SmogRank / History / August 22, 2023

Most polluted cities on August 22, 2023

1,727 cities ranked by their average PM2.5 over the day; the worst was Ashland, United States, at 146.5 µg/m³. Each city's own local calendar day.

Bad-air episodes during August 22, 2023. All episodes.

← Ashland 146.5 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for August 22, 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. 1AshlandOregon, United States
    2229.8×
  2. 2RedmondOregon, United States
    2209.7×
  3. 3KamloopsBritish Columbia, Canada
    2088.9×
  4. 4MedfordOregon, United States
    2068.7×
  5. 5La OrotavaCanary Islands, Spain
    1756.0×
  6. 6PentictonBritish Columbia, Canada
    1705.5×
  7. 7DushanbeDushanbe, Tajikistan
    1705.5×
  8. 8Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1655.0×
  9. 9ManamaManama, Bahrain
    1624.8×
  10. 10Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1564.2×
  11. 11OsornoLos Lagos Region, Chile
    1533.9×
  12. 12SunnysideWashington, United States
    1463.6×
  13. 13Grants PassOregon, United States
    1463.6×
  14. 14Puerto AysénAysén, Chile
    1463.6×
  15. 15Islamabadlow-cost sensorsIslamabad, Pakistan
    1393.4×
  16. 16JakartaJakarta, Indonesia
    1373.3×
  17. 17Prince GeorgeBritish Columbia, Canada
    1313.2×
  18. 18KigaliKigali, Rwanda
    1303.2×
  19. 19BendOregon, United States
    1303.1×
  20. 20KelownaBritish Columbia, Canada
    1293.1×
  21. 21La UniónLos Ríos Region, Chile
    1263.1×
  22. 22SarajevoFederation of B&H, Bosnia and Herzegovina
    1192.9×
  23. 23Moses LakeWashington, United States
    1182.8×
  24. 24CoyhaiqueAysén, Chile
    1182.8×
  25. 25AlexandriaAlexandria, Egypt
    1172.8×
  26. 26Dhakalow-cost sensorsDhaka Division, Bangladesh
    1152.7×
  27. 27JeddahMecca Region, Saudi Arabia
    1102.6×
  28. 28Lahorelow-cost sensorsPunjab, Pakistan
    1102.6×
  29. 29LewistonIdaho, United States
    1072.5×
  30. 30Puerto MonttLos Lagos Region, Chile
    1072.5×
  31. 31Addis AbabaAddis Ababa, Ethiopia
    1062.5×
  32. 32Puerto VarasLos Lagos Region, Chile
    1062.5×
  33. 33NacimientoBiobio, Chile
    1012.4×
  34. 34AltamontOregon, United States
    992.3×
  35. 35VernonBritish Columbia, Canada
    952.2×
  36. 36PristinaPristina, Kosovo
    952.2×
  37. 37HanoiHanoi, Vietnam
    932.1×
  38. 38Ciudad JuárezChihuahua, Mexico
    912.0×
  39. 39DelhiDelhi, India
    881.9×
  40. 40ChennaiTamil Nadu, India
    881.9×
  41. 40PullmanWashington, United States
    881.9×
  42. 42SliemaTas-Sliema, Malta
    871.9×
  43. 42CoronelBiobio, Chile
    871.9×
  44. 44KolkataWest Bengal, India
    861.9×
  45. 45HyderabadTelangana, India
    861.9×
  46. 45NaplesCampania, Italy
    861.9×
  47. 47Coeur d'AleneIdaho, United States
    851.8×
  48. 48BirminghamAlabama, United States
    851.8×
  49. 49HumennéPrešov Region, Slovakia
    851.8×
  50. 50HualquiBiobio, Chile
    851.8×
  51. 51AntananarivoAnalamanga, Madagascar
    841.8×
  52. 52TetovoTetovo, North Macedonia
    831.8×
  53. 53EdmontonAlberta, Canada
    831.8×
  54. 54AntofagastaAntofagasta, Chile
    821.7×
  55. 55MoscowIdaho, United States
    821.7×
  56. 56ValdiviaLos Ríos Region, Chile
    821.7×
  57. 57PendletonOregon, United States
    811.7×
  58. 58Walla WallaWashington, United States
    811.7×
  59. 59SpokaneWashington, United States
    811.7×
  60. 60SalorTashkent Region, Uzbekistan
    801.7×
  61. 61CuranilahueBiobio, Chile
    801.7×
  62. 61AricaArica y Parinacota Region, Chile
    801.7×
  63. 61Tri-CitiesWashington, United States
    801.7×
  64. 64CauquenesMaule Region, Chile
    801.6×
  65. 65Valašské MeziříčíZlín, Czechia
    801.6×
  66. 66BratislavaBratislava Region, Slovakia
    801.6×
  67. 67N'DjamenaN’Djaména, Chad
    791.6×
  68. 68HuelvaAndalusia, Spain
    791.6×
  69. 68TrnavaTrnava Region, Slovakia
    791.6×
  70. 68ModugnoApulia, Italy
    791.6×
  71. 68São PauloSão Paulo, Brazil
    791.6×
  72. 72Franklin ParkIllinois, United States
    781.6×
  73. 73Spokane ValleyWashington, United States
    781.6×
  74. 74TemucoAraucania, Chile
    781.6×
  75. 75JesiThe Marches, Italy
    781.6×
  76. 76Maebaru-chūōFukuoka, Japan
    771.5×
  77. 77WenatcheeWashington, United States
    771.5×
  78. 78Ulu BedokSingapore
    771.5×
  79. 78RengoO'Higgins Region, Chile
    771.5×
  80. 78SpringfieldIllinois, United States
    771.5×
  81. 78MuscatineIowa, United States
    771.5×
  82. 82East Saint LouisIllinois, United States
    761.5×
  83. 83HavířovMoravian-Silesian Region, Czechia
    761.5×
  84. 84NairobiNairobi County, Kenya
    761.5×
  85. 84BelgradeCentral Serbia, Serbia
    761.5×
  86. 84JolietIllinois, United States
    761.5×
  87. 87Abujalow-cost sensorsFCT, Nigeria
    761.5×
  88. 87Frýdek-MístekMoravian-Silesian Region, Czechia
    761.5×
  89. 87Falconara MarittimaThe Marches, Italy
    761.5×
  90. 87University CityMissouri, United States
    761.5×
  91. 91PrešovPrešov Region, Slovakia
    761.5×
  92. 92Tha BoNong Khai, Thailand
    751.5×
  93. 93Fort St. JohnBritish Columbia, Canada
    751.5×
  94. 94SalernoCampania, Italy
    751.5×
  95. 94MidwayFlorida, United States
    751.5×
  96. 96Fort LauderdaleFlorida, United States
    751.5×
  97. 97AsprópyrgosAttica, Greece
    741.4×
  98. 98ŻabbarĦaż-Żabbar, Malta
    741.4×
  99. 98CopiapóAtacama, Chile
    741.4×
  100. 100Los ÁngelesBiobio, Chile
    741.4×
  101. 100DecaturIllinois, United States
    741.4×
  102. 100JeffersonvilleIndiana, United States
    741.4×
  103. 103OstravaMoravian-Silesian Region, Czechia
    741.4×
  104. 103Little RockArkansas, United States
    741.4×
  105. 103St. LouisMissouri, United States
    741.4×
  106. 103Grande PrairieAlberta, Canada
    741.4×
  107. 107Prince AlbertSaskatchewan, Canada
    741.4×
  108. 108Vranov nad TopľouPrešov Region, Slovakia
    731.4×
  109. 108JeffersontownKentucky, United States
    731.4×
  110. 108ShreveportLouisiana, United States
    731.4×
  111. 111LouisvilleKentucky, United States
    731.4×
  112. 111MooreOklahoma, United States
    731.4×
  113. 113MostaIl-Mosta, Malta
    731.4×
  114. 113TalcahuanoBiobio, Chile
    731.4×
  115. 113San CarlosÑuble, Chile
    731.4×
  116. 113IndianapolisIndiana, United States
    731.4×
  117. 113Iowa CityIowa, United States
    731.4×
  118. 113YakimaWashington, United States
    731.4×
  119. 113LiberpolisCounty of Osijek-Baranja, Croatia
    731.4×
  120. 120SevillaAndalusia, Spain
    731.4×
  121. 120Valley StationKentucky, United States
    731.4×
  122. 120HermistonOregon, United States
    731.4×
  123. 123Calumet CityIllinois, United States
    731.4×
  124. 123RochesterMinnesota, United States
    731.4×
  125. 125OlomoucOlomouc Region, Czechia
    721.4×
  126. 126Palm CityFlorida, United States
    721.4×
  127. 126Oklahoma CityOklahoma, United States
    721.4×
  128. 126PeoriaIllinois, United States
    721.4×
  129. 126RockfordIllinois, United States
    721.4×
  130. 130ZvolenBanská Bystrica Region, Slovakia
    721.4×
  131. 130AlessandriaPiedmont, Italy
    721.4×
  132. 132Český TěšínMoravian-Silesian Region, Czechia
    721.4×
  133. 132BurnsvilleMinnesota, United States
    721.4×
  134. 132ItoshimaFukuoka, Japan
    721.4×
  135. 135NitraNitra Region, Slovakia
    721.3×
  136. 135MóstolesMadrid, Spain
    721.3×
  137. 135BolzanoTrentino-Alto Adige, Italy
    721.3×
  138. 135LinaresMaule Region, Chile
    721.3×
  139. 135HueytownAlabama, United States
    721.3×
  140. 135Winston-SalemNorth Carolina, United States
    721.3×
  141. 135EdmondOklahoma, United States
    721.3×
  142. 135CaryIllinois, United States
    721.3×
  143. 143Alto HospicioTarapacá, Chile
    711.3×
  144. 143EvansvilleIndiana, United States
    711.3×
  145. 145KošiceKošice Region, Slovakia
    711.3×
  146. 145SpringdaleArkansas, United States
    711.3×
  147. 145TulsaOklahoma, United States
    711.3×
  148. 148SninaPrešov Region, Slovakia
    711.3×
  149. 148Saint MatthewsKentucky, United States
    711.3×
  150. 148North CharlestonSouth Carolina, United States
    711.3×
  151. 148East RidgeTennessee, United States
    711.3×
  152. 148Candler-McAfeeGeorgia, United States
    711.3×
  153. 153ZlínZlín, Czechia
    711.3×
  154. 153ChillánÑuble, Chile
    711.3×
  155. 153ShakopeeMinnesota, United States
    711.3×
  156. 153PascoWashington, United States
    711.3×
  157. 157RuseRuse, Bulgaria
    711.3×
  158. 157FlorenceSouth Carolina, United States
    711.3×
  159. 159Kempten (Allgäu)Bavaria, Germany
    701.3×
  160. 159PřerovOlomouc Region, Czechia
    701.3×
  161. 159Ferry PassFlorida, United States
    701.3×
  162. 162ŽilinaŽilina Region, Slovakia
    701.3×
  163. 162ŽideniceSouth Moravian, Czechia
    701.3×
  164. 162ValdostaGeorgia, United States
    701.3×
  165. 165MostÚstí nad Labem Region, Czechia
    701.3×
  166. 165New AlbanyIndiana, United States
    701.3×
  167. 165PascagoulaMississippi, United States
    701.3×
  168. 165CincinnatiOhio, United States
    701.3×
  169. 165NorwoodOhio, United States
    701.3×
  170. 165DallasTexas, United States
    701.3×
  171. 165TexarkanaTexas, United States
    701.3×
  172. 172NišCentral Serbia, Serbia
    701.3×
  173. 172Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    701.3×
  174. 172GuangzhouGuangdong, China
    701.3×
  175. 172Collado-VillalbaMadrid, Spain
    701.3×
  176. 172JasperIndiana, United States
    701.3×
  177. 172SpartanburgSouth Carolina, United States
    701.3×
  178. 178BakuBaki, Azerbaijan
    701.3×
  179. 178WeidenBavaria, Germany
    701.3×
  180. 178ElizabethtownKentucky, United States
    701.3×
  181. 178HattiesburgMississippi, United States
    701.3×
  182. 178HernandoMississippi, United States
    701.3×
  183. 178RoanokeVirginia, United States
    701.3×
  184. 178NorthbrookIllinois, United States
    701.3×
  185. 185AnkenyIowa, United States
    691.3×
  186. 185Saint PaulMinnesota, United States
    691.3×
  187. 185ReginaSaskatchewan, Canada
    691.3×
  188. 188PartizánskeTrenčín Region, Slovakia
    691.3×
  189. 188ZnojmoSouth Moravian, Czechia
    691.3×
  190. 188RaleighNorth Carolina, United States
    691.3×
  191. 191DěčínÚstí nad Labem Region, Czechia
    691.3×
  192. 191AlbanyGeorgia, United States
    691.3×
  193. 191GainesvilleGeorgia, United States
    691.3×
  194. 191McAlesterOklahoma, United States
    691.3×
  195. 191BloomingtonIllinois, United States
    691.3×
  196. 191MolineIllinois, United States
    691.3×
  197. 197MartinŽilina Region, Slovakia
    691.2×
  198. 198HonmachiKumamoto, Japan
    691.2×
  199. 198Ang Mo Kio New TownSingapore
    691.2×
  200. 198Coconut CreekFlorida, United States
    691.2×

Top 200 of 1,727 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, August 22, 2023, smogrank.com/history/2023-08-22 (accessed 2 Oct 2026).

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