SmogRank / History / January 7, 2023

Most polluted cities on January 7, 2023

957 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 562.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 7, 2023. All episodes.

← Peshawar 562.0 µg/m³ 500 µg/m³15 WHO 24-hour guideline
Every city ranked for January 7, 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. 1Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    500+37.5×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    500+23.3×
  3. 3DelhiDelhi, India
    43919.7×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    29614.7×
  5. 5Islamabadlow-cost sensorsIslamabad, Pakistan
    29114.4×
  6. 6PljevljaPljevlja, Montenegro
    24211.1×
  7. 7BaghdadBaghdad, Iraq
    2139.2×
  8. 8Banja LukaSrpska, Bosnia and Herzegovina
    2008.3×
  9. 9HyderabadTelangana, India
    1927.6×
  10. 10PodgoricaPodgorica, Montenegro
    1897.3×
  11. 11Kathmandulow-cost sensorsBagmati Province, Nepal
    1897.3×
  12. 12AlexandriaAlexandria, Egypt
    1856.9×
  13. 12Abujalow-cost sensorsFCT, Nigeria
    1856.9×
  14. 14MumbaiMaharashtra, India
    1816.6×
  15. 15ShanghaiShanghai, China
    1806.4×
  16. 16PristinaPristina, Kosovo
    1644.9×
  17. 17HanoiHanoi, Vietnam
    1644.9×
  18. 18KigaliKigali, Rwanda
    1614.6×
  19. 19Kampalalow-cost sensorsCentral Region, Uganda
    1604.6×
  20. 20BamakoBamako, Mali
    1584.3×
  21. 21Accralow-cost sensorsGreater Accra, Ghana
    1584.3×
  22. 22PinetownKwaZulu-Natal, South Africa
    1523.8×
  23. 23Almatylow-cost sensorsAlmaty, Kazakhstan
    1403.4×
  24. 24Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1323.2×
  25. 25Villa Poeta José Gálvez BarrenecheaLima region, Peru
    1233.0×
  26. 26Saint PaulMinnesota, United States
    1182.8×
  27. 27YangonYangon, Myanmar
    1102.6×
  28. 28Botevgradlow-cost sensorsSofia, Bulgaria
    1072.5×
  29. 29LublinLublin, Poland
    1072.5×
  30. 30MinneapolisMinnesota, United States
    1042.4×
  31. 31OtwockMazovia, Poland
    1032.4×
  32. 32San AntonioTexas, United States
    1032.4×
  33. 33ŚwiecieKujawsko-Pomorskie, Poland
    1032.4×
  34. 34Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1012.4×
  35. 35RochesterMinnesota, United States
    992.3×
  36. 36ShakopeeMinnesota, United States
    972.3×
  37. 37Saint MichaelMinnesota, United States
    962.2×
  38. 38PhoenixArizona, United States
    962.2×
  39. 39Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    942.2×
  40. 40KłodzkoLower Silesia, Poland
    942.1×
  41. 41GuangzhouGuangdong, China
    932.1×
  42. 42Apple ValleyMinnesota, United States
    932.1×
  43. 42Eau ClaireWisconsin, United States
    932.1×
  44. 44RacibórzSilesia, Poland
    922.1×
  45. 45Bielsko-BialaSilesia, Poland
    922.1×
  46. 46LimaLima Province, Peru
    912.1×
  47. 47WłocławekKujawsko-Pomorskie, Poland
    902.0×
  48. 48SzamotułyGreater Poland, Poland
    902.0×
  49. 49ŻyrardówMazovia, Poland
    902.0×
  50. 49NiskoSubcarpathia, Poland
    902.0×
  51. 51Saint CloudMinnesota, United States
    892.0×
  52. 51La CrosseWisconsin, United States
    892.0×
  53. 53WawerMazovia, Poland
    881.9×
  54. 53StarachowiceŚwiętokrzyskie, Poland
    881.9×
  55. 55LęborkPomerania, Poland
    881.9×
  56. 56Haskovolow-cost sensorsHaskovo, Bulgaria
    871.9×
  57. 57KrapkowiceOpole Voivodeship, Poland
    871.9×
  58. 58MukdahanMukdahan, Thailand
    871.9×
  59. 59RatchaburiRatchaburi, Thailand
    861.9×
  60. 59Des MoinesIowa, United States
    861.9×
  61. 61Ubon RatchathaniUbon Ratchathani, Thailand
    851.8×
  62. 62NanNan, Thailand
    851.8×
  63. 63AnkenyIowa, United States
    851.8×
  64. 64Mexico CityMexico City, Mexico
    841.8×
  65. 65Khlong Sam WaBangkok, Thailand
    841.8×
  66. 66Jastrzębie ZdrójSilesia, Poland
    831.8×
  67. 67LamphunLamphun, Thailand
    831.8×
  68. 68Mong KokYau Tsim Mong District, Hong Kong
    831.7×
  69. 69Ecatepec de MorelosMéxico, Mexico
    831.7×
  70. 70SukhothaiSukhothai, Thailand
    821.7×
  71. 70WaterlooIowa, United States
    821.7×
  72. 72Wan ChaiWan Chai, Hong Kong
    821.7×
  73. 72CuricóMaule Region, Chile
    821.7×
  74. 74DushanbeDushanbe, Tajikistan
    821.7×
  75. 74KatowiceSilesia, Poland
    821.7×
  76. 76TocopillaAntofagasta, Chile
    821.7×
  77. 77Saphan SungBangkok, Thailand
    811.7×
  78. 78KutnoŁódź Voivodeship, Poland
    811.7×
  79. 79FanlingNorth District, Hong Kong
    811.7×
  80. 80EłkWarmia-Masuria, Poland
    801.7×
  81. 80PakxanBolikhamsai, Laos
    801.7×
  82. 80ButteMontana, United States
    801.7×
  83. 83ToruńKujawsko-Pomorskie, Poland
    801.6×
  84. 84SunnysideWashington, United States
    791.6×
  85. 85Hua HinPrachuap Khiri Khan, Thailand
    791.6×
  86. 85GdyniaPomerania, Poland
    791.6×
  87. 87PruszkówMazovia, Poland
    791.6×
  88. 88Bang NaBangkok, Thailand
    791.6×
  89. 88Tin Shui WaiYuen Long, Hong Kong
    791.6×
  90. 88CuranilahueBiobio, Chile
    791.6×
  91. 91IrapuatoGuanajuato, Mexico
    791.6×
  92. 92Jelenia GóraLower Silesia, Poland
    781.6×
  93. 92León de los AldamaGuanajuato, Mexico
    781.6×
  94. 94Naucalpan de JuárezMéxico, Mexico
    781.6×
  95. 95KętrzynWarmia-Masuria, Poland
    781.6×
  96. 95West FargoNorth Dakota, United States
    781.6×
  97. 97KrakówLesser Poland, Poland
    771.6×
  98. 97AricaArica y Parinacota Region, Chile
    771.6×
  99. 99CelayaGuanajuato, Mexico
    771.5×
  100. 100SiedlceMazovia, Poland
    771.5×
  101. 100Tsuen WanTsuen Wan, Hong Kong
    771.5×
  102. 102NacimientoBiobio, Chile
    761.5×
  103. 103Kędzierzyn-KoźleOpole Voivodeship, Poland
    761.5×
  104. 104SuwałkiPodlasie, Poland
    761.5×
  105. 104KalasinKalasin, Thailand
    761.5×
  106. 106OlsztynWarmia-Masuria, Poland
    761.5×
  107. 106Nakhon RatchasimaNakhon Ratchasima, Thailand
    761.5×
  108. 106Tai PoTai Po, Hong Kong
    761.5×
  109. 109Sakon NakhonSakon Nakhon, Thailand
    751.5×
  110. 110SantiagoSantiago Metropolitan, Chile
    751.5×
  111. 111WarsawMazovia, Poland
    741.4×
  112. 111RzeszówSubcarpathia, Poland
    741.4×
  113. 113Ga-RankuwaNorth West, South Africa
    741.4×
  114. 114Sevlievolow-cost sensorsGabrovo, Bulgaria
    741.4×
  115. 114RadomMazovia, Poland
    741.4×
  116. 114VanderbijlparkGauteng, South Africa
    741.4×
  117. 114Puente AltoSantiago Metropolitan, Chile
    741.4×
  118. 118Viña del MarValparaiso, Chile
    741.4×
  119. 119ŁaskŁódź Voivodeship, Poland
    741.4×
  120. 120ChisinauChișinău Municipality, Moldova
    731.4×
  121. 120ZamośćLublin, Poland
    731.4×
  122. 120Nong KhaemBangkok, Thailand
    731.4×
  123. 123Mae SaiChiang Rai, Thailand
    731.4×
  124. 124Roi EtRoi Et, Thailand
    731.4×
  125. 124Sha TinSha Tin, Hong Kong
    731.4×
  126. 124SarpsborgØstfold, Norway
    731.4×
  127. 124Fort St. JohnBritish Columbia, Canada
    731.4×
  128. 128BeijingBeijing, China
    731.4×
  129. 128Grande PrairieAlberta, Canada
    731.4×
  130. 130Samut SakhonSamut Sakhon, Thailand
    721.4×
  131. 130Khan Na YaoBangkok, Thailand
    721.4×
  132. 132Chiang RaiChiang Rai, Thailand
    721.4×
  133. 132RengoO'Higgins Region, Chile
    721.4×
  134. 132QuinteroValparaiso, Chile
    721.4×
  135. 132ConcónValparaiso, Chile
    721.4×
  136. 136Kwai ChungKwai Tsing District, Hong Kong
    721.4×
  137. 136KościerzynaPomerania, Poland
    721.4×
  138. 136LincolnNebraska, United States
    721.4×
  139. 139Mae SotTak, Thailand
    721.3×
  140. 139PoznańGreater Poland, Poland
    721.3×
  141. 139Fort McMurrayAlberta, Canada
    721.3×
  142. 139Bueng KumBangkok, Thailand
    721.3×
  143. 143Sau Mau PingKwun Tong District, Hong Kong
    711.3×
  144. 143PłockMazovia, Poland
    711.3×
  145. 143TalaganteSantiago Metropolitan, Chile
    711.3×
  146. 146Konstancin-JeziornaMazovia, Poland
    711.3×
  147. 146UttaraditUttaradit, Thailand
    711.3×
  148. 146Bang KapiBangkok, Thailand
    711.3×
  149. 146Grand IslandNebraska, United States
    711.3×
  150. 150ZgierzŁódź Voivodeship, Poland
    711.3×
  151. 151Buri RamBuriram, Thailand
    711.3×
  152. 151Sham Shui PoSham Shui Po District, Hong Kong
    711.3×
  153. 151AbasoloGuanajuato, Mexico
    711.3×
  154. 151NorwoodOhio, United States
    711.3×
  155. 155Ban Khlong PrawetBangkok, Thailand
    701.3×
  156. 155WrocławLower Silesia, Poland
    701.3×
  157. 157SasolburgFree State, South Africa
    701.3×
  158. 157SalorTashkent Region, Uzbekistan
    701.3×
  159. 157Tha YangPhetchaburi, Thailand
    701.3×
  160. 157PhetchabunPhetchabun, Thailand
    701.3×
  161. 157Nong ChokBangkok, Thailand
    701.3×
  162. 157QuillotaValparaiso, Chile
    701.3×
  163. 157Jurupa ValleyCalifornia, United States
    701.3×
  164. 157YakimaWashington, United States
    701.3×
  165. 157Lat KrabangBangkok, Thailand
    701.3×
  166. 166PhraePhrae, Thailand
    701.3×
  167. 166WatertownSouth Dakota, United States
    701.3×
  168. 166ComptonCalifornia, United States
    701.3×
  169. 166Santa Anita - Los FicusLima region, Peru
    701.3×
  170. 170Si Maha PhotPrachin Buri, Thailand
    691.3×
  171. 170ValdostaGeorgia, United States
    691.3×
  172. 172Bang Khun ThianBangkok, Thailand
    691.3×
  173. 173NairobiNairobi County, Kenya
    691.3×
  174. 174ColomboWestern Province, Sri Lanka
    691.2×
  175. 174PhichitPhichit, Thailand
    691.2×
  176. 174BellevueNebraska, United States
    691.2×
  177. 174OmahaNebraska, United States
    691.2×
  178. 178CalamaAntofagasta, Chile
    691.2×
  179. 178CranbrookBritish Columbia, Canada
    691.2×
  180. 180Bang Bo DistrictSamut Prakan, Thailand
    691.2×
  181. 180ŁódźŁódź Voivodeship, Poland
    691.2×
  182. 180JacksonvilleFlorida, United States
    691.2×
  183. 180AnchorageAlaska, United States
    691.2×
  184. 184AugustówPodlasie, Poland
    681.2×
  185. 184PhayaoPhayao, Thailand
    681.2×
  186. 184Ban HouakhouaBokeo, Laos
    681.2×
  187. 184Los ÁngelesBiobio, Chile
    681.2×
  188. 188La SerenaCoquimbo Region, Chile
    681.2×
  189. 189JarosławSubcarpathia, Poland
    681.2×
  190. 189LampangLampang, Thailand
    681.2×
  191. 189LoeiLoei, Thailand
    681.2×
  192. 189BydgoszczKujawsko-Pomorskie, Poland
    681.2×
  193. 193PrzemyślSubcarpathia, Poland
    681.2×
  194. 193BangkokBangkok, Thailand
    681.2×
  195. 193IndianapolisIndiana, United States
    681.2×
  196. 196Ban Samae DamBangkok, Thailand
    681.2×
  197. 197BakuBaki, Azerbaijan
    671.2×
  198. 197Si Sa KetSi Sa Ket, Thailand
    671.2×
  199. 199Nakhon SawanNakhon Sawan, Thailand
    671.2×
  200. 199Nakhon PathomNakhon Pathom, Thailand
    671.2×

Top 200 of 957 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 7, 2023, smogrank.com/history/2023-01-07 (accessed 2 Oct 2026).

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