SmogRank / History / December 18, 2023

Most polluted cities on December 18, 2023

1,856 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 224.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 18, 2023. All episodes.

← Lahore 224.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for December 18, 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
    29914.9×
  2. 2KolkataWest Bengal, India
    26412.6×
  3. 2Banja LukaSrpska, Bosnia and Herzegovina
    26412.6×
  4. 4DelhiDelhi, India
    25311.9×
  5. 5Dhakalow-cost sensorsDhaka Division, Bangladesh
    25011.7×
  6. 6SarajevoFederation of B&H, Bosnia and Herzegovina
    2088.9×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    1978.1×
  8. 8TetovoTetovo, North Macedonia
    1967.9×
  9. 8Almatylow-cost sensorsAlmaty, Kazakhstan
    1967.9×
  10. 10N'DjamenaN’Djaména, Chad
    1897.3×
  11. 11HyderabadTelangana, India
    1846.9×
  12. 12Lagoslow-cost sensorsLagos, Nigeria
    1846.8×
  13. 13Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1826.7×
  14. 14CapannoriTuscany, Italy
    1766.1×
  15. 15BelgradeCentral Serbia, Serbia
    1756.0×
  16. 16NišCentral Serbia, Serbia
    1745.9×
  17. 17KavadarciKavadarci, North Macedonia
    1715.6×
  18. 18VelesVeles, North Macedonia
    1685.3×
  19. 19BitolaBitola, North Macedonia
    1685.3×
  20. 20ShenyangLiaoning, China
    1655.0×
  21. 21ManlleuCatalonia, Spain
    1624.7×
  22. 22MumbaiMaharashtra, India
    1614.7×
  23. 23TlaquepaqueJalisco, Mexico
    1604.5×
  24. 24SallanchesAuvergne-Rhône-Alpes, France
    1594.5×
  25. 25Ciudad Benito JuárezNuevo León, Mexico
    1594.5×
  26. 26SkopjeGrad Skopje, North Macedonia
    1594.4×
  27. 27BeijingBeijing, China
    1584.3×
  28. 28Novi SadVojvodina, Serbia
    1574.3×
  29. 29Victoria de DurangoDurango, Mexico
    1564.2×
  30. 30Karachilow-cost sensorsSindh, Pakistan
    1554.1×
  31. 31ChennaiTamil Nadu, India
    1523.8×
  32. 32Kathmandulow-cost sensorsBagmati Province, Nepal
    1513.7×
  33. 33IlindenIlinden, North Macedonia
    1513.7×
  34. 34HanoiHanoi, Vietnam
    1453.6×
  35. 35GivorsAuvergne-Rhône-Alpes, France
    1453.6×
  36. 36TurinPiedmont, Italy
    1423.5×
  37. 37Abujalow-cost sensorsFCT, Nigeria
    1383.4×
  38. 38Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    1353.3×
  39. 39AlessandriaPiedmont, Italy
    1333.2×
  40. 40Botevgradlow-cost sensorsSofia, Bulgaria
    1333.2×
  41. 41LleidaCatalonia, Spain
    1293.1×
  42. 42DejCluj County, Romania
    1263.0×
  43. 43HanfordCalifornia, United States
    1253.0×
  44. 44ToulouseOccitanie, France
    1233.0×
  45. 45LyonAuvergne-Rhône-Alpes, France
    1212.9×
  46. 46Cluj-NapocaCluj County, Romania
    1202.9×
  47. 47BeneventoCampania, Italy
    1182.8×
  48. 48DushanbeDushanbe, Tajikistan
    1172.8×
  49. 49Samut SakhonSamut Sakhon, Thailand
    1162.8×
  50. 50Haskovolow-cost sensorsHaskovo, Bulgaria
    1162.8×
  51. 51HandlováTrenčín Region, Slovakia
    1162.8×
  52. 52Kampalalow-cost sensorsCentral Region, Uganda
    1152.7×
  53. 53MeyzieuAuvergne-Rhône-Alpes, France
    1122.7×
  54. 53FresnoCalifornia, United States
    1122.7×
  55. 55PardubicePardubice Region, Czechia
    1112.6×
  56. 56CairoCairo, Egypt
    1102.6×
  57. 57CoyhaiqueAysén, Chile
    1092.6×
  58. 58GrazStyria, Austria
    1072.5×
  59. 59České BudějoviceSouth Bohemian Region, Czechia
    1072.5×
  60. 60GardanneProvence-Alpes-Côte d'Azur, France
    1042.4×
  61. 61San Francisco TlalcilalcalpanMéxico, Mexico
    1022.4×
  62. 62NogalesSonora, Mexico
    1012.4×
  63. 63KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1012.4×
  64. 64TolucaMéxico, Mexico
    992.3×
  65. 65Zacatepec de HidalgoMorelos, Mexico
    992.3×
  66. 66VisaliaCalifornia, United States
    992.3×
  67. 67MonterreyNuevo León, Mexico
    972.3×
  68. 68Tuen MunTuen Mun, Hong Kong
    972.3×
  69. 69KochaniKochani, North Macedonia
    972.2×
  70. 70Mladá BoleslavCentral Bohemia, Czechia
    962.2×
  71. 71NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    962.2×
  72. 71ValenceAuvergne-Rhône-Alpes, France
    962.2×
  73. 73Ciudad ApodacaNuevo León, Mexico
    962.2×
  74. 74GuadalajaraJalisco, Mexico
    962.2×
  75. 75MillcreekUtah, United States
    952.2×
  76. 76HumennéPrešov Region, Slovakia
    952.2×
  77. 76JakartaJakarta, Indonesia
    952.2×
  78. 78VitrollesProvence-Alpes-Côte d'Azur, France
    952.2×
  79. 78CholulaPuebla, Mexico
    952.2×
  80. 80ZapopanJalisco, Mexico
    932.1×
  81. 81TarbesOccitanie, France
    932.1×
  82. 82ArlesProvence-Alpes-Côte d'Azur, France
    932.1×
  83. 82West JordanUtah, United States
    932.1×
  84. 84Ulan BatorUlaanbaatar, Mongolia
    932.1×
  85. 85TijuanaBaja California, Mexico
    932.1×
  86. 86LormontNew Aquitaine, France
    922.1×
  87. 86DěčínÚstí nad Labem Region, Czechia
    922.1×
  88. 86BakersfieldCalifornia, United States
    922.1×
  89. 89ClovisCalifornia, United States
    922.1×
  90. 90LinzUpper Austria, Austria
    912.1×
  91. 90Fos-sur-MerProvence-Alpes-Côte d'Azur, France
    912.1×
  92. 92OurenseGalicia, Spain
    912.0×
  93. 92MaderaCalifornia, United States
    912.0×
  94. 94Tin Shui WaiYuen Long, Hong Kong
    912.0×
  95. 95IaşiIași County, Romania
    902.0×
  96. 95XàtivaValencia, Spain
    902.0×
  97. 97Wan ChaiWan Chai, Hong Kong
    902.0×
  98. 98Nong KhaemBangkok, Thailand
    902.0×
  99. 99Bourg-en-BresseAuvergne-Rhône-Alpes, France
    902.0×
  100. 99Cadereyta JiménezNuevo León, Mexico
    902.0×
  101. 101MiskolcBorsod-Abaúj-Zemplén, Hungary
    902.0×
  102. 101MexicaliBaja California, Mexico
    902.0×
  103. 103ValdemoroMadrid, Spain
    892.0×
  104. 104KigaliKigali, Rwanda
    892.0×
  105. 105MontpellierOccitanie, France
    892.0×
  106. 106Ciudad General EscobedoNuevo León, Mexico
    881.9×
  107. 107Tai PoTai Po, Hong Kong
    881.9×
  108. 107AvignonProvence-Alpes-Côte d'Azur, France
    881.9×
  109. 109Spišská Nová VesKošice Region, Slovakia
    881.9×
  110. 109NogalesArizona, United States
    881.9×
  111. 111Clermont-FerrandAuvergne-Rhône-Alpes, France
    881.9×
  112. 112Banská BystricaBanská Bystrica Region, Slovakia
    871.9×
  113. 112MercedCalifornia, United States
    871.9×
  114. 114YangonYangon, Myanmar
    871.9×
  115. 115Salt Lake CityUtah, United States
    871.9×
  116. 116Gabrovolow-cost sensorsGabrovo, Bulgaria
    861.8×
  117. 117VigoGalicia, Spain
    851.8×
  118. 117EugeneOregon, United States
    851.8×
  119. 119ToulonProvence-Alpes-Côte d'Azur, France
    851.8×
  120. 120Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    851.8×
  121. 120Puerto VarasLos Lagos Region, Chile
    851.8×
  122. 122Hradec KrálovéHradec Králové Region, Czechia
    841.8×
  123. 122BountifulUtah, United States
    841.8×
  124. 124Mueang NonthaburiNonthaburi, Thailand
    841.8×
  125. 125EsztergomKomárom-Esztergom, Hungary
    831.8×
  126. 126NaplesCampania, Italy
    831.8×
  127. 127BrnoSouth Moravian, Czechia
    831.8×
  128. 128Santa Cruz de TenerifeCanary Islands, Spain
    831.7×
  129. 129Khlong LuangPathum Thani, Thailand
    831.7×
  130. 130Nakhon PathomNakhon Pathom, Thailand
    821.7×
  131. 130NîmesOccitanie, France
    821.7×
  132. 130LeónCastille and León, Spain
    821.7×
  133. 130CosladaMadrid, Spain
    821.7×
  134. 134BratislavaBratislava Region, Slovakia
    821.7×
  135. 135GyőrGyőr-Moson-Sopron, Hungary
    821.7×
  136. 136Mollet del VallèsCatalonia, Spain
    821.7×
  137. 137BailénAndalusia, Spain
    821.7×
  138. 138PátraWest Greece, Greece
    811.7×
  139. 138HeilbronnBaden-Wurttemberg, Germany
    811.7×
  140. 138Ciudad JuárezChihuahua, Mexico
    811.7×
  141. 141CastresOccitanie, France
    811.7×
  142. 141PřerovOlomouc Region, Czechia
    811.7×
  143. 141OremUtah, United States
    811.7×
  144. 144Karlova VesBratislava Region, Slovakia
    811.7×
  145. 144LitvínovÚstí nad Labem Region, Czechia
    811.7×
  146. 144CelayaGuanajuato, Mexico
    811.7×
  147. 147Addis AbabaAddis Ababa, Ethiopia
    811.7×
  148. 147ArrecifeCanary Islands, Spain
    811.7×
  149. 149KošiceKošice Region, Slovakia
    801.6×
  150. 150GuangzhouGuangdong, China
    801.6×
  151. 150WaregemFlanders, Belgium
    801.6×
  152. 152LugoGalicia, Spain
    801.6×
  153. 152BarcelonaCatalonia, Spain
    801.6×
  154. 154GrenobleAuvergne-Rhône-Alpes, France
    801.6×
  155. 154JesiThe Marches, Italy
    801.6×
  156. 156ThessaloníkiCentral Macedonia, Greece
    791.6×
  157. 156TurlockCalifornia, United States
    791.6×
  158. 158LudwigsburgBaden-Wurttemberg, Germany
    791.6×
  159. 158SamaAsturias, Spain
    791.6×
  160. 160TepliceÚstí nad Labem Region, Czechia
    791.6×
  161. 161AnsbachBavaria, Germany
    781.6×
  162. 162LourdesOccitanie, France
    781.6×
  163. 163WormsRheinland-Pfalz, Germany
    781.6×
  164. 164San Tung Chung HangIslands, Hong Kong
    781.6×
  165. 164AmoraSetúbal, Portugal
    781.6×
  166. 164ModestoCalifornia, United States
    781.6×
  167. 167IzegemFlanders, Belgium
    781.6×
  168. 167SaarbrückenSaarland, Germany
    781.6×
  169. 167FréjusProvence-Alpes-Côte d'Azur, France
    781.6×
  170. 167ChâteaurouxCentre-Val de Loire, France
    781.6×
  171. 167PrievidzaTrenčín Region, Slovakia
    781.6×
  172. 172ForbachGrand Est, France
    771.6×
  173. 173MödlingLower Austria, Austria
    771.5×
  174. 173CoburgBavaria, Germany
    771.5×
  175. 175BurghausenBavaria, Germany
    771.5×
  176. 176BordeauxNew Aquitaine, France
    771.5×
  177. 176MagnaUtah, United States
    771.5×
  178. 178VolosThessaly, Greece
    771.5×
  179. 178TraunUpper Austria, Austria
    771.5×
  180. 178KehlBaden-Wurttemberg, Germany
    771.5×
  181. 181RoseburgOregon, United States
    771.5×
  182. 182La OrotavaCanary Islands, Spain
    761.5×
  183. 182Falconara MarittimaThe Marches, Italy
    761.5×
  184. 184Gasteiz / VitoriaBasque Country, Spain
    761.5×
  185. 185BensheimHesse, Germany
    761.5×
  186. 185ChambéryAuvergne-Rhône-Alpes, France
    761.5×
  187. 185AnconaThe Marches, Italy
    761.5×
  188. 188SulphurLouisiana, United States
    761.5×
  189. 189PérigueuxNew Aquitaine, France
    751.5×
  190. 189ŽideniceSouth Moravian, Czechia
    751.5×
  191. 191Mong KokYau Tsim Mong District, Hong Kong
    751.5×
  192. 191ZvolenBanská Bystrica Region, Slovakia
    751.5×
  193. 191Spanish ForkUtah, United States
    751.5×
  194. 194BangkokBangkok, Thailand
    751.5×
  195. 194StuttgartBaden-Wurttemberg, Germany
    751.5×
  196. 194MeylanAuvergne-Rhône-Alpes, France
    751.5×
  197. 194Puerto MonttLos Lagos Region, Chile
    751.5×
  198. 198WürzburgBavaria, Germany
    741.4×
  199. 198FilderstadtBaden-Wurttemberg, Germany
    741.4×
  200. 200San IsidroCanary Islands, Spain
    741.4×

Top 200 of 1,856 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

Use this board

SmogRank, most polluted cities, PM2.5, December 18, 2023, smogrank.com/history/2023-12-18 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.