SmogRank / History / January 26, 2023

Most polluted cities on January 26, 2023

1,232 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 26, 2023. All episodes.

← Gómez Palacio 985.0 µg/m³ 900 µg/m³15 WHO 24-hour guideline
Every city ranked for January 26, 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. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    500+22.3×
  3. 3DushanbeDushanbe, Tajikistan
    28814.2×
  4. 4SalorTashkent Region, Uzbekistan
    25011.7×
  5. 5DelhiDelhi, India
    23210.5×
  6. 6N'DjamenaN’Djaména, Chad
    2229.8×
  7. 7Almatylow-cost sensorsAlmaty, Kazakhstan
    2018.4×
  8. 8MumbaiMaharashtra, India
    1927.6×
  9. 9Abujalow-cost sensorsFCT, Nigeria
    1867.0×
  10. 10Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1826.6×
  11. 11Islamabadlow-cost sensorsIslamabad, Pakistan
    1826.6×
  12. 12Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1786.3×
  13. 13Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1786.2×
  14. 14Kathmandulow-cost sensorsBagmati Province, Nepal
    1725.7×
  15. 15BaghdadBaghdad, Iraq
    1685.4×
  16. 16KigaliKigali, Rwanda
    1665.1×
  17. 17HanoiHanoi, Vietnam
    1655.0×
  18. 18Tha BoNong Khai, Thailand
    1644.9×
  19. 19Yerevanlow-cost sensorsYerevan, Armenia
    1634.8×
  20. 20Kampalalow-cost sensorsCentral Region, Uganda
    1634.8×
  21. 21YangonYangon, Myanmar
    1554.1×
  22. 22AugustówPodlasie, Poland
    1533.9×
  23. 23LampangLampang, Thailand
    1523.8×
  24. 24SukhothaiSukhothai, Thailand
    1523.8×
  25. 25LamphunLamphun, Thailand
    1493.7×
  26. 26HyderabadTelangana, India
    1473.6×
  27. 27NanNan, Thailand
    1443.5×
  28. 28Nong KhaemBangkok, Thailand
    1393.4×
  29. 28Khlong Sam WaBangkok, Thailand
    1393.4×
  30. 30SuwałkiPodlasie, Poland
    1393.4×
  31. 30GuadalajaraJalisco, Mexico
    1393.4×
  32. 32GrajewoPodlasie, Poland
    1393.4×
  33. 33Samut SakhonSamut Sakhon, Thailand
    1383.4×
  34. 34RatchaburiRatchaburi, Thailand
    1383.4×
  35. 35San Francisco TlalcilalcalpanMéxico, Mexico
    1333.2×
  36. 36Addis AbabaAddis Ababa, Ethiopia
    1323.2×
  37. 37Jastrzębie ZdrójSilesia, Poland
    1313.2×
  38. 38Bielsko-BialaSilesia, Poland
    1303.2×
  39. 39Bang Khun ThianBangkok, Thailand
    1293.1×
  40. 39Khan Na YaoBangkok, Thailand
    1293.1×
  41. 41BamakoBamako, Mali
    1263.0×
  42. 42Nakhon RatchasimaNakhon Ratchasima, Thailand
    1253.0×
  43. 43Mae SotTak, Thailand
    1243.0×
  44. 44Karachilow-cost sensorsSindh, Pakistan
    1243.0×
  45. 44Lak SiBangkok, Thailand
    1243.0×
  46. 46Nakhon PathomNakhon Pathom, Thailand
    1233.0×
  47. 47UttaraditUttaradit, Thailand
    1222.9×
  48. 47Lat KrabangBangkok, Thailand
    1222.9×
  49. 49Ban Samae DamBangkok, Thailand
    1222.9×
  50. 50ShanghaiShanghai, China
    1202.9×
  51. 51Chiang MaiChiang Mai, Thailand
    1192.8×
  52. 52Nong Bua LamphuNong Bua Lamphu, Thailand
    1182.8×
  53. 52Bang NaBangkok, Thailand
    1182.8×
  54. 54PhetchabunPhetchabun, Thailand
    1172.8×
  55. 55Mueang NonthaburiNonthaburi, Thailand
    1172.8×
  56. 56Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1162.8×
  57. 57KętrzynWarmia-Masuria, Poland
    1152.8×
  58. 58PhichitPhichit, Thailand
    1142.7×
  59. 58Bueng KumBangkok, Thailand
    1142.7×
  60. 60BangkokBangkok, Thailand
    1142.7×
  61. 61EłkWarmia-Masuria, Poland
    1132.7×
  62. 62Bang KapiBangkok, Thailand
    1122.7×
  63. 63Nong ChokBangkok, Thailand
    1122.7×
  64. 63Sai MaiBangkok, Thailand
    1122.7×
  65. 65Khlong LuangPathum Thani, Thailand
    1122.7×
  66. 66Chiang RaiChiang Rai, Thailand
    1112.6×
  67. 67Suphan BuriSuphan Buri, Thailand
    1102.6×
  68. 67Saphan SungBangkok, Thailand
    1102.6×
  69. 69Buri RamBuriram, Thailand
    1092.6×
  70. 70ToruńKujawsko-Pomorskie, Poland
    1092.6×
  71. 71PułtuskMazovia, Poland
    1092.6×
  72. 72AlexandriaAlexandria, Egypt
    1082.6×
  73. 73Mae SaiChiang Rai, Thailand
    1072.5×
  74. 73PakxanBolikhamsai, Laos
    1072.5×
  75. 73San Mateo AtencoMéxico, Mexico
    1072.5×
  76. 76ZapopanJalisco, Mexico
    1072.5×
  77. 77MukdahanMukdahan, Thailand
    1062.5×
  78. 78Nakhon SawanNakhon Sawan, Thailand
    1052.5×
  79. 79GuangzhouGuangdong, China
    1052.5×
  80. 80ŻyrardówMazovia, Poland
    1042.5×
  81. 81AmmanAmman, Jordan
    1022.4×
  82. 81RacibórzSilesia, Poland
    1022.4×
  83. 83RzeszówSubcarpathia, Poland
    1012.4×
  84. 83BitolaBitola, North Macedonia
    1012.4×
  85. 85ChaiyaphumChaiyaphum, Thailand
    1012.4×
  86. 86KutnoŁódź Voivodeship, Poland
    1002.4×
  87. 87Kamphaeng PhetKamphaeng Phet, Thailand
    1002.4×
  88. 88WrocławLower Silesia, Poland
    1002.3×
  89. 89PłockMazovia, Poland
    992.3×
  90. 89León de los AldamaGuanajuato, Mexico
    992.3×
  91. 91Bang Bo DistrictSamut Prakan, Thailand
    992.3×
  92. 92IrapuatoGuanajuato, Mexico
    992.3×
  93. 93Zacatepec de HidalgoMorelos, Mexico
    982.3×
  94. 94KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    972.3×
  95. 95BiałystokPodlasie, Poland
    972.3×
  96. 96ColomboWestern Province, Sri Lanka
    972.2×
  97. 96Udon ThaniUdon Thani, Thailand
    972.2×
  98. 98OtwockMazovia, Poland
    962.2×
  99. 99Si Maha PhotPrachin Buri, Thailand
    962.2×
  100. 100SaraburiSaraburi, Thailand
    962.2×
  101. 100Lop BuriLopburi, Thailand
    962.2×
  102. 102Hua HinPrachuap Khiri Khan, Thailand
    952.2×
  103. 102Sakon NakhonSakon Nakhon, Thailand
    952.2×
  104. 104AlessandriaPiedmont, Italy
    952.2×
  105. 104TocopillaAntofagasta, Chile
    952.2×
  106. 106AranyaprathetSa Kaeo, Thailand
    952.2×
  107. 106XonacatlánMéxico, Mexico
    952.2×
  108. 108Ban Khlong PrawetBangkok, Thailand
    952.2×
  109. 109SalamancaGuanajuato, Mexico
    952.2×
  110. 109San Salvador TizatlalliMéxico, Mexico
    952.2×
  111. 111Phra PradaengSamut Prakan, Thailand
    942.1×
  112. 111HanfordCalifornia, United States
    942.1×
  113. 113TolucaMéxico, Mexico
    932.1×
  114. 114Wan ChaiWan Chai, Hong Kong
    932.1×
  115. 114LęborkPomerania, Poland
    932.1×
  116. 116BohumínMoravian-Silesian Region, Czechia
    932.1×
  117. 117BakuBaki, Azerbaijan
    922.1×
  118. 118ChisinauChișinău Municipality, Moldova
    922.1×
  119. 119StocktonCalifornia, United States
    912.1×
  120. 120MexicaliBaja California, Mexico
    912.0×
  121. 120VisaliaCalifornia, United States
    912.0×
  122. 122Villa Poeta José Gálvez BarrenecheaLima region, Peru
    912.0×
  123. 123CelayaGuanajuato, Mexico
    902.0×
  124. 124Roi EtRoi Et, Thailand
    902.0×
  125. 124KalasinKalasin, Thailand
    902.0×
  126. 126GyőrGyőr-Moson-Sopron, Hungary
    902.0×
  127. 127Český TěšínMoravian-Silesian Region, Czechia
    902.0×
  128. 128TakTak, Thailand
    892.0×
  129. 129LublinLublin, Poland
    892.0×
  130. 129WłocławekKujawsko-Pomorskie, Poland
    892.0×
  131. 129BakersfieldCalifornia, United States
    892.0×
  132. 132Sevlievolow-cost sensorsGabrovo, Bulgaria
    892.0×
  133. 133SunnysideWashington, United States
    892.0×
  134. 134Ubon RatchathaniUbon Ratchathani, Thailand
    892.0×
  135. 134Tepeji del Río de OcampoHidalgo, Mexico
    892.0×
  136. 136ZgierzŁódź Voivodeship, Poland
    881.9×
  137. 136RancaguaO'Higgins Region, Chile
    881.9×
  138. 138FresnoCalifornia, United States
    881.9×
  139. 139ParedesPorto, Portugal
    881.9×
  140. 140HavířovMoravian-Silesian Region, Czechia
    871.9×
  141. 140ModestoCalifornia, United States
    871.9×
  142. 142NitraNitra Region, Slovakia
    871.9×
  143. 143GrenobleAuvergne-Rhône-Alpes, France
    871.9×
  144. 143MartinŽilina Region, Slovakia
    871.9×
  145. 145FanlingNorth District, Hong Kong
    861.9×
  146. 146Mong KokYau Tsim Mong District, Hong Kong
    861.9×
  147. 147WarsawMazovia, Poland
    851.8×
  148. 148ŁaskŁódź Voivodeship, Poland
    851.8×
  149. 149PoznańGreater Poland, Poland
    851.8×
  150. 149CorcoranCalifornia, United States
    851.8×
  151. 151SiedlceMazovia, Poland
    851.8×
  152. 152Ciudad NezahualcoyotlMéxico, Mexico
    851.8×
  153. 153MeylanAuvergne-Rhône-Alpes, France
    841.8×
  154. 154PruszkówMazovia, Poland
    841.8×
  155. 155WawerMazovia, Poland
    831.8×
  156. 155OlsztynWarmia-Masuria, Poland
    831.8×
  157. 155ParisÎle-de-France, France
    831.8×
  158. 155KatowiceSilesia, Poland
    831.8×
  159. 155LewistonIdaho, United States
    831.8×
  160. 160Ban ChangRayong, Thailand
    831.8×
  161. 160Tin Shui WaiYuen Long, Hong Kong
    831.8×
  162. 162Frýdek-MístekMoravian-Silesian Region, Czechia
    831.8×
  163. 163OstravaMoravian-Silesian Region, Czechia
    831.7×
  164. 164YakimaWashington, United States
    831.7×
  165. 165ŁukówLublin, Poland
    821.7×
  166. 166GdańskPomerania, Poland
    821.7×
  167. 166LimaLima Province, Peru
    821.7×
  168. 168KrosnoSubcarpathia, Poland
    821.7×
  169. 169RayongRayong, Thailand
    821.7×
  170. 169San Tung Chung HangIslands, Hong Kong
    821.7×
  171. 171ManosqueProvence-Alpes-Côte d'Azur, France
    811.7×
  172. 171EsztergomKomárom-Esztergom, Hungary
    811.7×
  173. 171KrakówLesser Poland, Poland
    811.7×
  174. 174TarnówLesser Poland, Poland
    811.7×
  175. 174StarachowiceŚwiętokrzyskie, Poland
    811.7×
  176. 176Valašské MeziříčíZlín, Czechia
    811.7×
  177. 176ŚwiecieKujawsko-Pomorskie, Poland
    811.7×
  178. 176KrapkowiceOpole Voivodeship, Poland
    811.7×
  179. 176GdyniaPomerania, Poland
    811.7×
  180. 180ŽilinaŽilina Region, Slovakia
    801.7×
  181. 181JasłoSubcarpathia, Poland
    801.6×
  182. 181TratTrat, Thailand
    801.6×
  183. 181Si Sa KetSi Sa Ket, Thailand
    801.6×
  184. 181Sau Mau PingKwun Tong District, Hong Kong
    801.6×
  185. 181RužomberokŽilina Region, Slovakia
    801.6×
  186. 186SzamotułyGreater Poland, Poland
    801.6×
  187. 187RadomMazovia, Poland
    801.6×
  188. 188AthensAttica, Greece
    801.6×
  189. 189TrnavaTrnava Region, Slovakia
    791.6×
  190. 190OpoleOpole Voivodeship, Poland
    791.6×
  191. 191NiskoSubcarpathia, Poland
    791.6×
  192. 192AcharnésAttica, Greece
    791.6×
  193. 192MarseilleProvence-Alpes-Côte d'Azur, France
    791.6×
  194. 192Kędzierzyn-KoźleOpole Voivodeship, Poland
    791.6×
  195. 195KhartoumKhartoum, Sudan
    791.6×
  196. 195VictoriaCentral and Western, Hong Kong
    791.6×
  197. 195PrievidzaTrenčín Region, Slovakia
    791.6×
  198. 198ChanthaburiChanthaburi, Thailand
    781.6×
  199. 199Kwai ChungKwai Tsing District, Hong Kong
    781.6×
  200. 200ReimsGrand Est, France
    781.6×

Top 200 of 1,232 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 26, 2023, smogrank.com/history/2023-01-26 (accessed 2 Oct 2026).

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