SmogRank / History / June 25, 2023

Most polluted cities on June 25, 2023

1,312 cities ranked by their average PM2.5 over the day; the worst was Saguenay, Canada, at 453.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during June 25, 2023. All episodes.

← Saguenay 453.0 µg/m³ 400 µg/m³15 WHO 24-hour guideline
Every city ranked for June 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. 1SaguenayQuebec, Canada
    500+30.2×
  2. 2North BayOntario, Canada
    500+26.5×
  3. 3Greater SudburyOntario, Canada
    40018.3×
  4. 4Rouyn-NorandaQuebec, Canada
    29614.7×
  5. 5ShawiniganQuebec, Canada
    26712.8×
  6. 6OttawaOntario, Canada
    23610.7×
  7. 7Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    2159.3×
  8. 8BrossardQuebec, Canada
    2149.2×
  9. 9DrummondvilleQuebec, Canada
    2088.9×
  10. 10CoyhaiqueAysén, Chile
    2018.4×
  11. 10MontréalQuebec, Canada
    2018.4×
  12. 12GranbyQuebec, Canada
    1988.1×
  13. 13DorvalQuebec, Canada
    1968.0×
  14. 14Saint-Jean-sur-RichelieuQuebec, Canada
    1917.5×
  15. 15Trois-RivièresQuebec, Canada
    1897.3×
  16. 16Sault Ste. MarieOntario, Canada
    1867.0×
  17. 17L'Ancienne-LoretteQuebec, Canada
    1806.5×
  18. 18CornwallOntario, Canada
    1796.4×
  19. 19QuébecQuebec, Canada
    1715.6×
  20. 20DushanbeDushanbe, Tajikistan
    1584.4×
  21. 21KigaliKigali, Rwanda
    1574.2×
  22. 22BurlingtonVermont, United States
    1554.1×
  23. 23Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1533.9×
  24. 24São PauloSão Paulo, Brazil
    1523.8×
  25. 25Puerto AysénAysén, Chile
    1503.7×
  26. 26TlaquepaqueJalisco, Mexico
    1333.2×
  27. 27RengoO'Higgins Region, Chile
    1323.2×
  28. 28EdmundstonNew Brunswick, Canada
    1283.1×
  29. 29JakartaJakarta, Indonesia
    1243.0×
  30. 30Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1212.9×
  31. 30Lahorelow-cost sensorsPunjab, Pakistan
    1212.9×
  32. 32Islamabadlow-cost sensorsIslamabad, Pakistan
    1202.9×
  33. 33OsornoLos Lagos Region, Chile
    1192.9×
  34. 34Addis AbabaAddis Ababa, Ethiopia
    1142.7×
  35. 35ValdiviaLos Ríos Region, Chile
    1062.5×
  36. 36Grande PrairieAlberta, Canada
    1052.5×
  37. 37SantiagoSantiago Metropolitan, Chile
    1052.5×
  38. 38ChennaiTamil Nadu, India
    1042.5×
  39. 39NacimientoBiobio, Chile
    1032.4×
  40. 40La UniónLos Ríos Region, Chile
    1022.4×
  41. 41BeijingBeijing, China
    1012.4×
  42. 42RancaguaO'Higgins Region, Chile
    992.3×
  43. 43Prince AlbertSaskatchewan, Canada
    992.3×
  44. 44CuranilahueBiobio, Chile
    982.3×
  45. 45Puerto MonttLos Lagos Region, Chile
    962.2×
  46. 46Puente AltoSantiago Metropolitan, Chile
    952.2×
  47. 47NairobiNairobi County, Kenya
    922.1×
  48. 47Dhakalow-cost sensorsDhaka Division, Bangladesh
    922.1×
  49. 49ManamaManama, Bahrain
    912.0×
  50. 49CelayaGuanajuato, Mexico
    912.0×
  51. 51Puerto VarasLos Lagos Region, Chile
    902.0×
  52. 52PristinaPristina, Kosovo
    902.0×
  53. 53HualquiBiobio, Chile
    902.0×
  54. 54TemucoAraucania, Chile
    902.0×
  55. 55BakuBaki, Azerbaijan
    892.0×
  56. 56MonctonNew Brunswick, Canada
    871.9×
  57. 57CoronelBiobio, Chile
    871.9×
  58. 58HualpénBiobio, Chile
    851.8×
  59. 59TalaganteSantiago Metropolitan, Chile
    851.8×
  60. 60Karachilow-cost sensorsSindh, Pakistan
    831.8×
  61. 61Fort St. JohnBritish Columbia, Canada
    831.7×
  62. 62Ciudad JuárezChihuahua, Mexico
    801.7×
  63. 63Hacienda Santa FeJalisco, Mexico
    791.6×
  64. 64SarajevoFederation of B&H, Bosnia and Herzegovina
    781.6×
  65. 65CopiapóAtacama, Chile
    771.5×
  66. 66AshgabatAshgabat, Turkmenistan
    761.5×
  67. 66AntofagastaAntofagasta, Chile
    761.5×
  68. 66EdmontonAlberta, Canada
    761.5×
  69. 69CoquimboCoquimbo Region, Chile
    751.5×
  70. 70AntananarivoAnalamanga, Madagascar
    751.5×
  71. 70Viña del MarValparaiso, Chile
    751.5×
  72. 70DuluthMinnesota, United States
    751.5×
  73. 73AricaArica y Parinacota Region, Chile
    741.4×
  74. 74QuillotaValparaiso, Chile
    731.4×
  75. 75SalamancaGuanajuato, Mexico
    731.4×
  76. 76SuperiorWisconsin, United States
    731.4×
  77. 77ChillánÑuble, Chile
    721.4×
  78. 78BremerhavenBremen, Germany
    721.4×
  79. 78CincinnatiOhio, United States
    721.4×
  80. 80LotaBiobio, Chile
    721.3×
  81. 81GuangzhouGuangdong, China
    711.3×
  82. 82NišCentral Serbia, Serbia
    711.3×
  83. 83IndianapolisIndiana, United States
    701.3×
  84. 84JeffersonvilleIndiana, United States
    701.3×
  85. 85CalamaAntofagasta, Chile
    701.3×
  86. 86San CarlosÑuble, Chile
    691.3×
  87. 87DelhiDelhi, India
    691.3×
  88. 87MóstolesMadrid, Spain
    691.3×
  89. 87MiddletownOhio, United States
    691.3×
  90. 90BirminghamAlabama, United States
    691.2×
  91. 90ValdostaGeorgia, United States
    691.2×
  92. 90NorwoodOhio, United States
    691.2×
  93. 90CantonOhio, United States
    691.2×
  94. 94La SerenaCoquimbo Region, Chile
    691.2×
  95. 95Fort ThomasKentucky, United States
    681.2×
  96. 96AlbanyGeorgia, United States
    681.2×
  97. 97Ang Mo Kio New TownSingapore
    671.2×
  98. 97Alcalá de HenaresMadrid, Spain
    671.2×
  99. 97Alto HospicioTarapacá, Chile
    671.2×
  100. 97West FargoNorth Dakota, United States
    671.2×
  101. 101QuinteroValparaiso, Chile
    671.2×
  102. 101CuricóMaule Region, Chile
    671.2×
  103. 103FishersIndiana, United States
    671.2×
  104. 103MiramichiNew Brunswick, Canada
    671.2×
  105. 105DaytonOhio, United States
    671.2×
  106. 105San Pedro de la PazBiobio, Chile
    671.2×
  107. 107Gasteiz / VitoriaBasque Country, Spain
    671.2×
  108. 107TalcahuanoBiobio, Chile
    671.2×
  109. 107MaconGeorgia, United States
    671.2×
  110. 107SpringfieldOhio, United States
    671.2×
  111. 107PeterboroughOntario, Canada
    671.2×
  112. 112HanoiHanoi, Vietnam
    661.2×
  113. 113HollandMichigan, United States
    661.1×
  114. 113Candler-McAfeeGeorgia, United States
    661.1×
  115. 115DelmenhorstLower Saxony, Germany
    661.1×
  116. 115Warner RobinsGeorgia, United States
    661.1×
  117. 117AndersonIndiana, United States
    661.1×
  118. 117KalamazooMichigan, United States
    661.1×
  119. 119Laudio / LlodioBasque Country, Spain
    651.1×
  120. 119CauquenesMaule Region, Chile
    651.1×
  121. 119ClarksvilleTennessee, United States
    651.1×
  122. 122Collado-VillalbaMadrid, Spain
    651.1×
  123. 122HueytownAlabama, United States
    651.1×
  124. 122Phenix CityAlabama, United States
    651.1×
  125. 122JeffersontownKentucky, United States
    651.1×
  126. 126Ulu BedokSingapore
    651.1×
  127. 126SliemaTas-Sliema, Malta
    651.1×
  128. 126LouisvilleKentucky, United States
    651.1×
  129. 126ParadiseCalifornia, United States
    651.1×
  130. 130ChiguayanteBiobio, Chile
    651.1×
  131. 130West MemphisArkansas, United States
    651.1×
  132. 130New AlbanyIndiana, United States
    651.1×
  133. 133DenainHauts-de-France, France
    651.1×
  134. 133MontgomeryAlabama, United States
    651.1×
  135. 135Los ÁngelesBiobio, Chile
    641.1×
  136. 135ConcónValparaiso, Chile
    641.1×
  137. 135Saint MatthewsKentucky, United States
    641.1×
  138. 135West MifflinPennsylvania, United States
    641.1×
  139. 139AlgeteMadrid, Spain
    641.1×
  140. 140KrefeldNorth Rhine-Westphalia, Germany
    641.1×
  141. 140WarrenOhio, United States
    641.1×
  142. 140FrederictonNew Brunswick, Canada
    641.1×
  143. 143ClevelandOhio, United States
    641.1×
  144. 144AtlantaGeorgia, United States
    631.0×
  145. 144LawrencevilleGeorgia, United States
    631.0×
  146. 144Saint JosephMissouri, United States
    631.0×
  147. 144HernandoMississippi, United States
    631.0×
  148. 144MasonOhio, United States
    631.0×
  149. 144AkronOhio, United States
    631.0×
  150. 144Prince GeorgeBritish Columbia, Canada
    631.0×
  151. 151AthensAttica, Greece
    631.0×
  152. 151LuxembourgLuxembourg, Luxembourg
    631.0×
  153. 151East RidgeTennessee, United States
    631.0×
  154. 154TrierRheinland-Pfalz, Germany
    631.0×
  155. 154RambouilletÎle-de-France, France
    631.0×
  156. 154DublinOhio, United States
    631.0×
  157. 154Idaho FallsIdaho, United States
    631.0×
  158. 158EvergemFlanders, Belgium
    631.0×
  159. 158OldenburgLower Saxony, Germany
    631.0×
  160. 158BrunswickGeorgia, United States
    631.0×
  161. 158ChattanoogaTennessee, United States
    631.0×
  162. 158LafayetteIndiana, United States
    631.0×
  163. 163Bang Bo DistrictSamut Prakan, Thailand
    621.0×
  164. 163OwensboroKentucky, United States
    621.0×
  165. 163BarrieOntario, Canada
    621.0×
  166. 166MadridMadrid, Spain
    621.0×
  167. 166EvansvilleIndiana, United States
    621.0×
  168. 166KokomoIndiana, United States
    621.0×
  169. 169PalenciaCastille and León, Spain
    621.0×
  170. 169GadsdenAlabama, United States
    621.0×
  171. 169LebanonOhio, United States
    621.0×
  172. 169SocorroTexas, United States
    621.0×
  173. 173SalorTashkent Region, Uzbekistan
    621.0×
  174. 173ToméBiobio, Chile
    621.0×
  175. 173SteubenvilleOhio, United States
    621.0×
  176. 176CosladaMadrid, Spain
    611.0×
  177. 176TocopillaAntofagasta, Chile
    611.0×
  178. 176JacksonTennessee, United States
    611.0×
  179. 176St. AlbertAlberta, Canada
    611.0×
  180. 180DattelnNorth Rhine-Westphalia, Germany
    611.0×
  181. 180PesaroThe Marches, Italy
    611.0×
  182. 180GainesvilleGeorgia, United States
    611.0×
  183. 183OytenLower Saxony, Germany
    611.0×
  184. 183ConcepciónBiobio, Chile
    611.0×
  185. 183NogalesSonora, Mexico
    611.0×
  186. 183Grand RapidsMichigan, United States
    611.0×
  187. 183HamiltonOntario, Canada
    611.0×
  188. 188PiraeusAttica, Greece
    611.0×
  189. 188BelmopanCayo District, Belize
    611.0×
  190. 188TallahasseeFlorida, United States
    611.0×
  191. 188Valley StationKentucky, United States
    611.0×
  192. 188North CharlestonSouth Carolina, United States
    611.0×
  193. 193AsprópyrgosAttica, Greece
    611.0×
  194. 193MartinŽilina Region, Slovakia
    611.0×
  195. 193Little RockArkansas, United States
    611.0×
  196. 193DearbornMichigan, United States
    611.0×
  197. 193YoungstownOhio, United States
    611.0×
  198. 193WatertownSouth Dakota, United States
    611.0×
  199. 199DecaturAlabama, United States
    610.9×
  200. 199Port HuronMichigan, United States
    610.9×

Top 200 of 1,312 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 25, 2023, smogrank.com/history/2023-06-25 (accessed 2 Oct 2026).

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