SmogRank / History / October 29, 2023

Most polluted cities on October 29, 2023

1,793 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 320.0 µg/m³. Each city's own local calendar day.

← Lahore 320.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for October 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. 1Lahorelow-cost sensorsPunjab, Pakistan
    48921.3×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    23010.3×
  3. 3BeijingBeijing, China
    22910.3×
  4. 4DelhiDelhi, India
    2219.7×
  5. 5KolkataWest Bengal, India
    1846.8×
  6. 6Dhakalow-cost sensorsDhaka Division, Bangladesh
    1786.2×
  7. 7N'DjamenaN’Djaména, Chad
    1705.5×
  8. 8ShenyangLiaoning, China
    1695.4×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    1624.8×
  10. 10Karachilow-cost sensorsSindh, Pakistan
    1574.3×
  11. 11HyderabadTelangana, India
    1544.0×
  12. 12CairoCairo, Egypt
    1544.0×
  13. 13MumbaiMaharashtra, India
    1533.9×
  14. 14IlindenIlinden, North Macedonia
    1423.5×
  15. 15Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1283.1×
  16. 16JakartaJakarta, Indonesia
    1102.6×
  17. 17HanoiHanoi, Vietnam
    1072.5×
  18. 18Abujalow-cost sensorsFCT, Nigeria
    992.3×
  19. 19GuangzhouGuangdong, China
    912.1×
  20. 20BakuBaki, Azerbaijan
    912.0×
  21. 21PristinaPristina, Kosovo
    912.0×
  22. 22KigaliKigali, Rwanda
    892.0×
  23. 23AlessandriaPiedmont, Italy
    861.8×
  24. 24HualpénBiobio, Chile
    851.8×
  25. 24CranbrookBritish Columbia, Canada
    851.8×
  26. 26Kampalalow-cost sensorsCentral Region, Uganda
    851.8×
  27. 26Wan ChaiWan Chai, Hong Kong
    851.8×
  28. 28Kathmandulow-cost sensorsBagmati Province, Nepal
    821.7×
  29. 29SalorTashkent Region, Uzbekistan
    821.7×
  30. 30SarajevoFederation of B&H, Bosnia and Herzegovina
    811.7×
  31. 30BadgerAlaska, United States
    811.7×
  32. 32CoronelBiobio, Chile
    801.7×
  33. 33TijuanaBaja California, Mexico
    801.6×
  34. 34Tha BoNong Khai, Thailand
    781.6×
  35. 35SpokaneWashington, United States
    781.6×
  36. 36AshgabatAshgabat, Turkmenistan
    771.5×
  37. 36NacimientoBiobio, Chile
    771.5×
  38. 38TocopillaAntofagasta, Chile
    771.5×
  39. 39Tuen MunTuen Mun, Hong Kong
    771.5×
  40. 40Tin Shui WaiYuen Long, Hong Kong
    761.5×
  41. 41FresnoCalifornia, United States
    761.5×
  42. 42YumaArizona, United States
    761.5×
  43. 43ParklandWashington, United States
    751.5×
  44. 43Spokane ValleyWashington, United States
    751.5×
  45. 43DuncanBritish Columbia, Canada
    751.5×
  46. 46TerraceBritish Columbia, Canada
    751.5×
  47. 47San Tung Chung HangIslands, Hong Kong
    741.4×
  48. 48KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    741.4×
  49. 49FanlingNorth District, Hong Kong
    721.4×
  50. 49SalamancaGuanajuato, Mexico
    721.4×
  51. 51Coeur d'AleneIdaho, United States
    721.4×
  52. 52Mong KokYau Tsim Mong District, Hong Kong
    721.3×
  53. 52QuillotaValparaiso, Chile
    721.3×
  54. 54AthensAttica, Greece
    711.3×
  55. 55Tsuen WanTsuen Wan, Hong Kong
    711.3×
  56. 56Prince GeorgeBritish Columbia, Canada
    701.3×
  57. 57QuinteroValparaiso, Chile
    701.3×
  58. 58Port AlberniBritish Columbia, Canada
    701.3×
  59. 59CentraliaWashington, United States
    691.3×
  60. 60Kwai ChungKwai Tsing District, Hong Kong
    691.3×
  61. 61LitvínovÚstí nad Labem Region, Czechia
    691.2×
  62. 62San CarlosÑuble, Chile
    691.2×
  63. 63Quezon Citylow-cost sensorsNational Capital Region, Philippines
    681.2×
  64. 63Sham Shui PoSham Shui Po District, Hong Kong
    681.2×
  65. 65Tai PoTai Po, Hong Kong
    681.2×
  66. 65San Pedro de la PazBiobio, Chile
    681.2×
  67. 67AsprópyrgosAttica, Greece
    681.2×
  68. 67TalcahuanoBiobio, Chile
    681.2×
  69. 69Sau Mau PingKwun Tong District, Hong Kong
    671.2×
  70. 70AltamontOregon, United States
    671.2×
  71. 71SunnysideWashington, United States
    671.2×
  72. 72TetovoTetovo, North Macedonia
    671.2×
  73. 73CalamaAntofagasta, Chile
    661.2×
  74. 74IndioCalifornia, United States
    661.1×
  75. 74RoseburgOregon, United States
    661.1×
  76. 76ConcónValparaiso, Chile
    661.1×
  77. 76LangfordBritish Columbia, Canada
    661.1×
  78. 78MaderaCalifornia, United States
    651.1×
  79. 78HarewoodBritish Columbia, Canada
    651.1×
  80. 80ConakryConakry, Guinea
    651.1×
  81. 81BucharestBucharest, Romania
    651.1×
  82. 81AntananarivoAnalamanga, Madagascar
    651.1×
  83. 81LewistonIdaho, United States
    651.1×
  84. 84Almatylow-cost sensorsAlmaty, Kazakhstan
    651.1×
  85. 85RedmondOregon, United States
    641.1×
  86. 86YakimaWashington, United States
    641.1×
  87. 87Sha TinSha Tin, Hong Kong
    641.1×
  88. 87Viña del MarValparaiso, Chile
    641.1×
  89. 89HanfordCalifornia, United States
    631.1×
  90. 90PiraeusAttica, Greece
    631.0×
  91. 90ClovisCalifornia, United States
    631.0×
  92. 90Walla WallaWashington, United States
    631.0×
  93. 93Addis AbabaAddis Ababa, Ethiopia
    631.0×
  94. 93MiskolcBorsod-Abaúj-Zemplén, Hungary
    631.0×
  95. 93CourtenayBritish Columbia, Canada
    631.0×
  96. 96CorcoranCalifornia, United States
    631.0×
  97. 97RichmondVirginia, United States
    631.0×
  98. 98KošiceKošice Region, Slovakia
    621.0×
  99. 98EugeneOregon, United States
    621.0×
  100. 100AstanaAstana, Kazakhstan
    621.0×
  101. 100DěčínÚstí nad Labem Region, Czechia
    621.0×
  102. 100East HamptonVirginia, United States
    621.0×
  103. 103JeddahMecca Region, Saudi Arabia
    621.0×
  104. 104WeidenBavaria, Germany
    621.0×
  105. 105KlaipėdaKlaipėda County, Lithuania
    611.0×
  106. 106Granite CityIllinois, United States
    611.0×
  107. 106BakersfieldCalifornia, United States
    611.0×
  108. 108Cluj-NapocaCluj County, Romania
    611.0×
  109. 108SkopjeGrad Skopje, North Macedonia
    611.0×
  110. 108GainesvilleGeorgia, United States
    611.0×
  111. 108MoscowIdaho, United States
    611.0×
  112. 112FontanaCalifornia, United States
    611.0×
  113. 112Moses LakeWashington, United States
    611.0×
  114. 112VictoriaBritish Columbia, Canada
    611.0×
  115. 115NišCentral Serbia, Serbia
    611.0×
  116. 115Rose HillVirginia, United States
    611.0×
  117. 115ComptonCalifornia, United States
    611.0×
  118. 118León de los AldamaGuanajuato, Mexico
    610.9×
  119. 118TacomaWashington, United States
    610.9×
  120. 120Ulan BatorUlaanbaatar, Mongolia
    600.9×
  121. 120MercedCalifornia, United States
    600.9×
  122. 120FairbanksAlaska, United States
    600.9×
  123. 123ChesapeakeVirginia, United States
    600.9×
  124. 124AuburnWashington, United States
    600.9×
  125. 125ZnojmoSouth Moravian, Czechia
    600.9×
  126. 125BirminghamAlabama, United States
    600.9×
  127. 125LawrencevilleGeorgia, United States
    600.9×
  128. 125GreensboroNorth Carolina, United States
    600.9×
  129. 125HelenaMontana, United States
    600.9×
  130. 125HermistonOregon, United States
    600.9×
  131. 125PendletonOregon, United States
    600.9×
  132. 132HopewellVirginia, United States
    600.9×
  133. 133KhalándrionAttica, Greece
    590.9×
  134. 133KennesawGeorgia, United States
    590.9×
  135. 135CelayaGuanajuato, Mexico
    590.9×
  136. 135MedfordOregon, United States
    590.9×
  137. 137AcharnésAttica, Greece
    590.9×
  138. 137AlgiersAlgiers, Algeria
    590.9×
  139. 137SpringfieldVirginia, United States
    590.9×
  140. 140Winston-SalemNorth Carolina, United States
    590.9×
  141. 140SquamishBritish Columbia, Canada
    590.9×
  142. 142KlosterneuburgLower Austria, Austria
    580.9×
  143. 142FillmoreCalifornia, United States
    580.9×
  144. 142Jurupa ValleyCalifornia, United States
    580.9×
  145. 142Grants PassOregon, United States
    580.9×
  146. 142RentonWashington, United States
    580.9×
  147. 147PátraWest Greece, Greece
    580.9×
  148. 147RaleighNorth Carolina, United States
    580.9×
  149. 149Sankt PöltenLower Austria, Austria
    580.9×
  150. 150SpartanburgSouth Carolina, United States
    580.8×
  151. 150VernonBritish Columbia, Canada
    580.8×
  152. 152WashingtonDistrict of Columbia, United States
    570.8×
  153. 152EllensburgWashington, United States
    570.8×
  154. 154VancouverWashington, United States
    570.8×
  155. 155ColomboWestern Province, Sri Lanka
    570.8×
  156. 155GapProvence-Alpes-Côte d'Azur, France
    570.8×
  157. 155MorrisvilleNorth Carolina, United States
    570.8×
  158. 155AlbanyOregon, United States
    570.8×
  159. 155Candler-McAfeeGeorgia, United States
    570.8×
  160. 160CraiovaDolj, Romania
    570.8×
  161. 160MurciaMurcia, Spain
    570.8×
  162. 160WaterlooIowa, United States
    570.8×
  163. 160HillsboroOregon, United States
    570.8×
  164. 164ThessaloníkiCentral Macedonia, Greece
    570.8×
  165. 164Silao de la VictoriaGuanajuato, Mexico
    570.8×
  166. 164East RidgeTennessee, United States
    570.8×
  167. 167South LaurelMaryland, United States
    560.8×
  168. 167BrawleyCalifornia, United States
    560.8×
  169. 167LongviewWashington, United States
    560.8×
  170. 167AnchorageAlaska, United States
    560.8×
  171. 171ŻabbarĦaż-Żabbar, Malta
    560.8×
  172. 171CapannoriTuscany, Italy
    560.8×
  173. 171LangleyBritish Columbia, Canada
    560.8×
  174. 174AtlantaGeorgia, United States
    560.8×
  175. 174PullmanWashington, United States
    560.8×
  176. 174Port CoquitlamBritish Columbia, Canada
    560.8×
  177. 177PrešovPrešov Region, Slovakia
    560.8×
  178. 177DeltaBritish Columbia, Canada
    560.8×
  179. 179KagoshimaKagoshima, Japan
    560.8×
  180. 179GreenvilleSouth Carolina, United States
    560.8×
  181. 181ClemmonsNorth Carolina, United States
    550.8×
  182. 181AnaheimCalifornia, United States
    550.8×
  183. 181LaceyWashington, United States
    550.8×
  184. 181Tri-CitiesWashington, United States
    550.8×
  185. 185La Línea de la ConcepciónAndalusia, Spain
    550.8×
  186. 185AugustaGeorgia, United States
    550.8×
  187. 185BanningCalifornia, United States
    550.8×
  188. 185BendOregon, United States
    550.8×
  189. 189SliemaTas-Sliema, Malta
    550.8×
  190. 189BanbridgeNorthern Ireland, United Kingdom
    550.8×
  191. 189AnsfeldenUpper Austria, Austria
    550.8×
  192. 189ZvolenBanská Bystrica Region, Slovakia
    550.8×
  193. 189Fort St. JohnBritish Columbia, Canada
    550.8×
  194. 194BolzanoTrentino-Alto Adige, Italy
    550.7×
  195. 194SalemOregon, United States
    550.7×
  196. 196NairobiNairobi County, Kenya
    550.7×
  197. 196Vranov nad TopľouPrešov Region, Slovakia
    550.7×
  198. 196MiyakonojōMiyazaki, Japan
    550.7×
  199. 196ChattanoogaTennessee, United States
    550.7×
  200. 196El CentroCalifornia, United States
    550.7×

Top 200 of 1,793 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 29, 2023, smogrank.com/history/2023-10-29 (accessed 2 Oct 2026).

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