SmogRank / History / October 11, 2023

Most polluted cities on October 11, 2023

1,585 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 163.0 µg/m³. Each city's own local calendar day.

← Dhaka 163.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for October 11, 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. 1Dhakalow-cost sensorsDhaka Division, Bangladesh
    23810.9×
  2. 2N'DjamenaN’Djaména, Chad
    23310.5×
  3. 3AntananarivoAnalamanga, Madagascar
    1836.7×
  4. 4KolkataWest Bengal, India
    1745.9×
  5. 5DelhiDelhi, India
    1715.6×
  6. 6Lahorelow-cost sensorsPunjab, Pakistan
    1675.2×
  7. 7HyderabadTelangana, India
    1564.2×
  8. 8TemucoAraucania, Chile
    1523.8×
  9. 9ShenyangLiaoning, China
    1523.8×
  10. 10Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1363.3×
  11. 11San Luis PotosíSan Luis Potosí, Mexico
    1273.1×
  12. 12Kathmandulow-cost sensorsBagmati Province, Nepal
    1253.0×
  13. 13ManamaManama, Bahrain
    1243.0×
  14. 13CoyhaiqueAysén, Chile
    1243.0×
  15. 15Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1222.9×
  16. 16BamakoBamako, Mali
    1182.8×
  17. 17CairoCairo, Egypt
    1152.7×
  18. 18JakartaJakarta, Indonesia
    1142.7×
  19. 19JeddahMecca Region, Saudi Arabia
    1132.7×
  20. 20Ang Mo Kio New TownSingapore
    1092.6×
  21. 21BirminghamAlabama, United States
    1042.5×
  22. 22Ulu BedokSingapore
    1022.4×
  23. 23Abujalow-cost sensorsFCT, Nigeria
    1002.3×
  24. 24Kampalalow-cost sensorsCentral Region, Uganda
    982.3×
  25. 25Islamabadlow-cost sensorsIslamabad, Pakistan
    982.3×
  26. 26SalorTashkent Region, Uzbekistan
    972.2×
  27. 27BeijingBeijing, China
    952.2×
  28. 27Puerto VarasLos Lagos Region, Chile
    952.2×
  29. 29Samut SakhonSamut Sakhon, Thailand
    952.2×
  30. 30DushanbeDushanbe, Tajikistan
    932.1×
  31. 31SarajevoFederation of B&H, Bosnia and Herzegovina
    922.1×
  32. 32PristinaPristina, Kosovo
    922.1×
  33. 33HanoiHanoi, Vietnam
    892.0×
  34. 34TocopillaAntofagasta, Chile
    892.0×
  35. 35Queenstown Estatelow-cost sensorsSingapore
    861.9×
  36. 36MexicaliBaja California, Mexico
    851.8×
  37. 37Karachilow-cost sensorsSindh, Pakistan
    851.8×
  38. 37ValdiviaLos Ríos Region, Chile
    851.8×
  39. 39HualpénBiobio, Chile
    851.8×
  40. 40Victoria de DurangoDurango, Mexico
    851.8×
  41. 41La UniónLos Ríos Region, Chile
    831.7×
  42. 42Puente AltoSantiago Metropolitan, Chile
    821.7×
  43. 43Falconara MarittimaThe Marches, Italy
    821.7×
  44. 44NairobiNairobi County, Kenya
    811.7×
  45. 45OsornoLos Lagos Region, Chile
    801.7×
  46. 46SantiagoSantiago Metropolitan, Chile
    801.6×
  47. 47Addis AbabaAddis Ababa, Ethiopia
    801.6×
  48. 48AlgiersAlgiers, Algeria
    791.6×
  49. 49Asunciónlow-cost sensorsAsuncion, Paraguay
    791.6×
  50. 50HualquiBiobio, Chile
    781.6×
  51. 51NacimientoBiobio, Chile
    771.5×
  52. 52AvignonProvence-Alpes-Côte d'Azur, France
    771.5×
  53. 52CoronelBiobio, Chile
    771.5×
  54. 54Phra PradaengSamut Prakan, Thailand
    761.5×
  55. 54Nong KhaemBangkok, Thailand
    761.5×
  56. 54AricaArica y Parinacota Region, Chile
    761.5×
  57. 57CuernavacaMorelos, Mexico
    751.5×
  58. 58Bang Bo DistrictSamut Prakan, Thailand
    751.5×
  59. 59Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    751.5×
  60. 60JesiThe Marches, Italy
    751.5×
  61. 60RancaguaO'Higgins Region, Chile
    751.5×
  62. 60HernandoMississippi, United States
    751.5×
  63. 63Banja LukaSrpska, Bosnia and Herzegovina
    741.4×
  64. 64CuricóMaule Region, Chile
    741.4×
  65. 65McDonoughGeorgia, United States
    741.4×
  66. 66NaplesCampania, Italy
    731.4×
  67. 67CopiapóAtacama, Chile
    731.4×
  68. 68KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    721.3×
  69. 69Grande PrairieAlberta, Canada
    711.3×
  70. 70IndioCalifornia, United States
    711.3×
  71. 71TalcahuanoBiobio, Chile
    711.3×
  72. 71QuillotaValparaiso, Chile
    711.3×
  73. 73QuinteroValparaiso, Chile
    711.3×
  74. 74AntofagastaAntofagasta, Chile
    711.3×
  75. 75WoodlandsSingapore
    711.3×
  76. 76BangkokBangkok, Thailand
    701.3×
  77. 76Alto HospicioTarapacá, Chile
    701.3×
  78. 78Nakhon PathomNakhon Pathom, Thailand
    701.3×
  79. 78Karlova VesBratislava Region, Slovakia
    701.3×
  80. 80PerpignanOccitanie, France
    691.3×
  81. 80ArlesProvence-Alpes-Côte d'Azur, France
    691.3×
  82. 80CoquimboCoquimbo Region, Chile
    691.3×
  83. 80Ciudad ApodacaNuevo León, Mexico
    691.3×
  84. 84MontpellierOccitanie, France
    691.3×
  85. 84Los ÁngelesBiobio, Chile
    691.3×
  86. 84HueytownAlabama, United States
    691.3×
  87. 84MaconGeorgia, United States
    691.3×
  88. 88TalaganteSantiago Metropolitan, Chile
    691.3×
  89. 89BeneventoCampania, Italy
    691.2×
  90. 90MiskolcBorsod-Abaúj-Zemplén, Hungary
    691.2×
  91. 91LunelOccitanie, France
    681.2×
  92. 92CardiffWales, United Kingdom
    681.2×
  93. 93BerounCentral Bohemia, Czechia
    681.2×
  94. 94MumbaiMaharashtra, India
    681.2×
  95. 95La SerenaCoquimbo Region, Chile
    681.2×
  96. 95CuranilahueBiobio, Chile
    681.2×
  97. 97GuangzhouGuangdong, China
    671.2×
  98. 98TetovoTetovo, North Macedonia
    671.2×
  99. 98Tha BoNong Khai, Thailand
    671.2×
  100. 98ToméBiobio, Chile
    671.2×
  101. 101AnconaThe Marches, Italy
    671.2×
  102. 101Phenix CityAlabama, United States
    671.2×
  103. 103BitolaBitola, North Macedonia
    671.2×
  104. 104San CarlosÑuble, Chile
    671.2×
  105. 105Puerto MonttLos Lagos Region, Chile
    661.1×
  106. 106Puerto AysénAysén, Chile
    661.1×
  107. 107ZnojmoSouth Moravian, Czechia
    661.1×
  108. 107OlomoucOlomouc Region, Czechia
    661.1×
  109. 107CalexicoCalifornia, United States
    661.1×
  110. 107NipomoCalifornia, United States
    661.1×
  111. 107TerraceBritish Columbia, Canada
    661.1×
  112. 112Jurong WestSingapore
    651.1×
  113. 112LinzUpper Austria, Austria
    651.1×
  114. 112DunkirkHauts-de-France, France
    651.1×
  115. 112Santa CatarinaNuevo León, Mexico
    651.1×
  116. 116CalamaAntofagasta, Chile
    651.1×
  117. 117Samut PrakanSamut Prakan, Thailand
    651.1×
  118. 117LyonAuvergne-Rhône-Alpes, France
    651.1×
  119. 117ConcónValparaiso, Chile
    651.1×
  120. 120NiceProvence-Alpes-Côte d'Azur, France
    651.1×
  121. 120BrnoSouth Moravian, Czechia
    651.1×
  122. 120Viña del MarValparaiso, Chile
    651.1×
  123. 123LotaBiobio, Chile
    641.1×
  124. 123ChiguayanteBiobio, Chile
    641.1×
  125. 125SalernoCampania, Italy
    641.1×
  126. 125CauquenesMaule Region, Chile
    641.1×
  127. 125AugustaGeorgia, United States
    641.1×
  128. 128DěčínÚstí nad Labem Region, Czechia
    641.1×
  129. 128RengoO'Higgins Region, Chile
    641.1×
  130. 130Mueang NonthaburiNonthaburi, Thailand
    641.1×
  131. 130TraunUpper Austria, Austria
    641.1×
  132. 130LormontNew Aquitaine, France
    641.1×
  133. 130BordeauxNew Aquitaine, France
    641.1×
  134. 130SalamancaGuanajuato, Mexico
    641.1×
  135. 135Clermont-FerrandAuvergne-Rhône-Alpes, France
    641.1×
  136. 136TalcaMaule Region, Chile
    631.1×
  137. 136GainesvilleGeorgia, United States
    631.1×
  138. 136LawrencevilleGeorgia, United States
    631.1×
  139. 139Candler-McAfeeGeorgia, United States
    631.0×
  140. 140WolfsbergCarinthia, Austria
    631.0×
  141. 140Arroyo GrandeCalifornia, United States
    631.0×
  142. 142KagoshimaKagoshima, Japan
    631.0×
  143. 142MarseilleProvence-Alpes-Côte d'Azur, France
    631.0×
  144. 142TrussvilleAlabama, United States
    631.0×
  145. 145GrazStyria, Austria
    631.0×
  146. 145RoubaixHauts-de-France, France
    631.0×
  147. 145NîmesOccitanie, France
    631.0×
  148. 145La SpeziaLiguria, Italy
    631.0×
  149. 145ChillánÑuble, Chile
    631.0×
  150. 150ThionvilleGrand Est, France
    621.0×
  151. 150BartlettTennessee, United States
    621.0×
  152. 152SzegedCsongrád, Hungary
    621.0×
  153. 152DunaújvárosFejér, Hungary
    621.0×
  154. 154Khlong LuangPathum Thani, Thailand
    621.0×
  155. 154ReimsGrand Est, France
    621.0×
  156. 154GyálPest County, Hungary
    621.0×
  157. 154TrentoTrentino-Alto Adige, Italy
    621.0×
  158. 158KlosterneuburgLower Austria, Austria
    621.0×
  159. 158Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    621.0×
  160. 158AthensGeorgia, United States
    621.0×
  161. 158BensalemPennsylvania, United States
    621.0×
  162. 162MonterreyNuevo León, Mexico
    611.0×
  163. 162AtlantaGeorgia, United States
    611.0×
  164. 164GivorsAuvergne-Rhône-Alpes, France
    611.0×
  165. 164ŽideniceSouth Moravian, Czechia
    611.0×
  166. 164GadsdenAlabama, United States
    611.0×
  167. 164West MemphisArkansas, United States
    611.0×
  168. 164Saint AndrewsSouth Carolina, United States
    611.0×
  169. 169CannesProvence-Alpes-Côte d'Azur, France
    611.0×
  170. 169Mladá BoleslavCentral Bohemia, Czechia
    611.0×
  171. 169CasertaCampania, Italy
    611.0×
  172. 169FlorenceSouth Carolina, United States
    611.0×
  173. 173AsprópyrgosAttica, Greece
    611.0×
  174. 173Ústí nad LabemÚstí nad Labem Region, Czechia
    611.0×
  175. 175PátraWest Greece, Greece
    611.0×
  176. 175AnsfeldenUpper Austria, Austria
    611.0×
  177. 175ValenceAuvergne-Rhône-Alpes, France
    611.0×
  178. 175PraguePrague, Czechia
    611.0×
  179. 175CelayaGuanajuato, Mexico
    611.0×
  180. 180Canvey IslandEngland, United Kingdom
    610.9×
  181. 181BelgradeCentral Serbia, Serbia
    600.9×
  182. 181MontemurloTuscany, Italy
    600.9×
  183. 183OpavaMoravian-Silesian Region, Czechia
    600.9×
  184. 183TurinPiedmont, Italy
    600.9×
  185. 183QuilpuéValparaiso, Chile
    600.9×
  186. 183ValdostaGeorgia, United States
    600.9×
  187. 187MonacoMunicipality of Monaco, Monaco
    600.9×
  188. 187EsztergomKomárom-Esztergom, Hungary
    600.9×
  189. 187GreenvilleSouth Carolina, United States
    600.9×
  190. 190ColomboWestern Province, Sri Lanka
    600.9×
  191. 190KadaňÚstí nad Labem Region, Czechia
    600.9×
  192. 190IndianapolisIndiana, United States
    600.9×
  193. 190ClintonIowa, United States
    600.9×
  194. 194SendaiKagoshima, Japan
    600.9×
  195. 194Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    600.9×
  196. 194CapannoriTuscany, Italy
    600.9×
  197. 197PlymouthEngland, United Kingdom
    590.9×
  198. 197ValenciennesHauts-de-France, France
    590.9×
  199. 197LilleHauts-de-France, France
    590.9×
  200. 197GrenobleAuvergne-Rhône-Alpes, France
    590.9×

Top 200 of 1,585 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, October 11, 2023, smogrank.com/history/2023-10-11 (accessed 2 Oct 2026).

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