SmogRank / History / January 8, 2023

Most polluted cities on January 8, 2023

939 cities ranked by their average PM2.5 over the day; the worst was Delhi, India, at 299.0 µg/m³. Each city's own local calendar day.

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

← Delhi 299.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 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. 1DelhiDelhi, India
    44719.9×
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    42419.1×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    40018.3×
  4. 4N'DjamenaN’Djaména, Chad
    29514.7×
  5. 5PljevljaPljevlja, Montenegro
    2078.8×
  6. 6Kathmandulow-cost sensorsBagmati Province, Nepal
    1968.0×
  7. 7Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1957.9×
  8. 8HanoiHanoi, Vietnam
    1937.7×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    1897.3×
  10. 10PristinaPristina, Kosovo
    1836.7×
  11. 11AlexandriaAlexandria, Egypt
    1826.7×
  12. 12PodgoricaPodgorica, Montenegro
    1786.3×
  13. 13MumbaiMaharashtra, India
    1725.7×
  14. 14HyderabadTelangana, India
    1715.6×
  15. 15Almatylow-cost sensorsAlmaty, Kazakhstan
    1665.1×
  16. 16Kampalalow-cost sensorsCentral Region, Uganda
    1645.0×
  17. 17KigaliKigali, Rwanda
    1624.7×
  18. 18Jastrzębie ZdrójSilesia, Poland
    1614.7×
  19. 19Abujalow-cost sensorsFCT, Nigeria
    1554.1×
  20. 20BamakoBamako, Mali
    1523.8×
  21. 21BaghdadBaghdad, Iraq
    1503.7×
  22. 22Botevgradlow-cost sensorsSofia, Bulgaria
    1453.6×
  23. 23ShanghaiShanghai, China
    1313.2×
  24. 24ŚwiecieKujawsko-Pomorskie, Poland
    1283.1×
  25. 25Haskovolow-cost sensorsHaskovo, Bulgaria
    1243.0×
  26. 26RatchaburiRatchaburi, Thailand
    1212.9×
  27. 27Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1192.9×
  28. 28Ubon RatchathaniUbon Ratchathani, Thailand
    1152.8×
  29. 29Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1152.7×
  30. 30Bielsko-BialaSilesia, Poland
    1142.7×
  31. 31Khlong Sam WaBangkok, Thailand
    1122.7×
  32. 32Czechowice-DziedziceSilesia, Poland
    1122.7×
  33. 33Saint PaulMinnesota, United States
    1092.6×
  34. 34EdmontonAlberta, Canada
    1082.6×
  35. 35ColomboWestern Province, Sri Lanka
    1082.6×
  36. 35Bang NaBangkok, Thailand
    1082.6×
  37. 37Nong KhaemBangkok, Thailand
    1082.5×
  38. 38SukhothaiSukhothai, Thailand
    1072.5×
  39. 39MukdahanMukdahan, Thailand
    1062.5×
  40. 40GuangzhouGuangdong, China
    1042.5×
  41. 41Saphan SungBangkok, Thailand
    1042.4×
  42. 42Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1032.4×
  43. 43Ban Samae DamBangkok, Thailand
    1022.4×
  44. 43KrakówLesser Poland, Poland
    1022.4×
  45. 45Nakhon RatchasimaNakhon Ratchasima, Thailand
    1012.4×
  46. 46LamphunLamphun, Thailand
    1002.4×
  47. 47LimaLima Province, Peru
    1002.3×
  48. 48NanNan, Thailand
    992.3×
  49. 48Bang Khun ThianBangkok, Thailand
    992.3×
  50. 50Sevlievolow-cost sensorsGabrovo, Bulgaria
    992.3×
  51. 50Khlong LuangPathum Thani, Thailand
    992.3×
  52. 50ShakopeeMinnesota, United States
    992.3×
  53. 53Villa Poeta José Gálvez BarrenecheaLima region, Peru
    982.3×
  54. 53NogalesSonora, Mexico
    982.3×
  55. 55Nong ChokBangkok, Thailand
    982.3×
  56. 55Nong Bua LamphuNong Bua Lamphu, Thailand
    982.3×
  57. 57Buri RamBuriram, Thailand
    982.3×
  58. 58MinneapolisMinnesota, United States
    982.3×
  59. 59PhayaoPhayao, Thailand
    972.3×
  60. 60Hua HinPrachuap Khiri Khan, Thailand
    972.2×
  61. 60Si Maha PhotPrachin Buri, Thailand
    972.2×
  62. 60PakxanBolikhamsai, Laos
    972.2×
  63. 63LoeiLoei, Thailand
    962.2×
  64. 64Mae SotTak, Thailand
    962.2×
  65. 64Bueng KumBangkok, Thailand
    962.2×
  66. 66YangonYangon, Myanmar
    962.2×
  67. 66West FargoNorth Dakota, United States
    962.2×
  68. 68Bang KapiBangkok, Thailand
    952.2×
  69. 68Lak SiBangkok, Thailand
    952.2×
  70. 70Suphan BuriSuphan Buri, Thailand
    942.2×
  71. 71AranyaprathetSa Kaeo, Thailand
    942.2×
  72. 71LęborkPomerania, Poland
    942.2×
  73. 71Lat KrabangBangkok, Thailand
    942.2×
  74. 74Sakon NakhonSakon Nakhon, Thailand
    942.1×
  75. 75Roi EtRoi Et, Thailand
    932.1×
  76. 75GdyniaPomerania, Poland
    932.1×
  77. 77Si Sa KetSi Sa Ket, Thailand
    932.1×
  78. 77KatowiceSilesia, Poland
    932.1×
  79. 79Udon ThaniUdon Thani, Thailand
    932.1×
  80. 79Lop BuriLopburi, Thailand
    932.1×
  81. 79Khan Na YaoBangkok, Thailand
    932.1×
  82. 82PhraePhrae, Thailand
    922.1×
  83. 82Nakhon PathomNakhon Pathom, Thailand
    922.1×
  84. 82BangkokBangkok, Thailand
    922.1×
  85. 82SzamotułyGreater Poland, Poland
    922.1×
  86. 86Samut SakhonSamut Sakhon, Thailand
    922.1×
  87. 87Tha YangPhetchaburi, Thailand
    912.1×
  88. 87PhetchabunPhetchabun, Thailand
    912.1×
  89. 89ToruńKujawsko-Pomorskie, Poland
    912.0×
  90. 90Sai MaiBangkok, Thailand
    902.0×
  91. 91Ban Khlong PrawetBangkok, Thailand
    902.0×
  92. 92Mueang NonthaburiNonthaburi, Thailand
    892.0×
  93. 92Apple ValleyMinnesota, United States
    892.0×
  94. 92RochesterMinnesota, United States
    892.0×
  95. 95KalasinKalasin, Thailand
    892.0×
  96. 95TijuanaBaja California, Mexico
    892.0×
  97. 95WatertownSouth Dakota, United States
    892.0×
  98. 98Mae SaiChiang Rai, Thailand
    892.0×
  99. 99PhichitPhichit, Thailand
    881.9×
  100. 100ChaiyaphumChaiyaphum, Thailand
    881.9×
  101. 101PoznańGreater Poland, Poland
    871.9×
  102. 102Nakhon SawanNakhon Sawan, Thailand
    871.9×
  103. 103Chiang RaiChiang Rai, Thailand
    871.9×
  104. 103Ban HouakhouaBokeo, Laos
    871.9×
  105. 105SalorTashkent Region, Uzbekistan
    861.9×
  106. 106NogalesArizona, United States
    851.8×
  107. 106PhoenixArizona, United States
    851.8×
  108. 108WrocławLower Silesia, Poland
    841.8×
  109. 109LampangLampang, Thailand
    841.8×
  110. 109RacibórzSilesia, Poland
    841.8×
  111. 111SuperiorWisconsin, United States
    841.8×
  112. 112UttaraditUttaradit, Thailand
    841.8×
  113. 112ChanthaburiChanthaburi, Thailand
    841.8×
  114. 114StarachowiceŚwiętokrzyskie, Poland
    841.8×
  115. 114IrapuatoGuanajuato, Mexico
    841.8×
  116. 116GdańskPomerania, Poland
    831.8×
  117. 117LublinLublin, Poland
    831.8×
  118. 117WłocławekKujawsko-Pomorskie, Poland
    831.8×
  119. 119DushanbeDushanbe, Tajikistan
    821.7×
  120. 120AberdeenSouth Dakota, United States
    821.7×
  121. 121ComptonCalifornia, United States
    821.7×
  122. 121St. AlbertAlberta, Canada
    821.7×
  123. 123ŻyrardówMazovia, Poland
    821.7×
  124. 124Saint CloudMinnesota, United States
    811.7×
  125. 125Sherwood ParkAlberta, Canada
    811.7×
  126. 126RayongRayong, Thailand
    811.7×
  127. 126GreeleyColorado, United States
    811.7×
  128. 128AbasoloGuanajuato, Mexico
    801.7×
  129. 129RadomMazovia, Poland
    801.7×
  130. 130Ban ChangRayong, Thailand
    791.6×
  131. 131SaraburiSaraburi, Thailand
    791.6×
  132. 132Phra PradaengSamut Prakan, Thailand
    791.6×
  133. 133Eau ClaireWisconsin, United States
    781.6×
  134. 134Ciudad NezahualcoyotlMéxico, Mexico
    781.6×
  135. 134AnkenyIowa, United States
    781.6×
  136. 136UstkaPomerania, Poland
    781.6×
  137. 137AricaArica y Parinacota Region, Chile
    781.6×
  138. 138eMbalenhleMpumalanga, South Africa
    771.6×
  139. 138ŁaskŁódź Voivodeship, Poland
    771.6×
  140. 138EtwatwaGauteng, South Africa
    771.6×
  141. 141KościerzynaPomerania, Poland
    771.5×
  142. 141San CarlosÑuble, Chile
    771.5×
  143. 143BydgoszczKujawsko-Pomorskie, Poland
    771.5×
  144. 144MuscatineIowa, United States
    771.5×
  145. 145Zielona GóraLubusz, Poland
    761.5×
  146. 145Gorzów WielkopolskiLubusz, Poland
    761.5×
  147. 147ChisinauChișinău Municipality, Moldova
    761.5×
  148. 148KutnoŁódź Voivodeship, Poland
    751.5×
  149. 149TratTrat, Thailand
    751.5×
  150. 150Chiang MaiChiang Mai, Thailand
    751.5×
  151. 151León de los AldamaGuanajuato, Mexico
    741.4×
  152. 151AlbanyGeorgia, United States
    741.4×
  153. 153JohannesburgGauteng, South Africa
    741.4×
  154. 153TocopillaAntofagasta, Chile
    741.4×
  155. 153WaterlooIowa, United States
    741.4×
  156. 156Wan ChaiWan Chai, Hong Kong
    741.4×
  157. 156Jurupa ValleyCalifornia, United States
    741.4×
  158. 156SunnysideWashington, United States
    741.4×
  159. 159Mexico CityMexico City, Mexico
    741.4×
  160. 159Ciudad JuárezChihuahua, Mexico
    741.4×
  161. 161Grande PrairieAlberta, Canada
    741.4×
  162. 162BloemfonteinFree State, South Africa
    731.4×
  163. 162BeijingBeijing, China
    731.4×
  164. 162Santa Anita - Los FicusLima region, Peru
    731.4×
  165. 165Fruit CoveFlorida, United States
    731.4×
  166. 166Ga-RankuwaNorth West, South Africa
    731.4×
  167. 166CallaoCallao, Peru
    731.4×
  168. 168WarsawMazovia, Poland
    731.4×
  169. 168PłockMazovia, Poland
    731.4×
  170. 170VanderbijlparkGauteng, South Africa
    721.4×
  171. 170Jelenia GóraLower Silesia, Poland
    721.4×
  172. 170Ecatepec de MorelosMéxico, Mexico
    721.4×
  173. 170NacimientoBiobio, Chile
    721.4×
  174. 170San Francisco De BorjaLima region, Peru
    721.4×
  175. 175OtwockMazovia, Poland
    721.4×
  176. 175Mong KokYau Tsim Mong District, Hong Kong
    721.4×
  177. 175CuranilahueBiobio, Chile
    721.4×
  178. 178WichitaKansas, United States
    721.3×
  179. 179RancaguaO'Higgins Region, Chile
    711.3×
  180. 180OlsztynWarmia-Masuria, Poland
    711.3×
  181. 180SantiagoSantiago Metropolitan, Chile
    711.3×
  182. 180Puente AltoSantiago Metropolitan, Chile
    711.3×
  183. 180CuricóMaule Region, Chile
    711.3×
  184. 184Gabrovolow-cost sensorsGabrovo, Bulgaria
    711.3×
  185. 184RzeszówSubcarpathia, Poland
    711.3×
  186. 184PruszkówMazovia, Poland
    711.3×
  187. 187ColumbusGeorgia, United States
    711.3×
  188. 188Fort St. JohnBritish Columbia, Canada
    711.3×
  189. 189KrapkowiceOpole Voivodeship, Poland
    711.3×
  190. 189QuinteroValparaiso, Chile
    711.3×
  191. 189San AntonioTexas, United States
    711.3×
  192. 192ValdostaGeorgia, United States
    701.3×
  193. 192BellevueNebraska, United States
    701.3×
  194. 194Kamphaeng PhetKamphaeng Phet, Thailand
    701.3×
  195. 194DavenportIowa, United States
    701.3×
  196. 196FanlingNorth District, Hong Kong
    701.3×
  197. 197NiskoSubcarpathia, Poland
    701.3×
  198. 198WawerMazovia, Poland
    691.3×
  199. 198KętrzynWarmia-Masuria, Poland
    691.3×
  200. 198CelayaGuanajuato, Mexico
    691.3×

Top 200 of 939 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 8, 2023, smogrank.com/history/2023-01-08 (accessed 2 Oct 2026).

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