SmogRank / History / September 12, 2024

Most polluted cities on September 12, 2024

1,705 cities ranked by their average PM2.5 over the day; the worst was Fort McMurray, Canada, at 111.8 µg/m³. Each city's own local calendar day.

← Fort McMurray 111.8 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for September 12, 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. 1Fort McMurrayAlberta, Canada
    1907.5×
  2. 2Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1897.3×
  3. 3DushanbeDushanbe, Tajikistan
    1887.2×
  4. 4Lahorelow-cost sensorsPunjab, Pakistan
    1614.6×
  5. 5São PauloSão Paulo, Brazil
    1533.9×
  6. 6CairoCairo, Egypt
    1533.9×
  7. 7Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1533.8×
  8. 8Santa Anita - Los FicusLima region, Peru
    1523.8×
  9. 9La UniónLos Ríos Region, Chile
    1473.6×
  10. 10ManamaManama, Bahrain
    1453.6×
  11. 11GilletteWyoming, United States
    1443.5×
  12. 12YanacanchaPasco, Peru
    1443.5×
  13. 13AntananarivoAnalamanga, Madagascar
    1413.4×
  14. 14OsornoLos Lagos Region, Chile
    1393.4×
  15. 15Puerto VarasLos Lagos Region, Chile
    1363.3×
  16. 16HualpénBiobio, Chile
    1303.2×
  17. 17Prince AlbertSaskatchewan, Canada
    1303.2×
  18. 18KolkataWest Bengal, India
    1293.1×
  19. 19Karachilow-cost sensorsSindh, Pakistan
    1283.1×
  20. 20VillarricaAraucania, Chile
    1263.0×
  21. 21Dhakalow-cost sensorsDhaka Division, Bangladesh
    1212.9×
  22. 22JakartaJakarta, Indonesia
    1212.9×
  23. 23KigaliKigali, Rwanda
    1192.8×
  24. 24ChiguayanteBiobio, Chile
    1182.8×
  25. 25ValdiviaLos Ríos Region, Chile
    1142.7×
  26. 26BaghdadBaghdad, Iraq
    1142.7×
  27. 27HualquiBiobio, Chile
    1112.6×
  28. 28TemucoAraucania, Chile
    1112.6×
  29. 29Puerto MonttLos Lagos Region, Chile
    1032.4×
  30. 30Islamabadlow-cost sensorsIslamabad, Pakistan
    1022.4×
  31. 31GuangzhouGuangdong, China
    982.3×
  32. 32Bang NaBangkok, Thailand
    982.3×
  33. 33YauriCuzco Department, Peru
    972.3×
  34. 34ToméBiobio, Chile
    972.3×
  35. 35San Francisco De BorjaLima region, Peru
    962.2×
  36. 36CoronelBiobio, Chile
    962.2×
  37. 37Asunciónlow-cost sensorsAsuncion, Paraguay
    922.1×
  38. 38NacimientoBiobio, Chile
    912.1×
  39. 39Villa Poeta José Gálvez BarrenecheaLima region, Peru
    912.0×
  40. 39EdmontonAlberta, Canada
    912.0×
  41. 41N'DjamenaN’Djaména, Chad
    912.0×
  42. 42Addis AbabaAddis Ababa, Ethiopia
    902.0×
  43. 43Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    902.0×
  44. 44Wan ChaiWan Chai, Hong Kong
    881.9×
  45. 45RancaguaO'Higgins Region, Chile
    881.9×
  46. 45CuranilahueBiobio, Chile
    881.9×
  47. 47Jacobo HunterArequipa, Peru
    861.9×
  48. 48Puente AltoSantiago Metropolitan, Chile
    861.9×
  49. 49SantiagoSantiago Metropolitan, Chile
    851.8×
  50. 50Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    851.8×
  51. 51Şabāḩ as SālimMubārak al Kabīr, Kuwait
    851.8×
  52. 52JinchengFukien, Taiwan
    841.8×
  53. 53CallaoCallao, Peru
    841.8×
  54. 54CauquenesMaule Region, Chile
    831.8×
  55. 55CuricóMaule Region, Chile
    831.7×
  56. 56RengoO'Higgins Region, Chile
    821.7×
  57. 57XinyingTaiwan, Taiwan
    811.7×
  58. 57Summerlin SouthNevada, United States
    811.7×
  59. 59Puerto AysénAysén, Chile
    811.7×
  60. 60San Pedro de la PazBiobio, Chile
    801.6×
  61. 61SalorTashkent Region, Uzbekistan
    791.6×
  62. 62Las VegasNevada, United States
    791.6×
  63. 63ConcepciónBiobio, Chile
    791.6×
  64. 63San ClementeIca, Peru
    791.6×
  65. 65TalcaMaule Region, Chile
    791.6×
  66. 66HanoiHanoi, Vietnam
    781.6×
  67. 67QuillotaValparaiso, Chile
    781.6×
  68. 67HendersonNevada, United States
    781.6×
  69. 69MaputoMaputo City, Mozambique
    771.6×
  70. 70TalcahuanoBiobio, Chile
    771.5×
  71. 70QuinteroValparaiso, Chile
    771.5×
  72. 70Columbialow-cost sensorsMissouri, United States
    771.5×
  73. 73CoyhaiqueAysén, Chile
    761.5×
  74. 74AntofagastaAntofagasta, Chile
    761.5×
  75. 75Sherwood ParkAlberta, Canada
    761.5×
  76. 76ChennaiTamil Nadu, India
    741.4×
  77. 77ChillánÑuble, Chile
    741.4×
  78. 77Spring ValleyNevada, United States
    741.4×
  79. 79YuanlinTaiwan, Taiwan
    741.4×
  80. 80TopekaKansas, United States
    741.4×
  81. 80ShakopeeMinnesota, United States
    741.4×
  82. 82BeigangTaiwan, Taiwan
    731.4×
  83. 83FanlingNorth District, Hong Kong
    731.4×
  84. 83La SerenaCoquimbo Region, Chile
    731.4×
  85. 85TalaganteSantiago Metropolitan, Chile
    731.4×
  86. 85Kansas CityKansas, United States
    731.4×
  87. 85IndioCalifornia, United States
    731.4×
  88. 88DouliuTaiwan, Taiwan
    721.4×
  89. 88NantouTaiwan, Taiwan
    721.4×
  90. 90OlatheKansas, United States
    721.4×
  91. 91EnterpriseNevada, United States
    721.3×
  92. 92Khlong Sam WaBangkok, Thailand
    711.3×
  93. 93Saint JosephMissouri, United States
    711.3×
  94. 94Medicine HatAlberta, Canada
    711.3×
  95. 95HayangGyeongsangbuk-do, South Korea
    711.3×
  96. 96Viña del MarValparaiso, Chile
    701.3×
  97. 97Tuen MunTuen Mun, Hong Kong
    701.3×
  98. 97QuilpuéValparaiso, Chile
    701.3×
  99. 99Samut SakhonSamut Sakhon, Thailand
    701.3×
  100. 99ConcónValparaiso, Chile
    701.3×
  101. 99Red DeerAlberta, Canada
    701.3×
  102. 102ErlunTaiwan, Taiwan
    701.3×
  103. 102ZhushanTaiwan, Taiwan
    701.3×
  104. 102Chiayi CityTaiwan, Taiwan
    701.3×
  105. 102BeijingBeijing, China
    701.3×
  106. 106TocopillaAntofagasta, Chile
    701.3×
  107. 107Tin Shui WaiYuen Long, Hong Kong
    691.3×
  108. 108LublinLublin, Poland
    691.2×
  109. 108Tai PoTai Po, Hong Kong
    691.2×
  110. 108BurnsvilleMinnesota, United States
    691.2×
  111. 108BellevueNebraska, United States
    691.2×
  112. 108Boulder CityNevada, United States
    691.2×
  113. 113Ban Khlong PrawetBangkok, Thailand
    691.2×
  114. 114TaibaoTaiwan, Taiwan
    691.2×
  115. 114CalamaAntofagasta, Chile
    691.2×
  116. 114SaskatoonSaskatchewan, Canada
    691.2×
  117. 117CopiapóAtacama, Chile
    681.2×
  118. 117WatertownSouth Dakota, United States
    681.2×
  119. 119ToufenTaiwan, Taiwan
    681.2×
  120. 120BuziTaiwan, Taiwan
    681.2×
  121. 120ChocopeLa Libertad, Peru
    681.2×
  122. 120HarrisburgPennsylvania, United States
    681.2×
  123. 123YongkangTaiwan, Taiwan
    681.2×
  124. 123CoquimboCoquimbo Region, Chile
    681.2×
  125. 123RochesterMinnesota, United States
    681.2×
  126. 126Los ÁngelesBiobio, Chile
    671.2×
  127. 126St. AlbertAlberta, Canada
    671.2×
  128. 128PuliTaiwan, Taiwan
    671.2×
  129. 129ZhubeiTaiwan, Taiwan
    671.2×
  130. 130ShanghaiShanghai, China
    671.2×
  131. 130Khan Na YaoBangkok, Thailand
    671.2×
  132. 132XizhouTaiwan, Taiwan
    661.2×
  133. 133Yerevanlow-cost sensorsYerevan, Armenia
    661.1×
  134. 134ZamośćLublin, Poland
    661.1×
  135. 135MiaoliTaiwan, Taiwan
    661.1×
  136. 135MankatoMinnesota, United States
    661.1×
  137. 137ZhudongTaiwan, Taiwan
    651.1×
  138. 137OmahaNebraska, United States
    651.1×
  139. 137ChangnyeongGyeongsangnam-do, South Korea
    651.1×
  140. 140San Tung Chung HangIslands, Hong Kong
    651.1×
  141. 141AshgabatAshgabat, Turkmenistan
    651.1×
  142. 141RadomMazovia, Poland
    651.1×
  143. 141ŁukówLublin, Poland
    651.1×
  144. 144Nong KhaemBangkok, Thailand
    651.1×
  145. 144Kwai ChungKwai Tsing District, Hong Kong
    651.1×
  146. 146Saphan SungBangkok, Thailand
    651.1×
  147. 147OtwockMazovia, Poland
    641.1×
  148. 147ŌtsukiYamanashi, Japan
    641.1×
  149. 147UngsangGyeongsangnam-do, South Korea
    641.1×
  150. 150Bang Bo DistrictSamut Prakan, Thailand
    641.1×
  151. 150Alto HospicioTarapacá, Chile
    641.1×
  152. 152RedfordMichigan, United States
    641.1×
  153. 152ReginaSaskatchewan, Canada
    641.1×
  154. 154TaichungTaiwan, Taiwan
    641.1×
  155. 154ChanghuaTaiwan, Taiwan
    641.1×
  156. 154Sioux FallsSouth Dakota, United States
    641.1×
  157. 157Khlong LuangPathum Thani, Thailand
    631.1×
  158. 157Kansas CityMissouri, United States
    631.1×
  159. 159HighlandUtah, United States
    631.0×
  160. 159Swift CurrentSaskatchewan, Canada
    631.0×
  161. 161PruszkówMazovia, Poland
    631.0×
  162. 161Konstancin-JeziornaMazovia, Poland
    631.0×
  163. 161ErlinTaiwan, Taiwan
    631.0×
  164. 161KatowiceSilesia, Poland
    631.0×
  165. 165MiskolcBorsod-Abaúj-Zemplén, Hungary
    631.0×
  166. 165Phra PradaengSamut Prakan, Thailand
    631.0×
  167. 165MinneapolisMinnesota, United States
    631.0×
  168. 165FontanaCalifornia, United States
    631.0×
  169. 169FengshanTakao, Taiwan
    631.0×
  170. 169TulsaOklahoma, United States
    631.0×
  171. 169Saint PaulMinnesota, United States
    631.0×
  172. 172TainanTaiwan, Taiwan
    631.0×
  173. 172EisenGyeongsangbuk-do, South Korea
    631.0×
  174. 172Gyeongsan-siGyeongsangbuk-do, South Korea
    631.0×
  175. 172DerbyKansas, United States
    631.0×
  176. 172Apple ValleyMinnesota, United States
    631.0×
  177. 177WarsawMazovia, Poland
    621.0×
  178. 177MielecSubcarpathia, Poland
    621.0×
  179. 177Abujalow-cost sensorsFCT, Nigeria
    621.0×
  180. 177BrookfieldIllinois, United States
    621.0×
  181. 177HadongGyeongsangnam-do, South Korea
    621.0×
  182. 182NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    621.0×
  183. 182EłkWarmia-Masuria, Poland
    621.0×
  184. 182Tsuen WanTsuen Wan, Hong Kong
    621.0×
  185. 182KasaokaOkayama, Japan
    621.0×
  186. 182AberdeenSouth Dakota, United States
    621.0×
  187. 187BangkokBangkok, Thailand
    621.0×
  188. 188AlgiersAlgiers, Algeria
    621.0×
  189. 188La Crescenta-Montroselow-cost sensorsCalifornia, United States
    621.0×
  190. 190TamanaKumamoto, Japan
    611.0×
  191. 190RaymoreMissouri, United States
    611.0×
  192. 190MesquiteNevada, United States
    611.0×
  193. 193GrajewoPodlasie, Poland
    611.0×
  194. 193AugustówPodlasie, Poland
    611.0×
  195. 193HwawŏnDaegu, South Korea
    611.0×
  196. 196LegionowoMazovia, Poland
    611.0×
  197. 196Rock SpringsWyoming, United States
    611.0×
  198. 196TaoyuanTaiwan, Taiwan
    611.0×
  199. 199Kathmandulow-cost sensorsBagmati Province, Nepal
    611.0×
  200. 199Nakhon PathomNakhon Pathom, Thailand
    611.0×

Top 200 of 1,705 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, September 12, 2024, smogrank.com/history/2024-09-12 (accessed 3 Oct 2026).

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