SmogRank / History / December 29, 2023

Most polluted cities on December 29, 2023

1,933 cities ranked by their average PM2.5 over the day; the worst was Delhi, India, at 279.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 29, 2023. All episodes.

← Delhi 279.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for December 29, 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
    40818.6×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    37217.4×
  3. 3Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    36017.0×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    25411.9×
  5. 5N'DjamenaN’Djaména, Chad
    24211.1×
  6. 6KolkataWest Bengal, India
    22810.2×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    2169.4×
  8. 7Abujalow-cost sensorsFCT, Nigeria
    2169.4×
  9. 9Karachilow-cost sensorsSindh, Pakistan
    2028.5×
  10. 10MumbaiMaharashtra, India
    1978.1×
  11. 11Banja LukaSrpska, Bosnia and Herzegovina
    1947.8×
  12. 12SalorTashkent Region, Uzbekistan
    1937.7×
  13. 13TetovoTetovo, North Macedonia
    1927.6×
  14. 14Lagoslow-cost sensorsLagos, Nigeria
    1867.0×
  15. 15Ulan BatorUlaanbaatar, Mongolia
    1846.9×
  16. 16Kampalalow-cost sensorsCentral Region, Uganda
    1846.8×
  17. 17ManlleuCatalonia, Spain
    1816.6×
  18. 18SkopjeGrad Skopje, North Macedonia
    1806.5×
  19. 19NišCentral Serbia, Serbia
    1806.4×
  20. 20CapannoriTuscany, Italy
    1756.0×
  21. 21ShenyangLiaoning, China
    1756.0×
  22. 22VelesVeles, North Macedonia
    1695.4×
  23. 23BitolaBitola, North Macedonia
    1665.1×
  24. 24HyderabadTelangana, India
    1655.1×
  25. 25LleidaCatalonia, Spain
    1655.0×
  26. 26KavadarciKavadarci, North Macedonia
    1644.9×
  27. 27DushanbeDushanbe, Tajikistan
    1604.6×
  28. 28Kathmandulow-cost sensorsBagmati Province, Nepal
    1574.3×
  29. 29IlindenIlinden, North Macedonia
    1574.3×
  30. 30BelgradeCentral Serbia, Serbia
    1574.2×
  31. 31GuangzhouGuangdong, China
    1513.7×
  32. 32PristinaPristina, Kosovo
    1503.7×
  33. 32MurciaMurcia, Spain
    1503.7×
  34. 34NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    1493.7×
  35. 35Victoria de DurangoDurango, Mexico
    1483.6×
  36. 36Mueang NonthaburiNonthaburi, Thailand
    1473.6×
  37. 37Mollet del VallèsCatalonia, Spain
    1443.5×
  38. 38Ciudad Benito JuárezNuevo León, Mexico
    1413.5×
  39. 39SarajevoFederation of B&H, Bosnia and Herzegovina
    1403.4×
  40. 40JakartaJakarta, Indonesia
    1403.4×
  41. 41Samut SakhonSamut Sakhon, Thailand
    1393.4×
  42. 42IaşiIași County, Romania
    1383.4×
  43. 43KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1363.3×
  44. 44ArlesProvence-Alpes-Côte d'Azur, France
    1343.3×
  45. 45CholulaPuebla, Mexico
    1343.3×
  46. 46DejCluj County, Romania
    1343.3×
  47. 47AthensAttica, Greece
    1323.2×
  48. 48Nakhon PathomNakhon Pathom, Thailand
    1303.2×
  49. 49MiskolcBorsod-Abaúj-Zemplén, Hungary
    1303.2×
  50. 50ThessaloníkiCentral Macedonia, Greece
    1293.1×
  51. 51ValdemoroMadrid, Spain
    1233.0×
  52. 52Cluj-NapocaCluj County, Romania
    1222.9×
  53. 53TijuanaBaja California, Mexico
    1212.9×
  54. 54Haskovolow-cost sensorsHaskovo, Bulgaria
    1162.8×
  55. 55TorreviejaValencia, Spain
    1162.8×
  56. 56Khlong LuangPathum Thani, Thailand
    1152.7×
  57. 57Ciudad RealCastille-La Mancha, Spain
    1142.7×
  58. 58VolosThessaly, Greece
    1132.7×
  59. 59BailénAndalusia, Spain
    1122.7×
  60. 60BangkokBangkok, Thailand
    1122.7×
  61. 60BeneventoCampania, Italy
    1122.7×
  62. 62GrenobleAuvergne-Rhône-Alpes, France
    1102.6×
  63. 63ZvolenBanská Bystrica Region, Slovakia
    1092.6×
  64. 64AlessandriaPiedmont, Italy
    1082.6×
  65. 65Spišská Nová VesKošice Region, Slovakia
    1082.6×
  66. 65KochaniKochani, North Macedonia
    1082.6×
  67. 67TurinPiedmont, Italy
    1062.5×
  68. 68ValenciaValencia, Spain
    1052.5×
  69. 69KigaliKigali, Rwanda
    1052.5×
  70. 70Nong KhaemBangkok, Thailand
    1032.4×
  71. 70AvignonProvence-Alpes-Côte d'Azur, France
    1032.4×
  72. 72Tuen MunTuen Mun, Hong Kong
    1012.4×
  73. 72Banská BystricaBanská Bystrica Region, Slovakia
    1012.4×
  74. 74TraunUpper Austria, Austria
    1002.4×
  75. 75AlgiersAlgiers, Algeria
    1002.3×
  76. 75PartizánskeTrenčín Region, Slovakia
    1002.3×
  77. 77PrievidzaTrenčín Region, Slovakia
    992.3×
  78. 78ChennaiTamil Nadu, India
    982.3×
  79. 79TrnavaTrnava Region, Slovakia
    982.3×
  80. 80TrenčínTrenčín Region, Slovakia
    962.2×
  81. 81NaplesCampania, Italy
    962.2×
  82. 82ColomboWestern Province, Sri Lanka
    952.2×
  83. 82CórdobaAndalusia, Spain
    952.2×
  84. 84Phra PradaengSamut Prakan, Thailand
    952.2×
  85. 85GrazStyria, Austria
    952.2×
  86. 86SevillaAndalusia, Spain
    942.1×
  87. 87CartagenaMurcia, Spain
    932.1×
  88. 87MeylanAuvergne-Rhône-Alpes, France
    932.1×
  89. 89Žiar nad HronomBanská Bystrica Region, Slovakia
    932.1×
  90. 90KošiceKošice Region, Slovakia
    932.1×
  91. 91Ciudad ApodacaNuevo León, Mexico
    932.1×
  92. 91MillcreekUtah, United States
    932.1×
  93. 93GyőrGyőr-Moson-Sopron, Hungary
    932.1×
  94. 94RužomberokŽilina Region, Slovakia
    922.1×
  95. 95Samut PrakanSamut Prakan, Thailand
    922.1×
  96. 95Tin Shui WaiYuen Long, Hong Kong
    922.1×
  97. 95Jurupa ValleyCalifornia, United States
    922.1×
  98. 98Botevgradlow-cost sensorsSofia, Bulgaria
    922.1×
  99. 99MóstolesMadrid, Spain
    912.1×
  100. 100TsushimaNagasaki, Japan
    912.0×
  101. 101PrešovPrešov Region, Slovakia
    912.0×
  102. 102SzegedCsongrád, Hungary
    912.0×
  103. 102GranadaAndalusia, Spain
    912.0×
  104. 104HandlováTrenčín Region, Slovakia
    912.0×
  105. 105Collado-VillalbaMadrid, Spain
    902.0×
  106. 106HumennéPrešov Region, Slovakia
    902.0×
  107. 107PátraWest Greece, Greece
    881.9×
  108. 107BratislavaBratislava Region, Slovakia
    881.9×
  109. 109LinzUpper Austria, Austria
    881.9×
  110. 110Ceglie MessapicaApulia, Italy
    881.9×
  111. 111Wan ChaiWan Chai, Hong Kong
    881.9×
  112. 111West JordanUtah, United States
    881.9×
  113. 113FréjusProvence-Alpes-Côte d'Azur, France
    871.9×
  114. 114San Francisco TlalcilalcalpanMéxico, Mexico
    871.9×
  115. 115BucharestBucharest, Romania
    871.9×
  116. 116YangonYangon, Myanmar
    871.9×
  117. 116FontanaCalifornia, United States
    871.9×
  118. 118MadridMadrid, Spain
    861.9×
  119. 119CastresOccitanie, France
    861.9×
  120. 120CraiovaDolj, Romania
    861.9×
  121. 120BarcelonaCatalonia, Spain
    861.9×
  122. 120ZapopanJalisco, Mexico
    861.9×
  123. 120GuadalajaraJalisco, Mexico
    861.9×
  124. 124San DiegoCalifornia, United States
    861.9×
  125. 125TarragonaCatalonia, Spain
    861.8×
  126. 126EsztergomKomárom-Esztergom, Hungary
    851.8×
  127. 126RoveretoTrentino-Alto Adige, Italy
    851.8×
  128. 128NitraNitra Region, Slovakia
    851.8×
  129. 128Zacatepec de HidalgoMorelos, Mexico
    851.8×
  130. 130ToledoCastille-La Mancha, Spain
    851.8×
  131. 131ŽilinaŽilina Region, Slovakia
    851.8×
  132. 132Maebaru-chūōFukuoka, Japan
    851.8×
  133. 133SenicaTrnava Region, Slovakia
    841.8×
  134. 134CosladaMadrid, Spain
    841.8×
  135. 135OurenseGalicia, Spain
    841.8×
  136. 136GardanneProvence-Alpes-Côte d'Azur, France
    831.8×
  137. 136MexicaliBaja California, Mexico
    831.8×
  138. 136FairbanksAlaska, United States
    831.8×
  139. 139PiraeusAttica, Greece
    831.7×
  140. 140Karlova VesBratislava Region, Slovakia
    831.7×
  141. 141Almatylow-cost sensorsAlmaty, Kazakhstan
    821.7×
  142. 141Tanushimarumachi-toyokiFukuoka, Japan
    821.7×
  143. 143Puente AltoSantiago Metropolitan, Chile
    821.7×
  144. 144Şabāḩ as SālimMubārak al Kabīr, Kuwait
    821.7×
  145. 145SantiagoSantiago Metropolitan, Chile
    811.7×
  146. 146SninaPrešov Region, Slovakia
    811.7×
  147. 146Grao de MurviedroValencia, Spain
    811.7×
  148. 146AnsfeldenUpper Austria, Austria
    811.7×
  149. 146JōsōIbaraki, Japan
    811.7×
  150. 150AcharnésAttica, Greece
    811.7×
  151. 150Ciudad General EscobedoNuevo León, Mexico
    811.7×
  152. 150Salt Lake CityUtah, United States
    811.7×
  153. 150LiberpolisCounty of Osijek-Baranja, Croatia
    811.7×
  154. 154AlgecirasAndalusia, Spain
    811.7×
  155. 154IkiNagasaki, Japan
    811.7×
  156. 156Mong KokYau Tsim Mong District, Hong Kong
    801.7×
  157. 156BolzanoTrentino-Alto Adige, Italy
    801.7×
  158. 158AkashiHyōgo, Japan
    801.7×
  159. 158PerpignanOccitanie, France
    801.7×
  160. 158ComptonCalifornia, United States
    801.7×
  161. 161TarbesOccitanie, France
    801.6×
  162. 162Gabrovolow-cost sensorsGabrovo, Bulgaria
    801.6×
  163. 163Tsuen WanTsuen Wan, Hong Kong
    801.6×
  164. 163KitakyushuFukuoka, Japan
    801.6×
  165. 163AnaheimCalifornia, United States
    801.6×
  166. 166NîmesOccitanie, France
    791.6×
  167. 166LourdesOccitanie, France
    791.6×
  168. 168AsprópyrgosAttica, Greece
    791.6×
  169. 168Vranov nad TopľouPrešov Region, Slovakia
    791.6×
  170. 168CuencaCastille-La Mancha, Spain
    791.6×
  171. 171WolfsbergCarinthia, Austria
    791.6×
  172. 172SallanchesAuvergne-Rhône-Alpes, France
    791.6×
  173. 172RiversideCalifornia, United States
    791.6×
  174. 174BorgomaneroPiedmont, Italy
    791.6×
  175. 175TolucaMéxico, Mexico
    781.6×
  176. 175HigashigōSaga, Japan
    781.6×
  177. 177RijekaPrimorje-Gorski Kotar, Croatia
    781.6×
  178. 177Carsonlow-cost sensorsCalifornia, United States
    781.6×
  179. 179Santa CatarinaNuevo León, Mexico
    781.6×
  180. 180WelsUpper Austria, Austria
    781.6×
  181. 180MontpellierOccitanie, France
    781.6×
  182. 180MarmandeNew Aquitaine, France
    781.6×
  183. 180Chula VistaCalifornia, United States
    781.6×
  184. 184KurumeFukuoka, Japan
    771.6×
  185. 184JesiThe Marches, Italy
    771.6×
  186. 184KogaFukuoka, Japan
    771.6×
  187. 187CelayaGuanajuato, Mexico
    771.5×
  188. 188JaénAndalusia, Spain
    771.5×
  189. 188ToulonProvence-Alpes-Côte d'Azur, France
    771.5×
  190. 188AlbertvilleAuvergne-Rhône-Alpes, France
    771.5×
  191. 191YawataKyoto, Japan
    771.5×
  192. 192SaltilloCoahuila, Mexico
    771.5×
  193. 193LunelOccitanie, France
    761.5×
  194. 193San Salvador TizatlalliMéxico, Mexico
    761.5×
  195. 195Tai PoTai Po, Hong Kong
    761.5×
  196. 195KobeHyōgo, Japan
    761.5×
  197. 197Hawthornelow-cost sensorsCalifornia, United States
    761.5×
  198. 197Prince GeorgeBritish Columbia, Canada
    761.5×
  199. 199Sham Shui PoSham Shui Po District, Hong Kong
    761.5×
  200. 200MagnaUtah, United States
    761.5×

Top 200 of 1,933 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 29, 2023, smogrank.com/history/2023-12-29 (accessed 2 Oct 2026).

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