SmogRank / History / December 28, 2023

Most polluted cities on December 28, 2023

1,933 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 263.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 28, 2023. All episodes.

← Lahore 263.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for December 28, 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
    37617.5×
  2. 2DelhiDelhi, India
    31015.3×
  3. 3Ulan BatorUlaanbaatar, Mongolia
    30615.2×
  4. 4KolkataWest Bengal, India
    24811.5×
  5. 5Abujalow-cost sensorsFCT, Nigeria
    24511.3×
  6. 6N'DjamenaN’Djaména, Chad
    24011.0×
  7. 7Dhakalow-cost sensorsDhaka Division, Bangladesh
    23910.9×
  8. 8MumbaiMaharashtra, India
    2219.7×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    2109.0×
  10. 10Banja LukaSrpska, Bosnia and Herzegovina
    2098.9×
  11. 11Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1988.2×
  12. 12NišCentral Serbia, Serbia
    1907.4×
  13. 13SarajevoFederation of B&H, Bosnia and Herzegovina
    1897.3×
  14. 14TetovoTetovo, North Macedonia
    1887.2×
  15. 15HyderabadTelangana, India
    1867.1×
  16. 16ShenyangLiaoning, China
    1846.8×
  17. 17Karachilow-cost sensorsSindh, Pakistan
    1756.0×
  18. 18ManlleuCatalonia, Spain
    1745.9×
  19. 19Lagoslow-cost sensorsLagos, Nigeria
    1735.8×
  20. 20SkopjeGrad Skopje, North Macedonia
    1695.4×
  21. 21VelesVeles, North Macedonia
    1624.8×
  22. 22KavadarciKavadarci, North Macedonia
    1604.6×
  23. 23Kampalalow-cost sensorsCentral Region, Uganda
    1594.5×
  24. 24Spišská Nová VesKošice Region, Slovakia
    1584.4×
  25. 25BitolaBitola, North Macedonia
    1564.2×
  26. 26PristinaPristina, Kosovo
    1564.2×
  27. 27Samut SakhonSamut Sakhon, Thailand
    1554.1×
  28. 28BelgradeCentral Serbia, Serbia
    1533.9×
  29. 29MurciaMurcia, Spain
    1533.9×
  30. 30DejCluj County, Romania
    1523.8×
  31. 31CapannoriTuscany, Italy
    1493.7×
  32. 32GuangzhouGuangdong, China
    1483.6×
  33. 32BeneventoCampania, Italy
    1483.6×
  34. 34BadgerAlaska, United States
    1483.6×
  35. 35Kathmandulow-cost sensorsBagmati Province, Nepal
    1463.6×
  36. 36KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1423.5×
  37. 37SalorTashkent Region, Uzbekistan
    1393.4×
  38. 38Nakhon PathomNakhon Pathom, Thailand
    1343.3×
  39. 38Tuen MunTuen Mun, Hong Kong
    1343.3×
  40. 40Mueang NonthaburiNonthaburi, Thailand
    1343.3×
  41. 41IlindenIlinden, North Macedonia
    1343.2×
  42. 42Novi SadVojvodina, Serbia
    1323.2×
  43. 43AlgiersAlgiers, Algeria
    1293.1×
  44. 44Victoria de DurangoDurango, Mexico
    1273.1×
  45. 45Jurupa ValleyCalifornia, United States
    1263.0×
  46. 46ValdemoroMadrid, Spain
    1222.9×
  47. 47AlessandriaPiedmont, Italy
    1212.9×
  48. 48Nong KhaemBangkok, Thailand
    1212.9×
  49. 49RužomberokŽilina Region, Slovakia
    1192.9×
  50. 50JakartaJakarta, Indonesia
    1192.8×
  51. 51ThessaloníkiCentral Macedonia, Greece
    1182.8×
  52. 52AthensAttica, Greece
    1172.8×
  53. 53AvignonProvence-Alpes-Côte d'Azur, France
    1172.8×
  54. 54BangkokBangkok, Thailand
    1162.8×
  55. 55Tin Shui WaiYuen Long, Hong Kong
    1152.7×
  56. 56RiversideCalifornia, United States
    1142.7×
  57. 57TurinPiedmont, Italy
    1132.7×
  58. 58GrenobleAuvergne-Rhône-Alpes, France
    1122.7×
  59. 59MexicaliBaja California, Mexico
    1122.7×
  60. 60LleidaCatalonia, Spain
    1112.6×
  61. 61Mollet del VallèsCatalonia, Spain
    1092.6×
  62. 62TarbesOccitanie, France
    1082.6×
  63. 63Cluj-NapocaCluj County, Romania
    1062.5×
  64. 64Wan ChaiWan Chai, Hong Kong
    1062.5×
  65. 65VolosThessaly, Greece
    1062.5×
  66. 66TorreviejaValencia, Spain
    1052.5×
  67. 66BailénAndalusia, Spain
    1052.5×
  68. 66LourdesOccitanie, France
    1052.5×
  69. 69ChennaiTamil Nadu, India
    1042.4×
  70. 70Tsuen WanTsuen Wan, Hong Kong
    1032.4×
  71. 71Khlong LuangPathum Thani, Thailand
    1032.4×
  72. 72MeylanAuvergne-Rhône-Alpes, France
    1022.4×
  73. 73RuseRuse, Bulgaria
    1012.4×
  74. 74Phra PradaengSamut Prakan, Thailand
    992.3×
  75. 75Botevgradlow-cost sensorsSofia, Bulgaria
    982.3×
  76. 76KochaniKochani, North Macedonia
    982.3×
  77. 77CraiovaDolj, Romania
    972.3×
  78. 78Mong KokYau Tsim Mong District, Hong Kong
    972.2×
  79. 78FontanaCalifornia, United States
    972.2×
  80. 80CasertaCampania, Italy
    962.2×
  81. 81MiskolcBorsod-Abaúj-Zemplén, Hungary
    962.2×
  82. 81Samut PrakanSamut Prakan, Thailand
    962.2×
  83. 81CartagenaMurcia, Spain
    962.2×
  84. 84Kwai ChungKwai Tsing District, Hong Kong
    952.2×
  85. 84TijuanaBaja California, Mexico
    952.2×
  86. 86MóstolesMadrid, Spain
    942.1×
  87. 86NaplesCampania, Italy
    942.1×
  88. 88AnaheimCalifornia, United States
    932.1×
  89. 89BakersfieldCalifornia, United States
    922.1×
  90. 90CuencaCastille-La Mancha, Spain
    912.0×
  91. 91Sha TinSha Tin, Hong Kong
    912.0×
  92. 92Haskovolow-cost sensorsHaskovo, Bulgaria
    902.0×
  93. 92Collado-VillalbaMadrid, Spain
    902.0×
  94. 94ŽilinaŽilina Region, Slovakia
    902.0×
  95. 95Sham Shui PoSham Shui Po District, Hong Kong
    902.0×
  96. 96KigaliKigali, Rwanda
    892.0×
  97. 96Ciudad RealCastille-La Mancha, Spain
    892.0×
  98. 98PátraWest Greece, Greece
    881.9×
  99. 98Tai PoTai Po, Hong Kong
    881.9×
  100. 98VictoriaCentral and Western, Hong Kong
    881.9×
  101. 98CosladaMadrid, Spain
    881.9×
  102. 98Ciudad Benito JuárezNuevo León, Mexico
    881.9×
  103. 103PiraeusAttica, Greece
    871.9×
  104. 104FréjusProvence-Alpes-Côte d'Azur, France
    871.9×
  105. 105Gabrovolow-cost sensorsGabrovo, Bulgaria
    871.9×
  106. 105Ciudad JuárezChihuahua, Mexico
    871.9×
  107. 107GranadaAndalusia, Spain
    871.9×
  108. 108Şabāḩ as SālimMubārak al Kabīr, Kuwait
    861.9×
  109. 108LinzUpper Austria, Austria
    861.9×
  110. 110SevillaAndalusia, Spain
    861.9×
  111. 111IaşiIași County, Romania
    861.8×
  112. 112MadridMadrid, Spain
    851.8×
  113. 112Zacatepec de HidalgoMorelos, Mexico
    851.8×
  114. 114MontbéliardBourgogne-Franche-Comté, France
    851.8×
  115. 115West JordanUtah, United States
    841.8×
  116. 116HandlováTrenčín Region, Slovakia
    841.8×
  117. 117MillcreekUtah, United States
    841.8×
  118. 118JesiThe Marches, Italy
    831.8×
  119. 119CórdobaAndalusia, Spain
    831.8×
  120. 120Addis AbabaAddis Ababa, Ethiopia
    831.7×
  121. 120HanfordCalifornia, United States
    831.7×
  122. 122KošiceKošice Region, Slovakia
    831.7×
  123. 123YangonYangon, Myanmar
    821.7×
  124. 123TraunUpper Austria, Austria
    821.7×
  125. 125GuadalajaraJalisco, Mexico
    821.7×
  126. 126ChambéryAuvergne-Rhône-Alpes, France
    821.7×
  127. 127TolucaMéxico, Mexico
    821.7×
  128. 128Sau Mau PingKwun Tong District, Hong Kong
    821.7×
  129. 128OurenseGalicia, Spain
    821.7×
  130. 130WolfsbergCarinthia, Austria
    811.7×
  131. 131GrazStyria, Austria
    801.7×
  132. 131San Francisco TlalcilalcalpanMéxico, Mexico
    801.7×
  133. 133FanlingNorth District, Hong Kong
    801.7×
  134. 134ZapopanJalisco, Mexico
    801.6×
  135. 135CalahorraLa Rioja, Spain
    801.6×
  136. 135LiberpolisCounty of Osijek-Baranja, Croatia
    801.6×
  137. 137TepliceÚstí nad Labem Region, Czechia
    801.6×
  138. 138AlbertvilleAuvergne-Rhône-Alpes, France
    791.6×
  139. 138SamaAsturias, Spain
    791.6×
  140. 140TocopillaAntofagasta, Chile
    791.6×
  141. 140FairbanksAlaska, United States
    791.6×
  142. 142MiyakonojōMiyazaki, Japan
    791.6×
  143. 143ZvolenBanská Bystrica Region, Slovakia
    781.6×
  144. 144NîmesOccitanie, France
    781.6×
  145. 144ButteMontana, United States
    781.6×
  146. 146JaénAndalusia, Spain
    781.6×
  147. 146Ceglie MessapicaApulia, Italy
    781.6×
  148. 146Los AngelesCalifornia, United States
    781.6×
  149. 149AsprópyrgosAttica, Greece
    771.6×
  150. 149SallanchesAuvergne-Rhône-Alpes, France
    771.6×
  151. 151MonacoMunicipality of Monaco, Monaco
    771.5×
  152. 151NogalesSonora, Mexico
    771.5×
  153. 153DushanbeDushanbe, Tajikistan
    771.5×
  154. 154Carsonlow-cost sensorsCalifornia, United States
    771.5×
  155. 155TrnavaTrnava Region, Slovakia
    771.5×
  156. 155OlomoucOlomouc Region, Czechia
    771.5×
  157. 155NacimientoBiobio, Chile
    771.5×
  158. 155Hawthornelow-cost sensorsCalifornia, United States
    771.5×
  159. 155San DiegoCalifornia, United States
    771.5×
  160. 160BarcelonaCatalonia, Spain
    771.5×
  161. 161PrievidzaTrenčín Region, Slovakia
    761.5×
  162. 162OviedoAsturias, Spain
    761.5×
  163. 162AricaArica y Parinacota Region, Chile
    761.5×
  164. 164CelayaGuanajuato, Mexico
    761.5×
  165. 165PhoenixArizona, United States
    761.5×
  166. 165San Salvador TizatlalliMéxico, Mexico
    761.5×
  167. 167ValenciaValencia, Spain
    751.5×
  168. 167AnsfeldenUpper Austria, Austria
    751.5×
  169. 167SantiagoSantiago Metropolitan, Chile
    751.5×
  170. 170JeddahMecca Region, Saudi Arabia
    751.5×
  171. 170KlosterneuburgLower Austria, Austria
    751.5×
  172. 170ComptonCalifornia, United States
    751.5×
  173. 173ToledoCastille-La Mancha, Spain
    751.5×
  174. 173Banská BystricaBanská Bystrica Region, Slovakia
    751.5×
  175. 175PartizánskeTrenčín Region, Slovakia
    751.5×
  176. 175BolzanoTrentino-Alto Adige, Italy
    751.5×
  177. 175SaguenayQuebec, Canada
    751.5×
  178. 178Salt Lake CityUtah, United States
    751.5×
  179. 179CorcoranCalifornia, United States
    741.4×
  180. 180PerpignanOccitanie, France
    741.4×
  181. 180GyőrGyőr-Moson-Sopron, Hungary
    741.4×
  182. 182YanagawaFukuoka, Japan
    741.4×
  183. 182HavířovMoravian-Silesian Region, Czechia
    741.4×
  184. 184BurbankCalifornia, United States
    741.4×
  185. 184HigashigōSaga, Japan
    741.4×
  186. 186ŌmutaFukuoka, Japan
    741.4×
  187. 186LitvínovÚstí nad Labem Region, Czechia
    741.4×
  188. 186San Martin Texmelucan de LabastidaPuebla, Mexico
    741.4×
  189. 189MontpellierOccitanie, France
    741.4×
  190. 190Hradec KrálovéHradec Králové Region, Czechia
    731.4×
  191. 191ColomboWestern Province, Sri Lanka
    731.4×
  192. 191AlgecirasAndalusia, Spain
    731.4×
  193. 191Inglewoodlow-cost sensorsCalifornia, United States
    731.4×
  194. 194NogalesArizona, United States
    731.4×
  195. 194CalexicoCalifornia, United States
    731.4×
  196. 196Torrejón de ArdozMadrid, Spain
    731.4×
  197. 196Puente AltoSantiago Metropolitan, Chile
    731.4×
  198. 198BucharestBucharest, Romania
    731.4×
  199. 199LunelOccitanie, France
    721.4×
  200. 200Falconara MarittimaThe Marches, Italy
    721.4×

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 28, 2023, smogrank.com/history/2023-12-28 (accessed 2 Oct 2026).

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