SmogRank / History / February 21, 2023

Most polluted cities on February 21, 2023

1,183 cities ranked by their average PM2.5 over the day; the worst was Banja Luka, Bosnia and Herzegovina, 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 21, 2023. All episodes.

← Banja Luka 89.4 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for February 21, 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
    1756.0×
  2. 2StrumicaStrumica, North Macedonia
    1543.9×
  3. 3MariglianoCampania, Italy
    1453.5×
  4. 4PauNew Aquitaine, France
    1443.5×
  5. 5GostivarGostivar, North Macedonia
    1433.5×
  6. 6PrilepPrilep, North Macedonia
    1413.5×
  7. 7TetovoTetovo, North Macedonia
    1393.4×
  8. 8KoperUrban Municipality of Koper, Slovenia
    1363.3×
  9. 9Las Palmas de Gran CanariaCanary Islands, Spain
    1283.1×
  10. 10GjilanGjilan, Kosovo
    1243.0×
  11. 11SkopjeGrad Skopje, North Macedonia
    1233.0×
  12. 12Santa Cruz de TenerifeCanary Islands, Spain
    1222.9×
  13. 13La OrotavaCanary Islands, Spain
    1212.9×
  14. 14ArrecifeCanary Islands, Spain
    1202.9×
  15. 15KranjUrban Municipality of Kranj, Slovenia
    1202.9×
  16. 16KavadarciKavadarci, North Macedonia
    1192.8×
  17. 17LjubljanaLjubljana, Slovenia
    1102.6×
  18. 18LourdesOccitanie, France
    1102.6×
  19. 18VigoGalicia, Spain
    1102.6×
  20. 20TrbovljeMunicipality of Trbovlje, Slovenia
    1062.5×
  21. 21TarbesOccitanie, France
    1052.5×
  22. 22Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1042.4×
  23. 23Le HavreNormandy, France
    1032.4×
  24. 24IngenioCanary Islands, Spain
    1032.4×
  25. 25MaspalomasCanary Islands, Spain
    1032.4×
  26. 25AgüimesCanary Islands, Spain
    1032.4×
  27. 27KorçëKorçë County, Albania
    1022.4×
  28. 27OhridOhrid, North Macedonia
    1022.4×
  29. 27BeneventoCampania, Italy
    1022.4×
  30. 27AvellinoCampania, Italy
    1022.4×
  31. 31KoprivnicaKoprivnica-Križevci, Croatia
    1022.4×
  32. 32Nocera InferioreCampania, Italy
    1002.4×
  33. 33San Felice A CancelloCampania, Italy
    992.3×
  34. 34TurinPiedmont, Italy
    992.3×
  35. 35ChaniáCrete, Greece
    982.3×
  36. 35AcerraCampania, Italy
    982.3×
  37. 37BrawleyCalifornia, United States
    982.3×
  38. 38JesiThe Marches, Italy
    972.3×
  39. 39CandelariaCanary Islands, Spain
    972.3×
  40. 40ParisÎle-de-France, France
    962.2×
  41. 41San IsidroCanary Islands, Spain
    962.2×
  42. 42GevgelijaGevgelija, North Macedonia
    952.2×
  43. 43CeljeUrban Municipality of Celje, Slovenia
    952.2×
  44. 44Sainte-Geneviève-des-BoisÎle-de-France, France
    942.2×
  45. 45SamaAsturias, Spain
    932.1×
  46. 46PesaroThe Marches, Italy
    932.1×
  47. 47Granadilla de AbonaCanary Islands, Spain
    932.1×
  48. 48SallanchesAuvergne-Rhône-Alpes, France
    932.1×
  49. 48GijónAsturias, Spain
    932.1×
  50. 50PejëPec, Kosovo
    922.1×
  51. 51ArucasCanary Islands, Spain
    922.1×
  52. 51AnconaThe Marches, Italy
    922.1×
  53. 53Santa Cruz de la PalmaCanary Islands, Spain
    922.1×
  54. 54IlindenIlinden, North Macedonia
    912.1×
  55. 55ValenciaValencia, Spain
    912.0×
  56. 56OviedoAsturias, Spain
    902.0×
  57. 57BailénAndalusia, Spain
    902.0×
  58. 57PtujUrban Municipality of Ptuj, Slovenia
    902.0×
  59. 59Falconara MarittimaThe Marches, Italy
    902.0×
  60. 60NairobiNairobi County, Kenya
    892.0×
  61. 61BolzanoTrentino-Alto Adige, Italy
    892.0×
  62. 61Las VegasNevada, United States
    892.0×
  63. 63LugoGalicia, Spain
    892.0×
  64. 64MitrovicëMitrovica, Kosovo
    881.9×
  65. 64San SeveroApulia, Italy
    881.9×
  66. 66PristinaPristina, Kosovo
    881.9×
  67. 67SarcellesÎle-de-France, France
    881.9×
  68. 68KölnNorth Rhine-Westphalia, Germany
    871.9×
  69. 68AvignonProvence-Alpes-Côte d'Azur, France
    871.9×
  70. 70SolingenNorth Rhine-Westphalia, Germany
    871.9×
  71. 71BelgradeCentral Serbia, Serbia
    871.9×
  72. 71CalahorraLa Rioja, Spain
    871.9×
  73. 73OrléansCentre-Val de Loire, France
    861.8×
  74. 74Chalon-sur-SaôneBourgogne-Franche-Comté, France
    851.8×
  75. 75Puerto del RosarioCanary Islands, Spain
    851.8×
  76. 76Santiago de CompostelaGalicia, Spain
    851.8×
  77. 76CasamassimaApulia, Italy
    851.8×
  78. 78NaplesCampania, Italy
    831.8×
  79. 79LeverkusenNorth Rhine-Westphalia, Germany
    831.8×
  80. 79NarónGalicia, Spain
    831.8×
  81. 81TeldeCanary Islands, Spain
    831.7×
  82. 81DurrësDurrës County, Albania
    831.7×
  83. 83CuencaCastille-La Mancha, Spain
    821.7×
  84. 84GardanneProvence-Alpes-Côte d'Azur, France
    821.7×
  85. 84BilbaoBasque Country, Spain
    821.7×
  86. 86HagenNorth Rhine-Westphalia, Germany
    821.7×
  87. 86RouenNormandy, France
    821.7×
  88. 86AngersPays de la Loire, France
    821.7×
  89. 89FerrolGalicia, Spain
    821.7×
  90. 90AronaCanary Islands, Spain
    811.7×
  91. 91ÉvreuxNormandy, France
    801.7×
  92. 92Kosovo PoljePristina, Kosovo
    801.7×
  93. 92ReimsGrand Est, France
    801.7×
  94. 94AthensAttica, Greece
    801.6×
  95. 94AngletNew Aquitaine, France
    801.6×
  96. 96AachenNorth Rhine-Westphalia, Germany
    801.6×
  97. 96Spring ValleyNevada, United States
    801.6×
  98. 98Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France
    791.6×
  99. 98OlivetCentre-Val de Loire, France
    791.6×
  100. 100BurrianaValencia, Spain
    791.6×
  101. 100BergheimNorth Rhine-Westphalia, Germany
    791.6×
  102. 100LisieuxNormandy, France
    791.6×
  103. 100Laudio / LlodioBasque Country, Spain
    791.6×
  104. 100LeónCastille and León, Spain
    791.6×
  105. 105CoulommiersÎle-de-France, France
    791.6×
  106. 105ČadcaŽilina Region, Slovakia
    791.6×
  107. 107DortmundNorth Rhine-Westphalia, Germany
    781.6×
  108. 108OberhausenNorth Rhine-Westphalia, Germany
    781.6×
  109. 108MünsterNorth Rhine-Westphalia, Germany
    781.6×
  110. 108GelsenkirchenNorth Rhine-Westphalia, Germany
    781.6×
  111. 111A CoruñaGalicia, Spain
    781.6×
  112. 112TorreviejaValencia, Spain
    781.6×
  113. 112ZaragozaAragon, Spain
    781.6×
  114. 114ParedesPorto, Portugal
    771.6×
  115. 114BonnNorth Rhine-Westphalia, Germany
    771.6×
  116. 114CaenNormandy, France
    771.6×
  117. 114BeauvaisHauts-de-France, France
    771.6×
  118. 118ValdemoroMadrid, Spain
    771.5×
  119. 119FunchalMadeira, Portugal
    771.5×
  120. 119BordeauxNew Aquitaine, France
    771.5×
  121. 119FoggiaApulia, Italy
    771.5×
  122. 122BielefeldNorth Rhine-Westphalia, Germany
    771.5×
  123. 122DreuxCentre-Val de Loire, France
    771.5×
  124. 122AlençonNormandy, France
    771.5×
  125. 122ModugnoApulia, Italy
    771.5×
  126. 126TrierRheinland-Pfalz, Germany
    771.5×
  127. 126SchwerteNorth Rhine-Westphalia, Germany
    771.5×
  128. 128DuisburgNorth Rhine-Westphalia, Germany
    761.5×
  129. 128PalenciaCastille and León, Spain
    761.5×
  130. 130Spišská Nová VesKošice Region, Slovakia
    761.5×
  131. 130RijekaPrimorje-Gorski Kotar, Croatia
    761.5×
  132. 132AnnecyAuvergne-Rhône-Alpes, France
    761.5×
  133. 132HernaniBasque Country, Spain
    761.5×
  134. 134SevillaAndalusia, Spain
    761.5×
  135. 134ValladolidCastille and León, Spain
    761.5×
  136. 134LalínGalicia, Spain
    761.5×
  137. 134GetxoBasque Country, Spain
    761.5×
  138. 134BrindisiApulia, Italy
    761.5×
  139. 139ArlesProvence-Alpes-Côte d'Azur, France
    761.5×
  140. 139Gasteiz / VitoriaBasque Country, Spain
    761.5×
  141. 139GalatinaApulia, Italy
    761.5×
  142. 142AsprópyrgosAttica, Greece
    751.5×
  143. 142AcharnésAttica, Greece
    751.5×
  144. 142WormsRheinland-Pfalz, Germany
    751.5×
  145. 145ThessaloníkiCentral Macedonia, Greece
    751.5×
  146. 145KapellenFlanders, Belgium
    751.5×
  147. 147AmoraSetúbal, Portugal
    751.5×
  148. 147WuppertalNorth Rhine-Westphalia, Germany
    751.5×
  149. 147Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    751.5×
  150. 147MelunÎle-de-France, France
    751.5×
  151. 151Saint-MaloBrittany, France
    751.5×
  152. 151AltamuraApulia, Italy
    751.5×
  153. 153ViveiroGalicia, Spain
    751.5×
  154. 153DurangoBasque Country, Spain
    751.5×
  155. 155OndaValencia, Spain
    741.4×
  156. 155BorkenNorth Rhine-Westphalia, Germany
    741.4×
  157. 155Bourg-en-BresseAuvergne-Rhône-Alpes, France
    741.4×
  158. 155BariApulia, Italy
    741.4×
  159. 159UtrechtUtrecht, The Netherlands
    741.4×
  160. 160BitolaBitola, North Macedonia
    741.4×
  161. 160AvilésAsturias, Spain
    741.4×
  162. 162LüdenscheidNorth Rhine-Westphalia, Germany
    741.4×
  163. 162PontevedraGalicia, Spain
    741.4×
  164. 164DaxNew Aquitaine, France
    741.4×
  165. 164LecceApulia, Italy
    741.4×
  166. 164HanfordCalifornia, United States
    741.4×
  167. 164EnterpriseNevada, United States
    741.4×
  168. 168JüchenNorth Rhine-Westphalia, Germany
    741.4×
  169. 168CasertaCampania, Italy
    741.4×
  170. 170MeyzieuAuvergne-Rhône-Alpes, France
    731.4×
  171. 170BloisCentre-Val de Loire, France
    731.4×
  172. 172CorroiosSetúbal, Portugal
    731.4×
  173. 172MarignaneProvence-Alpes-Côte d'Azur, France
    731.4×
  174. 174ToursCentre-Val de Loire, France
    731.4×
  175. 174OriaBasque Country, Spain
    731.4×
  176. 176TroyesGrand Est, France
    731.4×
  177. 176NantesPays de la Loire, France
    731.4×
  178. 176AmorebietaBasque Country, Spain
    731.4×
  179. 176Little RockArkansas, United States
    731.4×
  180. 180DieppeNormandy, France
    731.4×
  181. 180Arroyo GrandeCalifornia, United States
    731.4×
  182. 182MontaubanOccitanie, France
    721.4×
  183. 182MontargisCentre-Val de Loire, France
    721.4×
  184. 182LunelOccitanie, France
    721.4×
  185. 182AostaAosta Valley, Italy
    721.4×
  186. 186RennesBrittany, France
    721.4×
  187. 186Collado-VillalbaMadrid, Spain
    721.4×
  188. 188AmiensHauts-de-France, France
    721.4×
  189. 189KochaniKochani, North Macedonia
    721.4×
  190. 189Saint-QuentinHauts-de-France, France
    721.4×
  191. 189RambouilletÎle-de-France, France
    721.4×
  192. 192ChartresCentre-Val de Loire, France
    721.3×
  193. 193Grao de MurviedroValencia, Spain
    711.3×
  194. 193Cava Dè TirreniCampania, Italy
    711.3×
  195. 195JaénAndalusia, Spain
    711.3×
  196. 195Ciudad RealCastille-La Mancha, Spain
    711.3×
  197. 195CosladaMadrid, Spain
    711.3×
  198. 198MoulinsAuvergne-Rhône-Alpes, France
    711.3×
  199. 199Ludwigshafen am RheinRheinland-Pfalz, Germany
    711.3×
  200. 199MonacoMunicipality of Monaco, Monaco
    711.3×

Top 200 of 1,183 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 21, 2023, smogrank.com/history/2023-02-21 (accessed 2 Oct 2026).

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