SmogRank / History / October 6, 2023

Most polluted cities on October 6, 2023

1,790 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 102.0 µg/m³. Each city's own local calendar day.

← Lahore 102.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for October 6, 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
    1846.8×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1816.6×
  3. 3Abujalow-cost sensorsFCT, Nigeria
    1675.3×
  4. 4DelhiDelhi, India
    1675.2×
  5. 5N'DjamenaN’Djaména, Chad
    1604.6×
  6. 6HyderabadTelangana, India
    1473.6×
  7. 7JakartaJakarta, Indonesia
    1393.4×
  8. 8BamakoBamako, Mali
    1363.3×
  9. 9AstanaAstana, Kazakhstan
    1363.3×
  10. 10CairoCairo, Egypt
    1172.8×
  11. 11Islamabadlow-cost sensorsIslamabad, Pakistan
    1162.8×
  12. 12Dhakalow-cost sensorsDhaka Division, Bangladesh
    1152.7×
  13. 13KolkataWest Bengal, India
    1092.6×
  14. 14JeddahMecca Region, Saudi Arabia
    1082.5×
  15. 15HanoiHanoi, Vietnam
    1042.5×
  16. 16SarajevoFederation of B&H, Bosnia and Herzegovina
    1032.4×
  17. 17Puerto VarasLos Lagos Region, Chile
    1032.4×
  18. 18Ulu BedokSingapore
    1022.4×
  19. 19Karachilow-cost sensorsSindh, Pakistan
    982.3×
  20. 20ManamaManama, Bahrain
    972.3×
  21. 21Puerto MonttLos Lagos Region, Chile
    972.3×
  22. 22LimaLima Province, Peru
    962.2×
  23. 23DushanbeDushanbe, Tajikistan
    952.2×
  24. 24San Mateo AtencoMéxico, Mexico
    952.2×
  25. 24NacimientoBiobio, Chile
    952.2×
  26. 26MexicaliBaja California, Mexico
    952.2×
  27. 27Ang Mo Kio New TownSingapore
    922.1×
  28. 28TetovoTetovo, North Macedonia
    912.0×
  29. 29Kampalalow-cost sensorsCentral Region, Uganda
    881.9×
  30. 30PristinaPristina, Kosovo
    871.9×
  31. 30La UniónLos Ríos Region, Chile
    871.9×
  32. 32AntananarivoAnalamanga, Madagascar
    871.9×
  33. 32OsornoLos Lagos Region, Chile
    871.9×
  34. 34TemucoAraucania, Chile
    861.9×
  35. 35BakuBaki, Azerbaijan
    861.9×
  36. 35Mollet del VallèsCatalonia, Spain
    861.9×
  37. 37CoyhaiqueAysén, Chile
    851.8×
  38. 38ThessaloníkiCentral Macedonia, Greece
    831.8×
  39. 38MumbaiMaharashtra, India
    831.8×
  40. 40Los ÁngelesBiobio, Chile
    821.7×
  41. 41GuangzhouGuangdong, China
    811.7×
  42. 41ShenyangLiaoning, China
    811.7×
  43. 43Santa Anita - Los FicusLima region, Peru
    811.7×
  44. 44Wan ChaiWan Chai, Hong Kong
    801.7×
  45. 45DurangoBasque Country, Spain
    801.6×
  46. 46Şabāḩ as SālimMubārak al Kabīr, Kuwait
    801.6×
  47. 47Queenstown Estatelow-cost sensorsSingapore
    791.6×
  48. 48SantiagoSantiago Metropolitan, Chile
    781.6×
  49. 49FujinomiyaShizuoka, Japan
    781.6×
  50. 50BitolaBitola, North Macedonia
    781.6×
  51. 50AricaArica y Parinacota Region, Chile
    781.6×
  52. 52ManlleuCatalonia, Spain
    781.6×
  53. 53BilbaoBasque Country, Spain
    771.5×
  54. 54Kuala LumpurKuala Lumpur, Malaysia
    771.5×
  55. 55Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    771.5×
  56. 55CuernavacaMorelos, Mexico
    771.5×
  57. 57LleidaCatalonia, Spain
    761.5×
  58. 58Villa Poeta José Gálvez BarrenecheaLima region, Peru
    761.5×
  59. 59Laudio / LlodioBasque Country, Spain
    761.5×
  60. 59TijuanaBaja California, Mexico
    761.5×
  61. 61BarcelonaCatalonia, Spain
    761.5×
  62. 61San CarlosÑuble, Chile
    761.5×
  63. 63CallaoCallao, Peru
    761.5×
  64. 63TlaquepaqueJalisco, Mexico
    761.5×
  65. 65HuelvaAndalusia, Spain
    751.5×
  66. 66AthensAttica, Greece
    751.5×
  67. 67San Francisco TlalcilalcalpanMéxico, Mexico
    751.5×
  68. 68ValdiviaLos Ríos Region, Chile
    741.4×
  69. 68TalcahuanoBiobio, Chile
    741.4×
  70. 70TurinPiedmont, Italy
    741.4×
  71. 71SalorTashkent Region, Uzbekistan
    741.4×
  72. 71Tuen MunTuen Mun, Hong Kong
    741.4×
  73. 71Gasteiz / VitoriaBasque Country, Spain
    741.4×
  74. 71São PauloSão Paulo, Brazil
    741.4×
  75. 75Puente AltoSantiago Metropolitan, Chile
    741.4×
  76. 75CuranilahueBiobio, Chile
    741.4×
  77. 77CoronelBiobio, Chile
    741.4×
  78. 78ValdemoroMadrid, Spain
    731.4×
  79. 79BelgradeCentral Serbia, Serbia
    731.4×
  80. 79TolucaMéxico, Mexico
    731.4×
  81. 79RancaguaO'Higgins Region, Chile
    731.4×
  82. 82GuadalajaraJalisco, Mexico
    731.4×
  83. 83Almatylow-cost sensorsAlmaty, Kazakhstan
    731.4×
  84. 84Nong KhaemBangkok, Thailand
    721.4×
  85. 84ZapopanJalisco, Mexico
    721.4×
  86. 84San Salvador TizatlalliMéxico, Mexico
    721.4×
  87. 87BirminghamAlabama, United States
    721.3×
  88. 88AsprópyrgosAttica, Greece
    711.3×
  89. 88QuillotaValparaiso, Chile
    711.3×
  90. 90ChillánÑuble, Chile
    711.3×
  91. 91MontemurloTuscany, Italy
    711.3×
  92. 91CauquenesMaule Region, Chile
    711.3×
  93. 93San RoqueAndalusia, Spain
    711.3×
  94. 93CuricóMaule Region, Chile
    711.3×
  95. 95TocopillaAntofagasta, Chile
    711.3×
  96. 96Samut SakhonSamut Sakhon, Thailand
    701.3×
  97. 96NaplesCampania, Italy
    701.3×
  98. 98SevillaAndalusia, Spain
    701.3×
  99. 98CopiapóAtacama, Chile
    701.3×
  100. 100NairobiNairobi County, Kenya
    701.3×
  101. 101Alcalá de HenaresMadrid, Spain
    701.3×
  102. 101SalernoCampania, Italy
    701.3×
  103. 103NagaiYamagata, Japan
    691.3×
  104. 104ArrecifeCanary Islands, Spain
    691.3×
  105. 105San Tung Chung HangIslands, Hong Kong
    691.2×
  106. 105CapannoriTuscany, Italy
    691.2×
  107. 107MóstolesMadrid, Spain
    681.2×
  108. 107Asunciónlow-cost sensorsAsuncion, Paraguay
    681.2×
  109. 109Fort-de-FranceMartinique, Martinique
    681.2×
  110. 110CosladaMadrid, Spain
    681.2×
  111. 110ConcepciónBiobio, Chile
    681.2×
  112. 112CalexicoCalifornia, United States
    681.2×
  113. 112HanfordCalifornia, United States
    681.2×
  114. 114Addis AbabaAddis Ababa, Ethiopia
    671.2×
  115. 115RuseRuse, Bulgaria
    671.2×
  116. 115Las Palmas de Gran CanariaCanary Islands, Spain
    671.2×
  117. 115CoquimboCoquimbo Region, Chile
    671.2×
  118. 115FresnoCalifornia, United States
    671.2×
  119. 119QuinteroValparaiso, Chile
    671.2×
  120. 120SalamancaGuanajuato, Mexico
    671.2×
  121. 121La Línea de la ConcepciónAndalusia, Spain
    661.2×
  122. 122KhalándrionAttica, Greece
    661.1×
  123. 122CórdobaAndalusia, Spain
    661.1×
  124. 124Le LamentinMartinique, Martinique
    661.1×
  125. 125RengoO'Higgins Region, Chile
    661.1×
  126. 126AronaCanary Islands, Spain
    661.1×
  127. 127Santa Cruz de TenerifeCanary Islands, Spain
    651.1×
  128. 127PalenciaCastille and León, Spain
    651.1×
  129. 127GijónAsturias, Spain
    651.1×
  130. 127GrossetoTuscany, Italy
    651.1×
  131. 127Viña del MarValparaiso, Chile
    651.1×
  132. 132Medina del CampoCastille and León, Spain
    651.1×
  133. 133WoodlandsSingapore
    651.1×
  134. 133TalaganteSantiago Metropolitan, Chile
    651.1×
  135. 133AnaheimCalifornia, United States
    651.1×
  136. 136La SpeziaLiguria, Italy
    651.1×
  137. 137Collado-VillalbaMadrid, Spain
    641.1×
  138. 137TrentoTrentino-Alto Adige, Italy
    641.1×
  139. 137PisaTuscany, Italy
    641.1×
  140. 137VisaliaCalifornia, United States
    641.1×
  141. 141Kwai ChungKwai Tsing District, Hong Kong
    641.1×
  142. 141MassaTuscany, Italy
    641.1×
  143. 143AcharnésAttica, Greece
    641.1×
  144. 143Tin Shui WaiYuen Long, Hong Kong
    641.1×
  145. 145GranadaAndalusia, Spain
    641.1×
  146. 145CandelariaCanary Islands, Spain
    641.1×
  147. 145SliemaTas-Sliema, Malta
    641.1×
  148. 145CalamaAntofagasta, Chile
    641.1×
  149. 149Granadilla de AbonaCanary Islands, Spain
    641.1×
  150. 149PoggibonsiTuscany, Italy
    641.1×
  151. 149LivornoTuscany, Italy
    641.1×
  152. 149Puerto AysénAysén, Chile
    641.1×
  153. 149LinaresMaule Region, Chile
    641.1×
  154. 149Warner RobinsGeorgia, United States
    641.1×
  155. 155NišCentral Serbia, Serbia
    631.1×
  156. 156PratoTuscany, Italy
    631.0×
  157. 157PiraeusAttica, Greece
    631.0×
  158. 157PylaíaCentral Macedonia, Greece
    631.0×
  159. 157San IsidroCanary Islands, Spain
    631.0×
  160. 157IzegemFlanders, Belgium
    631.0×
  161. 157TalcaMaule Region, Chile
    631.0×
  162. 162Mong KokYau Tsim Mong District, Hong Kong
    631.0×
  163. 162MiyakonojōMiyazaki, Japan
    631.0×
  164. 162LuganoTicino, Switzerland
    631.0×
  165. 162ToméBiobio, Chile
    631.0×
  166. 162La SerenaCoquimbo Region, Chile
    631.0×
  167. 162ConcónValparaiso, Chile
    631.0×
  168. 168Banja LukaSrpska, Bosnia and Herzegovina
    631.0×
  169. 168Alto HospicioTarapacá, Chile
    631.0×
  170. 170BurrianaValencia, Spain
    631.0×
  171. 170LilleHauts-de-France, France
    631.0×
  172. 170CuencaCastille-La Mancha, Spain
    631.0×
  173. 170ViareggioTuscany, Italy
    631.0×
  174. 170CasertaCampania, Italy
    631.0×
  175. 170ComptonCalifornia, United States
    631.0×
  176. 176HualquiBiobio, Chile
    621.0×
  177. 177MiskolcBorsod-Abaúj-Zemplén, Hungary
    621.0×
  178. 177SkopjeGrad Skopje, North Macedonia
    621.0×
  179. 177FanlingNorth District, Hong Kong
    621.0×
  180. 177Torrejón de ArdozMadrid, Spain
    621.0×
  181. 181TōganeChiba, Japan
    621.0×
  182. 181AlgiersAlgiers, Algeria
    621.0×
  183. 183PátraWest Greece, Greece
    621.0×
  184. 184Sainte-Geneviève-des-BoisÎle-de-France, France
    621.0×
  185. 184ChiguayanteBiobio, Chile
    621.0×
  186. 184KirishimaKagoshima, Japan
    621.0×
  187. 184San Francisco De BorjaLima region, Peru
    621.0×
  188. 188Sau Mau PingKwun Tong District, Hong Kong
    611.0×
  189. 188Tula de AllendeHidalgo, Mexico
    611.0×
  190. 188Victoria de DurangoDurango, Mexico
    611.0×
  191. 191MurciaMurcia, Spain
    611.0×
  192. 191MadridMadrid, Spain
    611.0×
  193. 193KavadarciKavadarci, North Macedonia
    611.0×
  194. 193AvilésAsturias, Spain
    611.0×
  195. 193QuilpuéValparaiso, Chile
    611.0×
  196. 196CartagenaMurcia, Spain
    610.9×
  197. 196OviedoAsturias, Spain
    610.9×
  198. 198AlgeteMadrid, Spain
    600.9×
  199. 199ValladolidCastille and León, Spain
    600.9×
  200. 199MaconGeorgia, United States
    600.9×

Top 200 of 1,790 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 6, 2023, smogrank.com/history/2023-10-06 (accessed 2 Oct 2026).

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