SmogRank / History / December 27, 2023

Most polluted cities on December 27, 2023

1,941 cities ranked by their average PM2.5 over the day; the worst was Zapopan, Mexico, at 541.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 27, 2023. All episodes.

← Zapopan 541.0 µg/m³ 500 µg/m³15 WHO 24-hour guideline
Every city ranked for December 27, 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. 1ZapopanJalisco, Mexico
    500+36.1×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    500+25.7×
  3. 3DelhiDelhi, India
    39618.2×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    33216.1×
  5. 5Ulan BatorUlaanbaatar, Mongolia
    24811.5×
  6. 6Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    24011.0×
  7. 7N'DjamenaN’Djaména, Chad
    23810.9×
  8. 8KolkataWest Bengal, India
    23710.8×
  9. 9Abujalow-cost sensorsFCT, Nigeria
    2239.9×
  10. 10Islamabadlow-cost sensorsIslamabad, Pakistan
    2149.3×
  11. 11SalorTashkent Region, Uzbekistan
    1917.5×
  12. 12HyderabadTelangana, India
    1907.4×
  13. 12MumbaiMaharashtra, India
    1907.4×
  14. 14Banja LukaSrpska, Bosnia and Herzegovina
    1826.7×
  15. 15ShenyangLiaoning, China
    1826.6×
  16. 16Karachilow-cost sensorsSindh, Pakistan
    1806.4×
  17. 17TetovoTetovo, North Macedonia
    1786.2×
  18. 18SkopjeGrad Skopje, North Macedonia
    1745.9×
  19. 19ManlleuCatalonia, Spain
    1725.7×
  20. 20NišCentral Serbia, Serbia
    1655.0×
  21. 21SarajevoFederation of B&H, Bosnia and Herzegovina
    1634.8×
  22. 22Lagoslow-cost sensorsLagos, Nigeria
    1624.7×
  23. 23DushanbeDushanbe, Tajikistan
    1594.4×
  24. 24KavadarciKavadarci, North Macedonia
    1584.3×
  25. 25AlgiersAlgiers, Algeria
    1574.3×
  26. 26YangonYangon, Myanmar
    1554.1×
  27. 27Khlong LuangPathum Thani, Thailand
    1523.8×
  28. 28GuangzhouGuangdong, China
    1523.8×
  29. 29BitolaBitola, North Macedonia
    1473.6×
  30. 30BelgradeCentral Serbia, Serbia
    1473.6×
  31. 30CapannoriTuscany, Italy
    1473.6×
  32. 32Samut SakhonSamut Sakhon, Thailand
    1453.5×
  33. 33Ciudad Benito JuárezNuevo León, Mexico
    1433.5×
  34. 34Kampalalow-cost sensorsCentral Region, Uganda
    1413.4×
  35. 35IlindenIlinden, North Macedonia
    1393.4×
  36. 36DejCluj County, Romania
    1383.4×
  37. 37Kathmandulow-cost sensorsBagmati Province, Nepal
    1383.4×
  38. 38Mueang NonthaburiNonthaburi, Thailand
    1373.4×
  39. 39JakartaJakarta, Indonesia
    1353.3×
  40. 40Spišská Nová VesKošice Region, Slovakia
    1333.2×
  41. 41Tuen MunTuen Mun, Hong Kong
    1293.1×
  42. 42Nong KhaemBangkok, Thailand
    1263.0×
  43. 43MurciaMurcia, Spain
    1253.0×
  44. 44ChennaiTamil Nadu, India
    1253.0×
  45. 45Nakhon PathomNakhon Pathom, Thailand
    1243.0×
  46. 46VelesVeles, North Macedonia
    1212.9×
  47. 47KochaniKochani, North Macedonia
    1172.8×
  48. 48BangkokBangkok, Thailand
    1172.8×
  49. 49VolosThessaly, Greece
    1162.8×
  50. 50Victoria de DurangoDurango, Mexico
    1142.7×
  51. 51AlessandriaPiedmont, Italy
    1122.7×
  52. 52AvignonProvence-Alpes-Côte d'Azur, France
    1112.6×
  53. 52BeneventoCampania, Italy
    1112.6×
  54. 54JeddahMecca Region, Saudi Arabia
    1072.5×
  55. 55BakersfieldCalifornia, United States
    1062.5×
  56. 56Mollet del VallèsCatalonia, Spain
    1062.5×
  57. 56TijuanaBaja California, Mexico
    1062.5×
  58. 58Tin Shui WaiYuen Long, Hong Kong
    1052.5×
  59. 59TurlockCalifornia, United States
    1002.4×
  60. 60SallanchesAuvergne-Rhône-Alpes, France
    992.3×
  61. 61OviedoAsturias, Spain
    982.3×
  62. 61MexicaliBaja California, Mexico
    982.3×
  63. 63MercedCalifornia, United States
    982.3×
  64. 64Samut PrakanSamut Prakan, Thailand
    972.3×
  65. 65Phra PradaengSamut Prakan, Thailand
    962.2×
  66. 66BailénAndalusia, Spain
    962.2×
  67. 67Santa CatarinaNuevo León, Mexico
    962.2×
  68. 68SamaAsturias, Spain
    962.2×
  69. 69BeijingBeijing, China
    962.2×
  70. 70ThessaloníkiCentral Macedonia, Greece
    952.2×
  71. 71Bang Bo DistrictSamut Prakan, Thailand
    942.2×
  72. 72HanfordCalifornia, United States
    932.1×
  73. 73TorreviejaValencia, Spain
    932.1×
  74. 74PristinaPristina, Kosovo
    922.1×
  75. 75Ciudad RealCastille-La Mancha, Spain
    912.0×
  76. 75MinatitlánVeracruz, Mexico
    912.0×
  77. 75ModestoCalifornia, United States
    912.0×
  78. 78TurinPiedmont, Italy
    912.0×
  79. 79VisaliaCalifornia, United States
    902.0×
  80. 80ValdemoroMadrid, Spain
    902.0×
  81. 81Ciudad ApodacaNuevo León, Mexico
    892.0×
  82. 82JesiThe Marches, Italy
    892.0×
  83. 83TarbesOccitanie, France
    881.9×
  84. 84AthensAttica, Greece
    881.9×
  85. 84Wan ChaiWan Chai, Hong Kong
    881.9×
  86. 84FresnoCalifornia, United States
    881.9×
  87. 87CartagenaMurcia, Spain
    861.9×
  88. 87Ciudad JuárezChihuahua, Mexico
    861.9×
  89. 89MeylanAuvergne-Rhône-Alpes, France
    851.8×
  90. 89Jurupa ValleyCalifornia, United States
    851.8×
  91. 91Lomitalow-cost sensorsCalifornia, United States
    851.8×
  92. 92GardanneProvence-Alpes-Côte d'Azur, France
    851.8×
  93. 93Ciudad General EscobedoNuevo León, Mexico
    841.8×
  94. 94AricaArica y Parinacota Region, Chile
    831.8×
  95. 94MonterreyNuevo León, Mexico
    831.8×
  96. 96LeónCastille and León, Spain
    831.8×
  97. 97LourdesOccitanie, France
    831.7×
  98. 97San DiegoCalifornia, United States
    831.7×
  99. 99PátraWest Greece, Greece
    821.7×
  100. 99SevillaAndalusia, Spain
    821.7×
  101. 99AnconaThe Marches, Italy
    821.7×
  102. 102Botevgradlow-cost sensorsSofia, Bulgaria
    821.7×
  103. 102Carsonlow-cost sensorsCalifornia, United States
    821.7×
  104. 104Tanushimarumachi-toyokiFukuoka, Japan
    821.7×
  105. 105GranadaAndalusia, Spain
    821.7×
  106. 106GrenobleAuvergne-Rhône-Alpes, France
    821.7×
  107. 107MóstolesMadrid, Spain
    821.7×
  108. 108MontbéliardBourgogne-Franche-Comté, France
    811.7×
  109. 109PrešovPrešov Region, Slovakia
    811.7×
  110. 109San Andrés TuxtlaVeracruz, Mexico
    811.7×
  111. 111MaderaCalifornia, United States
    811.7×
  112. 111Torrancelow-cost sensorsCalifornia, United States
    811.7×
  113. 111BadgerAlaska, United States
    811.7×
  114. 114Mong KokYau Tsim Mong District, Hong Kong
    801.7×
  115. 115Cadereyta JiménezNuevo León, Mexico
    801.6×
  116. 116CosladaMadrid, Spain
    791.6×
  117. 117Collado-VillalbaMadrid, Spain
    791.6×
  118. 118LleidaCatalonia, Spain
    791.6×
  119. 118Falconara MarittimaThe Marches, Italy
    791.6×
  120. 120MadridMadrid, Spain
    781.6×
  121. 120CalexicoCalifornia, United States
    781.6×
  122. 122OurenseGalicia, Spain
    781.6×
  123. 122Chula VistaCalifornia, United States
    781.6×
  124. 124TrentoTrentino-Alto Adige, Italy
    781.6×
  125. 124RoveretoTrentino-Alto Adige, Italy
    781.6×
  126. 126KošiceKošice Region, Slovakia
    781.6×
  127. 126BolzanoTrentino-Alto Adige, Italy
    781.6×
  128. 128Sha TinSha Tin, Hong Kong
    771.6×
  129. 128ComptonCalifornia, United States
    771.6×
  130. 130Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    771.5×
  131. 131BakuBaki, Azerbaijan
    771.5×
  132. 131LyonAuvergne-Rhône-Alpes, France
    771.5×
  133. 133KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    771.5×
  134. 133CuencaCastille-La Mancha, Spain
    771.5×
  135. 135StocktonCalifornia, United States
    771.5×
  136. 136Tai PoTai Po, Hong Kong
    771.5×
  137. 136JaénAndalusia, Spain
    771.5×
  138. 138Cluj-NapocaCluj County, Romania
    761.5×
  139. 138SantiagoSantiago Metropolitan, Chile
    761.5×
  140. 138TlaquepaqueJalisco, Mexico
    761.5×
  141. 141ClovisCalifornia, United States
    761.5×
  142. 142Clermont-FerrandAuvergne-Rhône-Alpes, France
    761.5×
  143. 142WoodlandCalifornia, United States
    761.5×
  144. 144Ceglie MessapicaApulia, Italy
    751.5×
  145. 145AsprópyrgosAttica, Greece
    751.5×
  146. 145Hawthornelow-cost sensorsCalifornia, United States
    751.5×
  147. 147GrazStyria, Austria
    751.5×
  148. 148Şabāḩ as SālimMubārak al Kabīr, Kuwait
    751.5×
  149. 148NacimientoBiobio, Chile
    751.5×
  150. 148RiversideCalifornia, United States
    751.5×
  151. 151ChambéryAuvergne-Rhône-Alpes, France
    741.4×
  152. 151AnaheimCalifornia, United States
    741.4×
  153. 153Puente AltoSantiago Metropolitan, Chile
    741.4×
  154. 154Tsuen WanTsuen Wan, Hong Kong
    741.4×
  155. 154MeyzieuAuvergne-Rhône-Alpes, France
    741.4×
  156. 154CuranilahueBiobio, Chile
    741.4×
  157. 157Sham Shui PoSham Shui Po District, Hong Kong
    741.4×
  158. 157NogalesSonora, Mexico
    741.4×
  159. 159CórdobaAndalusia, Spain
    741.4×
  160. 159WolfsbergCarinthia, Austria
    741.4×
  161. 161NogalesArizona, United States
    741.4×
  162. 162Chalon-sur-SaôneBourgogne-Franche-Comté, France
    731.4×
  163. 162ButteMontana, United States
    731.4×
  164. 164HumennéPrešov Region, Slovakia
    731.4×
  165. 164CorcoranCalifornia, United States
    731.4×
  166. 166ValenceAuvergne-Rhône-Alpes, France
    731.4×
  167. 166GijónAsturias, Spain
    731.4×
  168. 168ChillánÑuble, Chile
    731.4×
  169. 169Kwai ChungKwai Tsing District, Hong Kong
    721.4×
  170. 169FanlingNorth District, Hong Kong
    721.4×
  171. 169Zacatepec de HidalgoMorelos, Mexico
    721.4×
  172. 169Long BeachCalifornia, United States
    721.4×
  173. 173SalernoCampania, Italy
    721.4×
  174. 173MantecaCalifornia, United States
    721.4×
  175. 175KigaliKigali, Rwanda
    721.4×
  176. 175GivorsAuvergne-Rhône-Alpes, France
    721.4×
  177. 175RužomberokŽilina Region, Slovakia
    721.4×
  178. 175NaplesCampania, Italy
    721.4×
  179. 175TolucaMéxico, Mexico
    721.4×
  180. 180ArlesProvence-Alpes-Côte d'Azur, France
    721.4×
  181. 181NîmesOccitanie, France
    721.3×
  182. 182MiyakonojōMiyazaki, Japan
    711.3×
  183. 182BurbankCalifornia, United States
    711.3×
  184. 184HigashigōSaga, Japan
    711.3×
  185. 185Sau Mau PingKwun Tong District, Hong Kong
    711.3×
  186. 186CalahorraLa Rioja, Spain
    711.3×
  187. 186San CarlosÑuble, Chile
    711.3×
  188. 186FontanaCalifornia, United States
    711.3×
  189. 186PortervilleCalifornia, United States
    711.3×
  190. 186Las VegasNevada, United States
    711.3×
  191. 191Addis AbabaAddis Ababa, Ethiopia
    711.3×
  192. 191Haskovolow-cost sensorsHaskovo, Bulgaria
    711.3×
  193. 191Los ÁngelesBiobio, Chile
    711.3×
  194. 194Almatylow-cost sensorsAlmaty, Kazakhstan
    701.3×
  195. 194MontpellierOccitanie, France
    701.3×
  196. 194RancaguaO'Higgins Region, Chile
    701.3×
  197. 194El CajonCalifornia, United States
    701.3×
  198. 194Yuba CityCalifornia, United States
    701.3×
  199. 194MillcreekUtah, United States
    701.3×
  200. 200KumamotoKumamoto, Japan
    701.3×

Top 200 of 1,941 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 27, 2023, smogrank.com/history/2023-12-27 (accessed 2 Oct 2026).

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