SmogRank / History / December 7, 2023

Most polluted cities on December 7, 2023

1,921 cities ranked by their average PM2.5 over the day; the worst was Ramos Arizpe, Mexico, at 375.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 7, 2023. All episodes.

← Ramos Arizpe 375.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 7, 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+25.0×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    31215.4×
  3. 3DelhiDelhi, India
    23910.9×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    2199.6×
  5. 5Islamabadlow-cost sensorsIslamabad, Pakistan
    2018.4×
  6. 6N'DjamenaN’Djaména, Chad
    1927.6×
  7. 7BeijingBeijing, China
    1907.4×
  8. 8Kathmandulow-cost sensorsBagmati Province, Nepal
    1856.9×
  9. 8TřinecMoravian-Silesian Region, Czechia
    1856.9×
  10. 10CairoCairo, Egypt
    1846.9×
  11. 11OstravaMoravian-Silesian Region, Czechia
    1826.7×
  12. 12OpavaMoravian-Silesian Region, Czechia
    1816.6×
  13. 13Frýdek-MístekMoravian-Silesian Region, Czechia
    1806.5×
  14. 14HavířovMoravian-Silesian Region, Czechia
    1806.4×
  15. 15DushanbeDushanbe, Tajikistan
    1796.4×
  16. 16BohumínMoravian-Silesian Region, Czechia
    1776.1×
  17. 17Český TěšínMoravian-Silesian Region, Czechia
    1776.1×
  18. 18PřerovOlomouc Region, Czechia
    1735.8×
  19. 19Karachilow-cost sensorsSindh, Pakistan
    1695.4×
  20. 20Dhakalow-cost sensorsDhaka Division, Bangladesh
    1655.1×
  21. 21Valašské MeziříčíZlín, Czechia
    1655.1×
  22. 22TepliceÚstí nad Labem Region, Czechia
    1655.0×
  23. 23StralsundMecklenburg-Vorpommern, Germany
    1644.9×
  24. 24Ulan BatorUlaanbaatar, Mongolia
    1614.7×
  25. 24Banja LukaSrpska, Bosnia and Herzegovina
    1614.7×
  26. 26DěčínÚstí nad Labem Region, Czechia
    1604.6×
  27. 27ManamaManama, Bahrain
    1604.5×
  28. 28Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1594.4×
  29. 29OlomoucOlomouc Region, Czechia
    1584.3×
  30. 30RostockMecklenburg-Vorpommern, Germany
    1554.0×
  31. 31Spišská Nová VesKošice Region, Slovakia
    1533.9×
  32. 32KielSchleswig-Holstein, Germany
    1523.8×
  33. 33WismarMecklenburg-Vorpommern, Germany
    1523.8×
  34. 33EisenhüttenstadtBrandenburg, Germany
    1523.8×
  35. 35ŽilinaŽilina Region, Slovakia
    1493.7×
  36. 36LübeckSchleswig-Holstein, Germany
    1483.6×
  37. 37Ústí nad LabemÚstí nad Labem Region, Czechia
    1473.6×
  38. 38Frankfurt (Oder)Brandenburg, Germany
    1443.5×
  39. 39KroměřížZlín, Czechia
    1443.5×
  40. 40DejCluj County, Romania
    1383.4×
  41. 41ZlínZlín, Czechia
    1373.3×
  42. 42MartinŽilina Region, Slovakia
    1323.2×
  43. 43MumbaiMaharashtra, India
    1313.2×
  44. 44LitvínovÚstí nad Labem Region, Czechia
    1303.1×
  45. 45Schwedt (Oder)Brandenburg, Germany
    1293.1×
  46. 46HumennéPrešov Region, Slovakia
    1243.0×
  47. 47GüstrowMecklenburg-Vorpommern, Germany
    1233.0×
  48. 48ItzehoeSchleswig-Holstein, Germany
    1212.9×
  49. 49Hradec KrálovéHradec Králové Region, Czechia
    1202.9×
  50. 50PartizánskeTrenčín Region, Slovakia
    1172.8×
  51. 51PrievidzaTrenčín Region, Slovakia
    1142.7×
  52. 52RužomberokŽilina Region, Slovakia
    1132.7×
  53. 53KolkataWest Bengal, India
    1122.7×
  54. 54Mladá BoleslavCentral Bohemia, Czechia
    1122.7×
  55. 55JakartaJakarta, Indonesia
    1112.6×
  56. 56TetovoTetovo, North Macedonia
    1082.6×
  57. 57PardubicePardubice Region, Czechia
    1062.5×
  58. 58FlensburgSchleswig-Holstein, Germany
    1052.5×
  59. 59KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1022.4×
  60. 60MostÚstí nad Labem Region, Czechia
    1012.4×
  61. 61EberswaldeBrandenburg, Germany
    1002.4×
  62. 62PrešovPrešov Region, Slovakia
    982.3×
  63. 62AlessandriaPiedmont, Italy
    982.3×
  64. 64ShenyangLiaoning, China
    982.3×
  65. 65KigaliKigali, Rwanda
    972.2×
  66. 66Vranov nad TopľouPrešov Region, Slovakia
    962.2×
  67. 67ManlleuCatalonia, Spain
    962.2×
  68. 68Banská BystricaBanská Bystrica Region, Slovakia
    962.2×
  69. 69ZvolenBanská Bystrica Region, Slovakia
    952.2×
  70. 70NišCentral Serbia, Serbia
    952.2×
  71. 71LleidaCatalonia, Spain
    942.2×
  72. 72JeddahMecca Region, Saudi Arabia
    942.2×
  73. 73TijuanaBaja California, Mexico
    942.1×
  74. 74PopradPrešov Region, Slovakia
    932.1×
  75. 75BitolaBitola, North Macedonia
    932.1×
  76. 75TurinPiedmont, Italy
    932.1×
  77. 77MannheimBaden-Wurttemberg, Germany
    922.1×
  78. 78BeneventoCampania, Italy
    922.1×
  79. 79Cluj-NapocaCluj County, Romania
    912.1×
  80. 79MurciaMurcia, Spain
    912.1×
  81. 81České BudějoviceSouth Bohemian Region, Czechia
    902.0×
  82. 82MiskolcBorsod-Abaúj-Zemplén, Hungary
    902.0×
  83. 83TrenčínTrenčín Region, Slovakia
    892.0×
  84. 84CapannoriTuscany, Italy
    892.0×
  85. 85HamburgHamburg, Germany
    881.9×
  86. 86AugustaGeorgia, United States
    881.9×
  87. 87YangonYangon, Myanmar
    881.9×
  88. 88NaplesCampania, Italy
    881.9×
  89. 89HandlováTrenčín Region, Slovakia
    861.9×
  90. 90Lagoslow-cost sensorsLagos, Nigeria
    851.8×
  91. 91Samut SakhonSamut Sakhon, Thailand
    851.8×
  92. 92Botevgradlow-cost sensorsSofia, Bulgaria
    851.8×
  93. 92Ciudad JuárezChihuahua, Mexico
    851.8×
  94. 94HyderabadTelangana, India
    841.8×
  95. 95SkopjeGrad Skopje, North Macedonia
    841.8×
  96. 96TraunUpper Austria, Austria
    831.8×
  97. 97SenicaTrnava Region, Slovakia
    831.8×
  98. 97San Salvador TizatlalliMéxico, Mexico
    831.8×
  99. 99IlindenIlinden, North Macedonia
    821.7×
  100. 99ValdemoroMadrid, Spain
    821.7×
  101. 101MalmöSkåne, Sweden
    821.7×
  102. 102BerounCentral Bohemia, Czechia
    821.7×
  103. 103CalexicoCalifornia, United States
    821.7×
  104. 104NitraNitra Region, Slovakia
    811.7×
  105. 105KlaipėdaKlaipėda County, Lithuania
    811.7×
  106. 106KošiceKošice Region, Slovakia
    811.7×
  107. 107OurenseGalicia, Spain
    801.6×
  108. 108Žiar nad HronomBanská Bystrica Region, Slovakia
    801.6×
  109. 109BerlinState of Berlin, Germany
    791.6×
  110. 110Haskovolow-cost sensorsHaskovo, Bulgaria
    791.6×
  111. 110NagatoYamaguchi, Japan
    791.6×
  112. 112Maebaru-chūōFukuoka, Japan
    791.6×
  113. 112Mollet del VallèsCatalonia, Spain
    791.6×
  114. 114Uekimachi-mōnoKumamoto, Japan
    781.6×
  115. 114CopiapóAtacama, Chile
    781.6×
  116. 116GuangzhouGuangdong, China
    781.6×
  117. 116TeltowBrandenburg, Germany
    781.6×
  118. 116L'Ancienne-LoretteQuebec, Canada
    781.6×
  119. 119Nakhon PathomNakhon Pathom, Thailand
    781.6×
  120. 120NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    771.6×
  121. 121BelgradeCentral Serbia, Serbia
    771.5×
  122. 121ŽideniceSouth Moravian, Czechia
    771.5×
  123. 123TrnavaTrnava Region, Slovakia
    771.5×
  124. 123LiberecLiberec Region, Czechia
    771.5×
  125. 125NeuruppinBrandenburg, Germany
    771.5×
  126. 126TakanabeMiyazaki, Japan
    761.5×
  127. 126Bernau bei BerlinBrandenburg, Germany
    761.5×
  128. 128KochaniKochani, North Macedonia
    761.5×
  129. 129TarbesOccitanie, France
    761.5×
  130. 129Santa CatarinaNuevo León, Mexico
    761.5×
  131. 131Viña del MarValparaiso, Chile
    761.5×
  132. 132SpeyerRheinland-Pfalz, Germany
    751.5×
  133. 132EsztergomKomárom-Esztergom, Hungary
    751.5×
  134. 134Addis AbabaAddis Ababa, Ethiopia
    751.5×
  135. 134AntananarivoAnalamanga, Madagascar
    751.5×
  136. 136HonmachiKumamoto, Japan
    751.5×
  137. 136AlgiersAlgiers, Algeria
    751.5×
  138. 136Collado-VillalbaMadrid, Spain
    751.5×
  139. 139AnsfeldenUpper Austria, Austria
    751.5×
  140. 140KaunasKaunas, Lithuania
    741.4×
  141. 140GrazStyria, Austria
    741.4×
  142. 140BogotáBogota D.C., Colombia
    741.4×
  143. 140TocopillaAntofagasta, Chile
    741.4×
  144. 144QuillotaValparaiso, Chile
    741.4×
  145. 145VelesVeles, North Macedonia
    741.4×
  146. 146WormsRheinland-Pfalz, Germany
    741.4×
  147. 146AlbanyGeorgia, United States
    741.4×
  148. 148VolosThessaly, Greece
    741.4×
  149. 148LunévilleGrand Est, France
    741.4×
  150. 148QuinteroValparaiso, Chile
    741.4×
  151. 151HualpénBiobio, Chile
    731.4×
  152. 152PotsdamBrandenburg, Germany
    731.4×
  153. 152FalkenseeBrandenburg, Germany
    731.4×
  154. 154KadaňÚstí nad Labem Region, Czechia
    731.4×
  155. 154KotōKumamoto, Japan
    731.4×
  156. 156TamanaKumamoto, Japan
    731.4×
  157. 156FukuokaFukuoka, Japan
    731.4×
  158. 156NauenBrandenburg, Germany
    731.4×
  159. 156Brandenburg an der HavelBrandenburg, Germany
    731.4×
  160. 156ChiguayanteBiobio, Chile
    731.4×
  161. 161HattiesburgMississippi, United States
    731.4×
  162. 162Tuen MunTuen Mun, Hong Kong
    721.4×
  163. 162ToméBiobio, Chile
    721.4×
  164. 164CoronelBiobio, Chile
    721.4×
  165. 165KumamotoKumamoto, Japan
    721.4×
  166. 165MonacoMunicipality of Monaco, Monaco
    721.4×
  167. 167MiyakonojōMiyazaki, Japan
    721.3×
  168. 167WelsUpper Austria, Austria
    721.3×
  169. 167NeuenhagenBrandenburg, Germany
    721.3×
  170. 170PassauBavaria, Germany
    711.3×
  171. 171NichinanMiyazaki, Japan
    711.3×
  172. 171WolfsbergCarinthia, Austria
    711.3×
  173. 171LinzUpper Austria, Austria
    711.3×
  174. 171CosladaMadrid, Spain
    711.3×
  175. 175KogaFukuoka, Japan
    711.3×
  176. 176PesaroThe Marches, Italy
    711.3×
  177. 176HualquiBiobio, Chile
    711.3×
  178. 178CuricóMaule Region, Chile
    711.3×
  179. 178Blankenfelde-MahlowBrandenburg, Germany
    711.3×
  180. 180KlosterneuburgLower Austria, Austria
    711.3×
  181. 180WittenbergeBrandenburg, Germany
    711.3×
  182. 180ColumbusGeorgia, United States
    711.3×
  183. 183MexicaliBaja California, Mexico
    701.3×
  184. 183WittenbergSaxony-Anhalt, Germany
    701.3×
  185. 183HigashigōSaga, Japan
    701.3×
  186. 186ŌmutaFukuoka, Japan
    701.3×
  187. 186Sankt PöltenLower Austria, Austria
    701.3×
  188. 186GivorsAuvergne-Rhône-Alpes, France
    701.3×
  189. 186DearbornMichigan, United States
    701.3×
  190. 190ObihiroHokkaido, Japan
    701.3×
  191. 190San Francisco TlalcilalcalpanMéxico, Mexico
    701.3×
  192. 190RancaguaO'Higgins Region, Chile
    701.3×
  193. 190CoquimboCoquimbo Region, Chile
    701.3×
  194. 190AricaArica y Parinacota Region, Chile
    701.3×
  195. 195Falconara MarittimaThe Marches, Italy
    701.3×
  196. 195QuilpuéValparaiso, Chile
    701.3×
  197. 197Tottori-shiTottori, Japan
    701.3×
  198. 198ThessaloníkiCentral Macedonia, Greece
    691.3×
  199. 198YamagaKumamoto, Japan
    691.3×
  200. 198KagoshimaKagoshima, Japan
    691.3×

Top 200 of 1,921 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 7, 2023, smogrank.com/history/2023-12-07 (accessed 2 Oct 2026).

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