SmogRank / History / January 24, 2023

Most polluted cities on January 24, 2023

1,155 cities ranked by their average PM2.5 over the day; the worst was Gómez Palacio, Mexico, at 985.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 24, 2023. All episodes.

← Gómez Palacio 985.0 µg/m³ 900 µg/m³15 WHO 24-hour guideline
Every city ranked for January 24, 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. 1Gómez PalacioDurango, Mexico
    500+65.7×
  2. 2DushanbeDushanbe, Tajikistan
    29514.7×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    29314.5×
  4. 4SalorTashkent Region, Uzbekistan
    23710.8×
  5. 5Hacienda Santa FeJalisco, Mexico
    2199.6×
  6. 6Lahorelow-cost sensorsPunjab, Pakistan
    2139.2×
  7. 7BamakoBamako, Mali
    1856.9×
  8. 8Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1846.8×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    1836.8×
  10. 10Kathmandulow-cost sensorsBagmati Province, Nepal
    1816.5×
  11. 11Abujalow-cost sensorsFCT, Nigeria
    1786.3×
  12. 12DelhiDelhi, India
    1755.9×
  13. 13N'DjamenaN’Djaména, Chad
    1735.8×
  14. 14BaghdadBaghdad, Iraq
    1705.5×
  15. 15Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1685.3×
  16. 16RatchaburiRatchaburi, Thailand
    1675.2×
  17. 17Khlong Sam WaBangkok, Thailand
    1634.9×
  18. 18MumbaiMaharashtra, India
    1624.7×
  19. 19Almatylow-cost sensorsAlmaty, Kazakhstan
    1614.6×
  20. 20KigaliKigali, Rwanda
    1604.6×
  21. 20AlexandriaAlexandria, Egypt
    1604.6×
  22. 22Banja LukaSrpska, Bosnia and Herzegovina
    1594.5×
  23. 23Nong KhaemBangkok, Thailand
    1584.4×
  24. 24Bueng KumBangkok, Thailand
    1574.3×
  25. 25Khan Na YaoBangkok, Thailand
    1574.2×
  26. 26Suphan BuriSuphan Buri, Thailand
    1564.2×
  27. 26Nakhon PathomNakhon Pathom, Thailand
    1564.2×
  28. 28Lak SiBangkok, Thailand
    1564.1×
  29. 29PhayaoPhayao, Thailand
    1564.1×
  30. 30Samut SakhonSamut Sakhon, Thailand
    1554.1×
  31. 31Mueang NonthaburiNonthaburi, Thailand
    1554.1×
  32. 32SukhothaiSukhothai, Thailand
    1544.0×
  33. 33Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1544.0×
  34. 34Bang NaBangkok, Thailand
    1533.9×
  35. 35Sai MaiBangkok, Thailand
    1533.9×
  36. 36Lat KrabangBangkok, Thailand
    1533.9×
  37. 37Bang KapiBangkok, Thailand
    1533.8×
  38. 38Bang Khun ThianBangkok, Thailand
    1523.8×
  39. 39YangonYangon, Myanmar
    1523.8×
  40. 40RayongRayong, Thailand
    1523.8×
  41. 41SallanchesAuvergne-Rhône-Alpes, France
    1523.8×
  42. 42Khlong LuangPathum Thani, Thailand
    1523.8×
  43. 43Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1513.7×
  44. 44Saphan SungBangkok, Thailand
    1513.7×
  45. 45BangkokBangkok, Thailand
    1473.6×
  46. 46LampangLampang, Thailand
    1453.6×
  47. 47Ban Khlong PrawetBangkok, Thailand
    1443.5×
  48. 48Mae SotTak, Thailand
    1443.5×
  49. 49Lop BuriLopburi, Thailand
    1433.5×
  50. 50Ban Samae DamBangkok, Thailand
    1423.5×
  51. 51Nakhon SawanNakhon Sawan, Thailand
    1423.5×
  52. 52Nong ChokBangkok, Thailand
    1403.4×
  53. 53LamphunLamphun, Thailand
    1383.4×
  54. 54NanNan, Thailand
    1383.4×
  55. 55AranyaprathetSa Kaeo, Thailand
    1373.3×
  56. 56Hua HinPrachuap Khiri Khan, Thailand
    1343.3×
  57. 57PhichitPhichit, Thailand
    1313.2×
  58. 58Ban ChangRayong, Thailand
    1313.2×
  59. 59SaraburiSaraburi, Thailand
    1243.0×
  60. 59Ban Talat BuengChon Buri, Thailand
    1243.0×
  61. 61ŁaskŁódź Voivodeship, Poland
    1243.0×
  62. 62PhetchabunPhetchabun, Thailand
    1222.9×
  63. 63Phra PradaengSamut Prakan, Thailand
    1192.9×
  64. 64Nakhon RatchasimaNakhon Ratchasima, Thailand
    1192.8×
  65. 65Kamphaeng PhetKamphaeng Phet, Thailand
    1162.8×
  66. 66Si Maha PhotPrachin Buri, Thailand
    1142.7×
  67. 67HyderabadTelangana, India
    1112.6×
  68. 67San Francisco TlalcilalcalpanMéxico, Mexico
    1112.6×
  69. 69UttaraditUttaradit, Thailand
    1102.6×
  70. 70Nong Bua LamphuNong Bua Lamphu, Thailand
    1092.6×
  71. 71ŻyrardówMazovia, Poland
    1092.6×
  72. 72HanoiHanoi, Vietnam
    1062.5×
  73. 73TocopillaAntofagasta, Chile
    1052.5×
  74. 74WrocławLower Silesia, Poland
    1032.4×
  75. 75AmmanAmman, Jordan
    1022.4×
  76. 75Chiang MaiChiang Mai, Thailand
    1022.4×
  77. 75RužomberokŽilina Region, Slovakia
    1022.4×
  78. 78SzamotułyGreater Poland, Poland
    1012.4×
  79. 79Chiang RaiChiang Rai, Thailand
    1002.4×
  80. 80Buri RamBuriram, Thailand
    992.3×
  81. 80Amnat CharoenAmnat Charoen, Thailand
    992.3×
  82. 80PakxanBolikhamsai, Laos
    992.3×
  83. 83BitolaBitola, North Macedonia
    992.3×
  84. 84TopekaKansas, United States
    982.3×
  85. 85MeylanAuvergne-Rhône-Alpes, France
    982.3×
  86. 86MiędzyrzeczLubusz, Poland
    972.2×
  87. 87CholulaPuebla, Mexico
    952.2×
  88. 88DrammenBuskerud, Norway
    942.2×
  89. 89NottinghamEngland, United Kingdom
    942.1×
  90. 90RadomMazovia, Poland
    942.1×
  91. 91ChesterfieldEngland, United Kingdom
    932.1×
  92. 92KalasinKalasin, Thailand
    922.1×
  93. 92MexicaliBaja California, Mexico
    922.1×
  94. 94KanchanaburiKanchanaburi, Thailand
    922.1×
  95. 95LeedsEngland, United Kingdom
    922.1×
  96. 95DouaiHauts-de-France, France
    922.1×
  97. 97Wan ChaiWan Chai, Hong Kong
    912.1×
  98. 98Accralow-cost sensorsGreater Accra, Ghana
    912.0×
  99. 99Roi EtRoi Et, Thailand
    912.0×
  100. 99Stoke-on-TrentEngland, United Kingdom
    912.0×
  101. 101RacibórzSilesia, Poland
    912.0×
  102. 102HamarInnlandet, Norway
    902.0×
  103. 103Tin Shui WaiYuen Long, Hong Kong
    902.0×
  104. 103GrenobleAuvergne-Rhône-Alpes, France
    902.0×
  105. 103TolucaMéxico, Mexico
    902.0×
  106. 106Le HavreNormandy, France
    902.0×
  107. 107OtwockMazovia, Poland
    892.0×
  108. 107KutnoŁódź Voivodeship, Poland
    892.0×
  109. 109MukdahanMukdahan, Thailand
    892.0×
  110. 110Mae SaiChiang Rai, Thailand
    892.0×
  111. 111MinatitlánVeracruz, Mexico
    892.0×
  112. 111TijuanaBaja California, Mexico
    892.0×
  113. 111CelayaGuanajuato, Mexico
    892.0×
  114. 114WiganEngland, United Kingdom
    881.9×
  115. 115KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    881.9×
  116. 115San CarlosÑuble, Chile
    881.9×
  117. 117ChaiyaphumChaiyaphum, Thailand
    881.9×
  118. 118XonacatlánMéxico, Mexico
    881.9×
  119. 119Udon ThaniUdon Thani, Thailand
    881.9×
  120. 119Tsuen WanTsuen Wan, Hong Kong
    881.9×
  121. 121WarsawMazovia, Poland
    871.9×
  122. 121Manchesterlow-cost sensorsEngland, United Kingdom
    871.9×
  123. 123Sakon NakhonSakon Nakhon, Thailand
    871.9×
  124. 123GuangzhouGuangdong, China
    871.9×
  125. 125RouenNormandy, France
    871.9×
  126. 126CaenNormandy, France
    861.9×
  127. 127LoeiLoei, Thailand
    861.9×
  128. 127FanlingNorth District, Hong Kong
    861.9×
  129. 129TlaquepaqueJalisco, Mexico
    861.9×
  130. 130Yerevanlow-cost sensorsYerevan, Armenia
    851.8×
  131. 131PristinaPristina, Kosovo
    851.8×
  132. 131LiverpoolEngland, United Kingdom
    851.8×
  133. 131Villa Poeta José Gálvez BarrenecheaLima region, Peru
    851.8×
  134. 134LisieuxNormandy, France
    851.8×
  135. 134ChambéryAuvergne-Rhône-Alpes, France
    851.8×
  136. 136SheffieldEngland, United Kingdom
    851.8×
  137. 136Birminghamlow-cost sensorsEngland, United Kingdom
    851.8×
  138. 138HanfordCalifornia, United States
    841.8×
  139. 139LilleHauts-de-France, France
    841.8×
  140. 140Si Sa KetSi Sa Ket, Thailand
    841.8×
  141. 141ShanghaiShanghai, China
    841.8×
  142. 142PułtuskMazovia, Poland
    831.8×
  143. 142SpekeEngland, United Kingdom
    831.8×
  144. 142ValenciennesHauts-de-France, France
    831.8×
  145. 145San Salvador TizatlalliMéxico, Mexico
    831.8×
  146. 146Saint JosephMissouri, United States
    831.8×
  147. 146FresnoCalifornia, United States
    831.8×
  148. 148WarringtonEngland, United Kingdom
    831.7×
  149. 149San Tung Chung HangIslands, Hong Kong
    831.7×
  150. 150WawerMazovia, Poland
    821.7×
  151. 150PoznańGreater Poland, Poland
    821.7×
  152. 152Kwai ChungKwai Tsing District, Hong Kong
    821.7×
  153. 152ManosqueProvence-Alpes-Côte d'Azur, France
    821.7×
  154. 152ToruńKujawsko-Pomorskie, Poland
    821.7×
  155. 155RennesBrittany, France
    821.7×
  156. 156VannesBrittany, France
    821.7×
  157. 156IrapuatoGuanajuato, Mexico
    821.7×
  158. 158Mong KokYau Tsim Mong District, Hong Kong
    821.7×
  159. 158RoubaixHauts-de-France, France
    821.7×
  160. 160EsztergomKomárom-Esztergom, Hungary
    811.7×
  161. 160SacramentoCalifornia, United States
    811.7×
  162. 162TakTak, Thailand
    811.7×
  163. 162VictoriaCentral and Western, Hong Kong
    811.7×
  164. 162IrlamEngland, United Kingdom
    811.7×
  165. 162LimaLima Province, Peru
    811.7×
  166. 166RancaguaO'Higgins Region, Chile
    801.7×
  167. 166Kansas CityKansas, United States
    801.7×
  168. 166IndependenceMissouri, United States
    801.7×
  169. 169ŽilinaŽilina Region, Slovakia
    801.6×
  170. 169WłocławekKujawsko-Pomorskie, Poland
    801.6×
  171. 171PátraWest Greece, Greece
    801.6×
  172. 171TratTrat, Thailand
    801.6×
  173. 171Ciudad Benito JuárezNuevo León, Mexico
    801.6×
  174. 174ChisinauChișinău Municipality, Moldova
    801.6×
  175. 174Surat ThaniSurat Thani, Thailand
    801.6×
  176. 176SantiagoSantiago Metropolitan, Chile
    801.6×
  177. 177Kansas CityMissouri, United States
    791.6×
  178. 178Mladá BoleslavCentral Bohemia, Czechia
    791.6×
  179. 178LęborkPomerania, Poland
    791.6×
  180. 180AlbertvilleAuvergne-Rhône-Alpes, France
    791.6×
  181. 181Ubon RatchathaniUbon Ratchathani, Thailand
    781.6×
  182. 181Sau Mau PingKwun Tong District, Hong Kong
    781.6×
  183. 181SouthamptonEngland, United Kingdom
    781.6×
  184. 181SzczecinWest Pomerania, Poland
    781.6×
  185. 181ThorntonColorado, United States
    781.6×
  186. 186ToulouseOccitanie, France
    781.6×
  187. 186San Andrés TuxtlaVeracruz, Mexico
    781.6×
  188. 188Tai PoTai Po, Hong Kong
    781.6×
  189. 189Sha TinSha Tin, Hong Kong
    771.6×
  190. 189AnnemasseAuvergne-Rhône-Alpes, France
    771.6×
  191. 189CoatzacoalcosVeracruz, Mexico
    771.6×
  192. 192Bourg-en-BresseAuvergne-Rhône-Alpes, France
    771.5×
  193. 192KłodzkoLower Silesia, Poland
    771.5×
  194. 192AricaArica y Parinacota Region, Chile
    771.5×
  195. 195Cluj-NapocaCluj County, Romania
    771.5×
  196. 195BeauvaisHauts-de-France, France
    771.5×
  197. 197Spišská Nová VesKošice Region, Slovakia
    771.5×
  198. 197PhuketPhuket, Thailand
    771.5×
  199. 197Royal Leamington SpaEngland, United Kingdom
    771.5×
  200. 197ÉvreuxNormandy, France
    771.5×

Top 200 of 1,155 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, January 24, 2023, smogrank.com/history/2023-01-24 (accessed 2 Oct 2026).

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