SmogRank / History / August 23, 2023

Most polluted cities on August 23, 2023

1,699 cities ranked by their average PM2.5 over the day; the worst was Manama, Bahrain, at 77.6 µg/m³. Each city's own local calendar day.

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

← Manama 77.6 µg/m³ 70 µg/m³15 WHO 24-hour guideline
Every city ranked for August 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. 1ManamaManama, Bahrain
    1665.2×
  2. 2AshlandOregon, United States
    1634.8×
  3. 3NacimientoBiobio, Chile
    1624.7×
  4. 4Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1614.7×
  5. 5RedmondOregon, United States
    1574.2×
  6. 6MedfordOregon, United States
    1554.1×
  7. 7AltamontOregon, United States
    1533.9×
  8. 8Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1533.9×
  9. 9JeddahMecca Region, Saudi Arabia
    1523.8×
  10. 10Puerto MonttLos Lagos Region, Chile
    1523.8×
  11. 11Puerto VarasLos Lagos Region, Chile
    1523.8×
  12. 12Fort McMurrayAlberta, Canada
    1463.6×
  13. 13JakartaJakarta, Indonesia
    1443.5×
  14. 14Fort St. JohnBritish Columbia, Canada
    1383.4×
  15. 15La UniónLos Ríos Region, Chile
    1293.1×
  16. 16AlexandriaAlexandria, Egypt
    1283.1×
  17. 17OsornoLos Lagos Region, Chile
    1263.1×
  18. 18CoronelBiobio, Chile
    1233.0×
  19. 19Islamabadlow-cost sensorsIslamabad, Pakistan
    1192.9×
  20. 19DushanbeDushanbe, Tajikistan
    1192.9×
  21. 21HualquiBiobio, Chile
    1162.8×
  22. 22BendOregon, United States
    1122.7×
  23. 23TetovoTetovo, North Macedonia
    1112.6×
  24. 24ValdiviaLos Ríos Region, Chile
    1082.6×
  25. 25PiraeusAttica, Greece
    1082.5×
  26. 26Dhakalow-cost sensorsDhaka Division, Bangladesh
    1072.5×
  27. 27Lahorelow-cost sensorsPunjab, Pakistan
    1062.5×
  28. 27SarajevoFederation of B&H, Bosnia and Herzegovina
    1062.5×
  29. 29KigaliKigali, Rwanda
    1032.4×
  30. 29SulphurLouisiana, United States
    1032.4×
  31. 31LewistonIdaho, United States
    1022.4×
  32. 32PristinaPristina, Kosovo
    992.3×
  33. 33Puerto AysénAysén, Chile
    962.2×
  34. 34Addis AbabaAddis Ababa, Ethiopia
    952.2×
  35. 35CauquenesMaule Region, Chile
    942.1×
  36. 36Los ÁngelesBiobio, Chile
    922.1×
  37. 37CoyhaiqueAysén, Chile
    922.1×
  38. 38NaplesCampania, Italy
    922.1×
  39. 39La OrotavaCanary Islands, Spain
    902.0×
  40. 40HanoiHanoi, Vietnam
    892.0×
  41. 41AthensGeorgia, United States
    892.0×
  42. 42BirminghamAlabama, United States
    881.9×
  43. 43NairobiNairobi County, Kenya
    871.9×
  44. 44AsprópyrgosAttica, Greece
    861.9×
  45. 45AthensAttica, Greece
    851.8×
  46. 46SliemaTas-Sliema, Malta
    841.8×
  47. 46TalcahuanoBiobio, Chile
    841.8×
  48. 48KolkataWest Bengal, India
    821.7×
  49. 49KamloopsBritish Columbia, Canada
    821.7×
  50. 50East Saint LouisIllinois, United States
    811.7×
  51. 51LinaresMaule Region, Chile
    811.7×
  52. 52ChillánÑuble, Chile
    811.7×
  53. 53CuranilahueBiobio, Chile
    801.6×
  54. 54ModugnoApulia, Italy
    801.6×
  55. 55ChennaiTamil Nadu, India
    801.6×
  56. 56Candler-McAfeeGeorgia, United States
    791.6×
  57. 57University CityMissouri, United States
    791.6×
  58. 58EvansvilleIndiana, United States
    791.6×
  59. 59ThessaloníkiCentral Macedonia, Greece
    781.6×
  60. 59JasperIndiana, United States
    781.6×
  61. 61AcharnésAttica, Greece
    781.6×
  62. 61MostaIl-Mosta, Malta
    781.6×
  63. 61TalcaMaule Region, Chile
    781.6×
  64. 64Frýdek-MístekMoravian-Silesian Region, Czechia
    781.6×
  65. 64AnconaThe Marches, Italy
    781.6×
  66. 64CranbrookBritish Columbia, Canada
    781.6×
  67. 67Český TěšínMoravian-Silesian Region, Czechia
    781.6×
  68. 67JesiThe Marches, Italy
    781.6×
  69. 69ShreveportLouisiana, United States
    771.6×
  70. 70BelgradeCentral Serbia, Serbia
    771.5×
  71. 70San CarlosÑuble, Chile
    771.5×
  72. 70MaconGeorgia, United States
    771.5×
  73. 70Warner RobinsGeorgia, United States
    771.5×
  74. 74Nong KhaemBangkok, Thailand
    771.5×
  75. 74HuelvaAndalusia, Spain
    771.5×
  76. 74TemucoAraucania, Chile
    771.5×
  77. 74SpringfieldIllinois, United States
    771.5×
  78. 78AntofagastaAntofagasta, Chile
    771.5×
  79. 79Little RockArkansas, United States
    761.5×
  80. 80Maebaru-chūōFukuoka, Japan
    761.5×
  81. 80SpringdaleArkansas, United States
    761.5×
  82. 82GainesvilleGeorgia, United States
    761.5×
  83. 83TulsaOklahoma, United States
    761.5×
  84. 84AlgecirasAndalusia, Spain
    761.5×
  85. 85DecaturIllinois, United States
    751.5×
  86. 85LibertyMissouri, United States
    751.5×
  87. 85JolietIllinois, United States
    751.5×
  88. 88HyderabadTelangana, India
    751.5×
  89. 88HavířovMoravian-Silesian Region, Czechia
    751.5×
  90. 88SalernoCampania, Italy
    751.5×
  91. 91ShenyangLiaoning, China
    751.5×
  92. 91Ferry PassFlorida, United States
    751.5×
  93. 91HernandoMississippi, United States
    751.5×
  94. 94AnkenyIowa, United States
    751.5×
  95. 95East RidgeTennessee, United States
    751.5×
  96. 95MidwayFlorida, United States
    751.5×
  97. 97AricaArica y Parinacota Region, Chile
    741.4×
  98. 97Franklin ParkIllinois, United States
    741.4×
  99. 99AlbanyGeorgia, United States
    741.4×
  100. 100RoveretoTrentino-Alto Adige, Italy
    741.4×
  101. 101PaducahKentucky, United States
    741.4×
  102. 102TrnavaTrnava Region, Slovakia
    741.4×
  103. 103AntananarivoAnalamanga, Madagascar
    741.4×
  104. 104NorthbrookIllinois, United States
    731.4×
  105. 105LawrencevilleGeorgia, United States
    731.4×
  106. 105JeffersonvilleIndiana, United States
    731.4×
  107. 107CasertaCampania, Italy
    731.4×
  108. 107Valley StationKentucky, United States
    731.4×
  109. 107HollandMichigan, United States
    731.4×
  110. 107BakersfieldCalifornia, United States
    731.4×
  111. 111HumennéPrešov Region, Slovakia
    731.4×
  112. 111ColumbusGeorgia, United States
    731.4×
  113. 113Granite CityIllinois, United States
    721.4×
  114. 113JenksOklahoma, United States
    721.4×
  115. 115BitolaBitola, North Macedonia
    721.4×
  116. 116PrešovPrešov Region, Slovakia
    721.4×
  117. 116ValdostaGeorgia, United States
    721.4×
  118. 118GuangzhouGuangdong, China
    721.4×
  119. 118JeffersontownKentucky, United States
    721.4×
  120. 118TexarkanaTexas, United States
    721.4×
  121. 118MuscatineIowa, United States
    721.4×
  122. 122AugustaGeorgia, United States
    721.3×
  123. 122DerbyKansas, United States
    721.3×
  124. 122LouisvilleKentucky, United States
    721.3×
  125. 122St. LouisMissouri, United States
    721.3×
  126. 122ChattanoogaTennessee, United States
    721.3×
  127. 122KnoxvilleTennessee, United States
    721.3×
  128. 128IndianapolisIndiana, United States
    711.3×
  129. 128PeoriaIllinois, United States
    711.3×
  130. 128VernonBritish Columbia, Canada
    711.3×
  131. 131BakuBaki, Azerbaijan
    711.3×
  132. 131BratislavaBratislava Region, Slovakia
    711.3×
  133. 131Falconara MarittimaThe Marches, Italy
    711.3×
  134. 131Alto HospicioTarapacá, Chile
    711.3×
  135. 135ToméBiobio, Chile
    711.3×
  136. 135CopiapóAtacama, Chile
    711.3×
  137. 135NapervilleIllinois, United States
    711.3×
  138. 138São PauloSão Paulo, Brazil
    711.3×
  139. 139Ponca CityOklahoma, United States
    711.3×
  140. 140TocopillaAntofagasta, Chile
    711.3×
  141. 140CoquimboCoquimbo Region, Chile
    711.3×
  142. 140McDonoughGeorgia, United States
    711.3×
  143. 140EdmondOklahoma, United States
    711.3×
  144. 140MooreOklahoma, United States
    711.3×
  145. 145Saint AndrewsSouth Carolina, United States
    701.3×
  146. 146SalorTashkent Region, Uzbekistan
    701.3×
  147. 146TrentoTrentino-Alto Adige, Italy
    701.3×
  148. 146VeniceFlorida, United States
    701.3×
  149. 149Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    701.3×
  150. 149ŻabbarĦaż-Żabbar, Malta
    701.3×
  151. 149GadsdenAlabama, United States
    701.3×
  152. 149OlatheKansas, United States
    701.3×
  153. 149WichitaKansas, United States
    701.3×
  154. 149Saint MatthewsKentucky, United States
    701.3×
  155. 149Saint JosephMissouri, United States
    701.3×
  156. 149Calumet CityIllinois, United States
    701.3×
  157. 157KhalándrionAttica, Greece
    701.3×
  158. 157NišCentral Serbia, Serbia
    701.3×
  159. 157MonacoMunicipality of Monaco, Monaco
    701.3×
  160. 157NitraNitra Region, Slovakia
    701.3×
  161. 157MontgomeryAlabama, United States
    701.3×
  162. 157ElizabethtownKentucky, United States
    701.3×
  163. 157PortervilleCalifornia, United States
    701.3×
  164. 164Banja LukaSrpska, Bosnia and Herzegovina
    701.3×
  165. 164Kansas CityKansas, United States
    701.3×
  166. 164DyersburgTennessee, United States
    701.3×
  167. 167NiceProvence-Alpes-Côte d'Azur, France
    691.3×
  168. 167East LakeFlorida, United States
    691.3×
  169. 169La Línea de la ConcepciónAndalusia, Spain
    691.3×
  170. 169Phenix CityAlabama, United States
    691.3×
  171. 169HattiesburgMississippi, United States
    691.3×
  172. 172DelhiDelhi, India
    691.3×
  173. 173Ulu BedokSingapore
    691.2×
  174. 173MasonOhio, United States
    691.2×
  175. 173ItoshimaFukuoka, Japan
    691.2×
  176. 176New OrleansLouisiana, United States
    691.2×
  177. 176PascagoulaMississippi, United States
    691.2×
  178. 176NorwoodOhio, United States
    691.2×
  179. 176McAlesterOklahoma, United States
    691.2×
  180. 176RockfordIllinois, United States
    691.2×
  181. 176LiberpolisCounty of Osijek-Baranja, Croatia
    691.2×
  182. 182CannesProvence-Alpes-Côte d'Azur, France
    691.2×
  183. 182VigoGalicia, Spain
    691.2×
  184. 182Bonita SpringsFlorida, United States
    691.2×
  185. 182FishersIndiana, United States
    691.2×
  186. 182Oklahoma CityOklahoma, United States
    691.2×
  187. 182JacksonTennessee, United States
    691.2×
  188. 188Karachilow-cost sensorsSindh, Pakistan
    681.2×
  189. 188Terre HauteIndiana, United States
    681.2×
  190. 188KingsportTennessee, United States
    681.2×
  191. 191ChiguayanteBiobio, Chile
    681.2×
  192. 191Fort SmithArkansas, United States
    681.2×
  193. 191TallahasseeFlorida, United States
    681.2×
  194. 191ClintonIowa, United States
    681.2×
  195. 191PortageIndiana, United States
    681.2×
  196. 196RuseRuse, Bulgaria
    681.2×
  197. 196LemayMissouri, United States
    681.2×
  198. 196CincinnatiOhio, United States
    681.2×
  199. 199BolzanoTrentino-Alto Adige, Italy
    681.2×
  200. 199Des MoinesIowa, United States
    681.2×

Top 200 of 1,699 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

Use this board

SmogRank, most polluted cities, PM2.5, August 23, 2023, smogrank.com/history/2023-08-23 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.