SmogRank / History / October 16, 2023

Most polluted cities on October 16, 2023

1,735 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 111.0 µg/m³. Each city's own local calendar day.

← Dhaka 111.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for October 16, 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. 1Dhakalow-cost sensorsDhaka Division, Bangladesh
    1907.4×
  2. 2KolkataWest Bengal, India
    1786.2×
  3. 3HyderabadTelangana, India
    1624.7×
  4. 3MumbaiMaharashtra, India
    1624.7×
  5. 5DelhiDelhi, India
    1564.2×
  6. 6ManamaManama, Bahrain
    1554.0×
  7. 7HanoiHanoi, Vietnam
    1503.7×
  8. 8SalorTashkent Region, Uzbekistan
    1393.4×
  9. 9N'DjamenaN’Djaména, Chad
    1273.1×
  10. 10Lahorelow-cost sensorsPunjab, Pakistan
    1253.0×
  11. 11Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1243.0×
  12. 12JakartaJakarta, Indonesia
    1202.9×
  13. 13CairoCairo, Egypt
    1152.7×
  14. 14Wan ChaiWan Chai, Hong Kong
    1122.7×
  15. 15GuangzhouGuangdong, China
    1052.5×
  16. 16Kathmandulow-cost sensorsBagmati Province, Nepal
    1052.5×
  17. 17Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    982.3×
  18. 18Karachilow-cost sensorsSindh, Pakistan
    952.2×
  19. 19DushanbeDushanbe, Tajikistan
    952.2×
  20. 20AntananarivoAnalamanga, Madagascar
    932.1×
  21. 20HualpénBiobio, Chile
    932.1×
  22. 22Puerto VarasLos Lagos Region, Chile
    932.1×
  23. 23Tuen MunTuen Mun, Hong Kong
    922.1×
  24. 24FanlingNorth District, Hong Kong
    902.0×
  25. 25ValdiviaLos Ríos Region, Chile
    902.0×
  26. 26Mong KokYau Tsim Mong District, Hong Kong
    881.9×
  27. 27Tin Shui WaiYuen Long, Hong Kong
    871.9×
  28. 27Kwai ChungKwai Tsing District, Hong Kong
    871.9×
  29. 29Tsuen WanTsuen Wan, Hong Kong
    871.9×
  30. 30Ulu BedokSingapore
    861.9×
  31. 31Sau Mau PingKwun Tong District, Hong Kong
    861.9×
  32. 32Tai PoTai Po, Hong Kong
    851.8×
  33. 32Sham Shui PoSham Shui Po District, Hong Kong
    851.8×
  34. 34CoyhaiqueAysén, Chile
    851.8×
  35. 35TemucoAraucania, Chile
    841.8×
  36. 35BadgerAlaska, United States
    841.8×
  37. 37Asunciónlow-cost sensorsAsuncion, Paraguay
    841.8×
  38. 38Samut SakhonSamut Sakhon, Thailand
    841.8×
  39. 39San Tung Chung HangIslands, Hong Kong
    841.8×
  40. 40Ang Mo Kio New TownSingapore
    831.8×
  41. 41Sha TinSha Tin, Hong Kong
    821.7×
  42. 42AlgiersAlgiers, Algeria
    821.7×
  43. 43VictoriaCentral and Western, Hong Kong
    811.7×
  44. 44Kampalalow-cost sensorsCentral Region, Uganda
    801.7×
  45. 45BangkokBangkok, Thailand
    791.6×
  46. 46CoquimboCoquimbo Region, Chile
    791.6×
  47. 47QuillotaValparaiso, Chile
    791.6×
  48. 48Nong KhaemBangkok, Thailand
    781.6×
  49. 49La UniónLos Ríos Region, Chile
    781.6×
  50. 50NacimientoBiobio, Chile
    761.5×
  51. 51AntofagastaAntofagasta, Chile
    761.5×
  52. 52SantiagoSantiago Metropolitan, Chile
    751.5×
  53. 53San CarlosÑuble, Chile
    751.5×
  54. 54PristinaPristina, Kosovo
    741.4×
  55. 54QuinteroValparaiso, Chile
    741.4×
  56. 56Bang Bo DistrictSamut Prakan, Thailand
    741.4×
  57. 57AsprópyrgosAttica, Greece
    741.4×
  58. 58Puente AltoSantiago Metropolitan, Chile
    741.4×
  59. 59TalaganteSantiago Metropolitan, Chile
    731.4×
  60. 59HualquiBiobio, Chile
    731.4×
  61. 61AthensAttica, Greece
    731.4×
  62. 61BakuBaki, Azerbaijan
    731.4×
  63. 63CoronelBiobio, Chile
    731.4×
  64. 64Phra PradaengSamut Prakan, Thailand
    731.4×
  65. 65Puerto MonttLos Lagos Region, Chile
    721.4×
  66. 65OsornoLos Lagos Region, Chile
    721.4×
  67. 67Nakhon PathomNakhon Pathom, Thailand
    721.4×
  68. 68Mueang NonthaburiNonthaburi, Thailand
    711.3×
  69. 68Queenstown Estatelow-cost sensorsSingapore
    711.3×
  70. 68CopiapóAtacama, Chile
    711.3×
  71. 71Abujalow-cost sensorsFCT, Nigeria
    711.3×
  72. 71TocopillaAntofagasta, Chile
    711.3×
  73. 73AricaArica y Parinacota Region, Chile
    711.3×
  74. 73TijuanaBaja California, Mexico
    711.3×
  75. 75Almatylow-cost sensorsAlmaty, Kazakhstan
    701.3×
  76. 75Khlong LuangPathum Thani, Thailand
    701.3×
  77. 75Alto HospicioTarapacá, Chile
    701.3×
  78. 78MurciaMurcia, Spain
    701.3×
  79. 79SarajevoFederation of B&H, Bosnia and Herzegovina
    701.3×
  80. 80Tha BoNong Khai, Thailand
    691.3×
  81. 80Jurupa ValleyCalifornia, United States
    691.3×
  82. 82Islamabadlow-cost sensorsIslamabad, Pakistan
    691.2×
  83. 83ToméBiobio, Chile
    691.2×
  84. 83CuricóMaule Region, Chile
    691.2×
  85. 85Addis AbabaAddis Ababa, Ethiopia
    691.2×
  86. 85BakersfieldCalifornia, United States
    691.2×
  87. 87ŻabbarĦaż-Żabbar, Malta
    681.2×
  88. 88San RoqueAndalusia, Spain
    681.2×
  89. 88La Línea de la ConcepciónAndalusia, Spain
    681.2×
  90. 88ConcónValparaiso, Chile
    681.2×
  91. 91TalcahuanoBiobio, Chile
    671.2×
  92. 92SliemaTas-Sliema, Malta
    671.2×
  93. 92Viña del MarValparaiso, Chile
    671.2×
  94. 94CuranilahueBiobio, Chile
    671.2×
  95. 94ChiguayanteBiobio, Chile
    671.2×
  96. 96Tanushimarumachi-toyokiFukuoka, Japan
    661.2×
  97. 96CalamaAntofagasta, Chile
    661.2×
  98. 98SalamancaGuanajuato, Mexico
    661.1×
  99. 99AnaheimCalifornia, United States
    661.1×
  100. 100CartagenaMurcia, Spain
    651.1×
  101. 100San Pedro de la PazBiobio, Chile
    651.1×
  102. 102ConcepciónBiobio, Chile
    651.1×
  103. 103Samut PrakanSamut Prakan, Thailand
    651.1×
  104. 103WoodlandsSingapore
    651.1×
  105. 103Banja LukaSrpska, Bosnia and Herzegovina
    651.1×
  106. 103RancaguaO'Higgins Region, Chile
    651.1×
  107. 103PortervilleCalifornia, United States
    651.1×
  108. 103BizenOkayama, Japan
    651.1×
  109. 109ShenyangLiaoning, China
    651.1×
  110. 110LotaBiobio, Chile
    641.1×
  111. 111Los ÁngelesBiobio, Chile
    641.1×
  112. 112ConakryConakry, Guinea
    641.1×
  113. 112TorreviejaValencia, Spain
    641.1×
  114. 112RiversideCalifornia, United States
    641.1×
  115. 115CauquenesMaule Region, Chile
    641.1×
  116. 116KhalándrionAttica, Greece
    641.1×
  117. 116ColomboWestern Province, Sri Lanka
    641.1×
  118. 116RengoO'Higgins Region, Chile
    641.1×
  119. 119Santa Cruz de TenerifeCanary Islands, Spain
    631.1×
  120. 119CorcoranCalifornia, United States
    631.1×
  121. 119FontanaCalifornia, United States
    631.1×
  122. 122AcharnésAttica, Greece
    631.0×
  123. 123QuilpuéValparaiso, Chile
    631.0×
  124. 124Nara-shiNara, Japan
    631.0×
  125. 124Maebaru-chūōFukuoka, Japan
    631.0×
  126. 126TamanoOkayama, Japan
    621.0×
  127. 127ArrecifeCanary Islands, Spain
    621.0×
  128. 128TalcaMaule Region, Chile
    621.0×
  129. 129Granadilla de AbonaCanary Islands, Spain
    621.0×
  130. 130TamanaKumamoto, Japan
    611.0×
  131. 131PiraeusAttica, Greece
    611.0×
  132. 131KakegawaShizuoka, Japan
    611.0×
  133. 131Los AngelesCalifornia, United States
    611.0×
  134. 134IyoEhime, Japan
    611.0×
  135. 135KavadarciKavadarci, North Macedonia
    600.9×
  136. 135HanfordCalifornia, United States
    600.9×
  137. 135KogaFukuoka, Japan
    600.9×
  138. 138KasaokaOkayama, Japan
    600.9×
  139. 138RoubaixHauts-de-France, France
    600.9×
  140. 138ChillánÑuble, Chile
    600.9×
  141. 138BuzenFukuoka, Japan
    600.9×
  142. 142HigashinozoeHyōgo, Japan
    600.9×
  143. 142KurashikiOkayama, Japan
    600.9×
  144. 142Kanzakimachi-kanzakiSaga, Japan
    600.9×
  145. 145PátraWest Greece, Greece
    600.9×
  146. 145Kuala LumpurKuala Lumpur, Malaysia
    600.9×
  147. 145MinatoWakayama, Japan
    600.9×
  148. 145Jurong WestSingapore
    600.9×
  149. 149BeijingBeijing, China
    600.9×
  150. 149Kakogawachō-honmachiHyōgo, Japan
    600.9×
  151. 149ArucasCanary Islands, Spain
    600.9×
  152. 149MimaTokushima, Japan
    600.9×
  153. 153AkashiHyōgo, Japan
    590.9×
  154. 153ŌzuKumamoto, Japan
    590.9×
  155. 155ThessaloníkiCentral Macedonia, Greece
    590.9×
  156. 155NišCentral Serbia, Serbia
    590.9×
  157. 155Narutochō-mitsuishiTokushima, Japan
    590.9×
  158. 155FukuyamaHiroshima, Japan
    590.9×
  159. 155GranadaAndalusia, Spain
    590.9×
  160. 155LinzUpper Austria, Austria
    590.9×
  161. 155Puerto AysénAysén, Chile
    590.9×
  162. 155Casa GrandeArizona, United States
    590.9×
  163. 155Carson CityNevada, United States
    590.9×
  164. 155HigashigōSaga, Japan
    590.9×
  165. 165YawataKyoto, Japan
    590.9×
  166. 165SandachōHyōgo, Japan
    590.9×
  167. 165IkedachōTokushima, Japan
    590.9×
  168. 165MostaIl-Mosta, Malta
    590.9×
  169. 169TetovoTetovo, North Macedonia
    590.9×
  170. 169TsurusakiOita, Japan
    590.9×
  171. 169TogitsuNagasaki, Japan
    590.9×
  172. 169La OrotavaCanary Islands, Spain
    590.9×
  173. 173ShimonosekiYamaguchi, Japan
    590.9×
  174. 173MinamataKumamoto, Japan
    590.9×
  175. 173AmagasakiHyōgo, Japan
    590.9×
  176. 173TraunreutBavaria, Germany
    590.9×
  177. 173AmamiKagoshima, Japan
    590.9×
  178. 178UtoKumamoto, Japan
    580.9×
  179. 178TosuSaga, Japan
    580.9×
  180. 178KumamotoKumamoto, Japan
    580.9×
  181. 178FresnoCalifornia, United States
    580.9×
  182. 182ObamaFukui, Japan
    580.9×
  183. 182KureHiroshima, Japan
    580.9×
  184. 182KashimaSaga, Japan
    580.9×
  185. 182TraunUpper Austria, Austria
    580.9×
  186. 182BurbankCalifornia, United States
    580.9×
  187. 187NakatsuOita, Japan
    580.9×
  188. 187MiyakonojōMiyazaki, Japan
    580.9×
  189. 187KurumeFukuoka, Japan
    580.9×
  190. 187FukuokaFukuoka, Japan
    580.9×
  191. 187SugaiKyoto, Japan
    580.9×
  192. 192ŌmutaFukuoka, Japan
    580.8×
  193. 192IzumoShimane, Japan
    580.8×
  194. 192IwadeWakayama, Japan
    580.8×
  195. 192Santa Cruz de la PalmaCanary Islands, Spain
    580.8×
  196. 192Las Palmas de Gran CanariaCanary Islands, Spain
    580.8×
  197. 192TakuSaga, Japan
    580.8×
  198. 198HonmachiKumamoto, Japan
    580.8×
  199. 198FujinomiyaShizuoka, Japan
    580.8×
  200. 198TatsunoHyōgo, Japan
    580.8×

Top 200 of 1,735 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, October 16, 2023, smogrank.com/history/2023-10-16 (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.