SmogRank / History / April 25, 2023

Most polluted cities on April 25, 2023

1,179 cities ranked by their average PM2.5 over the day; the worst was Marratxí, Spain, at 27.2 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.

← Marratxí 27.2 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every city ranked for April 25, 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. 1MarratxíBalearic Islands, Spain
    851.8×
  2. 2Lincoln ParkMichigan, United States
    801.6×
  3. 3StrumicaStrumica, North Macedonia
    701.3×
  4. 4DetroitMichigan, United States
    681.2×
  5. 5Phenix CityAlabama, United States
    681.2×
  6. 6DearbornMichigan, United States
    671.2×
  7. 7OtwockMazovia, Poland
    671.2×
  8. 7EvansvilleIndiana, United States
    671.2×
  9. 7BanningCalifornia, United States
    671.2×
  10. 10SiedlceMazovia, Poland
    671.2×
  11. 11McKeesportPennsylvania, United States
    671.2×
  12. 12WawerMazovia, Poland
    661.2×
  13. 13RedfordMichigan, United States
    661.1×
  14. 14West MifflinPennsylvania, United States
    661.1×
  15. 15GevgelijaGevgelija, North Macedonia
    651.1×
  16. 15BailénAndalusia, Spain
    651.1×
  17. 17LegionowoMazovia, Poland
    641.1×
  18. 18IndioCalifornia, United States
    631.1×
  19. 19AcharnésAttica, Greece
    631.0×
  20. 19ClevelandOhio, United States
    631.0×
  21. 21Warner RobinsGeorgia, United States
    631.0×
  22. 22TaylorMichigan, United States
    621.0×
  23. 23MiddletownOhio, United States
    621.0×
  24. 24YpsilantiMichigan, United States
    611.0×
  25. 24Los AngelesCalifornia, United States
    611.0×
  26. 26ChaniáCrete, Greece
    611.0×
  27. 26Cluj-NapocaCluj County, Romania
    611.0×
  28. 28KielceŚwiętokrzyskie, Poland
    611.0×
  29. 28HoustonTexas, United States
    611.0×
  30. 30AsprópyrgosAttica, Greece
    611.0×
  31. 30Shaker HeightsOhio, United States
    611.0×
  32. 30OntarioCalifornia, United States
    611.0×
  33. 33AthensAttica, Greece
    611.0×
  34. 33GetxoBasque Country, Spain
    611.0×
  35. 33WarrenOhio, United States
    611.0×
  36. 36Iowa CityIowa, United States
    600.9×
  37. 37ThessaloníkiCentral Macedonia, Greece
    600.9×
  38. 37PascagoulaMississippi, United States
    600.9×
  39. 39WarsawMazovia, Poland
    600.9×
  40. 40RadomMazovia, Poland
    600.9×
  41. 40IndianapolisIndiana, United States
    600.9×
  42. 40BellevueNebraska, United States
    600.9×
  43. 43MolineIllinois, United States
    590.9×
  44. 44CantonOhio, United States
    590.9×
  45. 44Santa BarbaraCalifornia, United States
    590.9×
  46. 46East ChicagoIndiana, United States
    590.9×
  47. 46HammondIndiana, United States
    590.9×
  48. 48LiepājaLiepaja, Latvia
    590.9×
  49. 48PruszkówMazovia, Poland
    590.9×
  50. 48La Línea de la ConcepciónAndalusia, Spain
    590.9×
  51. 48HattiesburgMississippi, United States
    590.9×
  52. 52ŁukówLublin, Poland
    580.9×
  53. 52DavenportIowa, United States
    580.9×
  54. 52DublinOhio, United States
    580.9×
  55. 52MedinaOhio, United States
    580.9×
  56. 56RichmondCalifornia, United States
    580.9×
  57. 57SpringfieldOhio, United States
    580.9×
  58. 58NorwoodOhio, United States
    580.9×
  59. 59ArrecifeCanary Islands, Spain
    580.8×
  60. 60San IsidroCanary Islands, Spain
    580.8×
  61. 60PrichardAlabama, United States
    580.8×
  62. 60Calumet CityIllinois, United States
    580.8×
  63. 63BucharestBucharest, Romania
    570.8×
  64. 63JolietIllinois, United States
    570.8×
  65. 63Jurupa ValleyCalifornia, United States
    570.8×
  66. 63Simi ValleyCalifornia, United States
    570.8×
  67. 67Puerto del RosarioCanary Islands, Spain
    570.8×
  68. 67SpringfieldIllinois, United States
    570.8×
  69. 67PasadenaTexas, United States
    570.8×
  70. 67South BendIndiana, United States
    570.8×
  71. 71PátraWest Greece, Greece
    570.8×
  72. 71NiskoSubcarpathia, Poland
    570.8×
  73. 71CártamaAndalusia, Spain
    570.8×
  74. 71St. LouisMissouri, United States
    570.8×
  75. 71Mission BendTexas, United States
    570.8×
  76. 71WilkinsburgPennsylvania, United States
    570.8×
  77. 77ŻyrardówMazovia, Poland
    570.8×
  78. 77EłkWarmia-Masuria, Poland
    570.8×
  79. 77Bielsko-BialaSilesia, Poland
    570.8×
  80. 77MariglianoCampania, Italy
    570.8×
  81. 77ChalmetteLouisiana, United States
    570.8×
  82. 77GulfportMississippi, United States
    570.8×
  83. 77YoungstownOhio, United States
    570.8×
  84. 84ClintonIowa, United States
    570.8×
  85. 84El CajonCalifornia, United States
    570.8×
  86. 86Popeşti-LeordeniIlfov, Romania
    560.8×
  87. 86Konstancin-JeziornaMazovia, Poland
    560.8×
  88. 86PrilepPrilep, North Macedonia
    560.8×
  89. 86Jastrzębie ZdrójSilesia, Poland
    560.8×
  90. 86DecaturIllinois, United States
    560.8×
  91. 86KennerLouisiana, United States
    560.8×
  92. 86ElkhartIndiana, United States
    560.8×
  93. 93JeffersonvilleIndiana, United States
    560.8×
  94. 93East RidgeTennessee, United States
    560.8×
  95. 93BaytownTexas, United States
    560.8×
  96. 93AndersonIndiana, United States
    560.8×
  97. 93LafayetteIndiana, United States
    560.8×
  98. 98StarachowiceŚwiętokrzyskie, Poland
    560.8×
  99. 98OlsztynWarmia-Masuria, Poland
    560.8×
  100. 98GrajewoPodlasie, Poland
    560.8×
  101. 98HernandoMississippi, United States
    560.8×
  102. 98NapervilleIllinois, United States
    560.8×
  103. 103SteubenvilleOhio, United States
    560.8×
  104. 103HermitagePennsylvania, United States
    560.8×
  105. 105Sainte-Geneviève-des-BoisÎle-de-France, France
    560.8×
  106. 105Ferry PassFlorida, United States
    560.8×
  107. 105CincinnatiOhio, United States
    560.8×
  108. 105OaklandCalifornia, United States
    560.8×
  109. 109HelsinkiUusimaa, Finland
    550.8×
  110. 109BufteaIlfov, Romania
    550.8×
  111. 109KętrzynWarmia-Masuria, Poland
    550.8×
  112. 109SulphurLouisiana, United States
    550.8×
  113. 109Cedar RapidsIowa, United States
    550.8×
  114. 114PrešovPrešov Region, Slovakia
    550.8×
  115. 114PułtuskMazovia, Poland
    550.8×
  116. 114HavířovMoravian-Silesian Region, Czechia
    550.8×
  117. 114WłocławekKujawsko-Pomorskie, Poland
    550.8×
  118. 114GainesvilleGeorgia, United States
    550.8×
  119. 114JacksonMississippi, United States
    550.8×
  120. 114AustinTexas, United States
    550.8×
  121. 114San DiegoCalifornia, United States
    550.8×
  122. 122SkopjeGrad Skopje, North Macedonia
    550.8×
  123. 122OwensboroKentucky, United States
    550.8×
  124. 122KokomoIndiana, United States
    550.8×
  125. 122CalexicoCalifornia, United States
    550.8×
  126. 126Missouri CityTexas, United States
    550.7×
  127. 126BakersfieldCalifornia, United States
    550.7×
  128. 128RēzekneRēzekne, Latvia
    550.7×
  129. 128MyyrmäkiUusimaa, Finland
    550.7×
  130. 130KhalándrionAttica, Greece
    550.7×
  131. 130TarnówLesser Poland, Poland
    550.7×
  132. 130Las Palmas de Gran CanariaCanary Islands, Spain
    550.7×
  133. 130AlbanyGeorgia, United States
    550.7×
  134. 130East Saint LouisIllinois, United States
    550.7×
  135. 130Valley StationKentucky, United States
    550.7×
  136. 130AnkenyIowa, United States
    550.7×
  137. 130RockfordIllinois, United States
    550.7×
  138. 138VentspilsVentspils, Latvia
    540.7×
  139. 138AugustówPodlasie, Poland
    540.7×
  140. 138OpoleOpole Voivodeship, Poland
    540.7×
  141. 138KościanGreater Poland, Poland
    540.7×
  142. 142SuwałkiPodlasie, Poland
    540.7×
  143. 142TorreviejaValencia, Spain
    540.7×
  144. 142KatowiceSilesia, Poland
    540.7×
  145. 142Saint JosephMissouri, United States
    540.7×
  146. 142ConroeTexas, United States
    540.7×
  147. 142Deer ParkTexas, United States
    540.7×
  148. 148LouisvilleKentucky, United States
    540.7×
  149. 148LompocCalifornia, United States
    540.7×
  150. 150BiałystokPodlasie, Poland
    540.7×
  151. 150CharlotteNorth Carolina, United States
    540.7×
  152. 150LimaOhio, United States
    540.7×
  153. 150EriePennsylvania, United States
    540.7×
  154. 150Thousand OaksCalifornia, United States
    540.7×
  155. 155VoluntariIlfov, Romania
    540.7×
  156. 155Laudio / LlodioBasque Country, Spain
    540.7×
  157. 155MontgomeryAlabama, United States
    540.7×
  158. 155GreenvilleSouth Carolina, United States
    540.7×
  159. 155College StationTexas, United States
    540.7×
  160. 155Fort WorthTexas, United States
    540.7×
  161. 155Des MoinesIowa, United States
    540.7×
  162. 155AnaheimCalifornia, United States
    540.7×
  163. 163ZamośćLublin, Poland
    530.7×
  164. 163ValenciaValencia, Spain
    530.7×
  165. 163AugustaGeorgia, United States
    530.7×
  166. 163ArnoldMissouri, United States
    530.7×
  167. 163BeltonTexas, United States
    530.7×
  168. 163AkronOhio, United States
    530.7×
  169. 163PittsburghPennsylvania, United States
    530.7×
  170. 170Gasteiz / VitoriaBasque Country, Spain
    530.7×
  171. 170ModugnoApulia, Italy
    530.7×
  172. 170La PorteTexas, United States
    530.7×
  173. 170OmahaNebraska, United States
    530.7×
  174. 174IrákleionCrete, Greece
    530.7×
  175. 174HopewellVirginia, United States
    530.7×
  176. 174SheridanWyoming, United States
    530.7×
  177. 177San RoqueAndalusia, Spain
    530.7×
  178. 177SavonaLiguria, Italy
    530.7×
  179. 177LansingMichigan, United States
    530.7×
  180. 177MadisonWisconsin, United States
    530.7×
  181. 177FresnoCalifornia, United States
    530.7×
  182. 177Long BeachCalifornia, United States
    530.7×
  183. 183KavadarciKavadarci, North Macedonia
    530.7×
  184. 183TřinecMoravian-Silesian Region, Czechia
    530.7×
  185. 183GijónAsturias, Spain
    530.7×
  186. 183ColumbusIndiana, United States
    530.7×
  187. 183JeffersontownKentucky, United States
    530.7×
  188. 183Port HuronMichigan, United States
    530.7×
  189. 183HanfordCalifornia, United States
    530.7×
  190. 183HobbsNew Mexico, United States
    530.7×
  191. 183CeutaCeuta, Spain
    530.7×
  192. 192RigaRiga, Latvia
    520.7×
  193. 192Frýdek-MístekMoravian-Silesian Region, Czechia
    520.7×
  194. 192VigoGalicia, Spain
    520.7×
  195. 192BilbaoBasque Country, Spain
    520.7×
  196. 196SolingenNorth Rhine-Westphalia, Germany
    520.7×
  197. 196DuisburgNorth Rhine-Westphalia, Germany
    520.7×
  198. 196SarcellesÎle-de-France, France
    520.7×
  199. 196SzczecinWest Pomerania, Poland
    520.7×
  200. 196KłodzkoLower Silesia, Poland
    520.7×

Top 200 of 1,179 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, April 25, 2023, smogrank.com/history/2023-04-25 (accessed 2 Oct 2026).

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