SmogRank / History / October 8, 2023

Most polluted cities on October 8, 2023

1,946 cities ranked by their average PM2.5 over the day; the worst was Zapopan, Mexico, at 739.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during October 8, 2023. All episodes.

← Zapopan 739.0 µg/m³ 700 µg/m³15 WHO 24-hour guideline
Every city ranked for October 8, 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. 1ZapopanJalisco, Mexico
    500+49.3×
  2. 2N'DjamenaN’Djaména, Chad
    29014.3×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    1624.8×
  4. 4BamakoBamako, Mali
    1614.7×
  5. 5Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1594.5×
  6. 6HyderabadTelangana, India
    1554.0×
  7. 7KolkataWest Bengal, India
    1544.0×
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    1533.9×
  9. 9Dhakalow-cost sensorsDhaka Division, Bangladesh
    1493.7×
  10. 10JakartaJakarta, Indonesia
    1433.5×
  11. 11DelhiDelhi, India
    1403.4×
  12. 12Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1393.4×
  13. 13CairoCairo, Egypt
    1343.3×
  14. 14La OrotavaCanary Islands, Spain
    1313.2×
  15. 15Las Palmas de Gran CanariaCanary Islands, Spain
    1313.2×
  16. 16SalorTashkent Region, Uzbekistan
    1313.2×
  17. 17ValdiviaLos Ríos Region, Chile
    1303.1×
  18. 18La UniónLos Ríos Region, Chile
    1243.0×
  19. 19TemucoAraucania, Chile
    1233.0×
  20. 20Santa Cruz de TenerifeCanary Islands, Spain
    1222.9×
  21. 21Kuala LumpurKuala Lumpur, Malaysia
    1142.7×
  22. 22MexicaliBaja California, Mexico
    1102.6×
  23. 23AntananarivoAnalamanga, Madagascar
    1062.5×
  24. 24SarajevoFederation of B&H, Bosnia and Herzegovina
    1062.5×
  25. 25PristinaPristina, Kosovo
    1012.4×
  26. 25DushanbeDushanbe, Tajikistan
    1012.4×
  27. 27AgüimesCanary Islands, Spain
    982.3×
  28. 28Santa Cruz de la PalmaCanary Islands, Spain
    972.2×
  29. 29San IsidroCanary Islands, Spain
    962.2×
  30. 30Granadilla de AbonaCanary Islands, Spain
    962.2×
  31. 31MumbaiMaharashtra, India
    942.2×
  32. 32OsornoLos Lagos Region, Chile
    942.2×
  33. 33NacimientoBiobio, Chile
    942.1×
  34. 34Puerto VarasLos Lagos Region, Chile
    932.1×
  35. 35BeijingBeijing, China
    932.1×
  36. 36MaspalomasCanary Islands, Spain
    932.1×
  37. 37Santa Anita - Los FicusLima region, Peru
    932.1×
  38. 38Karachilow-cost sensorsSindh, Pakistan
    912.0×
  39. 39SantiagoSantiago Metropolitan, Chile
    892.0×
  40. 40ShenyangLiaoning, China
    881.9×
  41. 41TijuanaBaja California, Mexico
    861.9×
  42. 42ArucasCanary Islands, Spain
    861.9×
  43. 43CandelariaCanary Islands, Spain
    861.9×
  44. 44Puerto MonttLos Lagos Region, Chile
    851.8×
  45. 45FunchalMadeira, Portugal
    841.8×
  46. 46JeddahMecca Region, Saudi Arabia
    841.8×
  47. 47ManamaManama, Bahrain
    841.8×
  48. 48Kampalalow-cost sensorsCentral Region, Uganda
    821.7×
  49. 49HualquiBiobio, Chile
    821.7×
  50. 50BakuBaki, Azerbaijan
    821.7×
  51. 51QuillotaValparaiso, Chile
    821.7×
  52. 52CalexicoCalifornia, United States
    821.7×
  53. 53QuinteroValparaiso, Chile
    811.7×
  54. 54Puente AltoSantiago Metropolitan, Chile
    811.7×
  55. 54San Salvador TizatlalliMéxico, Mexico
    811.7×
  56. 56IngenioCanary Islands, Spain
    811.7×
  57. 57SofiaSofia-Capital, Bulgaria
    801.6×
  58. 58TeldeCanary Islands, Spain
    791.6×
  59. 58Mollet del VallèsCatalonia, Spain
    791.6×
  60. 60Addis AbabaAddis Ababa, Ethiopia
    781.6×
  61. 61CoronelBiobio, Chile
    771.5×
  62. 62AlessandriaPiedmont, Italy
    771.5×
  63. 62RedmondOregon, United States
    771.5×
  64. 64LimaLima Province, Peru
    771.5×
  65. 65CopiapóAtacama, Chile
    761.5×
  66. 66Villa Poeta José Gálvez BarrenecheaLima region, Peru
    761.5×
  67. 67TetovoTetovo, North Macedonia
    751.5×
  68. 68Kathmandulow-cost sensorsBagmati Province, Nepal
    751.5×
  69. 69RancaguaO'Higgins Region, Chile
    741.4×
  70. 70AthensAttica, Greece
    741.4×
  71. 71HuelvaAndalusia, Spain
    741.4×
  72. 71RengoO'Higgins Region, Chile
    741.4×
  73. 71CoquimboCoquimbo Region, Chile
    741.4×
  74. 71ChiguayanteBiobio, Chile
    741.4×
  75. 75ToméBiobio, Chile
    731.4×
  76. 76MontemurloTuscany, Italy
    731.4×
  77. 77AsprópyrgosAttica, Greece
    731.4×
  78. 78Falconara MarittimaThe Marches, Italy
    721.4×
  79. 78TalaganteSantiago Metropolitan, Chile
    721.4×
  80. 80CallaoCallao, Peru
    721.4×
  81. 81CuricóMaule Region, Chile
    721.4×
  82. 82Quezon Citylow-cost sensorsNational Capital Region, Philippines
    721.4×
  83. 82ParisÎle-de-France, France
    721.4×
  84. 82PratoTuscany, Italy
    721.4×
  85. 82San CarlosÑuble, Chile
    721.4×
  86. 82Ciudad Benito JuárezNuevo León, Mexico
    721.4×
  87. 87VigoGalicia, Spain
    721.3×
  88. 87Jurupa ValleyCalifornia, United States
    721.3×
  89. 89HanoiHanoi, Vietnam
    711.3×
  90. 90Samut SakhonSamut Sakhon, Thailand
    711.3×
  91. 90BarcelonaCatalonia, Spain
    711.3×
  92. 90TocopillaAntofagasta, Chile
    711.3×
  93. 90La SerenaCoquimbo Region, Chile
    711.3×
  94. 94NaplesCampania, Italy
    711.3×
  95. 94La SpeziaLiguria, Italy
    711.3×
  96. 94CauquenesMaule Region, Chile
    711.3×
  97. 97RuseRuse, Bulgaria
    711.3×
  98. 97TalcahuanoBiobio, Chile
    711.3×
  99. 97Los ÁngelesBiobio, Chile
    711.3×
  100. 97HanfordCalifornia, United States
    711.3×
  101. 101NairobiNairobi County, Kenya
    701.3×
  102. 102Viña del MarValparaiso, Chile
    701.3×
  103. 103ThessaloníkiCentral Macedonia, Greece
    701.3×
  104. 103FlorenceTuscany, Italy
    701.3×
  105. 103CapannoriTuscany, Italy
    701.3×
  106. 106ConcónValparaiso, Chile
    701.3×
  107. 106AntofagastaAntofagasta, Chile
    701.3×
  108. 108CoyhaiqueAysén, Chile
    701.3×
  109. 109TalcaMaule Region, Chile
    691.3×
  110. 110San RoqueAndalusia, Spain
    691.3×
  111. 111ChillánÑuble, Chile
    681.2×
  112. 111AricaArica y Parinacota Region, Chile
    681.2×
  113. 113IlindenIlinden, North Macedonia
    681.2×
  114. 113ConcepciónBiobio, Chile
    681.2×
  115. 115ValdemoroMadrid, Spain
    681.2×
  116. 116SevillaAndalusia, Spain
    681.2×
  117. 117La Línea de la ConcepciónAndalusia, Spain
    671.2×
  118. 117BilbaoBasque Country, Spain
    671.2×
  119. 117PisaTuscany, Italy
    671.2×
  120. 120BitolaBitola, North Macedonia
    671.2×
  121. 121LleidaCatalonia, Spain
    671.2×
  122. 122CuranilahueBiobio, Chile
    661.2×
  123. 123TurinPiedmont, Italy
    661.2×
  124. 123LotaBiobio, Chile
    661.2×
  125. 125SalernoCampania, Italy
    661.1×
  126. 125TurlockCalifornia, United States
    661.1×
  127. 127HarewoodBritish Columbia, Canada
    661.1×
  128. 128FresnoCalifornia, United States
    661.1×
  129. 129CelayaGuanajuato, Mexico
    651.1×
  130. 129San Pedro de la PazBiobio, Chile
    651.1×
  131. 131Ciudad ApodacaNuevo León, Mexico
    651.1×
  132. 132ArrecifeCanary Islands, Spain
    651.1×
  133. 132Civitanova MarcheThe Marches, Italy
    651.1×
  134. 132Puerto AysénAysén, Chile
    651.1×
  135. 132RiversideCalifornia, United States
    651.1×
  136. 136SkopjeGrad Skopje, North Macedonia
    651.1×
  137. 137ManlleuCatalonia, Spain
    651.1×
  138. 137CalamaAntofagasta, Chile
    651.1×
  139. 139SliemaTas-Sliema, Malta
    641.1×
  140. 139MóstolesMadrid, Spain
    641.1×
  141. 139Carsonlow-cost sensorsCalifornia, United States
    641.1×
  142. 139Los AngelesCalifornia, United States
    641.1×
  143. 143GuangzhouGuangdong, China
    641.1×
  144. 144KazoSaitama, Japan
    641.1×
  145. 144QuilpuéValparaiso, Chile
    641.1×
  146. 144ComptonCalifornia, United States
    641.1×
  147. 147BelgradeCentral Serbia, Serbia
    631.1×
  148. 147CardiffWales, United Kingdom
    631.1×
  149. 147Inglewoodlow-cost sensorsCalifornia, United States
    631.1×
  150. 147ModestoCalifornia, United States
    631.1×
  151. 151AmoraSetúbal, Portugal
    631.0×
  152. 152PátraWest Greece, Greece
    631.0×
  153. 152Hawthornelow-cost sensorsCalifornia, United States
    631.0×
  154. 154SalamancaGuanajuato, Mexico
    631.0×
  155. 155NišCentral Serbia, Serbia
    631.0×
  156. 155Gasteiz / VitoriaBasque Country, Spain
    631.0×
  157. 155CuencaCastille-La Mancha, Spain
    631.0×
  158. 155PoggibonsiTuscany, Italy
    631.0×
  159. 155Chula VistaCalifornia, United States
    631.0×
  160. 160ViareggioTuscany, Italy
    621.0×
  161. 160AnconaThe Marches, Italy
    621.0×
  162. 162AnaheimCalifornia, United States
    621.0×
  163. 163AcharnésAttica, Greece
    621.0×
  164. 163LisbonLisbon, Portugal
    621.0×
  165. 163LivornoTuscany, Italy
    621.0×
  166. 163MaderaCalifornia, United States
    621.0×
  167. 167CacémLisbon, Portugal
    621.0×
  168. 167San Francisco TlalcilalcalpanMéxico, Mexico
    621.0×
  169. 169IzegemFlanders, Belgium
    611.0×
  170. 169CorcoranCalifornia, United States
    611.0×
  171. 171San Mateo AtencoMéxico, Mexico
    611.0×
  172. 171FontanaCalifornia, United States
    611.0×
  173. 173BailénAndalusia, Spain
    611.0×
  174. 173ŻabbarĦaż-Żabbar, Malta
    611.0×
  175. 175Torrancelow-cost sensorsCalifornia, United States
    611.0×
  176. 176KhalándrionAttica, Greece
    611.0×
  177. 176BurbankCalifornia, United States
    611.0×
  178. 178MuroranHokkaido, Japan
    610.9×
  179. 178Manchesterlow-cost sensorsEngland, United Kingdom
    610.9×
  180. 178Laudio / LlodioBasque Country, Spain
    610.9×
  181. 178JesiThe Marches, Italy
    610.9×
  182. 178Santa CatarinaNuevo León, Mexico
    610.9×
  183. 183ThionvilleGrand Est, France
    600.9×
  184. 183SarcellesÎle-de-France, France
    600.9×
  185. 183A CoruñaGalicia, Spain
    600.9×
  186. 183DurangoBasque Country, Spain
    600.9×
  187. 183Santa Monicalow-cost sensorsCalifornia, United States
    600.9×
  188. 188MurciaMurcia, Spain
    600.9×
  189. 188TolucaMéxico, Mexico
    600.9×
  190. 190MostaIl-Mosta, Malta
    600.9×
  191. 190Fos-sur-MerProvence-Alpes-Côte d'Azur, France
    600.9×
  192. 190Alcalá de HenaresMadrid, Spain
    600.9×
  193. 190PesaroThe Marches, Italy
    600.9×
  194. 194MüllheimBaden-Wurttemberg, Germany
    600.9×
  195. 194NarónGalicia, Spain
    600.9×
  196. 196TsuyamaOkayama, Japan
    600.9×
  197. 196NottinghamEngland, United Kingdom
    600.9×
  198. 198KavadarciKavadarci, North Macedonia
    590.9×
  199. 198KukichūōSaitama, Japan
    590.9×
  200. 198DaxNew Aquitaine, France
    590.9×

Top 200 of 1,946 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 8, 2023, smogrank.com/history/2023-10-08 (accessed 2 Oct 2026).

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