SmogRank / History / September 29, 2023

Most polluted cities on September 29, 2023

1,657 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 150.0 µg/m³. Each city's own local calendar day.

← Peshawar 150.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for September 29, 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. 1Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    22510.0×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    1695.4×
  3. 3ManamaManama, Bahrain
    1655.0×
  4. 4JeddahMecca Region, Saudi Arabia
    1655.0×
  5. 5KolkataWest Bengal, India
    1594.5×
  6. 6DelhiDelhi, India
    1554.1×
  7. 7JakartaJakarta, Indonesia
    1463.6×
  8. 8Dhakalow-cost sensorsDhaka Division, Bangladesh
    1363.3×
  9. 9TlaquepaqueJalisco, Mexico
    1323.2×
  10. 10Kampalalow-cost sensorsCentral Region, Uganda
    1253.0×
  11. 11Karachilow-cost sensorsSindh, Pakistan
    1222.9×
  12. 12CoyhaiqueAysén, Chile
    1212.9×
  13. 13Grande PrairieAlberta, Canada
    1192.8×
  14. 14Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1182.8×
  15. 15CairoCairo, Egypt
    1172.8×
  16. 16MumbaiMaharashtra, India
    1162.8×
  17. 17Fort McMurrayAlberta, Canada
    1162.8×
  18. 18Ulu BedokSingapore
    1102.6×
  19. 19Kuala LumpurKuala Lumpur, Malaysia
    1062.5×
  20. 19HualquiBiobio, Chile
    1062.5×
  21. 21Ang Mo Kio New TownSingapore
    1042.4×
  22. 22Puerto VarasLos Lagos Region, Chile
    1032.4×
  23. 23Quezon Citylow-cost sensorsNational Capital Region, Philippines
    1002.4×
  24. 24DushanbeDushanbe, Tajikistan
    972.3×
  25. 25HanoiHanoi, Vietnam
    962.2×
  26. 26TemucoAraucania, Chile
    952.2×
  27. 26RancaguaO'Higgins Region, Chile
    952.2×
  28. 28Fort St. JohnBritish Columbia, Canada
    942.2×
  29. 29RengoO'Higgins Region, Chile
    932.1×
  30. 30La UniónLos Ríos Region, Chile
    932.1×
  31. 31SantiagoSantiago Metropolitan, Chile
    922.1×
  32. 32San Salvador TizatlalliMéxico, Mexico
    902.0×
  33. 33NairobiNairobi County, Kenya
    902.0×
  34. 34OsornoLos Lagos Region, Chile
    892.0×
  35. 35Puente AltoSantiago Metropolitan, Chile
    892.0×
  36. 36TalaganteSantiago Metropolitan, Chile
    881.9×
  37. 37San Francisco TlalcilalcalpanMéxico, Mexico
    881.9×
  38. 38Queenstown Estatelow-cost sensorsSingapore
    881.9×
  39. 39TolucaMéxico, Mexico
    871.9×
  40. 40XonacatlánMéxico, Mexico
    861.9×
  41. 41MostÚstí nad Labem Region, Czechia
    861.9×
  42. 42MexicaliBaja California, Mexico
    851.8×
  43. 43CoronelBiobio, Chile
    851.8×
  44. 44HyderabadTelangana, India
    831.8×
  45. 45Islamabadlow-cost sensorsIslamabad, Pakistan
    831.8×
  46. 46GuangzhouGuangdong, China
    831.7×
  47. 46GranbyQuebec, Canada
    831.7×
  48. 48GuadalajaraJalisco, Mexico
    811.7×
  49. 49Ciudad JuárezChihuahua, Mexico
    811.7×
  50. 49EdmontonAlberta, Canada
    811.7×
  51. 51Puerto AysénAysén, Chile
    811.7×
  52. 52SarajevoFederation of B&H, Bosnia and Herzegovina
    801.6×
  53. 52QuillotaValparaiso, Chile
    801.6×
  54. 52CuranilahueBiobio, Chile
    801.6×
  55. 55AnconaThe Marches, Italy
    801.6×
  56. 56NacimientoBiobio, Chile
    791.6×
  57. 57Kathmandulow-cost sensorsBagmati Province, Nepal
    791.6×
  58. 58SofiaSofia-Capital, Bulgaria
    781.6×
  59. 58NaplesCampania, Italy
    781.6×
  60. 58Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    781.6×
  61. 61PristinaPristina, Kosovo
    781.6×
  62. 62ValdiviaLos Ríos Region, Chile
    781.6×
  63. 62ConcónValparaiso, Chile
    781.6×
  64. 62SherbrookeQuebec, Canada
    781.6×
  65. 65AntananarivoAnalamanga, Madagascar
    781.6×
  66. 65GroßostheimBavaria, Germany
    781.6×
  67. 67St. AlbertAlberta, Canada
    771.6×
  68. 68TepliceÚstí nad Labem Region, Czechia
    771.5×
  69. 68AlessandriaPiedmont, Italy
    771.5×
  70. 68MontréalQuebec, Canada
    771.5×
  71. 71CuricóMaule Region, Chile
    771.5×
  72. 72DrummondvilleQuebec, Canada
    761.5×
  73. 73ToméBiobio, Chile
    761.5×
  74. 73TalcahuanoBiobio, Chile
    761.5×
  75. 75Český TěšínMoravian-Silesian Region, Czechia
    761.5×
  76. 75QuinteroValparaiso, Chile
    761.5×
  77. 75L'Ancienne-LoretteQuebec, Canada
    761.5×
  78. 78OlomoucOlomouc Region, Czechia
    761.5×
  79. 79AntofagastaAntofagasta, Chile
    751.5×
  80. 80RuseRuse, Bulgaria
    751.5×
  81. 81DěčínÚstí nad Labem Region, Czechia
    751.5×
  82. 81BrossardQuebec, Canada
    751.5×
  83. 83TrnavaTrnava Region, Slovakia
    741.4×
  84. 84Addis AbabaAddis Ababa, Ethiopia
    741.4×
  85. 84N'DjamenaN’Djaména, Chad
    741.4×
  86. 84CornwallOntario, Canada
    741.4×
  87. 87Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    741.4×
  88. 88Ústí nad LabemÚstí nad Labem Region, Czechia
    731.4×
  89. 89TocopillaAntofagasta, Chile
    731.4×
  90. 90CauquenesMaule Region, Chile
    731.4×
  91. 90ZapopanJalisco, Mexico
    731.4×
  92. 90BurlingtonVermont, United States
    731.4×
  93. 93Mladá BoleslavCentral Bohemia, Czechia
    731.4×
  94. 93BrawleyCalifornia, United States
    731.4×
  95. 95AstanaAstana, Kazakhstan
    721.4×
  96. 96Falconara MarittimaThe Marches, Italy
    721.4×
  97. 97PřerovOlomouc Region, Czechia
    721.3×
  98. 98Saint-Jean-sur-RichelieuQuebec, Canada
    711.3×
  99. 99LitvínovÚstí nad Labem Region, Czechia
    711.3×
  100. 99Tepeji del Río de OcampoHidalgo, Mexico
    711.3×
  101. 99Trois-RivièresQuebec, Canada
    711.3×
  102. 102ShenyangLiaoning, China
    711.3×
  103. 102OstravaMoravian-Silesian Region, Czechia
    711.3×
  104. 102Hradec KrálovéHradec Králové Region, Czechia
    711.3×
  105. 102CuernavacaMorelos, Mexico
    711.3×
  106. 106WoodlandsSingapore
    711.3×
  107. 106BamakoBamako, Mali
    711.3×
  108. 106CopiapóAtacama, Chile
    711.3×
  109. 106QuébecQuebec, Canada
    711.3×
  110. 110Little RockArkansas, United States
    701.3×
  111. 110Lexingtonlow-cost sensorsMassachusetts, United States
    701.3×
  112. 112DorvalQuebec, Canada
    701.3×
  113. 112SaguenayQuebec, Canada
    701.3×
  114. 114GrazStyria, Austria
    701.3×
  115. 115Puerto MonttLos Lagos Region, Chile
    701.3×
  116. 116Sherwood ParkAlberta, Canada
    691.3×
  117. 117SalorTashkent Region, Uzbekistan
    691.3×
  118. 117ZnojmoSouth Moravian, Czechia
    691.3×
  119. 117PardubicePardubice Region, Czechia
    691.3×
  120. 117La SerenaCoquimbo Region, Chile
    691.3×
  121. 117CoquimboCoquimbo Region, Chile
    691.3×
  122. 117Ciudad General EscobedoNuevo León, Mexico
    691.3×
  123. 123SalamancaGuanajuato, Mexico
    691.3×
  124. 124MiskolcBorsod-Abaúj-Zemplén, Hungary
    691.2×
  125. 124RutlandVermont, United States
    691.2×
  126. 126TeltowBrandenburg, Germany
    691.2×
  127. 126LiberecLiberec Region, Czechia
    691.2×
  128. 126IndioCalifornia, United States
    691.2×
  129. 126OttawaOntario, Canada
    691.2×
  130. 130Wan ChaiWan Chai, Hong Kong
    681.2×
  131. 130Saint JohnNew Brunswick, Canada
    681.2×
  132. 132IaşiIași County, Romania
    681.2×
  133. 132Valašské MeziříčíZlín, Czechia
    681.2×
  134. 134BelgradeCentral Serbia, Serbia
    681.2×
  135. 134San Pedro de la PazBiobio, Chile
    681.2×
  136. 136Prince AlbertSaskatchewan, Canada
    681.2×
  137. 137TetovoTetovo, North Macedonia
    671.2×
  138. 137NitraNitra Region, Slovakia
    671.2×
  139. 137MartinŽilina Region, Slovakia
    671.2×
  140. 137CholulaPuebla, Mexico
    671.2×
  141. 137TijuanaBaja California, Mexico
    671.2×
  142. 137KeeneNew Hampshire, United States
    671.2×
  143. 143SenicaTrnava Region, Slovakia
    671.2×
  144. 143QuilpuéValparaiso, Chile
    671.2×
  145. 143Santa CatarinaNuevo León, Mexico
    671.2×
  146. 146BakuBaki, Azerbaijan
    671.2×
  147. 146LivornoTuscany, Italy
    671.2×
  148. 148BerounCentral Bohemia, Czechia
    671.2×
  149. 148Civitanova MarcheThe Marches, Italy
    671.2×
  150. 148PueblaPuebla, Mexico
    671.2×
  151. 148San CarlosÑuble, Chile
    671.2×
  152. 148CelayaGuanajuato, Mexico
    671.2×
  153. 148BirminghamAlabama, United States
    671.2×
  154. 154ŽideniceSouth Moravian, Czechia
    671.2×
  155. 154Viña del MarValparaiso, Chile
    671.2×
  156. 156BohumínMoravian-Silesian Region, Czechia
    661.2×
  157. 156ChiguayanteBiobio, Chile
    661.2×
  158. 158KošiceKošice Region, Slovakia
    661.2×
  159. 158Bernau bei BerlinBrandenburg, Germany
    661.2×
  160. 158BerlinState of Berlin, Germany
    661.2×
  161. 161AthensAttica, Greece
    661.1×
  162. 161ChillánÑuble, Chile
    661.1×
  163. 163FontanaCalifornia, United States
    661.1×
  164. 164SzegedCsongrád, Hungary
    661.1×
  165. 164AugustaMaine, United States
    661.1×
  166. 166TsushimaNagasaki, Japan
    661.1×
  167. 167TalcaMaule Region, Chile
    651.1×
  168. 167ConcepciónBiobio, Chile
    651.1×
  169. 167Alto HospicioTarapacá, Chile
    651.1×
  170. 170LinzUpper Austria, Austria
    651.1×
  171. 170KladnoCentral Bohemia, Czechia
    651.1×
  172. 170Frýdek-MístekMoravian-Silesian Region, Czechia
    651.1×
  173. 170CalamaAntofagasta, Chile
    651.1×
  174. 174PraguePrague, Czechia
    651.1×
  175. 174ValdemoroMadrid, Spain
    651.1×
  176. 174La Crescenta-Montroselow-cost sensorsCalifornia, United States
    651.1×
  177. 177MiyakonojōMiyazaki, Japan
    651.1×
  178. 177SliemaTas-Sliema, Malta
    651.1×
  179. 177NeuenhagenBrandenburg, Germany
    651.1×
  180. 177LotaBiobio, Chile
    651.1×
  181. 181CapannoriTuscany, Italy
    651.1×
  182. 182PrešovPrešov Region, Slovakia
    641.1×
  183. 182Samut SakhonSamut Sakhon, Thailand
    641.1×
  184. 184Jurong WestSingapore
    641.1×
  185. 184BrnoSouth Moravian, Czechia
    641.1×
  186. 184DallasTexas, United States
    641.1×
  187. 187BitolaBitola, North Macedonia
    641.1×
  188. 187SaltilloCoahuila, Mexico
    641.1×
  189. 189ZlínZlín, Czechia
    641.1×
  190. 189Ciudad ApodacaNuevo León, Mexico
    641.1×
  191. 191NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    641.1×
  192. 191Abujalow-cost sensorsFCT, Nigeria
    641.1×
  193. 191DunaújvárosFejér, Hungary
    641.1×
  194. 191MóstolesMadrid, Spain
    641.1×
  195. 191MontemurloTuscany, Italy
    641.1×
  196. 196PratoTuscany, Italy
    631.1×
  197. 197TrentoTrentino-Alto Adige, Italy
    631.0×
  198. 197SalernoCampania, Italy
    631.0×
  199. 197KirishimaKagoshima, Japan
    631.0×
  200. 200Klagenfurt am WörtherseeCarinthia, Austria
    631.0×

Top 200 of 1,657 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, September 29, 2023, smogrank.com/history/2023-09-29 (accessed 2 Oct 2026).

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