SmogRank / History / November 1, 2023

Most polluted cities on November 1, 2023

1,846 cities ranked by their average PM2.5 over the day; the worst was Ramos Arizpe, Mexico, at 986.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during November 1, 2023. All episodes.

← Ramos Arizpe 986.0 µg/m³ 900 µg/m³15 WHO 24-hour guideline
Every city ranked for November 1, 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. 1Ramos ArizpeCoahuila, Mexico
    500+65.7×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    39618.2×
  3. 3DelhiDelhi, India
    26212.5×
  4. 4BeijingBeijing, China
    24411.3×
  5. 5Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    23110.4×
  6. 6Dhakalow-cost sensorsDhaka Division, Bangladesh
    1877.1×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    1766.1×
  8. 8Karachilow-cost sensorsSindh, Pakistan
    1756.0×
  9. 9HyderabadTelangana, India
    1705.5×
  10. 10KolkataWest Bengal, India
    1695.4×
  11. 11MumbaiMaharashtra, India
    1665.1×
  12. 12Tha BoNong Khai, Thailand
    1584.3×
  13. 13HanoiHanoi, Vietnam
    1574.3×
  14. 14Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1544.0×
  15. 15JakartaJakarta, Indonesia
    1533.9×
  16. 16CoyhaiqueAysén, Chile
    1453.6×
  17. 17CairoCairo, Egypt
    1453.5×
  18. 18AntananarivoAnalamanga, Madagascar
    1413.4×
  19. 19AshgabatAshgabat, Turkmenistan
    1343.3×
  20. 20SalorTashkent Region, Uzbekistan
    1212.9×
  21. 21CalexicoCalifornia, United States
    1192.9×
  22. 22TlaquepaqueJalisco, Mexico
    1182.8×
  23. 23ManamaManama, Bahrain
    1182.8×
  24. 24SalemOregon, United States
    1082.6×
  25. 25PristinaPristina, Kosovo
    1052.5×
  26. 26Ulan BatorUlaanbaatar, Mongolia
    992.3×
  27. 27Kathmandulow-cost sensorsBagmati Province, Nepal
    992.3×
  28. 28GuangzhouGuangdong, China
    982.3×
  29. 29Puerto VarasLos Lagos Region, Chile
    962.2×
  30. 30LewistonIdaho, United States
    952.2×
  31. 31AltamontOregon, United States
    932.1×
  32. 32ReginaSaskatchewan, Canada
    922.1×
  33. 33CranbrookBritish Columbia, Canada
    892.0×
  34. 34TetovoTetovo, North Macedonia
    881.9×
  35. 35Coeur d'AleneIdaho, United States
    881.9×
  36. 35WoodburnOregon, United States
    881.9×
  37. 37YakimaWashington, United States
    881.9×
  38. 38Samut SakhonSamut Sakhon, Thailand
    861.9×
  39. 38ShenyangLiaoning, China
    861.9×
  40. 40HermistonOregon, United States
    851.8×
  41. 41GuadalajaraJalisco, Mexico
    841.8×
  42. 42HualpénBiobio, Chile
    841.8×
  43. 43Abujalow-cost sensorsFCT, Nigeria
    841.8×
  44. 44MexicaliBaja California, Mexico
    831.8×
  45. 45KigaliKigali, Rwanda
    831.8×
  46. 46SpokaneWashington, United States
    831.7×
  47. 47TolucaMéxico, Mexico
    821.7×
  48. 48SunnysideWashington, United States
    821.7×
  49. 49SarajevoFederation of B&H, Bosnia and Herzegovina
    811.7×
  50. 49TocopillaAntofagasta, Chile
    811.7×
  51. 51Spokane ValleyWashington, United States
    811.7×
  52. 52ColomboWestern Province, Sri Lanka
    801.7×
  53. 53ParklandWashington, United States
    801.6×
  54. 53BadgerAlaska, United States
    801.6×
  55. 53CalgaryAlberta, Canada
    801.6×
  56. 56Ulu BedokSingapore
    801.6×
  57. 57MoscowIdaho, United States
    791.6×
  58. 58Tri-CitiesWashington, United States
    791.6×
  59. 59San Francisco TlalcilalcalpanMéxico, Mexico
    781.6×
  60. 60AlbanyOregon, United States
    771.5×
  61. 60TacomaWashington, United States
    771.5×
  62. 62DallasOregon, United States
    771.5×
  63. 63ChikuseiIbaraki, Japan
    761.5×
  64. 64NišCentral Serbia, Serbia
    761.5×
  65. 64Ciudad Benito JuárezNuevo León, Mexico
    761.5×
  66. 66NacimientoBiobio, Chile
    761.5×
  67. 66FresnoCalifornia, United States
    761.5×
  68. 66DuncanBritish Columbia, Canada
    761.5×
  69. 69Addis AbabaAddis Ababa, Ethiopia
    761.5×
  70. 69Ang Mo Kio New TownSingapore
    761.5×
  71. 69RentonWashington, United States
    761.5×
  72. 72OurenseGalicia, Spain
    751.5×
  73. 72San Salvador TizatlalliMéxico, Mexico
    751.5×
  74. 74ModestoCalifornia, United States
    751.5×
  75. 75BakersfieldCalifornia, United States
    751.5×
  76. 76NampaIdaho, United States
    751.5×
  77. 76HelenaMontana, United States
    751.5×
  78. 76TigardOregon, United States
    751.5×
  79. 79TamanaKumamoto, Japan
    741.4×
  80. 80AlessandriaPiedmont, Italy
    741.4×
  81. 81HanfordCalifornia, United States
    741.4×
  82. 81TurlockCalifornia, United States
    741.4×
  83. 81HillsboroOregon, United States
    741.4×
  84. 84Kampalalow-cost sensorsCentral Region, Uganda
    741.4×
  85. 85JeddahMecca Region, Saudi Arabia
    741.4×
  86. 85ChiguayanteBiobio, Chile
    741.4×
  87. 85EllensburgWashington, United States
    741.4×
  88. 88TakanabeMiyazaki, Japan
    741.4×
  89. 89MiyakonojōMiyazaki, Japan
    731.4×
  90. 89MillcreekUtah, United States
    731.4×
  91. 91Moses LakeWashington, United States
    731.4×
  92. 92KazoSaitama, Japan
    731.4×
  93. 92Walla WallaWashington, United States
    731.4×
  94. 94Tanushimarumachi-toyokiFukuoka, Japan
    721.4×
  95. 94SacramentoCalifornia, United States
    721.4×
  96. 96QuillotaValparaiso, Chile
    721.4×
  97. 96CorcoranCalifornia, United States
    721.4×
  98. 96WenatcheeWashington, United States
    721.4×
  99. 99BakuBaki, Azerbaijan
    721.4×
  100. 99AraoKumamoto, Japan
    721.4×
  101. 101CanbyOregon, United States
    721.3×
  102. 102Fort St. JohnBritish Columbia, Canada
    711.3×
  103. 103BangkokBangkok, Thailand
    711.3×
  104. 103CoquimboCoquimbo Region, Chile
    711.3×
  105. 103The DallesOregon, United States
    711.3×
  106. 106QuinteroValparaiso, Chile
    711.3×
  107. 107Mueang NonthaburiNonthaburi, Thailand
    711.3×
  108. 107Columbia CityWashington, United States
    711.3×
  109. 107Prince GeorgeBritish Columbia, Canada
    711.3×
  110. 107VernonBritish Columbia, Canada
    711.3×
  111. 111Tepeji del Río de OcampoHidalgo, Mexico
    711.3×
  112. 111San CarlosÑuble, Chile
    711.3×
  113. 113Nong KhaemBangkok, Thailand
    701.3×
  114. 113YawataKyoto, Japan
    701.3×
  115. 113HanyūSaitama, Japan
    701.3×
  116. 116CoronelBiobio, Chile
    701.3×
  117. 116PendletonOregon, United States
    701.3×
  118. 118Wan ChaiWan Chai, Hong Kong
    701.3×
  119. 119HualquiBiobio, Chile
    701.3×
  120. 120ŌmutaFukuoka, Japan
    701.3×
  121. 121Bang Bo DistrictSamut Prakan, Thailand
    691.3×
  122. 121KurashikiOkayama, Japan
    691.3×
  123. 123SkopjeGrad Skopje, North Macedonia
    691.3×
  124. 123GyōdaSaitama, Japan
    691.3×
  125. 123La SerenaCoquimbo Region, Chile
    691.3×
  126. 123Arden-ArcadeCalifornia, United States
    691.3×
  127. 127KamloopsBritish Columbia, Canada
    691.2×
  128. 128MenumaSaitama, Japan
    691.2×
  129. 128Swift CurrentSaskatchewan, Canada
    691.2×
  130. 130Tuen MunTuen Mun, Hong Kong
    691.2×
  131. 131MiyazakiMiyazaki, Japan
    681.2×
  132. 131SeattleWashington, United States
    681.2×
  133. 133RoseburgOregon, United States
    681.2×
  134. 133AuburnWashington, United States
    681.2×
  135. 133PascoWashington, United States
    681.2×
  136. 136ThessaloníkiCentral Macedonia, Greece
    681.2×
  137. 136Phra PradaengSamut Prakan, Thailand
    681.2×
  138. 136IshinomakiMiyagi, Japan
    681.2×
  139. 136CentraliaWashington, United States
    681.2×
  140. 140OkayamaOkayama, Japan
    671.2×
  141. 141McMinnvilleOregon, United States
    671.2×
  142. 141Port AngelesWashington, United States
    671.2×
  143. 141Misato, SaitamaSaitama, Japan
    671.2×
  144. 144Kan’onjichōKagawa, Japan
    671.2×
  145. 145OyamaTochigi, Japan
    671.2×
  146. 145NichinanMiyazaki, Japan
    671.2×
  147. 145RedmondOregon, United States
    671.2×
  148. 145VancouverBritish Columbia, Canada
    671.2×
  149. 145ShintomiMiyazaki, Japan
    671.2×
  150. 150Yuba CityCalifornia, United States
    661.2×
  151. 150EdmontonAlberta, Canada
    661.2×
  152. 150San Pedro de la PazBiobio, Chile
    661.2×
  153. 153Kakogawachō-honmachiHyōgo, Japan
    661.1×
  154. 153Salmon CreekWashington, United States
    661.1×
  155. 153SaskatoonSaskatchewan, Canada
    661.1×
  156. 156Khlong LuangPathum Thani, Thailand
    661.1×
  157. 156ValdiviaLos Ríos Region, Chile
    661.1×
  158. 156BeavertonOregon, United States
    661.1×
  159. 159Nakhon PathomNakhon Pathom, Thailand
    661.1×
  160. 159TamanoOkayama, Japan
    661.1×
  161. 159ŌtaGunma, Japan
    661.1×
  162. 159KukichūōSaitama, Japan
    661.1×
  163. 159KasukabeSaitama, Japan
    661.1×
  164. 159TalcahuanoBiobio, Chile
    661.1×
  165. 165AsprópyrgosAttica, Greece
    661.1×
  166. 165Samut PrakanSamut Prakan, Thailand
    661.1×
  167. 165KurumeFukuoka, Japan
    661.1×
  168. 165CalamaAntofagasta, Chile
    661.1×
  169. 169TatebayashiGunma, Japan
    651.1×
  170. 169KasaokaOkayama, Japan
    651.1×
  171. 169MagnaUtah, United States
    651.1×
  172. 172AmagasakiHyōgo, Japan
    651.1×
  173. 172BoiseIdaho, United States
    651.1×
  174. 172Salt Lake CityUtah, United States
    651.1×
  175. 172LethbridgeAlberta, Canada
    651.1×
  176. 176KiryūGunma, Japan
    651.1×
  177. 176KirishimaKagoshima, Japan
    651.1×
  178. 178West JordanUtah, United States
    651.1×
  179. 178YachiyoChiba, Japan
    651.1×
  180. 180Nara-shiNara, Japan
    651.1×
  181. 180BenicàssimValencia, Spain
    651.1×
  182. 180WoodlandCalifornia, United States
    651.1×
  183. 180KelownaBritish Columbia, Canada
    651.1×
  184. 180YatomiAichi, Japan
    651.1×
  185. 185SōkaSaitama, Japan
    641.1×
  186. 185NabariMie, Japan
    641.1×
  187. 185HandaAichi, Japan
    641.1×
  188. 185NagaiYamagata, Japan
    641.1×
  189. 185Viña del MarValparaiso, Chile
    641.1×
  190. 185TemucoAraucania, Chile
    641.1×
  191. 185KotōKumamoto, Japan
    641.1×
  192. 192Kashihara-shiNara, Japan
    641.1×
  193. 192CelayaGuanajuato, Mexico
    641.1×
  194. 192MeridianIdaho, United States
    641.1×
  195. 195JōsōIbaraki, Japan
    641.1×
  196. 196KavadarciKavadarci, North Macedonia
    641.1×
  197. 196San JoseCalifornia, United States
    641.1×
  198. 196Grants PassOregon, United States
    641.1×
  199. 199NodaChiba, Japan
    641.1×
  200. 199CholulaPuebla, Mexico
    641.1×

Top 200 of 1,846 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, November 1, 2023, smogrank.com/history/2023-11-01 (accessed 2 Oct 2026).

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