SmogRank / History / November 20, 2023

Most polluted cities on November 20, 2023

1,909 cities ranked by their average PM2.5 over the day; the worst was Veracruz, Mexico, at 422.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during November 20, 2023. All episodes.

← Veracruz 422.0 µg/m³ 400 µg/m³15 WHO 24-hour guideline
Every city ranked for November 20, 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. 1VeracruzVeracruz, Mexico
    500+28.1×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    32215.7×
  3. 3DelhiDelhi, India
    26212.5×
  4. 4N'DjamenaN’Djaména, Chad
    23910.9×
  5. 5Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    22810.2×
  6. 6Karachilow-cost sensorsSindh, Pakistan
    2209.7×
  7. 7SarajevoFederation of B&H, Bosnia and Herzegovina
    2048.6×
  8. 8Ulan BatorUlaanbaatar, Mongolia
    2028.5×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    1816.5×
  10. 10KolkataWest Bengal, India
    1745.9×
  11. 11Dhakalow-cost sensorsDhaka Division, Bangladesh
    1725.7×
  12. 12BeijingBeijing, China
    1634.8×
  13. 13MumbaiMaharashtra, India
    1604.6×
  14. 14NišCentral Serbia, Serbia
    1604.5×
  15. 15TetovoTetovo, North Macedonia
    1574.3×
  16. 16BitolaBitola, North Macedonia
    1533.9×
  17. 17Samut SakhonSamut Sakhon, Thailand
    1523.8×
  18. 18HyderabadTelangana, India
    1423.5×
  19. 19PristinaPristina, Kosovo
    1403.4×
  20. 20Abujalow-cost sensorsFCT, Nigeria
    1343.2×
  21. 21AntananarivoAnalamanga, Madagascar
    1313.2×
  22. 22KavadarciKavadarci, North Macedonia
    1283.1×
  23. 23BurgosCastille and León, Spain
    1263.1×
  24. 24SkopjeGrad Skopje, North Macedonia
    1243.0×
  25. 25Ciudad Benito JuárezNuevo León, Mexico
    1192.9×
  26. 26GuangzhouGuangdong, China
    1172.8×
  27. 27Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1152.7×
  28. 28AlessandriaPiedmont, Italy
    1132.7×
  29. 29DushanbeDushanbe, Tajikistan
    1112.6×
  30. 30CholulaPuebla, Mexico
    1112.6×
  31. 31Nakhon PathomNakhon Pathom, Thailand
    1102.6×
  32. 32Nong KhaemBangkok, Thailand
    1092.6×
  33. 33TolucaMéxico, Mexico
    1082.5×
  34. 34Mueang NonthaburiNonthaburi, Thailand
    1072.5×
  35. 35BelgradeCentral Serbia, Serbia
    1052.5×
  36. 36CapannoriTuscany, Italy
    1052.5×
  37. 37VelesVeles, North Macedonia
    1042.5×
  38. 38JakartaJakarta, Indonesia
    1022.4×
  39. 39IlindenIlinden, North Macedonia
    992.3×
  40. 40Asunciónlow-cost sensorsAsuncion, Paraguay
    972.3×
  41. 41San Salvador TizatlalliMéxico, Mexico
    962.2×
  42. 42CelayaGuanajuato, Mexico
    952.2×
  43. 43Khlong LuangPathum Thani, Thailand
    942.1×
  44. 44PesaroThe Marches, Italy
    932.1×
  45. 45BurrianaValencia, Spain
    932.1×
  46. 46KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    932.1×
  47. 46San Francisco TlalcilalcalpanMéxico, Mexico
    932.1×
  48. 48BangkokBangkok, Thailand
    932.1×
  49. 49TurinPiedmont, Italy
    922.1×
  50. 50Tuen MunTuen Mun, Hong Kong
    902.0×
  51. 51LleidaCatalonia, Spain
    902.0×
  52. 52ZapopanJalisco, Mexico
    892.0×
  53. 53Wan ChaiWan Chai, Hong Kong
    881.9×
  54. 54KochaniKochani, North Macedonia
    881.9×
  55. 55Cadereyta JiménezNuevo León, Mexico
    871.9×
  56. 56BarcelonaCatalonia, Spain
    871.9×
  57. 57GrazStyria, Austria
    861.9×
  58. 58ShenyangLiaoning, China
    861.9×
  59. 59Bang Bo DistrictSamut Prakan, Thailand
    861.9×
  60. 59Tin Shui WaiYuen Long, Hong Kong
    861.9×
  61. 59CoyhaiqueAysén, Chile
    861.9×
  62. 62AthensAttica, Greece
    861.9×
  63. 62SalamancaGuanajuato, Mexico
    861.9×
  64. 64PrievidzaTrenčín Region, Slovakia
    841.8×
  65. 64ValdemoroMadrid, Spain
    841.8×
  66. 66ValenciaValencia, Spain
    831.8×
  67. 67Zacatepec de HidalgoMorelos, Mexico
    831.8×
  68. 68San Luis de la PazGuanajuato, Mexico
    821.7×
  69. 69Puerto VarasLos Lagos Region, Chile
    811.7×
  70. 70ThessaloníkiCentral Macedonia, Greece
    811.7×
  71. 71Novi SadVojvodina, Serbia
    801.7×
  72. 71Puerto AysénAysén, Chile
    801.7×
  73. 73LyonAuvergne-Rhône-Alpes, France
    801.7×
  74. 73Ciudad ApodacaNuevo León, Mexico
    801.7×
  75. 75San Tung Chung HangIslands, Hong Kong
    801.6×
  76. 76OurenseGalicia, Spain
    801.6×
  77. 77GivorsAuvergne-Rhône-Alpes, France
    791.6×
  78. 78Tai PoTai Po, Hong Kong
    791.6×
  79. 78FanlingNorth District, Hong Kong
    791.6×
  80. 80PartizánskeTrenčín Region, Slovakia
    791.6×
  81. 81Mollet del VallèsCatalonia, Spain
    781.6×
  82. 82KigaliKigali, Rwanda
    781.6×
  83. 83YecapixtlaMorelos, Mexico
    771.6×
  84. 83PueblaPuebla, Mexico
    771.6×
  85. 85Samut PrakanSamut Prakan, Thailand
    771.5×
  86. 85Mong KokYau Tsim Mong District, Hong Kong
    771.5×
  87. 85JesiThe Marches, Italy
    771.5×
  88. 88TarragonaCatalonia, Spain
    771.5×
  89. 88Santiago de QuerétaroQuerétaro, Mexico
    771.5×
  90. 90BakuBaki, Azerbaijan
    771.5×
  91. 90MiskolcBorsod-Abaúj-Zemplén, Hungary
    771.5×
  92. 92Le RobertMartinique, Martinique
    771.5×
  93. 92Puerto MonttLos Lagos Region, Chile
    771.5×
  94. 94TocopillaAntofagasta, Chile
    761.5×
  95. 95Le LamentinMartinique, Martinique
    761.5×
  96. 96Pachuca de SotoHidalgo, Mexico
    761.5×
  97. 97MonterreyNuevo León, Mexico
    751.5×
  98. 98SallanchesAuvergne-Rhône-Alpes, France
    751.5×
  99. 99WolfsbergCarinthia, Austria
    741.4×
  100. 99Falconara MarittimaThe Marches, Italy
    741.4×
  101. 99BolzanoTrentino-Alto Adige, Italy
    741.4×
  102. 102Quezon Citylow-cost sensorsNational Capital Region, Philippines
    741.4×
  103. 102Klagenfurt am WörtherseeCarinthia, Austria
    741.4×
  104. 102La UniónLos Ríos Region, Chile
    741.4×
  105. 102IrapuatoGuanajuato, Mexico
    741.4×
  106. 106Sha TinSha Tin, Hong Kong
    731.4×
  107. 106VictoriaCentral and Western, Hong Kong
    731.4×
  108. 106MurciaMurcia, Spain
    731.4×
  109. 106Santa CatarinaNuevo León, Mexico
    731.4×
  110. 110RoveretoTrentino-Alto Adige, Italy
    731.4×
  111. 111Sau Mau PingKwun Tong District, Hong Kong
    731.4×
  112. 111Kwai ChungKwai Tsing District, Hong Kong
    731.4×
  113. 111ConcónValparaiso, Chile
    731.4×
  114. 114Phra PradaengSamut Prakan, Thailand
    721.4×
  115. 114Sham Shui PoSham Shui Po District, Hong Kong
    721.4×
  116. 116QuinteroValparaiso, Chile
    721.4×
  117. 117Almatylow-cost sensorsAlmaty, Kazakhstan
    721.4×
  118. 118Tsuen WanTsuen Wan, Hong Kong
    711.3×
  119. 118ShinagawaEhime, Japan
    711.3×
  120. 120TehuacánPuebla, Mexico
    711.3×
  121. 121BailénAndalusia, Spain
    711.3×
  122. 122TorreviejaValencia, Spain
    711.3×
  123. 123IaşiIași County, Romania
    701.3×
  124. 124Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    701.3×
  125. 124QuillotaValparaiso, Chile
    701.3×
  126. 124AltamontOregon, United States
    701.3×
  127. 127AntofagastaAntofagasta, Chile
    691.3×
  128. 127BirminghamAlabama, United States
    691.3×
  129. 129Sevlievolow-cost sensorsGabrovo, Bulgaria
    691.3×
  130. 129Fort-de-FranceMartinique, Martinique
    691.3×
  131. 129OsornoLos Lagos Region, Chile
    691.3×
  132. 132Grao de MurviedroValencia, Spain
    691.2×
  133. 132PécsBaranya, Hungary
    691.2×
  134. 132AricaArica y Parinacota Region, Chile
    691.2×
  135. 135CairoCairo, Egypt
    691.2×
  136. 136SevillaAndalusia, Spain
    691.2×
  137. 137Ribarroja del TuriaValencia, Spain
    681.2×
  138. 138NacimientoBiobio, Chile
    671.2×
  139. 138CoquimboCoquimbo Region, Chile
    671.2×
  140. 140Collado-VillalbaMadrid, Spain
    671.2×
  141. 141RuseRuse, Bulgaria
    671.2×
  142. 141TrentoTrentino-Alto Adige, Italy
    671.2×
  143. 141Viña del MarValparaiso, Chile
    671.2×
  144. 141GuadalajaraJalisco, Mexico
    671.2×
  145. 145AbasoloGuanajuato, Mexico
    671.2×
  146. 146BucharestBucharest, Romania
    671.2×
  147. 147RancaguaO'Higgins Region, Chile
    661.2×
  148. 148MeylanAuvergne-Rhône-Alpes, France
    661.2×
  149. 148San CarlosÑuble, Chile
    661.2×
  150. 150San Juan del RíoQuerétaro, Mexico
    661.1×
  151. 150CoronelBiobio, Chile
    661.1×
  152. 152Maebaru-chūōFukuoka, Japan
    661.1×
  153. 152Ciudad General EscobedoNuevo León, Mexico
    661.1×
  154. 152ComptonCalifornia, United States
    661.1×
  155. 155La Línea de la ConcepciónAndalusia, Spain
    661.1×
  156. 156CuencaCastille-La Mancha, Spain
    651.1×
  157. 157EsztergomKomárom-Esztergom, Hungary
    651.1×
  158. 158CosladaMadrid, Spain
    651.1×
  159. 159ManlleuCatalonia, Spain
    651.1×
  160. 160Cluj-NapocaCluj County, Romania
    651.1×
  161. 160MóstolesMadrid, Spain
    651.1×
  162. 162AlgiersAlgiers, Algeria
    641.1×
  163. 162Alcalá de HenaresMadrid, Spain
    641.1×
  164. 164MeyzieuAuvergne-Rhône-Alpes, France
    641.1×
  165. 164Silao de la VictoriaGuanajuato, Mexico
    641.1×
  166. 166CartagenaMurcia, Spain
    641.1×
  167. 167NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    641.1×
  168. 167HonmachiKumamoto, Japan
    641.1×
  169. 167RužomberokŽilina Region, Slovakia
    641.1×
  170. 167ValdiviaLos Ríos Region, Chile
    641.1×
  171. 171GranadaAndalusia, Spain
    641.1×
  172. 171TrenčínTrenčín Region, Slovakia
    641.1×
  173. 171TalcahuanoBiobio, Chile
    641.1×
  174. 171CuricóMaule Region, Chile
    641.1×
  175. 171CuranilahueBiobio, Chile
    641.1×
  176. 176JeddahMecca Region, Saudi Arabia
    631.1×
  177. 176La SpeziaLiguria, Italy
    631.1×
  178. 176CuernavacaMorelos, Mexico
    631.1×
  179. 179PiraeusAttica, Greece
    631.0×
  180. 179KošiceKošice Region, Slovakia
    631.0×
  181. 181Spišská Nová VesKošice Region, Slovakia
    631.0×
  182. 181CórdobaAndalusia, Spain
    631.0×
  183. 181NitraNitra Region, Slovakia
    631.0×
  184. 184KumamotoKumamoto, Japan
    631.0×
  185. 184Hondomachi-hondoKumamoto, Japan
    631.0×
  186. 184CalamaAntofagasta, Chile
    631.0×
  187. 187GardanneProvence-Alpes-Côte d'Azur, France
    631.0×
  188. 187Vilanova i la GeltrúCatalonia, Spain
    631.0×
  189. 189San Pedro de la PazBiobio, Chile
    621.0×
  190. 190IzegemFlanders, Belgium
    621.0×
  191. 190ChambéryAuvergne-Rhône-Alpes, France
    621.0×
  192. 190Tula de AllendeHidalgo, Mexico
    621.0×
  193. 190ParklandWashington, United States
    621.0×
  194. 194YangonYangon, Myanmar
    621.0×
  195. 194Alto HospicioTarapacá, Chile
    621.0×
  196. 196ŌmutaFukuoka, Japan
    621.0×
  197. 196TemucoAraucania, Chile
    621.0×
  198. 196CourtenayBritish Columbia, Canada
    621.0×
  199. 196Port AlberniBritish Columbia, Canada
    621.0×
  200. 200TrussvilleAlabama, United States
    621.0×

Top 200 of 1,909 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, November 20, 2023, smogrank.com/history/2023-11-20 (accessed 2 Oct 2026).

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