SmogRank / History / February 3, 2023

Most polluted cities on February 3, 2023

1,171 cities ranked by their average PM2.5 over the day; the worst was Marigliano, Italy, at 67.8 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 3, 2023. All episodes.

← Marigliano 67.8 µg/m³ 60 µg/m³15 WHO 24-hour guideline
Every city ranked for February 3, 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. 1MariglianoCampania, Italy
    1604.5×
  2. 2Banja LukaSrpska, Bosnia and Herzegovina
    1564.2×
  3. 3KoperUrban Municipality of Koper, Slovenia
    1383.4×
  4. 4North OgdenUtah, United States
    1313.2×
  5. 5West JordanUtah, United States
    1313.2×
  6. 6MillcreekUtah, United States
    1283.1×
  7. 7OhridOhrid, North Macedonia
    1273.1×
  8. 8Nocera InferioreCampania, Italy
    1212.9×
  9. 9AcerraCampania, Italy
    1192.9×
  10. 10StrumicaStrumica, North Macedonia
    1172.8×
  11. 11AmoraSetúbal, Portugal
    1162.8×
  12. 12KavadarciKavadarci, North Macedonia
    1162.8×
  13. 12KranjUrban Municipality of Kranj, Slovenia
    1162.8×
  14. 14Salt Lake CityUtah, United States
    1152.7×
  15. 15GjilanGjilan, Kosovo
    1142.7×
  16. 16MagnaUtah, United States
    1132.7×
  17. 17West Valley CityUtah, United States
    1122.7×
  18. 18BailénAndalusia, Spain
    1112.6×
  19. 19San Felice A CancelloCampania, Italy
    1092.6×
  20. 20GostivarGostivar, North Macedonia
    1022.4×
  21. 21TetovoTetovo, North Macedonia
    1022.4×
  22. 21PrilepPrilep, North Macedonia
    1022.4×
  23. 21BeneventoCampania, Italy
    1022.4×
  24. 24BitolaBitola, North Macedonia
    1002.4×
  25. 24Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1002.4×
  26. 26KorçëKorçë County, Albania
    982.3×
  27. 27TurinPiedmont, Italy
    962.2×
  28. 28GreeleyColorado, United States
    962.2×
  29. 29ValdemoroMadrid, Spain
    952.2×
  30. 30LugoGalicia, Spain
    942.2×
  31. 31VigoGalicia, Spain
    932.1×
  32. 32SallanchesAuvergne-Rhône-Alpes, France
    922.1×
  33. 33DaxNew Aquitaine, France
    881.9×
  34. 34AvellinoCampania, Italy
    871.9×
  35. 35Cava Dè TirreniCampania, Italy
    861.9×
  36. 36MontaubanOccitanie, France
    861.9×
  37. 37La OrotavaCanary Islands, Spain
    851.8×
  38. 37TarbesOccitanie, France
    851.8×
  39. 39PátraWest Greece, Greece
    851.8×
  40. 40TooeleUtah, United States
    851.8×
  41. 41LecceApulia, Italy
    841.8×
  42. 42SkopjeGrad Skopje, North Macedonia
    841.8×
  43. 43Grants PassOregon, United States
    841.8×
  44. 44GardanneProvence-Alpes-Côte d'Azur, France
    831.8×
  45. 45SevillaAndalusia, Spain
    811.7×
  46. 45GalatinaApulia, Italy
    811.7×
  47. 47HernaniBasque Country, Spain
    811.7×
  48. 48TorreviejaValencia, Spain
    811.7×
  49. 49WłocławekKujawsko-Pomorskie, Poland
    811.7×
  50. 50PesaroThe Marches, Italy
    801.7×
  51. 50CasertaCampania, Italy
    801.7×
  52. 52GetxoBasque Country, Spain
    801.6×
  53. 53LjubljanaLjubljana, Slovenia
    791.6×
  54. 54GevgelijaGevgelija, North Macedonia
    781.6×
  55. 55NaplesCampania, Italy
    781.6×
  56. 56AthensAttica, Greece
    771.6×
  57. 57ToulouseOccitanie, France
    771.5×
  58. 57OviedoAsturias, Spain
    771.5×
  59. 59YakimaWashington, United States
    771.5×
  60. 60Collado-VillalbaMadrid, Spain
    771.5×
  61. 61ValladolidCastille and León, Spain
    761.5×
  62. 62CeljeUrban Municipality of Celje, Slovenia
    761.5×
  63. 62Fort CollinsColorado, United States
    761.5×
  64. 64GijónAsturias, Spain
    751.5×
  65. 65Laudio / LlodioBasque Country, Spain
    751.5×
  66. 66CartagenaMurcia, Spain
    751.5×
  67. 67TrbovljeMunicipality of Trbovlje, Slovenia
    751.5×
  68. 68CorroiosSetúbal, Portugal
    741.4×
  69. 69OremUtah, United States
    741.4×
  70. 70BordeauxNew Aquitaine, France
    741.4×
  71. 70KoprivnicaKoprivnica-Križevci, Croatia
    741.4×
  72. 72DurangoBasque Country, Spain
    741.4×
  73. 73HerrimanUtah, United States
    731.4×
  74. 74CuencaCastille-La Mancha, Spain
    731.4×
  75. 75MarratxíBalearic Islands, Spain
    721.4×
  76. 76San SeveroApulia, Italy
    721.4×
  77. 77LisbonLisbon, Portugal
    711.3×
  78. 77HanfordCalifornia, United States
    711.3×
  79. 79CasamassimaApulia, Italy
    711.3×
  80. 80PalmaBalearic Islands, Spain
    711.3×
  81. 80BilbaoBasque Country, Spain
    711.3×
  82. 82ZaragozaAragon, Spain
    711.3×
  83. 82OriaBasque Country, Spain
    711.3×
  84. 84IlindenIlinden, North Macedonia
    701.3×
  85. 84PauNew Aquitaine, France
    701.3×
  86. 84Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France
    701.3×
  87. 84BihaćFederation of B&H, Bosnia and Herzegovina
    701.3×
  88. 88GranadaAndalusia, Spain
    701.3×
  89. 88MóstolesMadrid, Spain
    701.3×
  90. 88Falconara MarittimaThe Marches, Italy
    701.3×
  91. 88DallasTexas, United States
    701.3×
  92. 92OurenseGalicia, Spain
    691.3×
  93. 92AmorebietaBasque Country, Spain
    691.3×
  94. 92ModestoCalifornia, United States
    691.3×
  95. 92ButteMontana, United States
    691.3×
  96. 96LourdesOccitanie, France
    691.3×
  97. 97ToledoCastille-La Mancha, Spain
    691.3×
  98. 98AngoulêmeNew Aquitaine, France
    691.2×
  99. 98NogalesSonora, Mexico
    691.2×
  100. 100ValenciaValencia, Spain
    691.2×
  101. 100SamaAsturias, Spain
    691.2×
  102. 102Granadilla de AbonaCanary Islands, Spain
    681.2×
  103. 102MeylanAuvergne-Rhône-Alpes, France
    681.2×
  104. 102RužomberokŽilina Region, Slovakia
    681.2×
  105. 102ReddingCalifornia, United States
    681.2×
  106. 106SalernoCampania, Italy
    681.2×
  107. 107MonacoMunicipality of Monaco, Monaco
    681.2×
  108. 108CacémLisbon, Portugal
    681.2×
  109. 108StocktonCalifornia, United States
    681.2×
  110. 110Popeşti-LeordeniIlfov, Romania
    671.2×
  111. 110SacramentoCalifornia, United States
    671.2×
  112. 112NairobiNairobi County, Kenya
    671.2×
  113. 113AnnecyAuvergne-Rhône-Alpes, France
    661.2×
  114. 114La RochelleNew Aquitaine, France
    661.2×
  115. 115SaginawTexas, United States
    661.1×
  116. 116AcharnésAttica, Greece
    661.1×
  117. 117AnconaThe Marches, Italy
    661.1×
  118. 118PiraeusAttica, Greece
    651.1×
  119. 118Mont-de-MarsanNew Aquitaine, France
    651.1×
  120. 120ČadcaŽilina Region, Slovakia
    651.1×
  121. 121HernandoMississippi, United States
    651.1×
  122. 122HuelvaAndalusia, Spain
    651.1×
  123. 122ModugnoApulia, Italy
    651.1×
  124. 124A CoruñaGalicia, Spain
    641.1×
  125. 124BariApulia, Italy
    641.1×
  126. 126ŻyrardówMazovia, Poland
    641.1×
  127. 126Gasteiz / VitoriaBasque Country, Spain
    641.1×
  128. 126DrammenBuskerud, Norway
    641.1×
  129. 129PérigueuxNew Aquitaine, France
    641.1×
  130. 129NiortNew Aquitaine, France
    641.1×
  131. 129Donostia / San SebastiánBasque Country, Spain
    641.1×
  132. 129Fort WorthTexas, United States
    641.1×
  133. 133GdyniaPomerania, Poland
    641.1×
  134. 133SalamancaCastille and León, Spain
    641.1×
  135. 135KochaniKochani, North Macedonia
    641.1×
  136. 135LeónCastille and León, Spain
    641.1×
  137. 135CorcoranCalifornia, United States
    641.1×
  138. 135EugeneOregon, United States
    641.1×
  139. 139JaénAndalusia, Spain
    631.1×
  140. 139Santiago de CompostelaGalicia, Spain
    631.1×
  141. 139HillsboroOregon, United States
    631.1×
  142. 142RodezOccitanie, France
    631.0×
  143. 142Ceglie MessapicaApulia, Italy
    631.0×
  144. 144ToruńKujawsko-Pomorskie, Poland
    631.0×
  145. 144ArteixoGalicia, Spain
    631.0×
  146. 144BakersfieldCalifornia, United States
    631.0×
  147. 147OtwockMazovia, Poland
    631.0×
  148. 147San IsidroCanary Islands, Spain
    631.0×
  149. 149Spišská Nová VesKošice Region, Slovakia
    631.0×
  150. 149PtujUrban Municipality of Ptuj, Slovenia
    631.0×
  151. 149Arden-ArcadeCalifornia, United States
    631.0×
  152. 152LublinLublin, Poland
    631.0×
  153. 153BufteaIlfov, Romania
    621.0×
  154. 153RadomskoŁódź Voivodeship, Poland
    621.0×
  155. 153TarantoApulia, Italy
    621.0×
  156. 153WoodlandCalifornia, United States
    621.0×
  157. 157WawerMazovia, Poland
    621.0×
  158. 157AnnemasseAuvergne-Rhône-Alpes, France
    621.0×
  159. 157PontevedraGalicia, Spain
    621.0×
  160. 160SheridanWyoming, United States
    621.0×
  161. 161MarseilleProvence-Alpes-Côte d'Azur, France
    621.0×
  162. 161AlbertvilleAuvergne-Rhône-Alpes, France
    621.0×
  163. 161FerrolGalicia, Spain
    621.0×
  164. 161Alcalá de HenaresMadrid, Spain
    621.0×
  165. 161TurlockCalifornia, United States
    621.0×
  166. 166CosladaMadrid, Spain
    611.0×
  167. 166MissoulaMontana, United States
    611.0×
  168. 166Spanish ForkUtah, United States
    611.0×
  169. 169RadomMazovia, Poland
    611.0×
  170. 169Santa Cruz de la PalmaCanary Islands, Spain
    611.0×
  171. 169MarignaneProvence-Alpes-Côte d'Azur, France
    611.0×
  172. 172VisbyGotland, Sweden
    611.0×
  173. 172Nakło nad NoteciąKujawsko-Pomorskie, Poland
    611.0×
  174. 172ThorntonColorado, United States
    611.0×
  175. 175VoluntariIlfov, Romania
    611.0×
  176. 175RosevilleCalifornia, United States
    611.0×
  177. 177AsprópyrgosAttica, Greece
    611.0×
  178. 177LučenecBanská Bystrica Region, Slovakia
    611.0×
  179. 177NarónGalicia, Spain
    611.0×
  180. 180GrenobleAuvergne-Rhône-Alpes, France
    610.9×
  181. 180PłockMazovia, Poland
    610.9×
  182. 180PhoenixArizona, United States
    610.9×
  183. 183BucharestBucharest, Romania
    600.9×
  184. 183ArucasCanary Islands, Spain
    600.9×
  185. 183MadridMadrid, Spain
    600.9×
  186. 183LongmontColorado, United States
    600.9×
  187. 187PuertollanoCastille-La Mancha, Spain
    600.9×
  188. 187WolfsbergCarinthia, Austria
    600.9×
  189. 187JesiThe Marches, Italy
    600.9×
  190. 190VillenaValencia, Spain
    600.9×
  191. 191LegionowoMazovia, Poland
    600.9×
  192. 191MoulinsAuvergne-Rhône-Alpes, France
    600.9×
  193. 191CannesProvence-Alpes-Côte d'Azur, France
    600.9×
  194. 191LillehammerInnlandet, Norway
    600.9×
  195. 195Santa Cruz de TenerifeCanary Islands, Spain
    600.9×
  196. 196GjøvikInnlandet, Norway
    590.9×
  197. 196MonopoliApulia, Italy
    590.9×
  198. 198BrindisiApulia, Italy
    590.9×
  199. 198Yuba CityCalifornia, United States
    590.9×
  200. 198Las VegasNevada, United States
    590.9×

Top 200 of 1,171 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 3, 2023, smogrank.com/history/2023-02-03 (accessed 2 Oct 2026).

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