SmogRank / History / December 12, 2023

Most polluted cities on December 12, 2023

1,847 cities ranked by their average PM2.5 over the day; the worst was Saltillo, Mexico, at 382.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 12, 2023. All episodes.

← Saltillo 382.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 12, 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. 1SaltilloCoahuila, Mexico
    500+25.5×
  2. 2N'DjamenaN’Djaména, Chad
    46920.7×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    40818.6×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    28614.1×
  5. 5DelhiDelhi, India
    28113.7×
  6. 6KolkataWest Bengal, India
    24611.4×
  7. 7Dhakalow-cost sensorsDhaka Division, Bangladesh
    22710.1×
  8. 8SarajevoFederation of B&H, Bosnia and Herzegovina
    2199.6×
  9. 9Banja LukaSrpska, Bosnia and Herzegovina
    2028.5×
  10. 10Islamabadlow-cost sensorsIslamabad, Pakistan
    1957.9×
  11. 11TetovoTetovo, North Macedonia
    1927.6×
  12. 12KavadarciKavadarci, North Macedonia
    1776.1×
  13. 13Karachilow-cost sensorsSindh, Pakistan
    1725.7×
  14. 14NišCentral Serbia, Serbia
    1695.4×
  15. 15ManlleuCatalonia, Spain
    1655.1×
  16. 16TeldeCanary Islands, Spain
    1624.8×
  17. 17Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1624.7×
  18. 18BeijingBeijing, China
    1614.7×
  19. 19CairoCairo, Egypt
    1614.7×
  20. 20BitolaBitola, North Macedonia
    1594.4×
  21. 21Abujalow-cost sensorsFCT, Nigeria
    1584.3×
  22. 22Nong KhaemBangkok, Thailand
    1564.1×
  23. 23SkopjeGrad Skopje, North Macedonia
    1554.1×
  24. 24Lagoslow-cost sensorsLagos, Nigeria
    1554.0×
  25. 25VelesVeles, North Macedonia
    1544.0×
  26. 26Samut SakhonSamut Sakhon, Thailand
    1523.8×
  27. 27VeracruzVeracruz, Mexico
    1493.7×
  28. 28Las Palmas de Gran CanariaCanary Islands, Spain
    1473.6×
  29. 29HyderabadTelangana, India
    1443.5×
  30. 30MumbaiMaharashtra, India
    1423.5×
  31. 31Mueang NonthaburiNonthaburi, Thailand
    1423.5×
  32. 32Khlong LuangPathum Thani, Thailand
    1393.4×
  33. 33Santa Cruz de TenerifeCanary Islands, Spain
    1373.3×
  34. 34Victoria de DurangoDurango, Mexico
    1343.3×
  35. 35Kathmandulow-cost sensorsBagmati Province, Nepal
    1333.2×
  36. 36GrazStyria, Austria
    1273.1×
  37. 37BangkokBangkok, Thailand
    1263.0×
  38. 38Haskovolow-cost sensorsHaskovo, Bulgaria
    1253.0×
  39. 39Phra PradaengSamut Prakan, Thailand
    1243.0×
  40. 40Nakhon PathomNakhon Pathom, Thailand
    1233.0×
  41. 40Granadilla de AbonaCanary Islands, Spain
    1233.0×
  42. 42AthensAttica, Greece
    1233.0×
  43. 42ShenyangLiaoning, China
    1233.0×
  44. 44ArlesProvence-Alpes-Côte d'Azur, France
    1233.0×
  45. 45DejCluj County, Romania
    1222.9×
  46. 46IlindenIlinden, North Macedonia
    1192.9×
  47. 46JakartaJakarta, Indonesia
    1192.9×
  48. 48IngenioCanary Islands, Spain
    1192.9×
  49. 49Ban Khlong PrawetBangkok, Thailand
    1182.8×
  50. 50La OrotavaCanary Islands, Spain
    1182.8×
  51. 51AvignonProvence-Alpes-Côte d'Azur, France
    1162.8×
  52. 52MaspalomasCanary Islands, Spain
    1152.7×
  53. 53MexicaliBaja California, Mexico
    1152.7×
  54. 54KochaniKochani, North Macedonia
    1142.7×
  55. 55VolosThessaly, Greece
    1142.7×
  56. 56AgüimesCanary Islands, Spain
    1132.7×
  57. 57Samut PrakanSamut Prakan, Thailand
    1132.7×
  58. 58PesaroThe Marches, Italy
    1122.7×
  59. 58TlaquepaqueJalisco, Mexico
    1122.7×
  60. 60DushanbeDushanbe, Tajikistan
    1122.7×
  61. 61BakuBaki, Azerbaijan
    1112.6×
  62. 62TurinPiedmont, Italy
    1112.6×
  63. 63ArucasCanary Islands, Spain
    1082.6×
  64. 64San IsidroCanary Islands, Spain
    1062.5×
  65. 65HanoiHanoi, Vietnam
    1062.5×
  66. 66SalorTashkent Region, Uzbekistan
    1052.5×
  67. 67PartizánskeTrenčín Region, Slovakia
    1032.4×
  68. 67JesiThe Marches, Italy
    1032.4×
  69. 69Falconara MarittimaThe Marches, Italy
    1022.4×
  70. 70Santa CatarinaNuevo León, Mexico
    1012.4×
  71. 71ThessaloníkiCentral Macedonia, Greece
    1012.4×
  72. 72Ciudad Benito JuárezNuevo León, Mexico
    992.3×
  73. 73MiskolcBorsod-Abaúj-Zemplén, Hungary
    992.3×
  74. 74TijuanaBaja California, Mexico
    992.3×
  75. 75BakersfieldCalifornia, United States
    982.3×
  76. 76Bang Bo DistrictSamut Prakan, Thailand
    982.3×
  77. 77AronaCanary Islands, Spain
    982.3×
  78. 78Cluj-NapocaCluj County, Romania
    972.3×
  79. 79ArrecifeCanary Islands, Spain
    962.2×
  80. 80Fos-sur-MerProvence-Alpes-Côte d'Azur, France
    952.2×
  81. 81BelgradeCentral Serbia, Serbia
    952.2×
  82. 82San Francisco TlalcilalcalpanMéxico, Mexico
    942.1×
  83. 83RuseRuse, Bulgaria
    942.1×
  84. 84Kampalalow-cost sensorsCentral Region, Uganda
    942.1×
  85. 85Santa Cruz de la PalmaCanary Islands, Spain
    932.1×
  86. 86Spišská Nová VesKošice Region, Slovakia
    922.1×
  87. 87GuangzhouGuangdong, China
    922.1×
  88. 87Wan ChaiWan Chai, Hong Kong
    922.1×
  89. 89TrnavaTrnava Region, Slovakia
    912.1×
  90. 90HanfordCalifornia, United States
    912.0×
  91. 91PiraeusAttica, Greece
    912.0×
  92. 92YangonYangon, Myanmar
    902.0×
  93. 92CandelariaCanary Islands, Spain
    902.0×
  94. 92FresnoCalifornia, United States
    902.0×
  95. 95CraiovaDolj, Romania
    892.0×
  96. 96Banská BystricaBanská Bystrica Region, Slovakia
    892.0×
  97. 97KigaliKigali, Rwanda
    892.0×
  98. 97NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    892.0×
  99. 97NîmesOccitanie, France
    892.0×
  100. 97BorgomaneroPiedmont, Italy
    892.0×
  101. 97Ciudad ApodacaNuevo León, Mexico
    892.0×
  102. 102ŽilinaŽilina Region, Slovakia
    892.0×
  103. 103LleidaCatalonia, Spain
    881.9×
  104. 104IaşiIași County, Romania
    871.9×
  105. 105AlessandriaPiedmont, Italy
    871.9×
  106. 106Puente AltoSantiago Metropolitan, Chile
    861.9×
  107. 107San Salvador TizatlalliMéxico, Mexico
    861.8×
  108. 108PrievidzaTrenčín Region, Slovakia
    851.8×
  109. 109Mong KokYau Tsim Mong District, Hong Kong
    851.8×
  110. 110ZapopanJalisco, Mexico
    841.8×
  111. 111Addis AbabaAddis Ababa, Ethiopia
    841.8×
  112. 112KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    831.8×
  113. 112Tuen MunTuen Mun, Hong Kong
    831.8×
  114. 112AnconaThe Marches, Italy
    831.8×
  115. 115TolucaMéxico, Mexico
    831.8×
  116. 115CholulaPuebla, Mexico
    831.8×
  117. 117PátraWest Greece, Greece
    821.7×
  118. 118CorcoranCalifornia, United States
    821.7×
  119. 119Gabrovolow-cost sensorsGabrovo, Bulgaria
    811.7×
  120. 119HandlováTrenčín Region, Slovakia
    811.7×
  121. 121Kwai ChungKwai Tsing District, Hong Kong
    811.7×
  122. 122Ciudad General EscobedoNuevo León, Mexico
    801.7×
  123. 123TrenčínTrenčín Region, Slovakia
    801.6×
  124. 123Mixquiahuala de JuárezHidalgo, Mexico
    801.6×
  125. 125Tsuen WanTsuen Wan, Hong Kong
    801.6×
  126. 125Sham Shui PoSham Shui Po District, Hong Kong
    801.6×
  127. 125VictoriaCentral and Western, Hong Kong
    801.6×
  128. 125Tula de AllendeHidalgo, Mexico
    801.6×
  129. 125SantiagoSantiago Metropolitan, Chile
    801.6×
  130. 130MartinŽilina Region, Slovakia
    801.6×
  131. 131Puerto del RosarioCanary Islands, Spain
    791.6×
  132. 132VitrollesProvence-Alpes-Côte d'Azur, France
    781.6×
  133. 133Novi SadVojvodina, Serbia
    781.6×
  134. 133PortervilleCalifornia, United States
    781.6×
  135. 135GardanneProvence-Alpes-Côte d'Azur, France
    781.6×
  136. 136ClovisCalifornia, United States
    781.6×
  137. 137BeneventoCampania, Italy
    771.6×
  138. 138ModestoCalifornia, United States
    771.5×
  139. 139Sau Mau PingKwun Tong District, Hong Kong
    771.5×
  140. 139Ciudad JuárezChihuahua, Mexico
    771.5×
  141. 141StocktonCalifornia, United States
    771.5×
  142. 142Puerto VarasLos Lagos Region, Chile
    761.5×
  143. 143HumennéPrešov Region, Slovakia
    761.5×
  144. 144KošiceKošice Region, Slovakia
    761.5×
  145. 144OurenseGalicia, Spain
    761.5×
  146. 146MurciaMurcia, Spain
    761.5×
  147. 146MarseilleProvence-Alpes-Côte d'Azur, France
    761.5×
  148. 146PhoenixArizona, United States
    761.5×
  149. 149San Tung Chung HangIslands, Hong Kong
    761.5×
  150. 150Tin Shui WaiYuen Long, Hong Kong
    751.5×
  151. 150MonterreyNuevo León, Mexico
    751.5×
  152. 152Tai PoTai Po, Hong Kong
    751.5×
  153. 153Jurupa ValleyCalifornia, United States
    751.5×
  154. 154MonacoMunicipality of Monaco, Monaco
    741.4×
  155. 154BurbankCalifornia, United States
    741.4×
  156. 156AntananarivoAnalamanga, Madagascar
    741.4×
  157. 157CapannoriTuscany, Italy
    741.4×
  158. 158Spanish ForkUtah, United States
    741.4×
  159. 159Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    741.4×
  160. 160Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    731.4×
  161. 161Tepeji del Río de OcampoHidalgo, Mexico
    731.4×
  162. 161Arden-ArcadeCalifornia, United States
    731.4×
  163. 163Cadereyta JiménezNuevo León, Mexico
    731.4×
  164. 164Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    721.4×
  165. 164MillcreekUtah, United States
    721.4×
  166. 166Hawthornelow-cost sensorsCalifornia, United States
    721.4×
  167. 167TocopillaAntofagasta, Chile
    721.4×
  168. 167AntofagastaAntofagasta, Chile
    721.4×
  169. 169RužomberokŽilina Region, Slovakia
    721.3×
  170. 170Žiar nad HronomBanská Bystrica Region, Slovakia
    711.3×
  171. 170RengoO'Higgins Region, Chile
    711.3×
  172. 172Viña del MarValparaiso, Chile
    711.3×
  173. 172RancaguaO'Higgins Region, Chile
    711.3×
  174. 172West JordanUtah, United States
    711.3×
  175. 175AricaArica y Parinacota Region, Chile
    711.3×
  176. 175ComptonCalifornia, United States
    711.3×
  177. 177ColomboWestern Province, Sri Lanka
    711.3×
  178. 178PrešovPrešov Region, Slovakia
    701.3×
  179. 179BolzanoTrentino-Alto Adige, Italy
    701.3×
  180. 179OremUtah, United States
    701.3×
  181. 181Chula VistaCalifornia, United States
    691.3×
  182. 182Almatylow-cost sensorsAlmaty, Kazakhstan
    691.2×
  183. 182QuinteroValparaiso, Chile
    691.2×
  184. 182Inglewoodlow-cost sensorsCalifornia, United States
    691.2×
  185. 182RiversideCalifornia, United States
    691.2×
  186. 186Vranov nad TopľouPrešov Region, Slovakia
    691.2×
  187. 186NitraNitra Region, Slovakia
    691.2×
  188. 188Sha TinSha Tin, Hong Kong
    691.2×
  189. 188ZvolenBanská Bystrica Region, Slovakia
    691.2×
  190. 190CelayaGuanajuato, Mexico
    681.2×
  191. 190ChicoCalifornia, United States
    681.2×
  192. 192AcharnésAttica, Greece
    681.2×
  193. 192Puerto MonttLos Lagos Region, Chile
    681.2×
  194. 194RigaRiga, Latvia
    681.2×
  195. 195TrentoTrentino-Alto Adige, Italy
    671.2×
  196. 195AltamontOregon, United States
    671.2×
  197. 197QuillotaValparaiso, Chile
    671.2×
  198. 197SacramentoCalifornia, United States
    671.2×
  199. 199GironaCatalonia, Spain
    671.2×
  200. 200WolfsbergCarinthia, Austria
    661.2×

Top 200 of 1,847 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 12, 2023, smogrank.com/history/2023-12-12 (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.