SmogRank / History / December 11, 2023

Most polluted cities on December 11, 2023

1,916 cities ranked by their average PM2.5 over the day; the worst was Ramos Arizpe, Mexico, at 386.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 11, 2023. All episodes.

← Ramos Arizpe 386.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 11, 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. 2Piedras NegrasCoahuila, Mexico
    48721.3×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    44920.0×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    35216.7×
  5. 5Dhakalow-cost sensorsDhaka Division, Bangladesh
    34416.5×
  6. 6DelhiDelhi, India
    23910.9×
  7. 7SarajevoFederation of B&H, Bosnia and Herzegovina
    23610.7×
  8. 8KolkataWest Bengal, India
    2119.1×
  9. 9N'DjamenaN’Djaména, Chad
    2068.7×
  10. 10Islamabadlow-cost sensorsIslamabad, Pakistan
    2018.4×
  11. 11CairoCairo, Egypt
    1927.6×
  12. 12TetovoTetovo, North Macedonia
    1756.0×
  13. 13NišCentral Serbia, Serbia
    1695.4×
  14. 14Victoria de DurangoDurango, Mexico
    1695.4×
  15. 15KavadarciKavadarci, North Macedonia
    1685.3×
  16. 16Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1655.0×
  17. 17Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1604.5×
  18. 18Kathmandulow-cost sensorsBagmati Province, Nepal
    1594.4×
  19. 19SalorTashkent Region, Uzbekistan
    1594.4×
  20. 20HyderabadTelangana, India
    1564.2×
  21. 21BitolaBitola, North Macedonia
    1554.1×
  22. 22Almatylow-cost sensorsAlmaty, Kazakhstan
    1554.0×
  23. 23VelesVeles, North Macedonia
    1544.0×
  24. 24SkopjeGrad Skopje, North Macedonia
    1544.0×
  25. 25Nong KhaemBangkok, Thailand
    1533.9×
  26. 26MumbaiMaharashtra, India
    1483.6×
  27. 27ManlleuCatalonia, Spain
    1463.6×
  28. 28Abujalow-cost sensorsFCT, Nigeria
    1403.4×
  29. 29DushanbeDushanbe, Tajikistan
    1373.3×
  30. 30RuseRuse, Bulgaria
    1373.3×
  31. 31Karachilow-cost sensorsSindh, Pakistan
    1303.1×
  32. 32ManamaManama, Bahrain
    1293.1×
  33. 33Samut SakhonSamut Sakhon, Thailand
    1263.0×
  34. 34HanoiHanoi, Vietnam
    1233.0×
  35. 35Ciudad Benito JuárezNuevo León, Mexico
    1212.9×
  36. 36IlindenIlinden, North Macedonia
    1192.9×
  37. 36Mueang NonthaburiNonthaburi, Thailand
    1192.9×
  38. 38GrazStyria, Austria
    1192.9×
  39. 39BelgradeCentral Serbia, Serbia
    1182.8×
  40. 40Khlong LuangPathum Thani, Thailand
    1172.8×
  41. 41Haskovolow-cost sensorsHaskovo, Bulgaria
    1122.7×
  42. 42Phra PradaengSamut Prakan, Thailand
    1112.6×
  43. 43BangkokBangkok, Thailand
    1092.6×
  44. 44Ban Khlong PrawetBangkok, Thailand
    1082.5×
  45. 45KochaniKochani, North Macedonia
    1052.5×
  46. 46Santa CatarinaNuevo León, Mexico
    1042.5×
  47. 47GuangzhouGuangdong, China
    1022.4×
  48. 48Las Palmas de Gran CanariaCanary Islands, Spain
    1022.4×
  49. 49Santa Cruz de TenerifeCanary Islands, Spain
    1012.4×
  50. 50BeijingBeijing, China
    992.3×
  51. 51JakartaJakarta, Indonesia
    992.3×
  52. 51AvignonProvence-Alpes-Côte d'Azur, France
    992.3×
  53. 53MaspalomasCanary Islands, Spain
    992.3×
  54. 53ArrecifeCanary Islands, Spain
    992.3×
  55. 55Ciudad JuárezChihuahua, Mexico
    992.3×
  56. 56Nakhon PathomNakhon Pathom, Thailand
    982.3×
  57. 57DejCluj County, Romania
    982.3×
  58. 58Bang Bo DistrictSamut Prakan, Thailand
    972.3×
  59. 59CapannoriTuscany, Italy
    972.3×
  60. 60NîmesOccitanie, France
    962.2×
  61. 61AgüimesCanary Islands, Spain
    942.2×
  62. 61PartizánskeTrenčín Region, Slovakia
    942.2×
  63. 63TurinPiedmont, Italy
    942.2×
  64. 64JeddahMecca Region, Saudi Arabia
    932.1×
  65. 65FresnoCalifornia, United States
    912.0×
  66. 66Kampalalow-cost sensorsCentral Region, Uganda
    912.0×
  67. 67AlessandriaPiedmont, Italy
    902.0×
  68. 68SantiagoSantiago Metropolitan, Chile
    902.0×
  69. 69Gabrovolow-cost sensorsGabrovo, Bulgaria
    902.0×
  70. 70KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    902.0×
  71. 71San IsidroCanary Islands, Spain
    892.0×
  72. 72KigaliKigali, Rwanda
    892.0×
  73. 72RužomberokŽilina Region, Slovakia
    892.0×
  74. 74StocktonCalifornia, United States
    892.0×
  75. 75BakersfieldCalifornia, United States
    881.9×
  76. 76VolosThessaly, Greece
    881.9×
  77. 77PrievidzaTrenčín Region, Slovakia
    881.9×
  78. 78Granadilla de AbonaCanary Islands, Spain
    881.9×
  79. 78ZvolenBanská Bystrica Region, Slovakia
    881.9×
  80. 80LleidaCatalonia, Spain
    871.9×
  81. 81TlaquepaqueJalisco, Mexico
    871.9×
  82. 82Samut PrakanSamut Prakan, Thailand
    871.9×
  83. 83AthensAttica, Greece
    861.9×
  84. 84Puente AltoSantiago Metropolitan, Chile
    861.9×
  85. 85IngenioCanary Islands, Spain
    861.9×
  86. 86Puerto del RosarioCanary Islands, Spain
    851.8×
  87. 86CandelariaCanary Islands, Spain
    851.8×
  88. 86PesaroThe Marches, Italy
    851.8×
  89. 86HanfordCalifornia, United States
    851.8×
  90. 90ArucasCanary Islands, Spain
    851.8×
  91. 91ArlesProvence-Alpes-Côte d'Azur, France
    851.8×
  92. 92CholulaPuebla, Mexico
    851.8×
  93. 92NogalesArizona, United States
    851.8×
  94. 94Novi SadVojvodina, Serbia
    841.8×
  95. 95Addis AbabaAddis Ababa, Ethiopia
    841.8×
  96. 95MexicaliBaja California, Mexico
    841.8×
  97. 95San Salvador TizatlalliMéxico, Mexico
    841.8×
  98. 98TeldeCanary Islands, Spain
    841.8×
  99. 99SamaAsturias, Spain
    841.8×
  100. 100ThessaloníkiCentral Macedonia, Greece
    821.7×
  101. 100PhoenixArizona, United States
    821.7×
  102. 102OviedoAsturias, Spain
    821.7×
  103. 103TolucaMéxico, Mexico
    821.7×
  104. 104PécsBaranya, Hungary
    821.7×
  105. 105YangonYangon, Myanmar
    811.7×
  106. 106GyőrGyőr-Moson-Sopron, Hungary
    811.7×
  107. 106Ciudad ApodacaNuevo León, Mexico
    811.7×
  108. 108QuinteroValparaiso, Chile
    801.7×
  109. 108NogalesSonora, Mexico
    801.7×
  110. 110Cluj-NapocaCluj County, Romania
    801.7×
  111. 111MonterreyNuevo León, Mexico
    801.6×
  112. 112PátraWest Greece, Greece
    801.6×
  113. 112DěčínÚstí nad Labem Region, Czechia
    801.6×
  114. 112CorcoranCalifornia, United States
    801.6×
  115. 115AronaCanary Islands, Spain
    791.6×
  116. 115RengoO'Higgins Region, Chile
    791.6×
  117. 115Ciudad General EscobedoNuevo León, Mexico
    791.6×
  118. 115YamanashiYamanashi, Japan
    791.6×
  119. 119KofuYamanashi, Japan
    791.6×
  120. 119Lagoslow-cost sensorsLagos, Nigeria
    791.6×
  121. 119TijuanaBaja California, Mexico
    791.6×
  122. 122RancaguaO'Higgins Region, Chile
    791.6×
  123. 123Žiar nad HronomBanská Bystrica Region, Slovakia
    791.6×
  124. 123Banská BystricaBanská Bystrica Region, Slovakia
    791.6×
  125. 125MiskolcBorsod-Abaúj-Zemplén, Hungary
    781.6×
  126. 125GardanneProvence-Alpes-Côte d'Azur, France
    781.6×
  127. 127Viña del MarValparaiso, Chile
    781.6×
  128. 128Wan ChaiWan Chai, Hong Kong
    771.5×
  129. 128Cadereyta JiménezNuevo León, Mexico
    771.5×
  130. 130OurenseGalicia, Spain
    771.5×
  131. 131BrnoSouth Moravian, Czechia
    771.5×
  132. 132Arden-ArcadeCalifornia, United States
    761.5×
  133. 133KlosterneuburgLower Austria, Austria
    761.5×
  134. 134Yuba CityCalifornia, United States
    761.5×
  135. 135ŽilinaŽilina Region, Slovakia
    751.5×
  136. 136IgusaSaitama, Japan
    751.5×
  137. 137ShenyangLiaoning, China
    751.5×
  138. 138San Francisco TlalcilalcalpanMéxico, Mexico
    741.4×
  139. 139ConcónValparaiso, Chile
    741.4×
  140. 140VitrollesProvence-Alpes-Côte d'Azur, France
    741.4×
  141. 140Falconara MarittimaThe Marches, Italy
    741.4×
  142. 142PerchtoldsdorfLower Austria, Austria
    741.4×
  143. 142QuillotaValparaiso, Chile
    741.4×
  144. 144MödlingLower Austria, Austria
    741.4×
  145. 145HumennéPrešov Region, Slovakia
    731.4×
  146. 146CuricóMaule Region, Chile
    731.4×
  147. 147JesiThe Marches, Italy
    721.4×
  148. 148SaltilloCoahuila, Mexico
    721.4×
  149. 149Quezon Citylow-cost sensorsNational Capital Region, Philippines
    721.3×
  150. 149QuilpuéValparaiso, Chile
    721.3×
  151. 149SusonoShizuoka, Japan
    721.3×
  152. 152AricaArica y Parinacota Region, Chile
    711.3×
  153. 153TrnavaTrnava Region, Slovakia
    711.3×
  154. 153Karlova VesBratislava Region, Slovakia
    711.3×
  155. 155AtamiShizuoka, Japan
    711.3×
  156. 155TrenčínTrenčín Region, Slovakia
    711.3×
  157. 155MizuhoGifu, Japan
    711.3×
  158. 158AntananarivoAnalamanga, Madagascar
    711.3×
  159. 158Mixquiahuala de JuárezHidalgo, Mexico
    711.3×
  160. 160NumazuShizuoka, Japan
    711.3×
  161. 161KazoSaitama, Japan
    701.3×
  162. 162AlgiersAlgiers, Algeria
    701.3×
  163. 162TurlockCalifornia, United States
    701.3×
  164. 164HannōSaitama, Japan
    701.3×
  165. 164LiberpolisCounty of Osijek-Baranja, Croatia
    701.3×
  166. 166MorohongōSaitama, Japan
    701.3×
  167. 166Fos-sur-MerProvence-Alpes-Côte d'Azur, France
    701.3×
  168. 166Las VegasNevada, United States
    701.3×
  169. 169AntofagastaAntofagasta, Chile
    691.3×
  170. 169ChicoCalifornia, United States
    691.3×
  171. 169PortervilleCalifornia, United States
    691.3×
  172. 169IrumaSaitama, Japan
    691.3×
  173. 173ClovisCalifornia, United States
    691.3×
  174. 173ModestoCalifornia, United States
    691.3×
  175. 175PiraeusAttica, Greece
    691.3×
  176. 175AsprópyrgosAttica, Greece
    691.3×
  177. 175SakadoSaitama, Japan
    691.3×
  178. 175Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    691.3×
  179. 179AcharnésAttica, Greece
    691.2×
  180. 179NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    691.2×
  181. 179Sainte-Geneviève-des-BoisÎle-de-France, France
    691.2×
  182. 179ŽideniceSouth Moravian, Czechia
    691.2×
  183. 179TocopillaAntofagasta, Chile
    691.2×
  184. 184ViennaVienna, Austria
    691.2×
  185. 184Klagenfurt am WörtherseeCarinthia, Austria
    691.2×
  186. 186GranadaAndalusia, Spain
    691.2×
  187. 186EsztergomKomárom-Esztergom, Hungary
    691.2×
  188. 186NitraNitra Region, Slovakia
    691.2×
  189. 186ReddingCalifornia, United States
    691.2×
  190. 190KošiceKošice Region, Slovakia
    681.2×
  191. 190GyōdaSaitama, Japan
    681.2×
  192. 190BratislavaBratislava Region, Slovakia
    681.2×
  193. 193KameyamaMie, Japan
    681.2×
  194. 193Minami-AlpsYamanashi, Japan
    681.2×
  195. 195Kodamachō-kodamaminamiSaitama, Japan
    681.2×
  196. 195IidaNagano, Japan
    681.2×
  197. 197YoriiSaitama, Japan
    681.2×
  198. 197WolfsbergCarinthia, Austria
    681.2×
  199. 197CoquimboCoquimbo Region, Chile
    681.2×
  200. 200KurashikiOkayama, Japan
    681.2×

Top 200 of 1,916 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 11, 2023, smogrank.com/history/2023-12-11 (accessed 2 Oct 2026).

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