SmogRank / History / December 6, 2023

Most polluted cities on December 6, 2023

1,934 cities ranked by their average PM2.5 over the day; the worst was Ramos Arizpe, Mexico, at 385.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 6, 2023. All episodes.

← Ramos Arizpe 385.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 6, 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. 1Ramos ArizpeCoahuila, Mexico
    500+25.7×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    29814.9×
  3. 3CairoCairo, Egypt
    23110.4×
  4. 4DelhiDelhi, India
    2159.3×
  5. 5N'DjamenaN’Djaména, Chad
    2038.5×
  6. 6Ulan BatorUlaanbaatar, Mongolia
    1967.9×
  7. 7Dhakalow-cost sensorsDhaka Division, Bangladesh
    1937.7×
  8. 8KolkataWest Bengal, India
    1806.4×
  9. 9Karachilow-cost sensorsSindh, Pakistan
    1766.1×
  10. 10TetovoTetovo, North Macedonia
    1766.1×
  11. 11Český TěšínMoravian-Silesian Region, Czechia
    1756.0×
  12. 12Islamabadlow-cost sensorsIslamabad, Pakistan
    1725.7×
  13. 13MumbaiMaharashtra, India
    1695.4×
  14. 14Frýdek-MístekMoravian-Silesian Region, Czechia
    1655.1×
  15. 15BitolaBitola, North Macedonia
    1614.7×
  16. 16DejCluj County, Romania
    1614.6×
  17. 17HavířovMoravian-Silesian Region, Czechia
    1604.6×
  18. 18SkopjeGrad Skopje, North Macedonia
    1604.6×
  19. 19BerounCentral Bohemia, Czechia
    1594.4×
  20. 20Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1564.2×
  21. 21IlindenIlinden, North Macedonia
    1564.2×
  22. 22BeijingBeijing, China
    1564.2×
  23. 23WismarMecklenburg-Vorpommern, Germany
    1554.1×
  24. 24BohumínMoravian-Silesian Region, Czechia
    1544.0×
  25. 25LübeckSchleswig-Holstein, Germany
    1533.9×
  26. 25TřinecMoravian-Silesian Region, Czechia
    1533.9×
  27. 27EisenhüttenstadtBrandenburg, Germany
    1533.9×
  28. 28RostockMecklenburg-Vorpommern, Germany
    1523.8×
  29. 29GüstrowMecklenburg-Vorpommern, Germany
    1523.8×
  30. 30KielSchleswig-Holstein, Germany
    1513.7×
  31. 31MartinŽilina Region, Slovakia
    1513.7×
  32. 32LitvínovÚstí nad Labem Region, Czechia
    1493.7×
  33. 33OlomoucOlomouc Region, Czechia
    1483.6×
  34. 34MostÚstí nad Labem Region, Czechia
    1473.6×
  35. 35Frankfurt (Oder)Brandenburg, Germany
    1463.6×
  36. 36KochaniKochani, North Macedonia
    1453.6×
  37. 37KadaňÚstí nad Labem Region, Czechia
    1453.6×
  38. 38OstravaMoravian-Silesian Region, Czechia
    1453.6×
  39. 39TepliceÚstí nad Labem Region, Czechia
    1453.5×
  40. 40DushanbeDushanbe, Tajikistan
    1433.5×
  41. 41ZnojmoSouth Moravian, Czechia
    1403.4×
  42. 42Valašské MeziříčíZlín, Czechia
    1393.4×
  43. 43StralsundMecklenburg-Vorpommern, Germany
    1383.4×
  44. 44PřerovOlomouc Region, Czechia
    1363.3×
  45. 45PrešovPrešov Region, Slovakia
    1363.3×
  46. 46Kathmandulow-cost sensorsBagmati Province, Nepal
    1353.3×
  47. 46ItzehoeSchleswig-Holstein, Germany
    1353.3×
  48. 48ManamaManama, Bahrain
    1343.3×
  49. 49ŽilinaŽilina Region, Slovakia
    1333.2×
  50. 50Spišská Nová VesKošice Region, Slovakia
    1323.2×
  51. 51Samut SakhonSamut Sakhon, Thailand
    1303.2×
  52. 52Schwedt (Oder)Brandenburg, Germany
    1303.2×
  53. 53GrazStyria, Austria
    1303.1×
  54. 54KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1293.1×
  55. 55HyderabadTelangana, India
    1283.1×
  56. 56Ústí nad LabemÚstí nad Labem Region, Czechia
    1283.1×
  57. 57EberswaldeBrandenburg, Germany
    1283.1×
  58. 58HamburgHamburg, Germany
    1253.0×
  59. 58ZlínZlín, Czechia
    1253.0×
  60. 60AnsfeldenUpper Austria, Austria
    1243.0×
  61. 61BurgosCastille and León, Spain
    1233.0×
  62. 62JakartaJakarta, Indonesia
    1233.0×
  63. 63SarajevoFederation of B&H, Bosnia and Herzegovina
    1233.0×
  64. 64TraunUpper Austria, Austria
    1212.9×
  65. 65RužomberokŽilina Region, Slovakia
    1202.9×
  66. 66StrausbergBrandenburg, Germany
    1182.8×
  67. 67Abujalow-cost sensorsFCT, Nigeria
    1172.8×
  68. 68ŽideniceSouth Moravian, Czechia
    1172.8×
  69. 69VelesVeles, North Macedonia
    1162.8×
  70. 70DěčínÚstí nad Labem Region, Czechia
    1152.8×
  71. 71Botevgradlow-cost sensorsSofia, Bulgaria
    1152.7×
  72. 72Mladá BoleslavCentral Bohemia, Czechia
    1152.7×
  73. 73PardubicePardubice Region, Czechia
    1142.7×
  74. 74LinzUpper Austria, Austria
    1132.7×
  75. 75Bernau bei BerlinBrandenburg, Germany
    1122.7×
  76. 76České BudějoviceSouth Bohemian Region, Czechia
    1112.6×
  77. 77KroměřížZlín, Czechia
    1102.6×
  78. 78Haskovolow-cost sensorsHaskovo, Bulgaria
    1092.6×
  79. 79SaltilloCoahuila, Mexico
    1082.6×
  80. 80OpavaMoravian-Silesian Region, Czechia
    1082.5×
  81. 80BrnoSouth Moravian, Czechia
    1082.5×
  82. 82Cluj-NapocaCluj County, Romania
    1072.5×
  83. 83Hradec KrálovéHradec Králové Region, Czechia
    1062.5×
  84. 84ShenyangLiaoning, China
    1062.5×
  85. 84KladnoCentral Bohemia, Czechia
    1062.5×
  86. 86Wan ChaiWan Chai, Hong Kong
    1052.5×
  87. 87KlosterneuburgLower Austria, Austria
    1052.5×
  88. 87NeuruppinBrandenburg, Germany
    1052.5×
  89. 89HumennéPrešov Region, Slovakia
    1032.4×
  90. 90Tuen MunTuen Mun, Hong Kong
    1032.4×
  91. 91PassauBavaria, Germany
    1022.4×
  92. 92ManlleuCatalonia, Spain
    1012.4×
  93. 93Nong KhaemBangkok, Thailand
    1002.4×
  94. 93TrenčínTrenčín Region, Slovakia
    1002.4×
  95. 95TurinPiedmont, Italy
    992.3×
  96. 96MödlingLower Austria, Austria
    992.3×
  97. 97Tin Shui WaiYuen Long, Hong Kong
    972.3×
  98. 97PerchtoldsdorfLower Austria, Austria
    972.3×
  99. 99PraguePrague, Czechia
    972.3×
  100. 100WelsUpper Austria, Austria
    962.2×
  101. 101LiberecLiberec Region, Czechia
    962.2×
  102. 102WolfsbergCarinthia, Austria
    962.2×
  103. 103YangonYangon, Myanmar
    962.2×
  104. 103PartizánskeTrenčín Region, Slovakia
    962.2×
  105. 105FlensburgSchleswig-Holstein, Germany
    962.2×
  106. 106BerlinState of Berlin, Germany
    952.2×
  107. 107MiskolcBorsod-Abaúj-Zemplén, Hungary
    952.2×
  108. 108Gabrovolow-cost sensorsGabrovo, Bulgaria
    932.1×
  109. 109AmstettenLower Austria, Austria
    932.1×
  110. 110KavadarciKavadarci, North Macedonia
    932.1×
  111. 111SteyrUpper Austria, Austria
    922.1×
  112. 112Sankt PöltenLower Austria, Austria
    912.1×
  113. 113CapannoriTuscany, Italy
    912.0×
  114. 114Tsuen WanTsuen Wan, Hong Kong
    912.0×
  115. 114NeuenhagenBrandenburg, Germany
    912.0×
  116. 116ViennaVienna, Austria
    902.0×
  117. 116TeltowBrandenburg, Germany
    902.0×
  118. 118TrnavaTrnava Region, Slovakia
    902.0×
  119. 119VictoriaCentral and Western, Hong Kong
    902.0×
  120. 120Tai PoTai Po, Hong Kong
    892.0×
  121. 120Kwai ChungKwai Tsing District, Hong Kong
    892.0×
  122. 122BadenLower Austria, Austria
    881.9×
  123. 123Ciudad Benito JuárezNuevo León, Mexico
    881.9×
  124. 124KaunasKaunas, Lithuania
    881.9×
  125. 124Karlova VesBratislava Region, Slovakia
    881.9×
  126. 126Vranov nad TopľouPrešov Region, Slovakia
    881.9×
  127. 126Klagenfurt am WörtherseeCarinthia, Austria
    881.9×
  128. 128Khlong LuangPathum Thani, Thailand
    871.9×
  129. 128MexicaliBaja California, Mexico
    871.9×
  130. 130YamanashiYamanashi, Japan
    861.9×
  131. 131KigaliKigali, Rwanda
    861.9×
  132. 131BeneventoCampania, Italy
    861.9×
  133. 133Nakhon PathomNakhon Pathom, Thailand
    861.9×
  134. 133Mong KokYau Tsim Mong District, Hong Kong
    861.9×
  135. 135AlessandriaPiedmont, Italy
    851.8×
  136. 136JeddahMecca Region, Saudi Arabia
    851.8×
  137. 136EsztergomKomárom-Esztergom, Hungary
    851.8×
  138. 136NitraNitra Region, Slovakia
    851.8×
  139. 139BelgradeCentral Serbia, Serbia
    851.8×
  140. 140WittenbergeBrandenburg, Germany
    851.8×
  141. 141BangkokBangkok, Thailand
    841.8×
  142. 141Lagoslow-cost sensorsLagos, Nigeria
    841.8×
  143. 143Sha TinSha Tin, Hong Kong
    841.8×
  144. 144SenicaTrnava Region, Slovakia
    831.8×
  145. 144Banská BystricaBanská Bystrica Region, Slovakia
    831.8×
  146. 146SokolovCarlsbad Region, Czechia
    831.8×
  147. 147AntananarivoAnalamanga, Madagascar
    831.7×
  148. 147Mollet del VallèsCatalonia, Spain
    831.7×
  149. 149Sham Shui PoSham Shui Po District, Hong Kong
    831.7×
  150. 149Banja LukaSrpska, Bosnia and Herzegovina
    831.7×
  151. 149Ciudad JuárezChihuahua, Mexico
    831.7×
  152. 149BakersfieldCalifornia, United States
    831.7×
  153. 153MurciaMurcia, Spain
    821.7×
  154. 154KofuYamanashi, Japan
    821.7×
  155. 155Addis AbabaAddis Ababa, Ethiopia
    821.7×
  156. 155Mueang NonthaburiNonthaburi, Thailand
    821.7×
  157. 155KleinmachnowBrandenburg, Germany
    821.7×
  158. 155ZvolenBanská Bystrica Region, Slovakia
    821.7×
  159. 159Sau Mau PingKwun Tong District, Hong Kong
    811.7×
  160. 160FanlingNorth District, Hong Kong
    811.7×
  161. 161FalkenseeBrandenburg, Germany
    801.7×
  162. 162HandlováTrenčín Region, Slovakia
    801.6×
  163. 163Phra PradaengSamut Prakan, Thailand
    801.6×
  164. 163PotsdamBrandenburg, Germany
    801.6×
  165. 165AsahikawaHokkaido, Japan
    801.6×
  166. 165San Salvador TizatlalliMéxico, Mexico
    801.6×
  167. 167GyőrGyőr-Moson-Sopron, Hungary
    791.6×
  168. 167Victoria de DurangoDurango, Mexico
    791.6×
  169. 167Blankenfelde-MahlowBrandenburg, Germany
    791.6×
  170. 170NauenBrandenburg, Germany
    791.6×
  171. 171Hansestadt SalzwedelSaxony-Anhalt, Germany
    791.6×
  172. 172KlaipėdaKlaipėda County, Lithuania
    791.6×
  173. 172NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    791.6×
  174. 172GuangzhouGuangdong, China
    791.6×
  175. 175TijuanaBaja California, Mexico
    791.6×
  176. 176CottbusBrandenburg, Germany
    781.6×
  177. 177La RochelleNew Aquitaine, France
    781.6×
  178. 178BratislavaBratislava Region, Slovakia
    781.6×
  179. 178NaplesCampania, Italy
    781.6×
  180. 178HanfordCalifornia, United States
    781.6×
  181. 181LleidaCatalonia, Spain
    771.6×
  182. 182PilsenPlzeň Region, Czechia
    771.5×
  183. 182HigashigōSaga, Japan
    771.5×
  184. 184OurenseGalicia, Spain
    761.5×
  185. 185LormontNew Aquitaine, France
    761.5×
  186. 186BremerhavenBremen, Germany
    761.5×
  187. 187Puerto VarasLos Lagos Region, Chile
    761.5×
  188. 188LubnjowBrandenburg, Germany
    751.5×
  189. 188Žiar nad HronomBanská Bystrica Region, Slovakia
    751.5×
  190. 190PrievidzaTrenčín Region, Slovakia
    751.5×
  191. 191KošiceKošice Region, Slovakia
    751.5×
  192. 192OviedoAsturias, Spain
    751.5×
  193. 193TolucaMéxico, Mexico
    741.4×
  194. 194Samut PrakanSamut Prakan, Thailand
    741.4×
  195. 194Brandenburg an der HavelBrandenburg, Germany
    741.4×
  196. 194La Roche-sur-YonPays de la Loire, France
    741.4×
  197. 194HualquiBiobio, Chile
    741.4×
  198. 194CoronelBiobio, Chile
    741.4×
  199. 199AricaArica y Parinacota Region, Chile
    741.4×
  200. 200Novi SadVojvodina, Serbia
    731.4×

Top 200 of 1,934 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 6, 2023, smogrank.com/history/2023-12-06 (accessed 2 Oct 2026).

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