SmogRank / History / October 3, 2023

Most polluted cities on October 3, 2023

1,872 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 637.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during October 3, 2023. All episodes.

← Peshawar 637.0 µg/m³ 600 µg/m³15 WHO 24-hour guideline
Every city ranked for October 3, 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
    500+42.5×
  2. 2N'DjamenaN’Djaména, Chad
    500+42.1×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    1786.3×
  4. 4BurgosCastille and León, Spain
    1554.1×
  5. 5VeniceFlorida, United States
    1483.6×
  6. 6Bonita SpringsFlorida, United States
    1473.6×
  7. 7DelhiDelhi, India
    1403.4×
  8. 8HyderabadTelangana, India
    1393.4×
  9. 9SarasotaFlorida, United States
    1353.3×
  10. 10Coconut CreekFlorida, United States
    1353.3×
  11. 10LakelandFlorida, United States
    1353.3×
  12. 12Palm BayFlorida, United States
    1333.2×
  13. 13Palm CityFlorida, United States
    1283.1×
  14. 14Belle GladeFlorida, United States
    1243.0×
  15. 14Ponte Vedra BeachFlorida, United States
    1243.0×
  16. 16WellingtonFlorida, United States
    1243.0×
  17. 17Islamabadlow-cost sensorsIslamabad, Pakistan
    1222.9×
  18. 18TallahasseeFlorida, United States
    1212.9×
  19. 19SalorTashkent Region, Uzbekistan
    1202.9×
  20. 20Daytona BeachFlorida, United States
    1192.9×
  21. 21Delray BeachFlorida, United States
    1152.8×
  22. 22Puerto VarasLos Lagos Region, Chile
    1142.7×
  23. 23HanoiHanoi, Vietnam
    1122.7×
  24. 23Deerfield BeachFlorida, United States
    1122.7×
  25. 25CairoCairo, Egypt
    1112.6×
  26. 25ValdostaGeorgia, United States
    1112.6×
  27. 27Fort LauderdaleFlorida, United States
    1102.6×
  28. 28TampaFlorida, United States
    1102.6×
  29. 29BeijingBeijing, China
    1092.6×
  30. 29NacimientoBiobio, Chile
    1092.6×
  31. 29Lake MaryFlorida, United States
    1092.6×
  32. 32WestonFlorida, United States
    1082.6×
  33. 33Santa Anita - Los FicusLima region, Peru
    1062.5×
  34. 34DavieFlorida, United States
    1062.5×
  35. 35DushanbeDushanbe, Tajikistan
    1062.5×
  36. 36Puerto MonttLos Lagos Region, Chile
    1042.5×
  37. 37ValricoFlorida, United States
    1022.4×
  38. 38Safety HarborFlorida, United States
    1022.4×
  39. 39GuangzhouGuangdong, China
    1012.4×
  40. 40La UniónLos Ríos Region, Chile
    1002.4×
  41. 41Winter ParkFlorida, United States
    1002.4×
  42. 42OcalaFlorida, United States
    992.3×
  43. 43Fruit CoveFlorida, United States
    992.3×
  44. 44East LakeFlorida, United States
    992.3×
  45. 45Karachilow-cost sensorsSindh, Pakistan
    982.3×
  46. 46Asunciónlow-cost sensorsAsuncion, Paraguay
    972.3×
  47. 47JacksonvilleFlorida, United States
    972.2×
  48. 48Kampalalow-cost sensorsCentral Region, Uganda
    962.2×
  49. 48OsornoLos Lagos Region, Chile
    962.2×
  50. 50JakartaJakarta, Indonesia
    952.2×
  51. 50BamakoBamako, Mali
    952.2×
  52. 52AlbanyGeorgia, United States
    942.2×
  53. 53NairobiNairobi County, Kenya
    942.2×
  54. 54LimaLima Province, Peru
    932.1×
  55. 55PristinaPristina, Kosovo
    922.1×
  56. 55Dhakalow-cost sensorsDhaka Division, Bangladesh
    922.1×
  57. 57MidwayFlorida, United States
    902.0×
  58. 58Ferry PassFlorida, United States
    902.0×
  59. 58GainesvilleFlorida, United States
    902.0×
  60. 60TlaquepaqueJalisco, Mexico
    902.0×
  61. 61CoyhaiqueAysén, Chile
    892.0×
  62. 62MexicaliBaja California, Mexico
    881.9×
  63. 63SarajevoFederation of B&H, Bosnia and Herzegovina
    881.9×
  64. 64RoveretoTrentino-Alto Adige, Italy
    871.9×
  65. 65TrentoTrentino-Alto Adige, Italy
    871.9×
  66. 66Los ÁngelesBiobio, Chile
    861.9×
  67. 67Kuala LumpurKuala Lumpur, Malaysia
    851.8×
  68. 67San Juan del RíoQuerétaro, Mexico
    851.8×
  69. 69ManamaManama, Bahrain
    841.8×
  70. 70CoronelBiobio, Chile
    841.8×
  71. 71TemucoAraucania, Chile
    831.8×
  72. 72SavannahGeorgia, United States
    831.8×
  73. 73Ulu BedokSingapore
    821.7×
  74. 74Şabāḩ as SālimMubārak al Kabīr, Kuwait
    821.7×
  75. 75MiskolcBorsod-Abaúj-Zemplén, Hungary
    821.7×
  76. 75Santa Cruz de TenerifeCanary Islands, Spain
    821.7×
  77. 77MaconGeorgia, United States
    811.7×
  78. 78CauquenesMaule Region, Chile
    801.7×
  79. 79Wan ChaiWan Chai, Hong Kong
    801.6×
  80. 80San Francisco TlalcilalcalpanMéxico, Mexico
    801.6×
  81. 80ZapopanJalisco, Mexico
    801.6×
  82. 82AlessandriaPiedmont, Italy
    791.6×
  83. 83San Salvador TizatlalliMéxico, Mexico
    791.6×
  84. 84TolucaMéxico, Mexico
    791.6×
  85. 85PascagoulaMississippi, United States
    781.6×
  86. 86CallaoCallao, Peru
    781.6×
  87. 87XonacatlánMéxico, Mexico
    781.6×
  88. 87ValdiviaLos Ríos Region, Chile
    781.6×
  89. 87Villa Poeta José Gálvez BarrenecheaLima region, Peru
    781.6×
  90. 90MostÚstí nad Labem Region, Czechia
    771.6×
  91. 91Addis AbabaAddis Ababa, Ethiopia
    771.5×
  92. 92MiamiFlorida, United States
    771.5×
  93. 93La OrotavaCanary Islands, Spain
    771.5×
  94. 93BolzanoTrentino-Alto Adige, Italy
    771.5×
  95. 95CandelariaCanary Islands, Spain
    761.5×
  96. 96ChillánÑuble, Chile
    761.5×
  97. 97Puerto AysénAysén, Chile
    761.5×
  98. 98MumbaiMaharashtra, India
    761.5×
  99. 99DěčínÚstí nad Labem Region, Czechia
    751.5×
  100. 100BensalemPennsylvania, United States
    751.5×
  101. 101San CarlosÑuble, Chile
    751.5×
  102. 101San Francisco De BorjaLima region, Peru
    751.5×
  103. 103SliemaTas-Sliema, Malta
    751.5×
  104. 104GuadalajaraJalisco, Mexico
    741.4×
  105. 105CuricóMaule Region, Chile
    741.4×
  106. 106BirminghamAlabama, United States
    741.4×
  107. 106GulfportMississippi, United States
    741.4×
  108. 108Queenstown Estatelow-cost sensorsSingapore
    741.4×
  109. 109ŻabbarĦaż-Żabbar, Malta
    731.4×
  110. 110RancaguaO'Higgins Region, Chile
    731.4×
  111. 111NaplesCampania, Italy
    731.4×
  112. 112Falconara MarittimaThe Marches, Italy
    731.4×
  113. 112FairhopeAlabama, United States
    731.4×
  114. 114Samut SakhonSamut Sakhon, Thailand
    721.4×
  115. 114Ciudad ApodacaNuevo León, Mexico
    721.4×
  116. 116TocopillaAntofagasta, Chile
    721.4×
  117. 117QuinteroValparaiso, Chile
    721.4×
  118. 117Phenix CityAlabama, United States
    721.4×
  119. 119Hradec KrálovéHradec Králové Region, Czechia
    721.3×
  120. 120Tuen MunTuen Mun, Hong Kong
    711.3×
  121. 120East HamptonVirginia, United States
    711.3×
  122. 122GrazStyria, Austria
    711.3×
  123. 122BrunswickGeorgia, United States
    711.3×
  124. 124Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    711.3×
  125. 124VictoriaCentral and Western, Hong Kong
    711.3×
  126. 124ArrecifeCanary Islands, Spain
    711.3×
  127. 127LuganoTicino, Switzerland
    711.3×
  128. 127ViareggioTuscany, Italy
    711.3×
  129. 127La SpeziaLiguria, Italy
    711.3×
  130. 130TepliceÚstí nad Labem Region, Czechia
    701.3×
  131. 130São PauloSão Paulo, Brazil
    701.3×
  132. 130AricaArica y Parinacota Region, Chile
    701.3×
  133. 133Puente AltoSantiago Metropolitan, Chile
    701.3×
  134. 133Warner RobinsGeorgia, United States
    701.3×
  135. 135QuillotaValparaiso, Chile
    701.3×
  136. 136Ang Mo Kio New TownSingapore
    701.3×
  137. 136San IsidroCanary Islands, Spain
    701.3×
  138. 136MostaIl-Mosta, Malta
    701.3×
  139. 136SantiagoSantiago Metropolitan, Chile
    701.3×
  140. 136AntofagastaAntofagasta, Chile
    701.3×
  141. 141AstanaAstana, Kazakhstan
    701.3×
  142. 141SalamancaGuanajuato, Mexico
    701.3×
  143. 143TalcahuanoBiobio, Chile
    691.3×
  144. 143ConcónValparaiso, Chile
    691.3×
  145. 145Tin Shui WaiYuen Long, Hong Kong
    691.3×
  146. 146Little RockArkansas, United States
    691.3×
  147. 146JacksonMississippi, United States
    691.3×
  148. 148Santa Cruz de la PalmaCanary Islands, Spain
    691.2×
  149. 149FanlingNorth District, Hong Kong
    691.2×
  150. 149CalamaAntofagasta, Chile
    691.2×
  151. 151CuranilahueBiobio, Chile
    691.2×
  152. 152Granadilla de AbonaCanary Islands, Spain
    681.2×
  153. 153ChiguayanteBiobio, Chile
    681.2×
  154. 154AnconaThe Marches, Italy
    681.2×
  155. 154RengoO'Higgins Region, Chile
    681.2×
  156. 154CopiapóAtacama, Chile
    681.2×
  157. 157TetovoTetovo, North Macedonia
    671.2×
  158. 157PesaroThe Marches, Italy
    671.2×
  159. 159BitolaBitola, North Macedonia
    671.2×
  160. 159BellinzonaTicino, Switzerland
    671.2×
  161. 159CuernavacaMorelos, Mexico
    671.2×
  162. 159LotaBiobio, Chile
    671.2×
  163. 159CoquimboCoquimbo Region, Chile
    671.2×
  164. 159ConcepciónBiobio, Chile
    671.2×
  165. 159North CharlestonSouth Carolina, United States
    671.2×
  166. 166Ústí nad LabemÚstí nad Labem Region, Czechia
    671.2×
  167. 166LitvínovÚstí nad Labem Region, Czechia
    671.2×
  168. 166HernandoMississippi, United States
    671.2×
  169. 166San Pedro de la PazBiobio, Chile
    671.2×
  170. 170ToméBiobio, Chile
    671.2×
  171. 170ClevelandOhio, United States
    671.2×
  172. 172PhiladelphiaPennsylvania, United States
    671.2×
  173. 173Tai PoTai Po, Hong Kong
    661.2×
  174. 173Klagenfurt am WörtherseeCarinthia, Austria
    661.2×
  175. 173Alto HospicioTarapacá, Chile
    661.2×
  176. 176TijuanaBaja California, Mexico
    661.2×
  177. 177Neu-UlmBavaria, Germany
    661.1×
  178. 177Collado-VillalbaMadrid, Spain
    661.1×
  179. 177Viña del MarValparaiso, Chile
    661.1×
  180. 180San Tung Chung HangIslands, Hong Kong
    661.1×
  181. 180CholulaPuebla, Mexico
    661.1×
  182. 180ColumbusGeorgia, United States
    661.1×
  183. 183Kathmandulow-cost sensorsBagmati Province, Nepal
    661.1×
  184. 184BakuBaki, Azerbaijan
    661.1×
  185. 184La SerenaCoquimbo Region, Chile
    661.1×
  186. 186ElizabethNew Jersey, United States
    651.1×
  187. 187NurembergBavaria, Germany
    651.1×
  188. 187ColumbusOhio, United States
    651.1×
  189. 189Tsuen WanTsuen Wan, Hong Kong
    651.1×
  190. 189Alcalá de HenaresMadrid, Spain
    651.1×
  191. 191Almatylow-cost sensorsAlmaty, Kazakhstan
    651.1×
  192. 191Mong KokYau Tsim Mong District, Hong Kong
    651.1×
  193. 191Kwai ChungKwai Tsing District, Hong Kong
    651.1×
  194. 191BerounCentral Bohemia, Czechia
    651.1×
  195. 191WarrenOhio, United States
    651.1×
  196. 196LivornoTuscany, Italy
    651.1×
  197. 196GreenvilleNorth Carolina, United States
    651.1×
  198. 196GuelphOntario, Canada
    651.1×
  199. 199Laudio / LlodioBasque Country, Spain
    641.1×
  200. 199TalaganteSantiago Metropolitan, Chile
    641.1×

Top 200 of 1,872 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 3, 2023, smogrank.com/history/2023-10-03 (accessed 2 Oct 2026).

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