    902.0×
  48. 47KatowiceSilesia, Poland
    902.0×
  49. 47Jelenia GóraLower Silesia, Poland
    902.0×
  50. 47Bielsko-BialaSilesia, Poland
    902.0×
  51. 51WarsawMazovia, Poland
    892.0×
  52. 51ToruńKujawsko-Pomorskie, Poland
    892.0×
  53. 53Gorzów WielkopolskiLubusz, Poland
    892.0×
  54. 54NiskoSubcarpathia, Poland
    892.0×
  55. 55PoznańGreater Poland, Poland
    881.9×
  56. 56AsprópyrgosAttica, Greece
    881.9×
  57. 57AthensAttica, Greece
    871.9×
  58. 58LučenecBanská Bystrica Region, Slovakia
    861.9×
  59. 58ŚwiecieKujawsko-Pomorskie, Poland
    861.9×
  60. 60PłockMazovia, Poland
    861.9×
  61. 61Cluj-NapocaCluj County, Romania
    851.8×
  62. 62PrzemyślSubcarpathia, Poland
    841.8×
  63. 63SallanchesAuvergne-Rhône-Alpes, France
    841.8×
  64. 63WrocławLower Silesia, Poland
    841.8×
  65. 63ŁódźŁódź Voivodeship, Poland
    841.8×
  66. 66SiedlceMazovia, Poland
    841.8×
  67. 67ŁukówLublin, Poland
    831.8×
  68. 68Banja LukaSrpska, Bosnia and Herzegovina
    831.8×
  69. 69Valašské MeziříčíZlín, Czechia
    831.7×
  70. 70Kędzierzyn-KoźleOpole Voivodeship, Poland
    821.7×
  71. 71Konstancin-JeziornaMazovia, Poland
    821.7×
  72. 71KavadarciKavadarci, North Macedonia
    821.7×
  73. 73KarvináMoravian-Silesian Region, Czechia
    821.7×
  74. 74GjilanGjilan, Kosovo
    811.7×
  75. 75KrosnoSubcarpathia, Poland
    811.7×
  76. 76AcharnésAttica, Greece
    811.7×
  77. 76ŽilinaŽilina Region, Slovakia
    811.7×
  78. 76MariglianoCampania, Italy
    811.7×
  79. 79Phenix CityAlabama, United States
    811.7×
  80. 80BiałystokPodlasie, Poland
    811.7×
  81. 80BohumínMoravian-Silesian Region, Czechia
    811.7×
  82. 80TrussvilleAlabama, United States
    811.7×
  83. 83BelgradeCentral Serbia, Serbia
    801.7×
  84. 84Spišská Nová VesKošice Region, Slovakia
    801.6×
  85. 84KrakówLesser Poland, Poland
    801.6×
  86. 84KoprivnicaKoprivnica-Križevci, Croatia
    801.6×
  87. 87HavířovMoravian-Silesian Region, Czechia
    801.6×
  88. 87KranjUrban Municipality of Kranj, Slovenia
    801.6×
  89. 89Frýdek-MístekMoravian-Silesian Region, Czechia
    791.6×
  90. 90TřinecMoravian-Silesian Region, Czechia
    791.6×
  91. 90OpavaMoravian-Silesian Region, Czechia
    791.6×
  92. 90Warner RobinsGeorgia, United States
    791.6×
  93. 93Český TěšínMoravian-Silesian Region, Czechia
    791.6×
  94. 94PiraeusAttica, Greece
    781.6×
  95. 94KochaniKochani, North Macedonia
    781.6×
  96. 94CeljeUrban Municipality of Celje, Slovenia
    781.6×
  97. 97KroměřížZlín, Czechia
    781.6×
  98. 98ŚwinoujścieWest Pomerania, Poland
    781.6×
  99. 99KrapkowiceOpole Voivodeship, Poland
    781.6×
  100. 100PúchovTrenčín Region, Slovakia
    771.6×
  101. 101KętrzynWarmia-Masuria, Poland
    771.5×
  102. 102PułtuskMazovia, Poland
    771.5×
  103. 102AlbertvilleAuvergne-Rhône-Alpes, France
    771.5×
  104. 104OpoleOpole Voivodeship, Poland
    771.5×
  105. 105ColumbusGeorgia, United States
    761.5×
  106. 106HandlováTrenčín Region, Slovakia
    751.5×
  107. 106JihlavaVysocina, Czechia
    751.5×
  108. 108DěčínÚstí nad Labem Region, Czechia
    751.5×
  109. 109PejëPec, Kosovo
    751.5×
  110. 109IlindenIlinden, North Macedonia
    751.5×
  111. 109EdinburgTexas, United States
    751.5×
  112. 112ČadcaŽilina Region, Slovakia
    741.4×
  113. 113JasłoSubcarpathia, Poland
    741.4×
  114. 113HodonínSouth Moravian, Czechia
    741.4×
  115. 113LjubljanaLjubljana, Slovenia
    741.4×
  116. 116MontgomeryAlabama, United States
    741.4×
  117. 117KrefeldNorth Rhine-Westphalia, Germany
    741.4×
  118. 117UstkaPomerania, Poland
    741.4×
  119. 117SulphurLouisiana, United States
    741.4×
  120. 120ŻaryLubusz, Poland
    741.4×
  121. 121NairobiNairobi County, Kenya
    731.4×
  122. 121DurrësDurrës County, Albania
    731.4×
  123. 123HraniceOlomouc Region, Czechia
    731.4×
  124. 124ZlínZlín, Czechia
    731.4×
  125. 125IrákleionCrete, Greece
    731.4×
  126. 126KhalándrionAttica, Greece
    721.4×
  127. 126KlosterneuburgLower Austria, Austria
    721.4×
  128. 126MeylanAuvergne-Rhône-Alpes, France
    721.4×
  129. 126Banská BystricaBanská Bystrica Region, Slovakia
    721.4×
  130. 126HattiesburgMississippi, United States
    721.4×
  131. 131PřerovOlomouc Region, Czechia
    721.4×
  132. 131CasamassimaApulia, Italy
    721.4×
  133. 131TrbovljeMunicipality of Trbovlje, Slovenia
    721.4×
  134. 134PerchtoldsdorfLower Austria, Austria
    721.4×
  135. 134TrnavaTrnava Region, Slovakia
    721.4×
  136. 136FredrikstadØstfold, Norway
    711.3×
  137. 137PrizrenPrizren, Kosovo
    711.3×
  138. 137HoustonTexas, United States
    711.3×
  139. 139LiberecLiberec Region, Czechia
    701.3×
  140. 140LaredoTexas, United States
    701.3×
  141. 141OlomoucOlomouc Region, Czechia
    701.3×
  142. 142BailénAndalusia, Spain
    701.3×
  143. 142GrenobleAuvergne-Rhône-Alpes, France
    701.3×
  144. 142PartizánskeTrenčín Region, Slovakia
    701.3×
  145. 142MartinŽilina Region, Slovakia
    701.3×
  146. 142PtujUrban Municipality of Ptuj, Slovenia
    701.3×
  147. 142BihaćFederation of B&H, Bosnia and Herzegovina
    701.3×
  148. 148Little RockArkansas, United States
    691.3×
  149. 149East RidgeTennessee, United States
    691.3×
  150. 150TrenčínTrenčín Region, Slovakia
    691.2×
  151. 150Coconut CreekFlorida, United States
    691.2×
  152. 152BéthuneHauts-de-France, France
    691.2×
  153. 152SenicaTrnava Region, Slovakia
    691.2×
  154. 152ŽideniceSouth Moravian, Czechia
    691.2×
  155. 155WarsteinNorth Rhine-Westphalia, Germany
    691.2×
  156. 156DurangoBasque Country, Spain
    681.2×
  157. 157MalackyBratislava Region, Slovakia
    681.2×
  158. 157Zielona GóraLubusz, Poland
    681.2×
  159. 159OlsztynWarmia-Masuria, Poland
    681.2×
  160. 159LecceApulia, Italy
    681.2×
  161. 161SarpsborgØstfold, Norway
    681.2×
  162. 162AlbanyGeorgia, United States
    681.2×
  163. 163VilniusVilnius, Lithuania
    671.2×
  164. 163BitolaBitola, North Macedonia
    671.2×
  165. 163ViennaVienna, Austria
    671.2×
  166. 166Hradec KrálovéHradec Králové Region, Czechia
    671.2×
  167. 166BogatyniaLower Silesia, Poland
    671.2×
  168. 166MariborUrban Municipality of Maribor, Slovenia
    671.2×
  169. 169Devínska Nová VesBratislava Region, Slovakia
    671.2×
  170. 169OriaBasque Country, Spain
    671.2×
  171. 171Kempten (Allgäu)Bavaria, Germany
    671.2×
  172. 171ChambéryAuvergne-Rhône-Alpes, France
    671.2×
  173. 173Sankt PöltenLower Austria, Austria
    671.2×
  174. 173MödlingLower Austria, Austria
    671.2×
  175. 173ManosqueProvence-Alpes-Côte d'Azur, France
    671.2×
  176. 173Liptovský Mikulᚎilina Region, Slovakia
    671.2×
  177. 173West FargoNorth Dakota, United States
    671.2×
  178. 178HernaniBasque Country, Spain
    661.2×
  179. 178ChalmetteLouisiana, United States
    661.2×
  180. 178Missouri CityTexas, United States
    661.2×
  181. 181BaytownTexas, United States
    661.2×
  182. 182HernandoMississippi, United States
    661.1×
  183. 182PasadenaTexas, United States
    661.1×
  184. 184BadenLower Austria, Austria
    661.1×
  185. 184Mission BendTexas, United States
    661.1×
  186. 186TrierRheinland-Pfalz, Germany
    661.1×
  187. 186SenecBratislava Region, Slovakia
    661.1×
  188. 186GdańskPomerania, Poland
    661.1×
  189. 186SavonaLiguria, Italy
    661.1×
  190. 186Cava Dè TirreniCampania, Italy
    661.1×
  191. 191AmstettenLower Austria, Austria
    651.1×
  192. 191SarcellesÎle-de-France, France
    651.1×
  193. 193AnsfeldenUpper Austria, Austria
    651.1×
  194. 194SavannahGeorgia, United States
    651.1×
  195. 195Klagenfurt am WörtherseeCarinthia, Austria
    651.1×
  196. 195ValdostaGeorgia, United States
    651.1×
  197. 195Corpus ChristiTexas, United States
    651.1×
  198. 198SteyrUpper Austria, Austria
    641.1×
  199. 198LisieuxNormandy, France
    641.1×
  200. 200PylaíaCentral Macedonia, Greece
    641.1×

Top 200 of 1,197 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 28, 2023, smogrank.com/history/2023-02-28 (accessed 2 Oct 2026).

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