SmogRank / History / November 23, 2023

Most polluted cities on November 23, 2023

1,945 cities ranked by their average PM2.5 over the day; the worst was Ramos Arizpe, Mexico, at 384.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during November 23, 2023. All episodes.

← Ramos Arizpe 384.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for November 23, 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+25.6×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    500+24.5×
  3. 3DelhiDelhi, India
    33416.1×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    33016.0×
  5. 5KolkataWest Bengal, India
    28213.8×
  6. 6Dhakalow-cost sensorsDhaka Division, Bangladesh
    26412.6×
  7. 7CairoCairo, Egypt
    2048.6×
  8. 8N'DjamenaN’Djaména, Chad
    1907.4×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    1856.9×
  10. 10Karachilow-cost sensorsSindh, Pakistan
    1705.5×
  11. 11SarajevoFederation of B&H, Bosnia and Herzegovina
    1705.5×
  12. 12Ulan BatorUlaanbaatar, Mongolia
    1665.1×
  13. 13MumbaiMaharashtra, India
    1665.1×
  14. 14Samut SakhonSamut Sakhon, Thailand
    1574.3×
  15. 15GuangzhouGuangdong, China
    1544.0×
  16. 16Abujalow-cost sensorsFCT, Nigeria
    1453.6×
  17. 17JakartaJakarta, Indonesia
    1443.5×
  18. 18Tha BoNong Khai, Thailand
    1413.5×
  19. 19TetovoTetovo, North Macedonia
    1353.3×
  20. 20JeddahMecca Region, Saudi Arabia
    1313.2×
  21. 21Banja LukaSrpska, Bosnia and Herzegovina
    1313.2×
  22. 22Nong KhaemBangkok, Thailand
    1202.9×
  23. 23Kathmandulow-cost sensorsBagmati Province, Nepal
    1192.8×
  24. 24Nakhon PathomNakhon Pathom, Thailand
    1172.8×
  25. 25Mueang NonthaburiNonthaburi, Thailand
    1152.7×
  26. 26San Tung Chung HangIslands, Hong Kong
    1102.6×
  27. 27BangkokBangkok, Thailand
    1072.5×
  28. 28Phra PradaengSamut Prakan, Thailand
    1062.5×
  29. 29NišCentral Serbia, Serbia
    1032.4×
  30. 30Samut PrakanSamut Prakan, Thailand
    1022.4×
  31. 31KavadarciKavadarci, North Macedonia
    992.3×
  32. 32Bang Bo DistrictSamut Prakan, Thailand
    992.3×
  33. 33Khlong LuangPathum Thani, Thailand
    982.3×
  34. 34FlorenceSouth Carolina, United States
    982.3×
  35. 35Tuen MunTuen Mun, Hong Kong
    962.2×
  36. 36MexicaliBaja California, Mexico
    962.2×
  37. 37Tin Shui WaiYuen Long, Hong Kong
    952.2×
  38. 38Puerto VarasLos Lagos Region, Chile
    942.1×
  39. 38VisaliaCalifornia, United States
    942.1×
  40. 40ChikuseiIbaraki, Japan
    932.1×
  41. 41YangonYangon, Myanmar
    932.1×
  42. 42Novi SadVojvodina, Serbia
    922.1×
  43. 42FresnoCalifornia, United States
    922.1×
  44. 44PristinaPristina, Kosovo
    912.1×
  45. 45CapannoriTuscany, Italy
    912.0×
  46. 46Shimo-tsumaIbaraki, Japan
    902.0×
  47. 46ConroeTexas, United States
    902.0×
  48. 48Wan ChaiWan Chai, Hong Kong
    902.0×
  49. 49Ciudad JuárezChihuahua, Mexico
    892.0×
  50. 50BadgerAlaska, United States
    892.0×
  51. 51Ban Khlong PrawetBangkok, Thailand
    881.9×
  52. 52KasaokaOkayama, Japan
    881.9×
  53. 53Ciudad Benito JuárezNuevo León, Mexico
    871.9×
  54. 53BakersfieldCalifornia, United States
    871.9×
  55. 55TsuyamaOkayama, Japan
    861.9×
  56. 56BogotáBogota D.C., Colombia
    851.8×
  57. 57BelgradeCentral Serbia, Serbia
    851.8×
  58. 58Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    851.8×
  59. 59SōjaOkayama, Japan
    841.8×
  60. 60GrazStyria, Austria
    841.8×
  61. 61FanlingNorth District, Hong Kong
    831.8×
  62. 62FukuyamaHiroshima, Japan
    831.7×
  63. 63HyderabadTelangana, India
    821.7×
  64. 63KurashikiOkayama, Japan
    821.7×
  65. 63AlessandriaPiedmont, Italy
    821.7×
  66. 63Puerto MonttLos Lagos Region, Chile
    821.7×
  67. 63TlaquepaqueJalisco, Mexico
    821.7×
  68. 68AsakuchiOkayama, Japan
    811.7×
  69. 69ThessaloníkiCentral Macedonia, Greece
    801.6×
  70. 69NodaChiba, Japan
    801.6×
  71. 71CalexicoCalifornia, United States
    801.6×
  72. 72KigaliKigali, Rwanda
    791.6×
  73. 73QuinteroValparaiso, Chile
    791.6×
  74. 74ChikumaNagano, Japan
    781.6×
  75. 75BitolaBitola, North Macedonia
    781.6×
  76. 75El PasoTexas, United States
    781.6×
  77. 77HandaAichi, Japan
    781.6×
  78. 77HoustonTexas, United States
    781.6×
  79. 79TamanoOkayama, Japan
    771.5×
  80. 79HanfordCalifornia, United States
    771.5×
  81. 81TakahashiOkayama, Japan
    771.5×
  82. 82ParedesPorto, Portugal
    771.5×
  83. 83VelesVeles, North Macedonia
    761.5×
  84. 84TalcahuanoBiobio, Chile
    761.5×
  85. 84MillcreekUtah, United States
    761.5×
  86. 86ManlleuCatalonia, Spain
    761.5×
  87. 87Tai PoTai Po, Hong Kong
    761.5×
  88. 88CorcoranCalifornia, United States
    751.5×
  89. 88YatomiAichi, Japan
    751.5×
  90. 90TatebayashiGunma, Japan
    741.4×
  91. 91TaharaAichi, Japan
    741.4×
  92. 91ClovisCalifornia, United States
    741.4×
  93. 93OurenseGalicia, Spain
    741.4×
  94. 93HualpénBiobio, Chile
    741.4×
  95. 93DublinOhio, United States
    741.4×
  96. 96KōnosuSaitama, Japan
    741.4×
  97. 96KazoSaitama, Japan
    741.4×
  98. 96NagaiYamagata, Japan
    741.4×
  99. 99Quezon Citylow-cost sensorsNational Capital Region, Philippines
    741.4×
  100. 100OkayamaOkayama, Japan
    731.4×
  101. 101Mong KokYau Tsim Mong District, Hong Kong
    731.4×
  102. 102Tsuen WanTsuen Wan, Hong Kong
    731.4×
  103. 102SallanchesAuvergne-Rhône-Alpes, France
    731.4×
  104. 104Kan’onjichōKagawa, Japan
    731.4×
  105. 105Kwai ChungKwai Tsing District, Hong Kong
    731.4×
  106. 106Ciudad ApodacaNuevo León, Mexico
    721.4×
  107. 106PasadenaTexas, United States
    721.4×
  108. 106PortervilleCalifornia, United States
    721.4×
  109. 106BandōIbaraki, Japan
    721.4×
  110. 106NiizaSaitama, Japan
    721.4×
  111. 111YokkaichiMie, Japan
    721.4×
  112. 111CoronelBiobio, Chile
    721.4×
  113. 111Ciudad General EscobedoNuevo León, Mexico
    721.4×
  114. 114AntananarivoAnalamanga, Madagascar
    721.4×
  115. 115Kakogawachō-honmachiHyōgo, Japan
    721.4×
  116. 115ConcónValparaiso, Chile
    721.4×
  117. 117PrešovPrešov Region, Slovakia
    721.3×
  118. 117AgeoSaitama, Japan
    721.3×
  119. 119HanyūSaitama, Japan
    711.3×
  120. 119AsakaSaitama, Japan
    711.3×
  121. 121KasukabeSaitama, Japan
    711.3×
  122. 121TurinPiedmont, Italy
    711.3×
  123. 123ŌmihachimanShiga, Japan
    711.3×
  124. 123West JordanUtah, United States
    711.3×
  125. 123YamanashiYamanashi, Japan
    711.3×
  126. 126IyoEhime, Japan
    711.3×
  127. 126HokotaIbaraki, Japan
    711.3×
  128. 126Viña del MarValparaiso, Chile
    711.3×
  129. 126CoquimboCoquimbo Region, Chile
    711.3×
  130. 130KošiceKošice Region, Slovakia
    711.3×
  131. 130QuillotaValparaiso, Chile
    711.3×
  132. 130MaderaCalifornia, United States
    711.3×
  133. 133Shin’ichiHiroshima, Japan
    711.3×
  134. 133PrievidzaTrenčín Region, Slovakia
    711.3×
  135. 133La UniónLos Ríos Region, Chile
    711.3×
  136. 133MonterreyNuevo León, Mexico
    711.3×
  137. 133JōsōIbaraki, Japan
    711.3×
  138. 138KawaguchiSaitama, Japan
    701.3×
  139. 138HanamakiIwate, Japan
    701.3×
  140. 140Haskovolow-cost sensorsHaskovo, Bulgaria
    701.3×
  141. 140HigashinozoeHyōgo, Japan
    701.3×
  142. 140TemucoAraucania, Chile
    701.3×
  143. 143Sha TinSha Tin, Hong Kong
    701.3×
  144. 143SanoTochigi, Japan
    701.3×
  145. 143CoyhaiqueAysén, Chile
    701.3×
  146. 143Victoria de DurangoDurango, Mexico
    701.3×
  147. 143HigashigōSaga, Japan
    701.3×
  148. 143BizenOkayama, Japan
    701.3×
  149. 149SōkaSaitama, Japan
    701.3×
  150. 149KoshigayaSaitama, Japan
    701.3×
  151. 149IgusaSaitama, Japan
    701.3×
  152. 152Sham Shui PoSham Shui Po District, Hong Kong
    701.3×
  153. 152ShimonosekiYamaguchi, Japan
    701.3×
  154. 152OnomichiHiroshima, Japan
    701.3×
  155. 152MookaTochigi, Japan
    701.3×
  156. 156IaşiIași County, Romania
    691.3×
  157. 156KukichūōSaitama, Japan
    691.3×
  158. 156KiryūGunma, Japan
    691.3×
  159. 156SulphurLouisiana, United States
    691.3×
  160. 156San Pedro de la PazBiobio, Chile
    691.3×
  161. 161YawataKyoto, Japan
    691.3×
  162. 161HekinanAichi, Japan
    691.3×
  163. 161Misato, SaitamaSaitama, Japan
    691.3×
  164. 164DejCluj County, Romania
    691.2×
  165. 164MiskolcBorsod-Abaúj-Zemplén, Hungary
    691.2×
  166. 164NakaIbaraki, Japan
    691.2×
  167. 164AricaArica y Parinacota Region, Chile
    691.2×
  168. 164GarcíaNuevo León, Mexico
    691.2×
  169. 164TōkaiAichi, Japan
    691.2×
  170. 170RuseRuse, Bulgaria
    691.2×
  171. 170VigoGalicia, Spain
    691.2×
  172. 172KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    691.2×
  173. 172Tanushimarumachi-toyokiFukuoka, Japan
    691.2×
  174. 174AmagasakiHyōgo, Japan
    681.2×
  175. 174VictoriaCentral and Western, Hong Kong
    681.2×
  176. 174TocopillaAntofagasta, Chile
    681.2×
  177. 174IrumaSaitama, Japan
    681.2×
  178. 174MatsusakaMie, Japan
    681.2×
  179. 179KusatsuShiga, Japan
    681.2×
  180. 179IshiokaIbaraki, Japan
    681.2×
  181. 179KuwanaMie, Japan
    681.2×
  182. 182MiyakonojōMiyazaki, Japan
    681.2×
  183. 182NacimientoBiobio, Chile
    681.2×
  184. 182Las VegasNevada, United States
    681.2×
  185. 185HannōSaitama, Japan
    681.2×
  186. 185CuricóMaule Region, Chile
    681.2×
  187. 187OyamaTochigi, Japan
    681.2×
  188. 187OnoHyōgo, Japan
    681.2×
  189. 187InabeMie, Japan
    681.2×
  190. 190Kashima-shiIbaraki, Japan
    671.2×
  191. 190MonacoMunicipality of Monaco, Monaco
    671.2×
  192. 190RancaguaO'Higgins Region, Chile
    671.2×
  193. 193Vranov nad TopľouPrešov Region, Slovakia
    671.2×
  194. 193SuzukaMie, Japan
    671.2×
  195. 193KawagoeSaitama, Japan
    671.2×
  196. 193GardanneProvence-Alpes-Côte d'Azur, France
    671.2×
  197. 193JesiThe Marches, Italy
    671.2×
  198. 198Sau Mau PingKwun Tong District, Hong Kong
    671.2×
  199. 198UjiKyoto, Japan
    671.2×
  200. 198Tottori-shiTottori, Japan
    671.2×

Top 200 of 1,945 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

Use this board

SmogRank, most polluted cities, PM2.5, November 23, 2023, smogrank.com/history/2023-11-23 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.