SmogRank / History / October 9, 2024

Most polluted cities on October 9, 2024

1,735 cities ranked by their average PM2.5 over the day; the worst was Baghdad, Iraq, at 149.0 µg/m³. Each city's own local calendar day.

← Baghdad 149.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for October 9, 2024, 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. 1BaghdadBaghdad, Iraq
    2249.9×
  2. 2Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1756.0×
  3. 3HanoiHanoi, Vietnam
    1725.7×
  4. 4BeijingBeijing, China
    1695.5×
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    1655.1×
  6. 6AshgabatAshgabat, Turkmenistan
    1624.8×
  7. 7Dhakalow-cost sensorsDhaka Division, Bangladesh
    1614.6×
  8. 8MumbaiMaharashtra, India
    1584.3×
  9. 9Kampalalow-cost sensorsCentral Region, Uganda
    1574.3×
  10. 10DelhiDelhi, India
    1544.0×
  11. 11Karachilow-cost sensorsSindh, Pakistan
    1544.0×
  12. 12Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1473.6×
  13. 13SheridanWyoming, United States
    1433.5×
  14. 14JakartaJakarta, Indonesia
    1222.9×
  15. 15Vientianelow-cost sensorsVientiane Prefecture, Laos
    1192.9×
  16. 16DushanbeDushanbe, Tajikistan
    1152.7×
  17. 17CairoCairo, Egypt
    1142.7×
  18. 18SalorTashkent Region, Uzbekistan
    1132.7×
  19. 19Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1102.6×
  20. 20Samut SakhonSamut Sakhon, Thailand
    1092.6×
  21. 21AntananarivoAnalamanga, Madagascar
    1062.5×
  22. 22CoyhaiqueAysén, Chile
    1052.5×
  23. 23GuangzhouGuangdong, China
    1042.4×
  24. 24AstanaAstana, Kazakhstan
    972.3×
  25. 25Puerto AysénAysén, Chile
    972.2×
  26. 26Islamabadlow-cost sensorsIslamabad, Pakistan
    952.2×
  27. 26Lagoslow-cost sensorsLagos, Nigeria
    952.2×
  28. 28CoronelBiobio, Chile
    932.1×
  29. 29LimaLima Province, Peru
    932.1×
  30. 30NacimientoBiobio, Chile
    922.1×
  31. 31Wan ChaiWan Chai, Hong Kong
    912.0×
  32. 32Bang NaBangkok, Thailand
    892.0×
  33. 33Nakhon PathomNakhon Pathom, Thailand
    881.9×
  34. 34ButteMontana, United States
    881.9×
  35. 35ChiguayanteBiobio, Chile
    871.9×
  36. 36Carsonlow-cost sensorsCalifornia, United States
    871.9×
  37. 37Tuen MunTuen Mun, Hong Kong
    871.9×
  38. 38Ban Samae DamBangkok, Thailand
    861.9×
  39. 39ToméBiobio, Chile
    851.8×
  40. 40ShenyangLiaoning, China
    851.8×
  41. 41Medina Estateslow-cost sensorsGreater Accra, Ghana
    841.8×
  42. 42Puerto VarasLos Lagos Region, Chile
    841.8×
  43. 43FanlingNorth District, Hong Kong
    831.8×
  44. 44ShanghaiShanghai, China
    821.7×
  45. 44IksanJeollabuk-do, South Korea
    821.7×
  46. 46Tin Shui WaiYuen Long, Hong Kong
    821.7×
  47. 47Kathmandulow-cost sensorsBagmati Province, Nepal
    821.7×
  48. 48Los AngelesCalifornia, United States
    821.7×
  49. 49N'DjamenaN’Djaména, Chad
    821.7×
  50. 50La UniónLos Ríos Region, Chile
    821.7×
  51. 50Inglewoodlow-cost sensorsCalifornia, United States
    821.7×
  52. 52BakuBaki, Azerbaijan
    811.7×
  53. 53Quezon Citylow-cost sensorsNational Capital Region, Philippines
    811.7×
  54. 54HualquiBiobio, Chile
    811.7×
  55. 54Torrancelow-cost sensorsCalifornia, United States
    811.7×
  56. 56Hawthornelow-cost sensorsCalifornia, United States
    801.6×
  57. 57KimjeJeollabuk-do, South Korea
    801.6×
  58. 58YesanChungcheongnam-do, South Korea
    791.6×
  59. 58BuanJeollabuk-do, South Korea
    791.6×
  60. 60Nong KhaemBangkok, Thailand
    791.6×
  61. 61Sioux FallsSouth Dakota, United States
    791.6×
  62. 62Jacobo HunterArequipa, Peru
    781.6×
  63. 63VillarricaAraucania, Chile
    781.6×
  64. 64Tai PoTai Po, Hong Kong
    781.6×
  65. 64GunsanJeollabuk-do, South Korea
    781.6×
  66. 64OsornoLos Lagos Region, Chile
    781.6×
  67. 64CauquenesMaule Region, Chile
    781.6×
  68. 68San Tung Chung HangIslands, Hong Kong
    781.6×
  69. 68Lomitalow-cost sensorsCalifornia, United States
    781.6×
  70. 70HualpénBiobio, Chile
    771.6×
  71. 71Puente AltoSantiago Metropolitan, Chile
    771.5×
  72. 72SantiagoSantiago Metropolitan, Chile
    771.5×
  73. 73Tsuen WanTsuen Wan, Hong Kong
    761.5×
  74. 73TemucoAraucania, Chile
    761.5×
  75. 75Istanbullow-cost sensorsIstanbul, Turkey
    761.5×
  76. 75Kwai ChungKwai Tsing District, Hong Kong
    761.5×
  77. 77Mong KokYau Tsim Mong District, Hong Kong
    751.5×
  78. 78TangjinChungcheongnam-do, South Korea
    751.5×
  79. 78Koch'angJeollabuk-do, South Korea
    751.5×
  80. 78Jurupa ValleyCalifornia, United States
    751.5×
  81. 81WatertownSouth Dakota, United States
    741.4×
  82. 82FontanaCalifornia, United States
    741.4×
  83. 83ChillánÑuble, Chile
    741.4×
  84. 83Khlong Sam WaBangkok, Thailand
    741.4×
  85. 85Santa Monicalow-cost sensorsCalifornia, United States
    741.4×
  86. 86CuranilahueBiobio, Chile
    741.4×
  87. 86Saphan SungBangkok, Thailand
    741.4×
  88. 88BangkokBangkok, Thailand
    731.4×
  89. 88MasanGwangju, South Korea
    731.4×
  90. 88BendOregon, United States
    731.4×
  91. 91AsanChungcheongnam-do, South Korea
    731.4×
  92. 91San ClementeIca, Peru
    731.4×
  93. 93JeongeupJeollabuk-do, South Korea
    731.4×
  94. 94GwangjuGwangju, South Korea
    731.4×
  95. 94GainesvilleGeorgia, United States
    731.4×
  96. 96Sham Shui PoSham Shui Po District, Hong Kong
    721.4×
  97. 96TalcahuanoBiobio, Chile
    721.4×
  98. 98Sha TinSha Tin, Hong Kong
    721.4×
  99. 99Samut PrakanSamut Prakan, Thailand
    721.3×
  100. 99VictoriaCentral and Western, Hong Kong
    721.3×
  101. 99Los ÁngelesBiobio, Chile
    721.3×
  102. 99BillingsMontana, United States
    721.3×
  103. 103RancaguaO'Higgins Region, Chile
    711.3×
  104. 104ValdiviaLos Ríos Region, Chile
    711.3×
  105. 104HelenaMontana, United States
    711.3×
  106. 106Novi PazarCentral Serbia, Serbia
    711.3×
  107. 106Khlong LuangPathum Thani, Thailand
    711.3×
  108. 108Phra PradaengSamut Prakan, Thailand
    711.3×
  109. 108LotaBiobio, Chile
    711.3×
  110. 110UžiceCentral Serbia, Serbia
    711.3×
  111. 110RengoO'Higgins Region, Chile
    711.3×
  112. 110SulphurLouisiana, United States
    711.3×
  113. 110RiversideCalifornia, United States
    711.3×
  114. 114BellevueNebraska, United States
    711.3×
  115. 114GilletteWyoming, United States
    711.3×
  116. 116BogotáBogota D.C., Colombia
    701.3×
  117. 117Addis AbabaAddis Ababa, Ethiopia
    701.3×
  118. 118Santa Anita - Los FicusLima region, Peru
    701.3×
  119. 119Accralow-cost sensorsGreater Accra, Ghana
    701.3×
  120. 119BurbankCalifornia, United States
    701.3×
  121. 121Puerto MonttLos Lagos Region, Chile
    701.3×
  122. 122BrookingsSouth Dakota, United States
    691.3×
  123. 122Great FallsMontana, United States
    691.3×
  124. 124YeonggwangJeollanam-do, South Korea
    691.3×
  125. 124HongseongChungcheongnam-do, South Korea
    691.3×
  126. 124TalaganteSantiago Metropolitan, Chile
    691.3×
  127. 124MissionTexas, United States
    691.3×
  128. 124AberdeenSouth Dakota, United States
    691.3×
  129. 129YanacanchaPasco, Peru
    691.3×
  130. 130TainanTaiwan, Taiwan
    691.2×
  131. 130WanjuJeollabuk-do, South Korea
    691.2×
  132. 130AlgiersAlgiers, Algeria
    691.2×
  133. 133Sau Mau PingKwun Tong District, Hong Kong
    691.2×
  134. 133IndianapolisIndiana, United States
    691.2×
  135. 135ĆuprijaCentral Serbia, Serbia
    691.2×
  136. 135BoryeongChungcheongnam-do, South Korea
    691.2×
  137. 135NonsanChungcheongnam-do, South Korea
    691.2×
  138. 138MokpoJeollanam-do, South Korea
    681.2×
  139. 139Bang KapiBangkok, Thailand
    681.2×
  140. 140XinyingTaiwan, Taiwan
    681.2×
  141. 140San Francisco De BorjaLima region, Peru
    681.2×
  142. 142ConcónValparaiso, Chile
    681.2×
  143. 143NišCentral Serbia, Serbia
    671.2×
  144. 143Rapid CitySouth Dakota, United States
    671.2×
  145. 145Bang Bo DistrictSamut Prakan, Thailand
    671.2×
  146. 145AricaArica y Parinacota Region, Chile
    671.2×
  147. 147KolkataWest Bengal, India
    671.2×
  148. 147YongkangTaiwan, Taiwan
    671.2×
  149. 147SinanJeollanam-do, South Korea
    671.2×
  150. 150San Pedro de la PazBiobio, Chile
    671.2×
  151. 151Mueang NonthaburiNonthaburi, Thailand
    671.2×
  152. 151TocopillaAntofagasta, Chile
    671.2×
  153. 151AntofagastaAntofagasta, Chile
    671.2×
  154. 154ConcepciónBiobio, Chile
    661.2×
  155. 154NogalesSonora, Mexico
    661.2×
  156. 154CalexicoCalifornia, United States
    661.2×
  157. 154GlendoraCalifornia, United States
    661.2×
  158. 158DamyangJeollanam-do, South Korea
    661.2×
  159. 158QuinteroValparaiso, Chile
    661.2×
  160. 160MiskolcBorsod-Abaúj-Zemplén, Hungary
    661.1×
  161. 160CalamaAntofagasta, Chile
    661.1×
  162. 160Terre HauteIndiana, United States
    661.1×
  163. 160Lat KrabangBangkok, Thailand
    661.1×
  164. 164ClovisCalifornia, United States
    661.1×
  165. 165BuyeoChungcheongnam-do, South Korea
    661.1×
  166. 165CallaoCallao, Peru
    661.1×
  167. 167OlsztynWarmia-Masuria, Poland
    661.1×
  168. 168Yerevanlow-cost sensorsYerevan, Armenia
    651.1×
  169. 168San DiegoCalifornia, United States
    651.1×
  170. 170DziałdowoWarmia-Masuria, Poland
    651.1×
  171. 170CuricóMaule Region, Chile
    651.1×
  172. 170GreeleyColorado, United States
    651.1×
  173. 170LongmontColorado, United States
    651.1×
  174. 170Lak SiBangkok, Thailand
    651.1×
  175. 175WłocławekKujawsko-Pomorskie, Poland
    651.1×
  176. 176JinchengFukien, Taiwan
    651.1×
  177. 177Chiayi CityTaiwan, Taiwan
    641.1×
  178. 177JangseongJeollanam-do, South Korea
    641.1×
  179. 177Viña del MarValparaiso, Chile
    641.1×
  180. 177QuillotaValparaiso, Chile
    641.1×
  181. 177AnaheimCalifornia, United States
    641.1×
  182. 177El CajonCalifornia, United States
    641.1×
  183. 183YangonYangon, Myanmar
    641.1×
  184. 183Villa Poeta José Gálvez BarrenecheaLima region, Peru
    641.1×
  185. 183El PasoTexas, United States
    641.1×
  186. 186FresnoCalifornia, United States
    641.1×
  187. 186Long BeachCalifornia, United States
    641.1×
  188. 186VisaliaCalifornia, United States
    641.1×
  189. 189NamsaJeollabuk-do, South Korea
    641.1×
  190. 189MuanJeollanam-do, South Korea
    641.1×
  191. 189CheonanChungcheongnam-do, South Korea
    641.1×
  192. 189ElblągWarmia-Masuria, Poland
    641.1×
  193. 189Ferry PassFlorida, United States
    641.1×
  194. 194TalcaMaule Region, Chile
    631.1×
  195. 195FengshanTakao, Taiwan
    631.0×
  196. 195YŏnmuChungcheongnam-do, South Korea
    631.0×
  197. 195GdyniaPomerania, Poland
    631.0×
  198. 195QuilpuéValparaiso, Chile
    631.0×
  199. 195LawrencevilleGeorgia, United States
    631.0×
  200. 195Brightonlow-cost sensorsColorado, United States
    631.0×

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

Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, most polluted cities, PM2.5, October 9, 2024, smogrank.com/history/2024-10-09 (accessed 3 Oct 2026).

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