SmogRank / History / February 20, 2023

Most polluted cities on February 20, 2023

1,187 cities ranked by their average PM2.5 over the day; the worst was Banja Luka, Bosnia and Herzegovina, at 69.3 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 20, 2023. All episodes.

← Banja Luka 69.3 µg/m³ 60 µg/m³15 WHO 24-hour guideline
Every city ranked for February 20, 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
    1614.6×
  2. 2OhridOhrid, North Macedonia
    1273.1×
  3. 3MariglianoCampania, Italy
    1243.0×
  4. 4OviedoAsturias, Spain
    1212.9×
  5. 5KorçëKorçë County, Albania
    1212.9×
  6. 6BolzanoTrentino-Alto Adige, Italy
    1172.8×
  7. 7KoperUrban Municipality of Koper, Slovenia
    1162.8×
  8. 8StrumicaStrumica, North Macedonia
    1122.7×
  9. 9VigoGalicia, Spain
    1122.7×
  10. 10TurinPiedmont, Italy
    1112.6×
  11. 11AnconaThe Marches, Italy
    1082.6×
  12. 12ArrecifeCanary Islands, Spain
    1072.5×
  13. 13TetovoTetovo, North Macedonia
    1042.5×
  14. 14GjilanGjilan, Kosovo
    1002.3×
  15. 15CasamassimaApulia, Italy
    972.3×
  16. 16KavadarciKavadarci, North Macedonia
    972.3×
  17. 17KranjUrban Municipality of Kranj, Slovenia
    962.2×
  18. 18ValenciaValencia, Spain
    962.2×
  19. 19GostivarGostivar, North Macedonia
    952.2×
  20. 20PrilepPrilep, North Macedonia
    942.2×
  21. 20LugoGalicia, Spain
    942.2×
  22. 22HernaniBasque Country, Spain
    942.1×
  23. 23DurrësDurrës County, Albania
    942.1×
  24. 24SamaAsturias, Spain
    922.1×
  25. 25AvellinoCampania, Italy
    922.1×
  26. 26SkopjeGrad Skopje, North Macedonia
    912.0×
  27. 27CalahorraLa Rioja, Spain
    912.0×
  28. 28PesaroThe Marches, Italy
    902.0×
  29. 29Puerto del RosarioCanary Islands, Spain
    892.0×
  30. 29NarónGalicia, Spain
    892.0×
  31. 31Novo MestoUrban Municipality of Novo Mesto, Slovenia
    881.9×
  32. 31LjubljanaLjubljana, Slovenia
    881.9×
  33. 33Las Palmas de Gran CanariaCanary Islands, Spain
    871.9×
  34. 33ViveiroGalicia, Spain
    871.9×
  35. 35ZaragozaAragon, Spain
    871.9×
  36. 35Laudio / LlodioBasque Country, Spain
    871.9×
  37. 35BilbaoBasque Country, Spain
    871.9×
  38. 38GijónAsturias, Spain
    861.9×
  39. 39NairobiNairobi County, Kenya
    861.9×
  40. 40AvilésAsturias, Spain
    851.8×
  41. 41GetxoBasque Country, Spain
    851.8×
  42. 42La OrotavaCanary Islands, Spain
    841.8×
  43. 43BariApulia, Italy
    841.8×
  44. 43CeljeUrban Municipality of Celje, Slovenia
    841.8×
  45. 45Santa Cruz de TenerifeCanary Islands, Spain
    831.8×
  46. 46OriaBasque Country, Spain
    831.8×
  47. 47JesiThe Marches, Italy
    831.7×
  48. 47BeneventoCampania, Italy
    831.7×
  49. 49San SeveroApulia, Italy
    831.7×
  50. 49MostarFederation of B&H, Bosnia and Herzegovina
    831.7×
  51. 49San Felice A CancelloCampania, Italy
    831.7×
  52. 52Joué-lès-ToursCentre-Val de Loire, France
    821.7×
  53. 52HanfordCalifornia, United States
    821.7×
  54. 52Arden-ArcadeCalifornia, United States
    821.7×
  55. 55MitrovicëMitrovica, Kosovo
    821.7×
  56. 56DurangoBasque Country, Spain
    821.7×
  57. 57CoulommiersÎle-de-France, France
    811.7×
  58. 58StocktonCalifornia, United States
    811.7×
  59. 59PejëPec, Kosovo
    801.7×
  60. 59FunchalMadeira, Portugal
    801.7×
  61. 61Donostia / San SebastiánBasque Country, Spain
    801.6×
  62. 61TrbovljeMunicipality of Trbovlje, Slovenia
    801.6×
  63. 63MontaubanOccitanie, France
    801.6×
  64. 63Falconara MarittimaThe Marches, Italy
    801.6×
  65. 65ParedesPorto, Portugal
    791.6×
  66. 66Sainte-Geneviève-des-BoisÎle-de-France, France
    791.6×
  67. 67AmorebietaBasque Country, Spain
    781.6×
  68. 68PauNew Aquitaine, France
    781.6×
  69. 69PristinaPristina, Kosovo
    771.6×
  70. 69Cava Dè TirreniCampania, Italy
    771.6×
  71. 71BitolaBitola, North Macedonia
    771.5×
  72. 71ModugnoApulia, Italy
    771.5×
  73. 73OrléansCentre-Val de Loire, France
    771.5×
  74. 74LourdesOccitanie, France
    771.5×
  75. 74OurenseGalicia, Spain
    771.5×
  76. 76ChaniáCrete, Greece
    761.5×
  77. 76BurrianaValencia, Spain
    761.5×
  78. 78FréjusProvence-Alpes-Côte d'Azur, France
    761.5×
  79. 79AostaAosta Valley, Italy
    761.5×
  80. 80MonopoliApulia, Italy
    761.5×
  81. 81Santa Cruz de la PalmaCanary Islands, Spain
    761.5×
  82. 81Le MansPays de la Loire, France
    761.5×
  83. 81A CoruñaGalicia, Spain
    761.5×
  84. 84Spišská Nová VesKošice Region, Slovakia
    751.5×
  85. 84SarcellesÎle-de-France, France
    751.5×
  86. 84NaplesCampania, Italy
    751.5×
  87. 87SacramentoCalifornia, United States
    751.5×
  88. 88NantesPays de la Loire, France
    751.5×
  89. 89TorreviejaValencia, Spain
    751.5×
  90. 89PtujUrban Municipality of Ptuj, Slovenia
    751.5×
  91. 91Santiago de CompostelaGalicia, Spain
    741.4×
  92. 92GalatinaApulia, Italy
    741.4×
  93. 93BihaćFederation of B&H, Bosnia and Herzegovina
    741.4×
  94. 94Kosovo PoljePristina, Kosovo
    731.4×
  95. 94PontevedraGalicia, Spain
    731.4×
  96. 94FerrolGalicia, Spain
    731.4×
  97. 97LuceraApulia, Italy
    731.4×
  98. 97AcerraCampania, Italy
    731.4×
  99. 97CorcoranCalifornia, United States
    731.4×
  100. 100Grao de MurviedroValencia, Spain
    731.4×
  101. 100TarbesOccitanie, France
    731.4×
  102. 100Ceglie MessapicaApulia, Italy
    731.4×
  103. 103Phenix CityAlabama, United States
    721.4×
  104. 104AngersPays de la Loire, France
    721.4×
  105. 105KoprivnicaKoprivnica-Križevci, Croatia
    721.4×
  106. 105VisaliaCalifornia, United States
    721.4×
  107. 107GevgelijaGevgelija, North Macedonia
    721.3×
  108. 107SallanchesAuvergne-Rhône-Alpes, France
    721.3×
  109. 107AltamuraApulia, Italy
    721.3×
  110. 110MelunÎle-de-France, France
    711.3×
  111. 111San IsidroCanary Islands, Spain
    711.3×
  112. 112BurgosCastille and León, Spain
    711.3×
  113. 113ModestoCalifornia, United States
    711.3×
  114. 114ArucasCanary Islands, Spain
    701.3×
  115. 114TurlockCalifornia, United States
    701.3×
  116. 116Klagenfurt am WörtherseeCarinthia, Austria
    701.3×
  117. 116BordeauxNew Aquitaine, France
    701.3×
  118. 118PalmaBalearic Islands, Spain
    701.3×
  119. 119IngenioCanary Islands, Spain
    701.3×
  120. 119TilburgNorth Brabant, The Netherlands
    701.3×
  121. 119Gasteiz / VitoriaBasque Country, Spain
    701.3×
  122. 119Collado-VillalbaMadrid, Spain
    701.3×
  123. 123ChartresCentre-Val de Loire, France
    691.3×
  124. 124MelillaMelilla, Spain
    691.3×
  125. 124GardanneProvence-Alpes-Côte d'Azur, France
    691.3×
  126. 124ValladolidCastille and León, Spain
    691.3×
  127. 124RosevilleCalifornia, United States
    691.3×
  128. 128IlindenIlinden, North Macedonia
    691.3×
  129. 128LalínGalicia, Spain
    691.3×
  130. 130Saint-QuentinHauts-de-France, France
    691.2×
  131. 131AthensAttica, Greece
    691.2×
  132. 131MoulinsAuvergne-Rhône-Alpes, France
    691.2×
  133. 131CasertaCampania, Italy
    691.2×
  134. 134GenkFlanders, Belgium
    691.2×
  135. 134FoggiaApulia, Italy
    691.2×
  136. 136CandelariaCanary Islands, Spain
    681.2×
  137. 136BenicàssimValencia, Spain
    681.2×
  138. 138VitrollesProvence-Alpes-Côte d'Azur, France
    681.2×
  139. 138ToursCentre-Val de Loire, France
    681.2×
  140. 140BermeoBasque Country, Spain
    681.2×
  141. 140Yuba CityCalifornia, United States
    681.2×
  142. 142AcharnésAttica, Greece
    681.2×
  143. 142KapellenFlanders, Belgium
    681.2×
  144. 142RouenNormandy, France
    681.2×
  145. 142ChâteaurouxCentre-Val de Loire, France
    681.2×
  146. 142Nocera InferioreCampania, Italy
    681.2×
  147. 142BakersfieldCalifornia, United States
    681.2×
  148. 148TorrentValencia, Spain
    671.2×
  149. 149AsprópyrgosAttica, Greece
    671.2×
  150. 149KochaniKochani, North Macedonia
    671.2×
  151. 149Ciudad RealCastille-La Mancha, Spain
    671.2×
  152. 149AltamontOregon, United States
    671.2×
  153. 153AmoraSetúbal, Portugal
    671.2×
  154. 153MercedCalifornia, United States
    671.2×
  155. 155BailénAndalusia, Spain
    671.2×
  156. 155Le HavreNormandy, France
    671.2×
  157. 157La Línea de la ConcepciónAndalusia, Spain
    661.2×
  158. 157RambouilletÎle-de-France, France
    661.2×
  159. 159Granadilla de AbonaCanary Islands, Spain
    661.2×
  160. 160MarseilleProvence-Alpes-Côte d'Azur, France
    661.1×
  161. 160ManosqueProvence-Alpes-Côte d'Azur, France
    661.1×
  162. 160AnnecyAuvergne-Rhône-Alpes, France
    661.1×
  163. 160ZarautzBasque Country, Spain
    661.1×
  164. 160LecceApulia, Italy
    661.1×
  165. 165BrindisiApulia, Italy
    661.1×
  166. 166ThessaloníkiCentral Macedonia, Greece
    661.1×
  167. 166DattelnNorth Rhine-Westphalia, Germany
    661.1×
  168. 166Saint-DizierGrand Est, France
    661.1×
  169. 166ParisÎle-de-France, France
    661.1×
  170. 170ToulouseOccitanie, France
    661.1×
  171. 170La SpeziaLiguria, Italy
    661.1×
  172. 170Long BeachCalifornia, United States
    661.1×
  173. 173BeauvaisHauts-de-France, France
    651.1×
  174. 173CosladaMadrid, Spain
    651.1×
  175. 173ColumbusGeorgia, United States
    651.1×
  176. 173Lincoln ParkMichigan, United States
    651.1×
  177. 173West MifflinPennsylvania, United States
    651.1×
  178. 178MarignaneProvence-Alpes-Côte d'Azur, France
    651.1×
  179. 179SevillaAndalusia, Spain
    651.1×
  180. 179La GardeProvence-Alpes-Côte d'Azur, France
    651.1×
  181. 181AgüimesCanary Islands, Spain
    651.1×
  182. 182WoodlandCalifornia, United States
    651.1×
  183. 183Ribarroja del TuriaValencia, Spain
    641.1×
  184. 184BorkenNorth Rhine-Westphalia, Germany
    641.1×
  185. 184RennesBrittany, France
    641.1×
  186. 184TarantoApulia, Italy
    641.1×
  187. 187BourgesCentre-Val de Loire, France
    641.1×
  188. 187PartizánskeTrenčín Region, Slovakia
    641.1×
  189. 187Warner RobinsGeorgia, United States
    641.1×
  190. 190FresnoCalifornia, United States
    641.1×
  191. 191PoitiersNew Aquitaine, France
    631.0×
  192. 191ArteixoGalicia, Spain
    631.0×
  193. 193BielefeldNorth Rhine-Westphalia, Germany
    631.0×
  194. 193MontbéliardBourgogne-Franche-Comté, France
    631.0×
  195. 195CannesProvence-Alpes-Côte d'Azur, France
    631.0×
  196. 195PalenciaCastille and León, Spain
    631.0×
  197. 197StabroekFlanders, Belgium
    631.0×
  198. 197OlivetCentre-Val de Loire, France
    631.0×
  199. 197AngoulêmeNew Aquitaine, France
    631.0×
  200. 200Bourg-en-BresseAuvergne-Rhône-Alpes, France
    621.0×

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 20, 2023, smogrank.com/history/2023-02-20 (accessed 2 Oct 2026).

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