SmogRank / History / December 23, 2023

Most polluted cities on December 23, 2023

1,882 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 313.0 µg/m³. Each city's own local calendar day.

← Lahore 313.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 23, 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. 1Lahorelow-cost sensorsPunjab, Pakistan
    47520.9×
  2. 2DelhiDelhi, India
    46320.5×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    28614.1×
  4. 4Ulan BatorUlaanbaatar, Mongolia
    28113.7×
  5. 5N'DjamenaN’Djaména, Chad
    27213.1×
  6. 6KolkataWest Bengal, India
    22910.3×
  7. 7SalorTashkent Region, Uzbekistan
    2229.8×
  8. 8Banja LukaSrpska, Bosnia and Herzegovina
    2068.7×
  9. 9HyderabadTelangana, India
    1998.3×
  10. 10ShenyangLiaoning, China
    1917.5×
  11. 11Islamabadlow-cost sensorsIslamabad, Pakistan
    1897.3×
  12. 12MumbaiMaharashtra, India
    1846.8×
  13. 13Kathmandulow-cost sensorsBagmati Province, Nepal
    1786.2×
  14. 14Lagoslow-cost sensorsLagos, Nigeria
    1755.9×
  15. 15DushanbeDushanbe, Tajikistan
    1745.9×
  16. 16ChennaiTamil Nadu, India
    1725.7×
  17. 17Karachilow-cost sensorsSindh, Pakistan
    1715.6×
  18. 18HanoiHanoi, Vietnam
    1624.7×
  19. 19Abujalow-cost sensorsFCT, Nigeria
    1594.5×
  20. 20TlaquepaqueJalisco, Mexico
    1584.4×
  21. 21VelesVeles, North Macedonia
    1584.3×
  22. 22Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1564.2×
  23. 23JakartaJakarta, Indonesia
    1523.8×
  24. 24SkopjeGrad Skopje, North Macedonia
    1523.8×
  25. 25Almatylow-cost sensorsAlmaty, Kazakhstan
    1373.3×
  26. 26NišCentral Serbia, Serbia
    1343.2×
  27. 27ManlleuCatalonia, Spain
    1243.0×
  28. 28GuadalajaraJalisco, Mexico
    1212.9×
  29. 29Zacatepec de HidalgoMorelos, Mexico
    1202.9×
  30. 30Kampalalow-cost sensorsCentral Region, Uganda
    1182.8×
  31. 31KigaliKigali, Rwanda
    1152.7×
  32. 32SarajevoFederation of B&H, Bosnia and Herzegovina
    1142.7×
  33. 33ZapopanJalisco, Mexico
    1122.7×
  34. 34Samut SakhonSamut Sakhon, Thailand
    1112.6×
  35. 35TolucaMéxico, Mexico
    1102.6×
  36. 36San Salvador TizatlalliMéxico, Mexico
    1072.5×
  37. 37San Martin Texmelucan de LabastidaPuebla, Mexico
    1072.5×
  38. 38KavadarciKavadarci, North Macedonia
    1052.5×
  39. 39East RidgeTennessee, United States
    1042.5×
  40. 40BitolaBitola, North Macedonia
    1042.4×
  41. 41Ciudad Benito JuárezNuevo León, Mexico
    1032.4×
  42. 42CholulaPuebla, Mexico
    1032.4×
  43. 43Tuen MunTuen Mun, Hong Kong
    1002.3×
  44. 44AmoraSetúbal, Portugal
    992.3×
  45. 45Mixquiahuala de JuárezHidalgo, Mexico
    982.3×
  46. 46Santa CatarinaNuevo León, Mexico
    972.3×
  47. 47Mueang NonthaburiNonthaburi, Thailand
    972.2×
  48. 48Şabāḩ as SālimMubārak al Kabīr, Kuwait
    952.2×
  49. 48KochaniKochani, North Macedonia
    952.2×
  50. 50Wan ChaiWan Chai, Hong Kong
    952.2×
  51. 51BangkokBangkok, Thailand
    932.1×
  52. 52MurciaMurcia, Spain
    922.1×
  53. 53Nong KhaemBangkok, Thailand
    912.1×
  54. 54IlindenIlinden, North Macedonia
    912.0×
  55. 55GuangzhouGuangdong, China
    892.0×
  56. 56TehuacánPuebla, Mexico
    881.9×
  57. 57BeijingBeijing, China
    881.9×
  58. 58OurenseGalicia, Spain
    881.9×
  59. 59Tin Shui WaiYuen Long, Hong Kong
    871.9×
  60. 60Nakhon PathomNakhon Pathom, Thailand
    861.9×
  61. 61Khlong LuangPathum Thani, Thailand
    861.8×
  62. 61FresnoCalifornia, United States
    861.8×
  63. 63AppletonWisconsin, United States
    851.8×
  64. 64Bang Bo DistrictSamut Prakan, Thailand
    851.8×
  65. 65Tula de AllendeHidalgo, Mexico
    851.8×
  66. 66BakuBaki, Azerbaijan
    841.8×
  67. 66SaltilloCoahuila, Mexico
    841.8×
  68. 66Green BayWisconsin, United States
    841.8×
  69. 69SallanchesAuvergne-Rhône-Alpes, France
    841.8×
  70. 70BeneventoCampania, Italy
    831.8×
  71. 71CuernavacaMorelos, Mexico
    831.8×
  72. 72Phra PradaengSamut Prakan, Thailand
    831.7×
  73. 72SevillaAndalusia, Spain
    831.7×
  74. 74Viña del MarValparaiso, Chile
    831.7×
  75. 75MonterreyNuevo León, Mexico
    821.7×
  76. 75CelayaGuanajuato, Mexico
    821.7×
  77. 77Ciudad General EscobedoNuevo León, Mexico
    821.7×
  78. 78AthensAttica, Greece
    821.7×
  79. 79Samut PrakanSamut Prakan, Thailand
    811.7×
  80. 79Grand RapidsMichigan, United States
    811.7×
  81. 81Addis AbabaAddis Ababa, Ethiopia
    811.7×
  82. 82ColomboWestern Province, Sri Lanka
    801.7×
  83. 82VictoriaCentral and Western, Hong Kong
    801.7×
  84. 82Puente AltoSantiago Metropolitan, Chile
    801.7×
  85. 85Tai PoTai Po, Hong Kong
    801.7×
  86. 86Mong KokYau Tsim Mong District, Hong Kong
    801.6×
  87. 86Silao de la VictoriaGuanajuato, Mexico
    801.6×
  88. 88SantiagoSantiago Metropolitan, Chile
    801.6×
  89. 89BailénAndalusia, Spain
    791.6×
  90. 90Collado-VillalbaMadrid, Spain
    791.6×
  91. 90QuinteroValparaiso, Chile
    791.6×
  92. 90MexicaliBaja California, Mexico
    791.6×
  93. 93AlgiersAlgiers, Algeria
    791.6×
  94. 94VolosThessaly, Greece
    791.6×
  95. 95SpartanburgSouth Carolina, United States
    781.6×
  96. 95HanfordCalifornia, United States
    781.6×
  97. 97Sha TinSha Tin, Hong Kong
    771.6×
  98. 97ParedesPorto, Portugal
    771.6×
  99. 97PueblaPuebla, Mexico
    771.6×
  100. 97ChattanoogaTennessee, United States
    771.6×
  101. 101Eau ClaireWisconsin, United States
    771.5×
  102. 102BurnsvilleMinnesota, United States
    771.5×
  103. 102Saint CloudMinnesota, United States
    771.5×
  104. 104ShakopeeMinnesota, United States
    761.5×
  105. 104ClovisCalifornia, United States
    761.5×
  106. 106BlaineMinnesota, United States
    761.5×
  107. 107Tsuen WanTsuen Wan, Hong Kong
    761.5×
  108. 108MilwaukeeWisconsin, United States
    761.5×
  109. 109TijuanaBaja California, Mexico
    751.5×
  110. 110Sau Mau PingKwun Tong District, Hong Kong
    751.5×
  111. 110GreenvilleSouth Carolina, United States
    751.5×
  112. 110SuperiorWisconsin, United States
    751.5×
  113. 113Kwai ChungKwai Tsing District, Hong Kong
    751.5×
  114. 114TetovoTetovo, North Macedonia
    751.5×
  115. 114MinneapolisMinnesota, United States
    751.5×
  116. 116Tepeji del Río de OcampoHidalgo, Mexico
    741.4×
  117. 117QuilpuéValparaiso, Chile
    741.4×
  118. 118CapannoriTuscany, Italy
    741.4×
  119. 119PátraWest Greece, Greece
    741.4×
  120. 119Sham Shui PoSham Shui Po District, Hong Kong
    741.4×
  121. 119QuillotaValparaiso, Chile
    741.4×
  122. 119SarniaOntario, Canada
    741.4×
  123. 123TalaganteSantiago Metropolitan, Chile
    741.4×
  124. 123Ciudad ApodacaNuevo León, Mexico
    741.4×
  125. 125Saint MichaelMinnesota, United States
    741.4×
  126. 126MadisonWisconsin, United States
    731.4×
  127. 127ThessaloníkiCentral Macedonia, Greece
    731.4×
  128. 127DearbornMichigan, United States
    731.4×
  129. 127JenisonMichigan, United States
    731.4×
  130. 127Saint PaulMinnesota, United States
    731.4×
  131. 127BakersfieldCalifornia, United States
    731.4×
  132. 132ValdemoroMadrid, Spain
    731.4×
  133. 132CalexicoCalifornia, United States
    731.4×
  134. 134VigoGalicia, Spain
    731.4×
  135. 135Cadereyta JiménezNuevo León, Mexico
    731.4×
  136. 136DanburyConnecticut, United States
    721.4×
  137. 136Port HuronMichigan, United States
    721.4×
  138. 138GreensboroNorth Carolina, United States
    721.4×
  139. 139WindsorOntario, Canada
    721.4×
  140. 140KennesawGeorgia, United States
    721.4×
  141. 140CorcoranCalifornia, United States
    721.4×
  142. 142RancaguaO'Higgins Region, Chile
    721.3×
  143. 142HarrisonburgVirginia, United States
    721.3×
  144. 142Arden-ArcadeCalifornia, United States
    721.3×
  145. 145Santiago de QuerétaroQuerétaro, Mexico
    711.3×
  146. 146FanlingNorth District, Hong Kong
    711.3×
  147. 146NaplesCampania, Italy
    711.3×
  148. 146AricaArica y Parinacota Region, Chile
    711.3×
  149. 146GadsdenAlabama, United States
    711.3×
  150. 146DurhamNorth Carolina, United States
    711.3×
  151. 146Jardines de la SillaNuevo León, Mexico
    711.3×
  152. 152VisaliaCalifornia, United States
    711.3×
  153. 153RoveretoTrentino-Alto Adige, Italy
    711.3×
  154. 154BorgomaneroPiedmont, Italy
    711.3×
  155. 154Franklin ParkIllinois, United States
    711.3×
  156. 156MonacoMunicipality of Monaco, Monaco
    701.3×
  157. 156ColumbusGeorgia, United States
    701.3×
  158. 156New HavenConnecticut, United States
    701.3×
  159. 159IndianapolisIndiana, United States
    701.3×
  160. 159WaukeshaWisconsin, United States
    701.3×
  161. 161ToméBiobio, Chile
    701.3×
  162. 161NacimientoBiobio, Chile
    701.3×
  163. 163DetroitMichigan, United States
    701.3×
  164. 163ToledoOhio, United States
    701.3×
  165. 165HualpénBiobio, Chile
    701.3×
  166. 165ChesapeakeVirginia, United States
    701.3×
  167. 167CoquimboCoquimbo Region, Chile
    691.3×
  168. 168Ciudad RealCastille-La Mancha, Spain
    691.3×
  169. 168RengoO'Higgins Region, Chile
    691.3×
  170. 168DuluthMinnesota, United States
    691.3×
  171. 168ChathamOntario, Canada
    691.3×
  172. 168HamiltonOntario, Canada
    691.3×
  173. 173ConcónValparaiso, Chile
    691.3×
  174. 174RochesterMinnesota, United States
    691.2×
  175. 175IrapuatoGuanajuato, Mexico
    691.2×
  176. 176LawrencevilleGeorgia, United States
    691.2×
  177. 176HartfordConnecticut, United States
    691.2×
  178. 176ElizabethNew Jersey, United States
    691.2×
  179. 176StocktonCalifornia, United States
    691.2×
  180. 180YangonYangon, Myanmar
    681.2×
  181. 180BirminghamAlabama, United States
    681.2×
  182. 180KnoxvilleTennessee, United States
    681.2×
  183. 180Lincoln ParkMichigan, United States
    681.2×
  184. 184San Tung Chung HangIslands, Hong Kong
    681.2×
  185. 184Victoria de DurangoDurango, Mexico
    681.2×
  186. 184KalamazooMichigan, United States
    681.2×
  187. 184State CollegePennsylvania, United States
    681.2×
  188. 188CasertaCampania, Italy
    681.2×
  189. 188Apple ValleyMinnesota, United States
    681.2×
  190. 188ClevelandOhio, United States
    681.2×
  191. 191Mollet del VallèsCatalonia, Spain
    681.2×
  192. 192MaderaCalifornia, United States
    671.2×
  193. 193TarbesOccitanie, France
    671.2×
  194. 193BogotáBogota D.C., Colombia
    671.2×
  195. 193León de los AldamaGuanajuato, Mexico
    671.2×
  196. 193TrussvilleAlabama, United States
    671.2×
  197. 193Terre HauteIndiana, United States
    671.2×
  198. 193South MilwaukeeWisconsin, United States
    671.2×
  199. 199ClemmonsNorth Carolina, United States
    671.2×
  200. 199MiddletownOhio, United States
    671.2×

Top 200 of 1,882 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, December 23, 2023, smogrank.com/history/2023-12-23 (accessed 2 Oct 2026).

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