SmogRank / History / June 23, 2023

Most polluted cities on June 23, 2023

1,335 cities ranked by their average PM2.5 over the day; the worst was Puerto Varas, Chile, at 100.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during June 23, 2023. All episodes.

← Puerto Varas 100.0 µg/m³ 75 µg/m³15 WHO 24-hour guideline
Every city ranked for June 23, 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. 1Puerto VarasLos Lagos Region, Chile
    1826.7×
  2. 2DushanbeDushanbe, Tajikistan
    1796.4×
  3. 3TlaquepaqueJalisco, Mexico
    1675.2×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1665.1×
  5. 5CoyhaiqueAysén, Chile
    1604.6×
  6. 6Puerto AysénAysén, Chile
    1584.4×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    1533.8×
  8. 8KigaliKigali, Rwanda
    1523.8×
  9. 9Lahorelow-cost sensorsPunjab, Pakistan
    1453.6×
  10. 10Green BayWisconsin, United States
    1393.4×
  11. 11AppletonWisconsin, United States
    1393.4×
  12. 12DelhiDelhi, India
    1283.1×
  13. 13Rouyn-NorandaQuebec, Canada
    1263.0×
  14. 14GuadalajaraJalisco, Mexico
    1222.9×
  15. 15WaukeshaWisconsin, United States
    1162.8×
  16. 16Addis AbabaAddis Ababa, Ethiopia
    1152.8×
  17. 17Dhakalow-cost sensorsDhaka Division, Bangladesh
    1142.7×
  18. 18Hacienda Santa FeJalisco, Mexico
    1132.7×
  19. 19RockfordIllinois, United States
    1132.7×
  20. 20MadisonWisconsin, United States
    1112.6×
  21. 21SarajevoFederation of B&H, Bosnia and Herzegovina
    1112.6×
  22. 22La UniónLos Ríos Region, Chile
    1102.6×
  23. 22BloomingtonIllinois, United States
    1102.6×
  24. 24CuranilahueBiobio, Chile
    1092.6×
  25. 25JakartaJakarta, Indonesia
    1082.6×
  26. 26OsornoLos Lagos Region, Chile
    1062.5×
  27. 27Puerto MonttLos Lagos Region, Chile
    1052.5×
  28. 28ZapopanJalisco, Mexico
    1052.5×
  29. 29AntananarivoAnalamanga, Madagascar
    1042.5×
  30. 30HyderabadTelangana, India
    1032.4×
  31. 31MilwaukeeWisconsin, United States
    1022.4×
  32. 32Sault Ste. MarieOntario, Canada
    1012.4×
  33. 33SaguenayQuebec, Canada
    992.3×
  34. 34PristinaPristina, Kosovo
    992.3×
  35. 35São PauloSão Paulo, Brazil
    962.2×
  36. 35South MilwaukeeWisconsin, United States
    962.2×
  37. 37NacimientoBiobio, Chile
    952.2×
  38. 37JolietIllinois, United States
    952.2×
  39. 39BeijingBeijing, China
    952.2×
  40. 40NapervilleIllinois, United States
    932.1×
  41. 41Tepeji del Río de OcampoHidalgo, Mexico
    922.1×
  42. 42AshgabatAshgabat, Turkmenistan
    892.0×
  43. 43CholulaPuebla, Mexico
    892.0×
  44. 44ChennaiTamil Nadu, India
    881.9×
  45. 45QuillotaValparaiso, Chile
    881.9×
  46. 46East ChicagoIndiana, United States
    881.9×
  47. 47ZionIllinois, United States
    871.9×
  48. 48Des PlainesIllinois, United States
    871.9×
  49. 48NorthbrookIllinois, United States
    871.9×
  50. 50CaryIllinois, United States
    871.9×
  51. 51RužomberokŽilina Region, Slovakia
    861.9×
  52. 52CelayaGuanajuato, Mexico
    861.9×
  53. 53ClintonIowa, United States
    851.8×
  54. 54Ciudad JuárezChihuahua, Mexico
    851.8×
  55. 55HammondIndiana, United States
    841.8×
  56. 56SalamancaGuanajuato, Mexico
    831.8×
  57. 57Karachilow-cost sensorsSindh, Pakistan
    831.8×
  58. 57ColomboWestern Province, Sri Lanka
    831.8×
  59. 59SantiagoSantiago Metropolitan, Chile
    831.7×
  60. 60KošiceKošice Region, Slovakia
    821.7×
  61. 60Grande PrairieAlberta, Canada
    821.7×
  62. 62TemucoAraucania, Chile
    821.7×
  63. 62Calumet CityIllinois, United States
    821.7×
  64. 64ModugnoApulia, Italy
    821.7×
  65. 65San Mateo AtencoMéxico, Mexico
    811.7×
  66. 66PécsBaranya, Hungary
    811.7×
  67. 66Civitanova MarcheThe Marches, Italy
    811.7×
  68. 68San Francisco TlalcilalcalpanMéxico, Mexico
    811.7×
  69. 68San Salvador TizatlalliMéxico, Mexico
    811.7×
  70. 70PrešovPrešov Region, Slovakia
    811.7×
  71. 71CopiapóAtacama, Chile
    811.7×
  72. 72BeneventoCampania, Italy
    801.7×
  73. 73WaregemFlanders, Belgium
    801.7×
  74. 73DecaturIllinois, United States
    801.7×
  75. 75SuperiorWisconsin, United States
    801.6×
  76. 76San Andrés TuxtlaVeracruz, Mexico
    801.6×
  77. 77ManamaManama, Bahrain
    791.6×
  78. 77MinatitlánVeracruz, Mexico
    791.6×
  79. 77GaryIndiana, United States
    791.6×
  80. 80Franklin ParkIllinois, United States
    791.6×
  81. 81ShenyangLiaoning, China
    781.6×
  82. 81PueblaPuebla, Mexico
    781.6×
  83. 81AntofagastaAntofagasta, Chile
    781.6×
  84. 84TolucaMéxico, Mexico
    781.6×
  85. 84PortageIndiana, United States
    781.6×
  86. 86CuernavacaMorelos, Mexico
    771.6×
  87. 87DunaújvárosFejér, Hungary
    771.5×
  88. 88Spišská Nová VesKošice Region, Slovakia
    771.5×
  89. 89TournaiWallonia, Belgium
    771.5×
  90. 89ChicagoIllinois, United States
    771.5×
  91. 91MolineIllinois, United States
    761.5×
  92. 92IzegemFlanders, Belgium
    761.5×
  93. 93DavenportIowa, United States
    761.5×
  94. 94RoeselareFlanders, Belgium
    751.5×
  95. 95PopradPrešov Region, Slovakia
    751.5×
  96. 96CoquimboCoquimbo Region, Chile
    751.5×
  97. 97MartinŽilina Region, Slovakia
    751.5×
  98. 98XonacatlánMéxico, Mexico
    741.4×
  99. 98DuluthMinnesota, United States
    741.4×
  100. 100TrnavaTrnava Region, Slovakia
    741.4×
  101. 101TalaganteSantiago Metropolitan, Chile
    731.4×
  102. 101SpringfieldIllinois, United States
    731.4×
  103. 101Greater SudburyOntario, Canada
    731.4×
  104. 104RoubaixHauts-de-France, France
    731.4×
  105. 105Banja LukaSrpska, Bosnia and Herzegovina
    731.4×
  106. 106Iowa CityIowa, United States
    731.4×
  107. 106MuscatineIowa, United States
    731.4×
  108. 106EdmundstonNew Brunswick, Canada
    731.4×
  109. 109St. John'sNewfoundland and Labrador, Canada
    721.4×
  110. 110MenenFlanders, Belgium
    721.4×
  111. 111La SerenaCoquimbo Region, Chile
    721.4×
  112. 111AricaArica y Parinacota Region, Chile
    721.4×
  113. 113RengoO'Higgins Region, Chile
    721.3×
  114. 114NaplesCampania, Italy
    711.3×
  115. 115CoronelBiobio, Chile
    711.3×
  116. 116Santiago de QuerétaroQuerétaro, Mexico
    711.3×
  117. 117VeszprémVeszprém, Hungary
    711.3×
  118. 118San Luis de la PazGuanajuato, Mexico
    711.3×
  119. 119Ecatepec de MorelosMéxico, Mexico
    701.3×
  120. 120East Saint LouisIllinois, United States
    701.3×
  121. 121GuangzhouGuangdong, China
    701.3×
  122. 122Puente AltoSantiago Metropolitan, Chile
    701.3×
  123. 123HanoiHanoi, Vietnam
    701.3×
  124. 123HualpénBiobio, Chile
    701.3×
  125. 123Alto HospicioTarapacá, Chile
    701.3×
  126. 123AustinTexas, United States
    701.3×
  127. 127NairobiNairobi County, Kenya
    691.3×
  128. 127ZvolenBanská Bystrica Region, Slovakia
    691.3×
  129. 127ChillánÑuble, Chile
    691.3×
  130. 127AbasoloGuanajuato, Mexico
    691.3×
  131. 127Prince GeorgeBritish Columbia, Canada
    691.3×
  132. 132St. LouisMissouri, United States
    691.2×
  133. 132HernandoMississippi, United States
    691.2×
  134. 132Oak LawnIllinois, United States
    691.2×
  135. 135Bang Bo DistrictSamut Prakan, Thailand
    691.2×
  136. 136Viña del MarValparaiso, Chile
    691.2×
  137. 137WaterlooIowa, United States
    681.2×
  138. 138HumennéPrešov Region, Slovakia
    681.2×
  139. 138Naucalpan de JuárezMéxico, Mexico
    681.2×
  140. 140Şabāḩ as SālimMubārak al Kabīr, Kuwait
    681.2×
  141. 141ŻabbarĦaż-Żabbar, Malta
    681.2×
  142. 141San Miguel de AllendeGuanajuato, Mexico
    681.2×
  143. 143León de los AldamaGuanajuato, Mexico
    681.2×
  144. 143Little RockArkansas, United States
    681.2×
  145. 145Vranov nad TopľouPrešov Region, Slovakia
    671.2×
  146. 145RochesterMinnesota, United States
    671.2×
  147. 147DunkirkHauts-de-France, France
    671.2×
  148. 148HoustonTexas, United States
    671.2×
  149. 148La CrosseWisconsin, United States
    671.2×
  150. 150KoksijdeFlanders, Belgium
    671.2×
  151. 150AndenneWallonia, Belgium
    671.2×
  152. 150A CoruñaGalicia, Spain
    671.2×
  153. 150GuanajuatoGuanajuato, Mexico
    671.2×
  154. 150AnkenyIowa, United States
    671.2×
  155. 155ŽilinaŽilina Region, Slovakia
    661.2×
  156. 155QuinteroValparaiso, Chile
    661.2×
  157. 155BurnsvilleMinnesota, United States
    661.2×
  158. 155MinneapolisMinnesota, United States
    661.2×
  159. 159Žiar nad HronomBanská Bystrica Region, Slovakia
    661.2×
  160. 159CalamaAntofagasta, Chile
    661.2×
  161. 159Eau ClaireWisconsin, United States
    661.2×
  162. 162ConcónValparaiso, Chile
    661.1×
  163. 163Banská BystricaBanská Bystrica Region, Slovakia
    661.1×
  164. 163RoveretoTrentino-Alto Adige, Italy
    661.1×
  165. 163VeracruzVeracruz, Mexico
    661.1×
  166. 166Nong KhaemBangkok, Thailand
    661.1×
  167. 166Marche-en-FamenneWallonia, Belgium
    661.1×
  168. 166Missouri CityTexas, United States
    661.1×
  169. 166LiberpolisCounty of Osijek-Baranja, Croatia
    661.1×
  170. 170West MemphisArkansas, United States
    651.1×
  171. 171WolfsbergCarinthia, Austria
    651.1×
  172. 172Kuala LumpurKuala Lumpur, Malaysia
    651.1×
  173. 172SliemaTas-Sliema, Malta
    651.1×
  174. 172IrapuatoGuanajuato, Mexico
    651.1×
  175. 172HollandMichigan, United States
    651.1×
  176. 176BucharestBucharest, Romania
    651.1×
  177. 176San RoqueAndalusia, Spain
    651.1×
  178. 176GyőrGyőr-Moson-Sopron, Hungary
    651.1×
  179. 176Falconara MarittimaThe Marches, Italy
    651.1×
  180. 176TocopillaAntofagasta, Chile
    651.1×
  181. 176HualquiBiobio, Chile
    651.1×
  182. 182Botevgradlow-cost sensorsSofia, Bulgaria
    651.1×
  183. 182MostaIl-Mosta, Malta
    651.1×
  184. 182GrazStyria, Austria
    651.1×
  185. 182Saint PaulMinnesota, United States
    651.1×
  186. 182ShakopeeMinnesota, United States
    651.1×
  187. 182EdmontonAlberta, Canada
    651.1×
  188. 188ValenciennesHauts-de-France, France
    641.1×
  189. 188Ceglie MessapicaApulia, Italy
    641.1×
  190. 190Phra PradaengSamut Prakan, Thailand
    641.1×
  191. 190EsztergomKomárom-Esztergom, Hungary
    641.1×
  192. 192BeltonTexas, United States
    641.1×
  193. 192OdessaTexas, United States
    641.1×
  194. 194Klagenfurt am WörtherseeCarinthia, Austria
    641.1×
  195. 194MexicaliBaja California, Mexico
    641.1×
  196. 196Kathmandulow-cost sensorsBagmati Province, Nepal
    641.1×
  197. 196VigoGalicia, Spain
    641.1×
  198. 196RabinalBaja Verapaz, Guatemala
    641.1×
  199. 196Guatemala CityGuatemala, Guatemala
    641.1×
  200. 196CuricóMaule Region, Chile
    641.1×

Top 200 of 1,335 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, June 23, 2023, smogrank.com/history/2023-06-23 (accessed 2 Oct 2026).

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