SmogRank / History / January 10, 2023

Most polluted cities on January 10, 2023

1,139 cities ranked by their average PM2.5 over the day; the worst was Gómez Palacio, Mexico, at 511.6 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 10, 2023. All episodes.

← Gómez Palacio 511.6 µg/m³ 500 µg/m³15 WHO 24-hour guideline
Every city ranked for January 10, 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+34.1×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    500+28.7×
  3. 3N'DjamenaN’Djaména, Chad
    500+23.7×
  4. 4DelhiDelhi, India
    44920.0×
  5. 5Dhakalow-cost sensorsDhaka Division, Bangladesh
    26212.5×
  6. 6AlexandriaAlexandria, Egypt
    2219.7×
  7. 7HanoiHanoi, Vietnam
    1947.8×
  8. 8Karachilow-cost sensorsSindh, Pakistan
    1927.6×
  9. 9Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1846.9×
  10. 10HyderabadTelangana, India
    1776.2×
  11. 11Islamabadlow-cost sensorsIslamabad, Pakistan
    1715.6×
  12. 12EdmontonAlberta, Canada
    1665.1×
  13. 13Kathmandulow-cost sensorsBagmati Province, Nepal
    1655.0×
  14. 14MumbaiMaharashtra, India
    1604.6×
  15. 15Sherwood ParkAlberta, Canada
    1604.5×
  16. 16KigaliKigali, Rwanda
    1584.4×
  17. 17Saint PaulMinnesota, United States
    1574.3×
  18. 18Abujalow-cost sensorsFCT, Nigeria
    1554.1×
  19. 19St. AlbertAlberta, Canada
    1554.0×
  20. 20Accralow-cost sensorsGreater Accra, Ghana
    1544.0×
  21. 21ShakopeeMinnesota, United States
    1533.9×
  22. 22RatchaburiRatchaburi, Thailand
    1523.8×
  23. 23ŚwiecieKujawsko-Pomorskie, Poland
    1513.7×
  24. 24Apple ValleyMinnesota, United States
    1473.6×
  25. 25Sevlievolow-cost sensorsGabrovo, Bulgaria
    1443.5×
  26. 26Bang Khun ThianBangkok, Thailand
    1433.5×
  27. 27MinneapolisMinnesota, United States
    1423.5×
  28. 28Khlong Sam WaBangkok, Thailand
    1413.5×
  29. 29Hua HinPrachuap Khiri Khan, Thailand
    1413.4×
  30. 30TlaquepaqueJalisco, Mexico
    1403.4×
  31. 31BurgosCastille and León, Spain
    1343.3×
  32. 32Samut SakhonSamut Sakhon, Thailand
    1323.2×
  33. 33Ga-RankuwaNorth West, South Africa
    1313.2×
  34. 34Nong KhaemBangkok, Thailand
    1303.1×
  35. 35Haskovolow-cost sensorsHaskovo, Bulgaria
    1293.1×
  36. 36DushanbeDushanbe, Tajikistan
    1283.1×
  37. 37Mueang NonthaburiNonthaburi, Thailand
    1273.1×
  38. 38Bang NaBangkok, Thailand
    1263.1×
  39. 39Ban Samae DamBangkok, Thailand
    1253.0×
  40. 40Khan Na YaoBangkok, Thailand
    1243.0×
  41. 41Bueng KumBangkok, Thailand
    1243.0×
  42. 42Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1243.0×
  43. 42BamakoBamako, Mali
    1243.0×
  44. 44LamphunLamphun, Thailand
    1243.0×
  45. 45Tha YangPhetchaburi, Thailand
    1233.0×
  46. 46Lat KrabangBangkok, Thailand
    1233.0×
  47. 47SukhothaiSukhothai, Thailand
    1222.9×
  48. 48EłkWarmia-Masuria, Poland
    1222.9×
  49. 49Saphan SungBangkok, Thailand
    1212.9×
  50. 50Mae SotTak, Thailand
    1202.9×
  51. 51BangkokBangkok, Thailand
    1192.9×
  52. 51Lak SiBangkok, Thailand
    1192.9×
  53. 53Bang KapiBangkok, Thailand
    1182.8×
  54. 54Nong ChokBangkok, Thailand
    1172.8×
  55. 55BeijingBeijing, China
    1172.8×
  56. 56NanNan, Thailand
    1162.8×
  57. 57GuadalajaraJalisco, Mexico
    1152.7×
  58. 58Eau ClaireWisconsin, United States
    1152.7×
  59. 59KętrzynWarmia-Masuria, Poland
    1132.7×
  60. 59San Mateo AtencoMéxico, Mexico
    1132.7×
  61. 61Khlong LuangPathum Thani, Thailand
    1122.7×
  62. 62Ban Khlong PrawetBangkok, Thailand
    1112.6×
  63. 63Sai MaiBangkok, Thailand
    1112.6×
  64. 64TolucaMéxico, Mexico
    1102.6×
  65. 65KłodzkoLower Silesia, Poland
    1082.6×
  66. 66ŁaskŁódź Voivodeship, Poland
    1072.5×
  67. 67BlaineMinnesota, United States
    1072.5×
  68. 68XonacatlánMéxico, Mexico
    1072.5×
  69. 69Suphan BuriSuphan Buri, Thailand
    1062.5×
  70. 69Ban ChangRayong, Thailand
    1062.5×
  71. 71PhraePhrae, Thailand
    1052.5×
  72. 72Nakhon SawanNakhon Sawan, Thailand
    1042.4×
  73. 73RayongRayong, Thailand
    1032.4×
  74. 74Phra PradaengSamut Prakan, Thailand
    1022.4×
  75. 75Kampalalow-cost sensorsCentral Region, Uganda
    1022.4×
  76. 76Bang Bo DistrictSamut Prakan, Thailand
    1012.4×
  77. 77LampangLampang, Thailand
    1012.4×
  78. 78RochesterMinnesota, United States
    1002.4×
  79. 79PhichitPhichit, Thailand
    992.3×
  80. 80Saint CloudMinnesota, United States
    992.3×
  81. 81Grande PrairieAlberta, Canada
    992.3×
  82. 82LimaLima Province, Peru
    992.3×
  83. 82Villa Poeta José Gálvez BarrenecheaLima region, Peru
    992.3×
  84. 84PhayaoPhayao, Thailand
    982.3×
  85. 85Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    982.3×
  86. 85MonterreyNuevo León, Mexico
    982.3×
  87. 87LublinLublin, Poland
    972.2×
  88. 88VanderbijlparkGauteng, South Africa
    962.2×
  89. 88San Salvador TizatlalliMéxico, Mexico
    962.2×
  90. 90VolosThessaly, Greece
    962.2×
  91. 90ZapopanJalisco, Mexico
    962.2×
  92. 92Lop BuriLopburi, Thailand
    952.2×
  93. 92SalamancaGuanajuato, Mexico
    952.2×
  94. 94GrajewoPodlasie, Poland
    942.1×
  95. 95NacimientoBiobio, Chile
    942.1×
  96. 96BaghdadBaghdad, Iraq
    932.1×
  97. 97BucharestBucharest, Romania
    932.1×
  98. 97BadgerAlaska, United States
    932.1×
  99. 99LęborkPomerania, Poland
    932.1×
  100. 100Surat ThaniSurat Thani, Thailand
    922.1×
  101. 101WłocławekKujawsko-Pomorskie, Poland
    912.0×
  102. 102PristinaPristina, Kosovo
    912.0×
  103. 103Ciudad ApodacaNuevo León, Mexico
    912.0×
  104. 104Naucalpan de JuárezMéxico, Mexico
    902.0×
  105. 105PinetownKwaZulu-Natal, South Africa
    902.0×
  106. 106PułtuskMazovia, Poland
    902.0×
  107. 107RadomMazovia, Poland
    902.0×
  108. 107Kamphaeng PhetKamphaeng Phet, Thailand
    902.0×
  109. 107Ecatepec de MorelosMéxico, Mexico
    902.0×
  110. 110ŻyrardówMazovia, Poland
    892.0×
  111. 110SiedlceMazovia, Poland
    892.0×
  112. 110KutnoŁódź Voivodeship, Poland
    892.0×
  113. 113OtwockMazovia, Poland
    892.0×
  114. 113Chiang RaiChiang Rai, Thailand
    892.0×
  115. 113PueblaPuebla, Mexico
    892.0×
  116. 116MexicaliBaja California, Mexico
    892.0×
  117. 117Mae SaiChiang Rai, Thailand
    881.9×
  118. 118Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    881.9×
  119. 118LoeiLoei, Thailand
    881.9×
  120. 118ZgierzŁódź Voivodeship, Poland
    881.9×
  121. 121Ciudad NezahualcoyotlMéxico, Mexico
    881.9×
  122. 122Cadereyta JiménezNuevo León, Mexico
    881.9×
  123. 123PruszkówMazovia, Poland
    871.9×
  124. 123Chiang MaiChiang Mai, Thailand
    871.9×
  125. 125Santa CatarinaNuevo León, Mexico
    871.9×
  126. 126IrapuatoGuanajuato, Mexico
    871.9×
  127. 127PljevljaPljevlja, Montenegro
    871.9×
  128. 127León de los AldamaGuanajuato, Mexico
    871.9×
  129. 127AppletonWisconsin, United States
    871.9×
  130. 130PłockMazovia, Poland
    861.9×
  131. 131Si Maha PhotPrachin Buri, Thailand
    861.8×
  132. 131Green BayWisconsin, United States
    861.8×
  133. 133San Luis PotosíSan Luis Potosí, Mexico
    851.8×
  134. 133BrunswickGeorgia, United States
    851.8×
  135. 133PennsaukenNew Jersey, United States
    851.8×
  136. 136DěčínÚstí nad Labem Region, Czechia
    851.8×
  137. 137Mexico CityMexico City, Mexico
    851.8×
  138. 138BitolaBitola, North Macedonia
    841.8×
  139. 139PhuketPhuket, Thailand
    841.8×
  140. 139San Juan del RíoQuerétaro, Mexico
    841.8×
  141. 139AbasoloGuanajuato, Mexico
    841.8×
  142. 139RedfordMichigan, United States
    841.8×
  143. 143KhartoumKhartoum, Sudan
    831.8×
  144. 143JarosławSubcarpathia, Poland
    831.8×
  145. 145ColomboWestern Province, Sri Lanka
    831.8×
  146. 145Red DeerAlberta, Canada
    831.8×
  147. 147WawerMazovia, Poland
    831.7×
  148. 148Tepeji del Río de OcampoHidalgo, Mexico
    831.7×
  149. 149WarsawMazovia, Poland
    821.7×
  150. 149BloemfonteinFree State, South Africa
    821.7×
  151. 151Port HuronMichigan, United States
    821.7×
  152. 152NiskoSubcarpathia, Poland
    821.7×
  153. 152Jastrzębie ZdrójSilesia, Poland
    821.7×
  154. 152AricaArica y Parinacota Region, Chile
    821.7×
  155. 155SaraburiSaraburi, Thailand
    811.7×
  156. 155ToruńKujawsko-Pomorskie, Poland
    811.7×
  157. 157Şabāḩ as SālimMubārak al Kabīr, Kuwait
    811.7×
  158. 158San CarlosÑuble, Chile
    801.7×
  159. 158WaukeshaWisconsin, United States
    801.7×
  160. 160DearbornMichigan, United States
    801.7×
  161. 161JohannesburgGauteng, South Africa
    801.6×
  162. 162Grand RapidsMichigan, United States
    801.6×
  163. 162ClevelandOhio, United States
    801.6×
  164. 164KościerzynaPomerania, Poland
    801.6×
  165. 165Nong Bua LamphuNong Bua Lamphu, Thailand
    791.6×
  166. 166PhetchabunPhetchabun, Thailand
    791.6×
  167. 166TocopillaAntofagasta, Chile
    791.6×
  168. 166FlintMichigan, United States
    791.6×
  169. 169TakTak, Thailand
    791.6×
  170. 170Ban HouakhouaBokeo, Laos
    781.6×
  171. 170SarniaOntario, Canada
    781.6×
  172. 172RuseRuse, Bulgaria
    781.6×
  173. 173StarachowiceŚwiętokrzyskie, Poland
    771.6×
  174. 174CelayaGuanajuato, Mexico
    771.5×
  175. 174DetroitMichigan, United States
    771.5×
  176. 176SasolburgFree State, South Africa
    771.5×
  177. 177ChanthaburiChanthaburi, Thailand
    771.5×
  178. 177LebanonPennsylvania, United States
    771.5×
  179. 179TratTrat, Thailand
    761.5×
  180. 180OlsztynWarmia-Masuria, Poland
    761.5×
  181. 181CuernavacaMorelos, Mexico
    761.5×
  182. 181SavannahGeorgia, United States
    761.5×
  183. 181IndianapolisIndiana, United States
    761.5×
  184. 181YoungstownOhio, United States
    761.5×
  185. 185La CrosseWisconsin, United States
    761.5×
  186. 186SzamotułyGreater Poland, Poland
    751.5×
  187. 186MadisonWisconsin, United States
    751.5×
  188. 188Ciudad JuárezChihuahua, Mexico
    751.5×
  189. 188EriePennsylvania, United States
    751.5×
  190. 188NogalesArizona, United States
    751.5×
  191. 191Nakhon RatchasimaNakhon Ratchasima, Thailand
    741.4×
  192. 192St. ThomasOntario, Canada
    741.4×
  193. 193ThessaloníkiCentral Macedonia, Greece
    741.4×
  194. 193ZamośćLublin, Poland
    741.4×
  195. 193RzeszówSubcarpathia, Poland
    741.4×
  196. 193KanchanaburiKanchanaburi, Thailand
    741.4×
  197. 193YpsilantiMichigan, United States
    741.4×
  198. 198KalamazooMichigan, United States
    741.4×
  199. 199South MilwaukeeWisconsin, United States
    741.4×
  200. 200AranyaprathetSa Kaeo, Thailand
    731.4×

Top 200 of 1,139 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 10, 2023, smogrank.com/history/2023-01-10 (accessed 2 Oct 2026).

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