SmogRank / History / December 23, 2024

Most polluted cities on December 23, 2024

2,295 cities ranked by their average PM2.5 over the day; the worst was Delhi, India, at 275.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 23, 2024. All episodes.

← Delhi 275.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for December 23, 2024, 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
    40018.3×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    36417.1×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    35416.8×
  4. 4DushanbeDushanbe, Tajikistan
    29314.5×
  5. 5Dhakalow-cost sensorsDhaka Division, Bangladesh
    27313.2×
  6. 6Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    2249.9×
  7. 7KolkataWest Bengal, India
    2078.8×
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    1998.3×
  9. 9N'DjamenaN’Djaména, Chad
    1988.1×
  10. 10Novi PazarCentral Serbia, Serbia
    1968.0×
  11. 11SalorTashkent Region, Uzbekistan
    1947.8×
  12. 12Almatylow-cost sensorsAlmaty, Kazakhstan
    1867.0×
  13. 13BaghdadBaghdad, Iraq
    1856.9×
  14. 14Yerevanlow-cost sensorsYerevan, Armenia
    1816.5×
  15. 15CairoCairo, Egypt
    1816.5×
  16. 16Kampalalow-cost sensorsCentral Region, Uganda
    1745.9×
  17. 17MumbaiMaharashtra, India
    1745.9×
  18. 18Kathmandulow-cost sensorsBagmati Province, Nepal
    1745.9×
  19. 19NegotinCentral Serbia, Serbia
    1715.6×
  20. 19Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1715.6×
  21. 21Ulan BatorUlaanbaatar, Mongolia
    1645.0×
  22. 22Accralow-cost sensorsGreater Accra, Ghana
    1634.8×
  23. 23DejCluj County, Romania
    1584.4×
  24. 24ValjevoCentral Serbia, Serbia
    1564.2×
  25. 25OtwockMazovia, Poland
    1564.2×
  26. 26CodleaBrașov County, Romania
    1523.8×
  27. 27UžiceCentral Serbia, Serbia
    1513.7×
  28. 28Vientianelow-cost sensorsVientiane Prefecture, Laos
    1493.7×
  29. 29Wan ChaiWan Chai, Hong Kong
    1443.5×
  30. 30GuangzhouGuangdong, China
    1423.5×
  31. 31Tuen MunTuen Mun, Hong Kong
    1343.3×
  32. 32KourouGuyane, French Guiana
    1343.2×
  33. 33CayenneGuyane, French Guiana
    1293.1×
  34. 34DhahranEastern Province, Saudi Arabia
    1273.1×
  35. 35AugustówPodlasie, Poland
    1263.0×
  36. 36Haskovolow-cost sensorsHaskovo, Bulgaria
    1263.0×
  37. 37ManamaManama, Bahrain
    1243.0×
  38. 38Tin Shui WaiYuen Long, Hong Kong
    1222.9×
  39. 39Sevlievolow-cost sensorsGabrovo, Bulgaria
    1212.9×
  40. 40BurbankCalifornia, United States
    1192.9×
  41. 41Tai PoTai Po, Hong Kong
    1182.8×
  42. 42Kwai ChungKwai Tsing District, Hong Kong
    1172.8×
  43. 43Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1162.8×
  44. 44Mong KokYau Tsim Mong District, Hong Kong
    1132.7×
  45. 44Khlong Sam WaBangkok, Thailand
    1132.7×
  46. 46AntananarivoAnalamanga, Madagascar
    1132.7×
  47. 47BakuBaki, Azerbaijan
    1122.7×
  48. 47Medina Estateslow-cost sensorsGreater Accra, Ghana
    1122.7×
  49. 49Sau Mau PingKwun Tong District, Hong Kong
    1122.7×
  50. 50Nong KhaemBangkok, Thailand
    1112.6×
  51. 50VictoriaCentral and Western, Hong Kong
    1112.6×
  52. 52Sha TinSha Tin, Hong Kong
    1102.6×
  53. 53Tsuen WanTsuen Wan, Hong Kong
    1102.6×
  54. 54San Tung Chung HangIslands, Hong Kong
    1092.6×
  55. 54FanlingNorth District, Hong Kong
    1092.6×
  56. 54TijuanaBaja California, Mexico
    1092.6×
  57. 57DziałdowoWarmia-Masuria, Poland
    1082.6×
  58. 58Sham Shui PoSham Shui Po District, Hong Kong
    1082.5×
  59. 59Los AngelesCalifornia, United States
    1072.5×
  60. 60Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1062.5×
  61. 61HanfordCalifornia, United States
    1042.4×
  62. 62Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    1042.4×
  63. 62ZgierzŁódź Voivodeship, Poland
    1042.4×
  64. 64FontanaCalifornia, United States
    1032.4×
  65. 64Jurupa ValleyCalifornia, United States
    1032.4×
  66. 66ChaozhouTaiwan, Taiwan
    1022.4×
  67. 67Bueng KumBangkok, Thailand
    1012.4×
  68. 68Ban Samae DamBangkok, Thailand
    1012.4×
  69. 69YangonYangon, Myanmar
    1002.3×
  70. 70Şabāḩ as SālimMubārak al Kabīr, Kuwait
    992.3×
  71. 71Khan Na YaoBangkok, Thailand
    982.3×
  72. 72PančevoVojvodina, Serbia
    972.3×
  73. 73AshgabatAshgabat, Turkmenistan
    972.3×
  74. 74Lat KrabangBangkok, Thailand
    972.2×
  75. 75Bang NaBangkok, Thailand
    972.2×
  76. 76RiversideCalifornia, United States
    952.2×
  77. 77Lak SiBangkok, Thailand
    952.2×
  78. 78ComptonCalifornia, United States
    942.1×
  79. 78Saphan SungBangkok, Thailand
    942.1×
  80. 80BangkokBangkok, Thailand
    932.1×
  81. 81StarachowiceŚwiętokrzyskie, Poland
    932.1×
  82. 81Mueang NonthaburiNonthaburi, Thailand
    932.1×
  83. 83AsahikawaHokkaido, Japan
    932.1×
  84. 84ThessaloníkiCentral Macedonia, Greece
    932.1×
  85. 84Banja LukaSrpska, Bosnia and Herzegovina
    932.1×
  86. 86Nong ChokBangkok, Thailand
    932.1×
  87. 87KielceŚwiętokrzyskie, Poland
    932.1×
  88. 88RadomMazovia, Poland
    922.1×
  89. 88ChiguayanteBiobio, Chile
    922.1×
  90. 88BakersfieldCalifornia, United States
    922.1×
  91. 91Bang KapiBangkok, Thailand
    922.1×
  92. 92LazarevacCentral Serbia, Serbia
    922.1×
  93. 93KraljevoCentral Serbia, Serbia
    912.0×
  94. 93Sai MaiBangkok, Thailand
    912.0×
  95. 95LegionowoMazovia, Poland
    912.0×
  96. 96SmederevoCentral Serbia, Serbia
    912.0×
  97. 97Ban Khlong PrawetBangkok, Thailand
    902.0×
  98. 98ŁaskŁódź Voivodeship, Poland
    902.0×
  99. 99Istanbullow-cost sensorsIstanbul, Turkey
    902.0×
  100. 100ColomboWestern Province, Sri Lanka
    902.0×
  101. 101NiskoSubcarpathia, Poland
    892.0×
  102. 102Cluj-NapocaCluj County, Romania
    892.0×
  103. 103PhoenixArizona, United States
    892.0×
  104. 104DębicaSubcarpathia, Poland
    892.0×
  105. 105Santa Anita - Los FicusLima region, Peru
    892.0×
  106. 106ZemunCentral Serbia, Serbia
    881.9×
  107. 107ŻyrardówMazovia, Poland
    881.9×
  108. 107Hawthornelow-cost sensorsCalifornia, United States
    881.9×
  109. 109WawerMazovia, Poland
    881.9×
  110. 110RuseRuse, Bulgaria
    871.9×
  111. 110Inglewoodlow-cost sensorsCalifornia, United States
    871.9×
  112. 112Santa Monicalow-cost sensorsCalifornia, United States
    871.9×
  113. 113FengshanTakao, Taiwan
    871.9×
  114. 114PruszkówMazovia, Poland
    861.9×
  115. 115Jacobo HunterArequipa, Peru
    861.9×
  116. 116VisaliaCalifornia, United States
    861.9×
  117. 117RacibórzSilesia, Poland
    851.8×
  118. 118SuwałkiPodlasie, Poland
    851.8×
  119. 118FutogVojvodina, Serbia
    851.8×
  120. 120Yangp'yŏngGyeonggi-do, South Korea
    841.8×
  121. 120PubalGyeonggi-do, South Korea
    841.8×
  122. 120Agouralow-cost sensorsCalifornia, United States
    841.8×
  123. 123KragujevacCentral Serbia, Serbia
    841.8×
  124. 123Ciudad Benito JuárezNuevo León, Mexico
    841.8×
  125. 125TurlockCalifornia, United States
    831.8×
  126. 126ObrenovacCentral Serbia, Serbia
    831.8×
  127. 127Carsonlow-cost sensorsCalifornia, United States
    831.7×
  128. 128ModestoCalifornia, United States
    821.7×
  129. 129KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    821.7×
  130. 130NacimientoBiobio, Chile
    821.7×
  131. 131AlbuquerqueNew Mexico, United States
    811.7×
  132. 132Addis AbabaAddis Ababa, Ethiopia
    811.7×
  133. 132ZamośćLublin, Poland
    811.7×
  134. 132QuillotaValparaiso, Chile
    811.7×
  135. 132Torrancelow-cost sensorsCalifornia, United States
    811.7×
  136. 136ChennaiTamil Nadu, India
    801.7×
  137. 136JakartaJakarta, Indonesia
    801.7×
  138. 136KaohsiungTakao, Taiwan
    801.7×
  139. 136HattiesburgMississippi, United States
    801.7×
  140. 140TalaganteSantiago Metropolitan, Chile
    801.7×
  141. 140SantiagoSantiago Metropolitan, Chile
    801.7×
  142. 140MillcreekUtah, United States
    801.7×
  143. 143OpoleOpole Voivodeship, Poland
    801.6×
  144. 143MesaArizona, United States
    801.6×
  145. 145MielecSubcarpathia, Poland
    801.6×
  146. 145NišCentral Serbia, Serbia
    801.6×
  147. 145ShanghaiShanghai, China
    801.6×
  148. 148GlendaleArizona, United States
    801.6×
  149. 149YeojuGyeonggi-do, South Korea
    801.6×
  150. 150Icheon-siGyeonggi-do, South Korea
    791.6×
  151. 151LublinLublin, Poland
    791.6×
  152. 152IrapuatoGuanajuato, Mexico
    791.6×
  153. 153PrzemyślSubcarpathia, Poland
    791.6×
  154. 153Puente AltoSantiago Metropolitan, Chile
    791.6×
  155. 153GlendoraCalifornia, United States
    791.6×
  156. 156KinzanChungcheongnam-do, South Korea
    781.6×
  157. 157AmmanAmman, Jordan
    781.6×
  158. 157RzeszówSubcarpathia, Poland
    781.6×
  159. 159BelgradeCentral Serbia, Serbia
    781.6×
  160. 160ShenyangLiaoning, China
    781.6×
  161. 161BiałystokPodlasie, Poland
    781.6×
  162. 161CalamaAntofagasta, Chile
    781.6×
  163. 161NogalesArizona, United States
    781.6×
  164. 164RengoO'Higgins Region, Chile
    771.5×
  165. 164FresnoCalifornia, United States
    771.5×
  166. 166JarosławSubcarpathia, Poland
    771.5×
  167. 166QuinteroValparaiso, Chile
    771.5×
  168. 166Florinlow-cost sensorsCalifornia, United States
    771.5×
  169. 169Konstancin-JeziornaMazovia, Poland
    771.5×
  170. 169QuilpuéValparaiso, Chile
    771.5×
  171. 169ConcónValparaiso, Chile
    771.5×
  172. 172StocktonCalifornia, United States
    771.5×
  173. 173AgüimesCanary Islands, Spain
    761.5×
  174. 173TempeArizona, United States
    761.5×
  175. 175Las VegasNevada, United States
    761.5×
  176. 175OremUtah, United States
    761.5×
  177. 177RadomskoŁódź Voivodeship, Poland
    761.5×
  178. 178MaspalomasCanary Islands, Spain
    761.5×
  179. 178Viña del MarValparaiso, Chile
    761.5×
  180. 178Salt Lake CityUtah, United States
    761.5×
  181. 181PuliTaiwan, Taiwan
    761.5×
  182. 181AricaArica y Parinacota Region, Chile
    761.5×
  183. 183SeonghwanChungcheongnam-do, South Korea
    751.5×
  184. 183Ciudad NezahualcoyotlMéxico, Mexico
    751.5×
  185. 183Long BeachCalifornia, United States
    751.5×
  186. 183MantecaCalifornia, United States
    751.5×
  187. 183West JordanUtah, United States
    751.5×
  188. 188BuyeoChungcheongnam-do, South Korea
    751.5×
  189. 189YangjuGyeonggi-do, South Korea
    751.5×
  190. 189BailénAndalusia, Spain
    751.5×
  191. 191PyeongtaekGyeonggi-do, South Korea
    741.4×
  192. 191HwadoGyeonggi-do, South Korea
    741.4×
  193. 191ZvolenBanská Bystrica Region, Slovakia
    741.4×
  194. 191Le LamentinMartinique, Martinique
    741.4×
  195. 195Casa GrandeArizona, United States
    741.4×
  196. 196JinchengFukien, Taiwan
    741.4×
  197. 196Silao de la VictoriaGuanajuato, Mexico
    741.4×
  198. 198Botevgradlow-cost sensorsSofia, Bulgaria
    741.4×
  199. 198Jastrzębie ZdrójSilesia, Poland
    741.4×
  200. 198San ClementeIca, Peru
    741.4×

Top 200 of 2,295 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

Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, most polluted cities, PM2.5, December 23, 2024, smogrank.com/history/2024-12-23 (accessed 3 Oct 2026).

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