SmogRank / History / October 26, 2023

Most polluted cities on October 26, 2023

1,876 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 138.0 µg/m³. Each city's own local calendar day.

← Lahore 138.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for October 26, 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
    2139.2×
  2. 2DelhiDelhi, India
    1967.9×
  3. 3Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1846.9×
  4. 4N'DjamenaN’Djaména, Chad
    1725.7×
  5. 5CairoCairo, Egypt
    1685.3×
  6. 6Dhakalow-cost sensorsDhaka Division, Bangladesh
    1665.2×
  7. 7MumbaiMaharashtra, India
    1624.8×
  8. 8KolkataWest Bengal, India
    1594.5×
  9. 9HyderabadTelangana, India
    1523.8×
  10. 10Islamabadlow-cost sensorsIslamabad, Pakistan
    1363.3×
  11. 11HanoiHanoi, Vietnam
    1343.2×
  12. 12Ulan BatorUlaanbaatar, Mongolia
    1253.0×
  13. 13JeddahMecca Region, Saudi Arabia
    1092.6×
  14. 14Abujalow-cost sensorsFCT, Nigeria
    1012.4×
  15. 15AntananarivoAnalamanga, Madagascar
    992.3×
  16. 16ColomboWestern Province, Sri Lanka
    982.3×
  17. 17Karachilow-cost sensorsSindh, Pakistan
    942.2×
  18. 18Nong KhaemBangkok, Thailand
    942.1×
  19. 19HualpénBiobio, Chile
    932.1×
  20. 20Şabāḩ as SālimMubārak al Kabīr, Kuwait
    932.1×
  21. 21Kampalalow-cost sensorsCentral Region, Uganda
    922.1×
  22. 22DushanbeDushanbe, Tajikistan
    922.1×
  23. 23AthensAttica, Greece
    902.0×
  24. 24AsprópyrgosAttica, Greece
    892.0×
  25. 24SalamancaGuanajuato, Mexico
    892.0×
  26. 26SalorTashkent Region, Uzbekistan
    861.9×
  27. 27PristinaPristina, Kosovo
    861.9×
  28. 28Samut SakhonSamut Sakhon, Thailand
    841.8×
  29. 29PátraWest Greece, Greece
    831.8×
  30. 30PiraeusAttica, Greece
    821.7×
  31. 31BadgerAlaska, United States
    811.7×
  32. 32QuillotaValparaiso, Chile
    811.7×
  33. 33KhalándrionAttica, Greece
    801.6×
  34. 34QuinteroValparaiso, Chile
    791.6×
  35. 35AcharnésAttica, Greece
    791.6×
  36. 36CoronelBiobio, Chile
    781.6×
  37. 37Wan ChaiWan Chai, Hong Kong
    781.6×
  38. 37San CarlosÑuble, Chile
    781.6×
  39. 39TocopillaAntofagasta, Chile
    771.5×
  40. 40BakuBaki, Azerbaijan
    761.5×
  41. 41BangkokBangkok, Thailand
    751.5×
  42. 42BensalemPennsylvania, United States
    741.4×
  43. 43Viña del MarValparaiso, Chile
    741.4×
  44. 44Tin Shui WaiYuen Long, Hong Kong
    741.4×
  45. 45AshgabatAshgabat, Turkmenistan
    731.4×
  46. 45Ang Mo Kio New TownSingapore
    731.4×
  47. 47San Tung Chung HangIslands, Hong Kong
    721.4×
  48. 47Ulu BedokSingapore
    721.4×
  49. 49Tuen MunTuen Mun, Hong Kong
    721.4×
  50. 50Phra PradaengSamut Prakan, Thailand
    721.4×
  51. 50Nakhon PathomNakhon Pathom, Thailand
    721.4×
  52. 52AlessandriaPiedmont, Italy
    711.3×
  53. 53TalcahuanoBiobio, Chile
    711.3×
  54. 54Tanushimarumachi-toyokiFukuoka, Japan
    711.3×
  55. 55Khlong LuangPathum Thani, Thailand
    701.3×
  56. 56Bang Bo DistrictSamut Prakan, Thailand
    691.3×
  57. 57San Pedro de la PazBiobio, Chile
    691.3×
  58. 58TetovoTetovo, North Macedonia
    691.3×
  59. 58OkayamaOkayama, Japan
    691.3×
  60. 60Kan’onjichōKagawa, Japan
    691.2×
  61. 60ConcónValparaiso, Chile
    691.2×
  62. 62KurumeFukuoka, Japan
    691.2×
  63. 62NacimientoBiobio, Chile
    691.2×
  64. 64ShimonosekiYamaguchi, Japan
    681.2×
  65. 65AbasoloGuanajuato, Mexico
    681.2×
  66. 65LancasterPennsylvania, United States
    681.2×
  67. 67Quezon Citylow-cost sensorsNational Capital Region, Philippines
    681.2×
  68. 68ThessaloníkiCentral Macedonia, Greece
    681.2×
  69. 69Nara-shiNara, Japan
    671.2×
  70. 70CelayaGuanajuato, Mexico
    671.2×
  71. 70Casa GrandeArizona, United States
    671.2×
  72. 72Addis AbabaAddis Ababa, Ethiopia
    671.2×
  73. 72BizenOkayama, Japan
    671.2×
  74. 74TamanaKumamoto, Japan
    671.2×
  75. 74NōgataFukuoka, Japan
    671.2×
  76. 74IrapuatoGuanajuato, Mexico
    671.2×
  77. 77YawataKyoto, Japan
    661.2×
  78. 77NewmarketOntario, Canada
    661.2×
  79. 77KotōKumamoto, Japan
    661.2×
  80. 80MiyakonojōMiyazaki, Japan
    661.1×
  81. 80KurashikiOkayama, Japan
    661.1×
  82. 80SarajevoFederation of B&H, Bosnia and Herzegovina
    661.1×
  83. 80DenverColorado, United States
    661.1×
  84. 84Kathmandulow-cost sensorsBagmati Province, Nepal
    661.1×
  85. 84Mong KokYau Tsim Mong District, Hong Kong
    661.1×
  86. 86SkopjeGrad Skopje, North Macedonia
    661.1×
  87. 86Mueang NonthaburiNonthaburi, Thailand
    661.1×
  88. 86TsurusakiOita, Japan
    661.1×
  89. 86ŌmutaFukuoka, Japan
    661.1×
  90. 86NiihamaEhime, Japan
    661.1×
  91. 86CalamaAntofagasta, Chile
    661.1×
  92. 86Coeur d'AleneIdaho, United States
    661.1×
  93. 93DattelnNorth Rhine-Westphalia, Germany
    661.1×
  94. 94East Saint LouisIllinois, United States
    651.1×
  95. 94IzunokuniShizuoka, Japan
    651.1×
  96. 94KirishimaKagoshima, Japan
    651.1×
  97. 97YamagaKumamoto, Japan
    651.1×
  98. 97Kashihara-shiNara, Japan
    651.1×
  99. 97Fort LeeNew Jersey, United States
    651.1×
  100. 97West MifflinPennsylvania, United States
    651.1×
  101. 101Kwai ChungKwai Tsing District, Hong Kong
    651.1×
  102. 101MarmandeNew Aquitaine, France
    651.1×
  103. 101HigashigōSaga, Japan
    651.1×
  104. 104YangonYangon, Myanmar
    651.1×
  105. 104IyoEhime, Japan
    651.1×
  106. 106Tsuen WanTsuen Wan, Hong Kong
    651.1×
  107. 106Tai PoTai Po, Hong Kong
    651.1×
  108. 106TsuyamaOkayama, Japan
    651.1×
  109. 109FanlingNorth District, Hong Kong
    641.1×
  110. 109Hondomachi-hondoKumamoto, Japan
    641.1×
  111. 109KogaFukuoka, Japan
    641.1×
  112. 109OgōriFukuoka, Japan
    641.1×
  113. 113ZentsujichóKagawa, Japan
    641.1×
  114. 114ŌzuKumamoto, Japan
    641.1×
  115. 114Kanzakimachi-kanzakiSaga, Japan
    641.1×
  116. 116Sham Shui PoSham Shui Po District, Hong Kong
    641.1×
  117. 116YanaiYamaguchi, Japan
    641.1×
  118. 116SandachōHyōgo, Japan
    641.1×
  119. 116NabariMie, Japan
    641.1×
  120. 116KumamotoKumamoto, Japan
    641.1×
  121. 116KasaokaOkayama, Japan
    641.1×
  122. 116PortlandMaine, United States
    641.1×
  123. 116UkihaFukuoka, Japan
    641.1×
  124. 124KitakyushuFukuoka, Japan
    631.1×
  125. 124AmagasakiHyōgo, Japan
    631.1×
  126. 126YanagawaFukuoka, Japan
    631.0×
  127. 126La Línea de la ConcepciónAndalusia, Spain
    631.0×
  128. 126TrentonNew Jersey, United States
    631.0×
  129. 126LebanonPennsylvania, United States
    631.0×
  130. 126AraoKumamoto, Japan
    631.0×
  131. 131NakatsuOita, Japan
    631.0×
  132. 131Maebaru-chūōFukuoka, Japan
    631.0×
  133. 133MinatoWakayama, Japan
    631.0×
  134. 134ShidoKagawa, Japan
    631.0×
  135. 135UjiKyoto, Japan
    631.0×
  136. 135KudamatsuYamaguchi, Japan
    631.0×
  137. 135HitaOita, Japan
    631.0×
  138. 135Birminghamlow-cost sensorsEngland, United Kingdom
    631.0×
  139. 135AnchorageAlaska, United States
    631.0×
  140. 135IgaMie, Japan
    631.0×
  141. 135MimaTokushima, Japan
    631.0×
  142. 142UtoKumamoto, Japan
    621.0×
  143. 142OnodaYamaguchi, Japan
    621.0×
  144. 142Queenstown Estatelow-cost sensorsSingapore
    621.0×
  145. 142MineYamaguchi, Japan
    621.0×
  146. 146YukuhashiFukuoka, Japan
    621.0×
  147. 146Uekimachi-mōnoKumamoto, Japan
    621.0×
  148. 146Narutochō-mitsuishiTokushima, Japan
    621.0×
  149. 146Kakogawachō-honmachiHyōgo, Japan
    621.0×
  150. 150UbeYamaguchi, Japan
    621.0×
  151. 150TamanoOkayama, Japan
    621.0×
  152. 150SōjaOkayama, Japan
    621.0×
  153. 150IkedachōTokushima, Japan
    621.0×
  154. 150SusonoShizuoka, Japan
    621.0×
  155. 150HigashihiroshimaHiroshima, Japan
    621.0×
  156. 156Cluj-NapocaCluj County, Romania
    621.0×
  157. 156Samut PrakanSamut Prakan, Thailand
    621.0×
  158. 156SugaiKyoto, Japan
    621.0×
  159. 156YameFukuoka, Japan
    621.0×
  160. 160TosuSaga, Japan
    621.0×
  161. 160Kamojimachō-jōgejimaTokushima, Japan
    621.0×
  162. 160IwakuniYamaguchi, Japan
    621.0×
  163. 160HikariYamaguchi, Japan
    621.0×
  164. 160ElizabethNew Jersey, United States
    621.0×
  165. 165HigashinozoeHyōgo, Japan
    611.0×
  166. 165KōtariKyoto, Japan
    611.0×
  167. 165ReginaSaskatchewan, Canada
    611.0×
  168. 168KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    611.0×
  169. 168Sha TinSha Tin, Hong Kong
    611.0×
  170. 168OnoHyōgo, Japan
    611.0×
  171. 168AsahikawaHokkaido, Japan
    611.0×
  172. 168TatsunoHyōgo, Japan
    611.0×
  173. 173Sau Mau PingKwun Tong District, Hong Kong
    611.0×
  174. 173HonmachiKumamoto, Japan
    611.0×
  175. 173YamaguchiYamaguchi, Japan
    611.0×
  176. 173KashiwaraNara, Japan
    611.0×
  177. 173KandaFukuoka, Japan
    611.0×
  178. 173IwadeWakayama, Japan
    611.0×
  179. 173New BrunswickNew Jersey, United States
    611.0×
  180. 180KashimaSaga, Japan
    611.0×
  181. 180Trois-RivièresQuebec, Canada
    611.0×
  182. 180ShūnanYamaguchi, Japan
    611.0×
  183. 183Imarichō-kōSaga, Japan
    611.0×
  184. 183FukuokaFukuoka, Japan
    611.0×
  185. 183EvergemFlanders, Belgium
    611.0×
  186. 183DetroitMichigan, United States
    611.0×
  187. 183KizugawaKyoto, Japan
    611.0×
  188. 188TakinomiyaKagawa, Japan
    610.9×
  189. 188SendaiKagoshima, Japan
    610.9×
  190. 188KochiKochi, Japan
    610.9×
  191. 188NagaiYamagata, Japan
    610.9×
  192. 188StabroekFlanders, Belgium
    610.9×
  193. 188León de los AldamaGuanajuato, Mexico
    610.9×
  194. 188TorontoOntario, Canada
    610.9×
  195. 195TokushimaTokushima, Japan
    600.9×
  196. 195TakahashiOkayama, Japan
    600.9×
  197. 195NumazuShizuoka, Japan
    600.9×
  198. 195Granite CityIllinois, United States
    600.9×
  199. 199YasugichōShimane, Japan
    600.9×
  200. 199TagawaFukuoka, Japan
    600.9×

Top 200 of 1,876 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 26, 2023, smogrank.com/history/2023-10-26 (accessed 2 Oct 2026).

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