SmogRank / History / October 30, 2023

Most polluted cities on October 30, 2023

1,801 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 298.0 µg/m³. Each city's own local calendar day.

← Lahore 298.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for October 30, 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
    44519.9×
  2. 2N'DjamenaN’Djaména, Chad
    25111.7×
  3. 3DelhiDelhi, India
    22610.1×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    2249.9×
  5. 5BeijingBeijing, China
    2179.5×
  6. 6Dhakalow-cost sensorsDhaka Division, Bangladesh
    1816.6×
  7. 7KolkataWest Bengal, India
    1786.3×
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    1735.8×
  9. 9HyderabadTelangana, India
    1614.7×
  10. 10MumbaiMaharashtra, India
    1554.1×
  11. 11TlaquepaqueJalisco, Mexico
    1533.9×
  12. 12Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1523.8×
  13. 13JakartaJakarta, Indonesia
    1473.6×
  14. 14CairoCairo, Egypt
    1343.3×
  15. 15ShenyangLiaoning, China
    1313.2×
  16. 16AshgabatAshgabat, Turkmenistan
    1243.0×
  17. 17HualpénBiobio, Chile
    1152.8×
  18. 18Karachilow-cost sensorsSindh, Pakistan
    1142.7×
  19. 19PristinaPristina, Kosovo
    1142.7×
  20. 20JeddahMecca Region, Saudi Arabia
    1112.6×
  21. 21Abujalow-cost sensorsFCT, Nigeria
    1052.5×
  22. 22NacimientoBiobio, Chile
    1002.3×
  23. 23SalorTashkent Region, Uzbekistan
    992.3×
  24. 24GuangzhouGuangdong, China
    972.2×
  25. 25Kathmandulow-cost sensorsBagmati Province, Nepal
    962.2×
  26. 26GuadalajaraJalisco, Mexico
    952.2×
  27. 27AntananarivoAnalamanga, Madagascar
    942.2×
  28. 27TalcahuanoBiobio, Chile
    942.2×
  29. 29Wan ChaiWan Chai, Hong Kong
    942.1×
  30. 30TolucaMéxico, Mexico
    932.1×
  31. 31Santa Anita - Los FicusLima region, Peru
    932.1×
  32. 32AlessandriaPiedmont, Italy
    922.1×
  33. 33MonacoMunicipality of Monaco, Monaco
    912.0×
  34. 34MexicaliBaja California, Mexico
    902.0×
  35. 35TemucoAraucania, Chile
    892.0×
  36. 36DushanbeDushanbe, Tajikistan
    892.0×
  37. 37Villa Poeta José Gálvez BarrenecheaLima region, Peru
    881.9×
  38. 38Kampalalow-cost sensorsCentral Region, Uganda
    881.9×
  39. 39San Salvador TizatlalliMéxico, Mexico
    851.8×
  40. 40TocopillaAntofagasta, Chile
    851.8×
  41. 41TetovoTetovo, North Macedonia
    841.8×
  42. 42SarajevoFederation of B&H, Bosnia and Herzegovina
    831.8×
  43. 43CoronelBiobio, Chile
    831.8×
  44. 44Victoria de DurangoDurango, Mexico
    821.7×
  45. 45San Francisco TlalcilalcalpanMéxico, Mexico
    821.7×
  46. 45CholulaPuebla, Mexico
    821.7×
  47. 47CranbrookBritish Columbia, Canada
    801.7×
  48. 48Tin Shui WaiYuen Long, Hong Kong
    781.6×
  49. 49KigaliKigali, Rwanda
    771.5×
  50. 49San Tung Chung HangIslands, Hong Kong
    771.5×
  51. 51Tuen MunTuen Mun, Hong Kong
    771.5×
  52. 52SpokaneWashington, United States
    761.5×
  53. 53ParklandWashington, United States
    751.5×
  54. 54Kwai ChungKwai Tsing District, Hong Kong
    751.5×
  55. 55Mong KokYau Tsim Mong District, Hong Kong
    751.5×
  56. 56Prince GeorgeBritish Columbia, Canada
    741.4×
  57. 57Ang Mo Kio New TownSingapore
    741.4×
  58. 57Ulan BatorUlaanbaatar, Mongolia
    741.4×
  59. 59FanlingNorth District, Hong Kong
    731.4×
  60. 60HanoiHanoi, Vietnam
    731.4×
  61. 61Ulu BedokSingapore
    731.4×
  62. 62SkopjeGrad Skopje, North Macedonia
    731.4×
  63. 63BucharestBucharest, Romania
    721.4×
  64. 64CuernavacaMorelos, Mexico
    721.4×
  65. 65DallasOregon, United States
    721.3×
  66. 66SunnysideWashington, United States
    711.3×
  67. 67Sham Shui PoSham Shui Po District, Hong Kong
    711.3×
  68. 67Sau Mau PingKwun Tong District, Hong Kong
    711.3×
  69. 67AlbanyOregon, United States
    711.3×
  70. 70Tai PoTai Po, Hong Kong
    711.3×
  71. 71CentraliaWashington, United States
    711.3×
  72. 71TerraceBritish Columbia, Canada
    711.3×
  73. 71San Pedro de la PazBiobio, Chile
    711.3×
  74. 74RedmondOregon, United States
    711.3×
  75. 75NišCentral Serbia, Serbia
    701.3×
  76. 75San Francisco De BorjaLima region, Peru
    701.3×
  77. 77Addis AbabaAddis Ababa, Ethiopia
    701.3×
  78. 77Tsuen WanTsuen Wan, Hong Kong
    701.3×
  79. 79YakimaWashington, United States
    701.3×
  80. 80LinzUpper Austria, Austria
    701.3×
  81. 81QuinteroValparaiso, Chile
    691.3×
  82. 82AltamontOregon, United States
    691.3×
  83. 82EugeneOregon, United States
    691.3×
  84. 82Spokane ValleyWashington, United States
    691.3×
  85. 85AthensAttica, Greece
    691.2×
  86. 86KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    691.2×
  87. 87Cluj-NapocaCluj County, Romania
    691.2×
  88. 87SalamancaGuanajuato, Mexico
    691.2×
  89. 89DuncanBritish Columbia, Canada
    681.2×
  90. 90Sha TinSha Tin, Hong Kong
    681.2×
  91. 91RuseRuse, Bulgaria
    681.2×
  92. 91CelayaGuanajuato, Mexico
    681.2×
  93. 93Quezon Citylow-cost sensorsNational Capital Region, Philippines
    681.2×
  94. 93PueblaPuebla, Mexico
    681.2×
  95. 95San CarlosÑuble, Chile
    671.2×
  96. 95RoseburgOregon, United States
    671.2×
  97. 97Walla WallaWashington, United States
    671.2×
  98. 98Coeur d'AleneIdaho, United States
    671.2×
  99. 98HermistonOregon, United States
    671.2×
  100. 100MostÚstí nad Labem Region, Czechia
    661.2×
  101. 100LimaLima Province, Peru
    661.2×
  102. 100ModestoCalifornia, United States
    661.2×
  103. 103HanfordCalifornia, United States
    661.1×
  104. 103HelenaMontana, United States
    661.1×
  105. 105BerounCentral Bohemia, Czechia
    661.1×
  106. 105SalernoCampania, Italy
    661.1×
  107. 105CoquimboCoquimbo Region, Chile
    661.1×
  108. 105Port AlberniBritish Columbia, Canada
    661.1×
  109. 109FairbanksAlaska, United States
    661.1×
  110. 110OurenseGalicia, Spain
    661.1×
  111. 111YecapixtlaMorelos, Mexico
    651.1×
  112. 112BanbridgeNorthern Ireland, United Kingdom
    651.1×
  113. 113QuillotaValparaiso, Chile
    651.1×
  114. 114AsprópyrgosAttica, Greece
    651.1×
  115. 114ThessaloníkiCentral Macedonia, Greece
    651.1×
  116. 116SalemOregon, United States
    641.1×
  117. 117DěčínÚstí nad Labem Region, Czechia
    641.1×
  118. 117CalamaAntofagasta, Chile
    641.1×
  119. 119Almatylow-cost sensorsAlmaty, Kazakhstan
    641.1×
  120. 119TepliceÚstí nad Labem Region, Czechia
    641.1×
  121. 119BohumínMoravian-Silesian Region, Czechia
    641.1×
  122. 119StocktonCalifornia, United States
    641.1×
  123. 123LitvínovÚstí nad Labem Region, Czechia
    631.1×
  124. 124Grants PassOregon, United States
    631.0×
  125. 125RaleighNorth Carolina, United States
    631.0×
  126. 125EllensburgWashington, United States
    631.0×
  127. 127La SerenaCoquimbo Region, Chile
    631.0×
  128. 128Sankt PöltenLower Austria, Austria
    631.0×
  129. 128PendletonOregon, United States
    631.0×
  130. 130BakersfieldCalifornia, United States
    621.0×
  131. 131BakuBaki, Azerbaijan
    621.0×
  132. 131KošiceKošice Region, Slovakia
    621.0×
  133. 131DublinLeinster, Ireland
    621.0×
  134. 131NaplesCampania, Italy
    621.0×
  135. 131ConcónValparaiso, Chile
    621.0×
  136. 136TacomaWashington, United States
    621.0×
  137. 137FresnoCalifornia, United States
    621.0×
  138. 137WenatcheeWashington, United States
    621.0×
  139. 139LewistonIdaho, United States
    611.0×
  140. 139VernonBritish Columbia, Canada
    611.0×
  141. 141TalcaMaule Region, Chile
    611.0×
  142. 142Zacatepec de HidalgoMorelos, Mexico
    611.0×
  143. 143WoodlandCalifornia, United States
    611.0×
  144. 143LangfordBritish Columbia, Canada
    611.0×
  145. 145AnsfeldenUpper Austria, Austria
    610.9×
  146. 145WeidenBavaria, Germany
    610.9×
  147. 147Grande PrairieAlberta, Canada
    600.9×
  148. 148TraunUpper Austria, Austria
    600.9×
  149. 148San Martin Texmelucan de LabastidaPuebla, Mexico
    600.9×
  150. 148CourtenayBritish Columbia, Canada
    600.9×
  151. 151AuburnWashington, United States
    600.9×
  152. 152IlindenIlinden, North Macedonia
    600.9×
  153. 152Queenstown Estatelow-cost sensorsSingapore
    600.9×
  154. 152OlomoucOlomouc Region, Czechia
    600.9×
  155. 155ComptonCalifornia, United States
    600.9×
  156. 155Moses LakeWashington, United States
    600.9×
  157. 157MiyakonojōMiyazaki, Japan
    590.9×
  158. 157Viña del MarValparaiso, Chile
    590.9×
  159. 157CalexicoCalifornia, United States
    590.9×
  160. 160KavadarciKavadarci, North Macedonia
    590.9×
  161. 160TurlockCalifornia, United States
    590.9×
  162. 160Port AngelesWashington, United States
    590.9×
  163. 163AmstettenLower Austria, Austria
    590.9×
  164. 163Dún LaoghaireLeinster, Ireland
    590.9×
  165. 163LongviewWashington, United States
    590.9×
  166. 163RentonWashington, United States
    590.9×
  167. 167IaşiIași County, Romania
    590.9×
  168. 167BoiseIdaho, United States
    590.9×
  169. 169WelsUpper Austria, Austria
    590.9×
  170. 170PiraeusAttica, Greece
    580.9×
  171. 170BitolaBitola, North Macedonia
    580.9×
  172. 170Ústí nad LabemÚstí nad Labem Region, Czechia
    580.9×
  173. 170MantecaCalifornia, United States
    580.9×
  174. 170The DallesOregon, United States
    580.9×
  175. 175AugustaGeorgia, United States
    580.9×
  176. 176NairobiNairobi County, Kenya
    580.9×
  177. 176IwadeWakayama, Japan
    580.9×
  178. 176AlgiersAlgiers, Algeria
    580.9×
  179. 176KlosterneuburgLower Austria, Austria
    580.9×
  180. 176PassauBavaria, Germany
    580.9×
  181. 176Tri-CitiesWashington, United States
    580.9×
  182. 182HarewoodBritish Columbia, Canada
    580.9×
  183. 183ColomboWestern Province, Sri Lanka
    580.8×
  184. 183ZnojmoSouth Moravian, Czechia
    580.8×
  185. 185SendaiKagoshima, Japan
    580.8×
  186. 185WoodlandsSingapore
    580.8×
  187. 187Kaseda-shirakameKagoshima, Japan
    570.8×
  188. 187KasaokaOkayama, Japan
    570.8×
  189. 187VancouverWashington, United States
    570.8×
  190. 187North CowichanBritish Columbia, Canada
    570.8×
  191. 191KelownaBritish Columbia, Canada
    570.8×
  192. 192CorcoranCalifornia, United States
    570.8×
  193. 193PátraWest Greece, Greece
    570.8×
  194. 193Fort-de-FranceMartinique, Martinique
    570.8×
  195. 193HillsboroOregon, United States
    570.8×
  196. 193WoodburnOregon, United States
    570.8×
  197. 193LangleyBritish Columbia, Canada
    570.8×
  198. 198CraiovaDolj, Romania
    570.8×
  199. 198ViennaVienna, Austria
    570.8×
  200. 198BolzanoTrentino-Alto Adige, Italy
    570.8×

Top 200 of 1,801 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 30, 2023, smogrank.com/history/2023-10-30 (accessed 2 Oct 2026).

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