SmogRank / History / September 2, 2024

Most polluted cities on September 2, 2024

1,768 cities ranked by their average PM2.5 over the day; the worst was Puerto Aysén, Chile, at 83.0 µg/m³. Each city's own local calendar day.

← Puerto Aysén 83.0 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for September 2, 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. 1Puerto AysénAysén, Chile
    1705.5×
  2. 2DushanbeDushanbe, Tajikistan
    1665.1×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    1483.6×
  4. 4CoyhaiqueAysén, Chile
    1433.5×
  5. 5Santa Anita - Los FicusLima region, Peru
    1433.5×
  6. 6Lahorelow-cost sensorsPunjab, Pakistan
    1253.0×
  7. 7Addis AbabaAddis Ababa, Ethiopia
    1233.0×
  8. 8Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1192.9×
  9. 9São PauloSão Paulo, Brazil
    1192.8×
  10. 10BakuBaki, Azerbaijan
    1152.8×
  11. 11JakartaJakarta, Indonesia
    1072.5×
  12. 12CairoCairo, Egypt
    1042.4×
  13. 13HelenaMontana, United States
    1012.4×
  14. 14MissoulaMontana, United States
    1002.4×
  15. 15BaghdadBaghdad, Iraq
    992.3×
  16. 16La UniónLos Ríos Region, Chile
    972.3×
  17. 17MaputoMaputo City, Mozambique
    962.2×
  18. 18ButteMontana, United States
    932.1×
  19. 19Puerto MonttLos Lagos Region, Chile
    932.1×
  20. 20Karachilow-cost sensorsSindh, Pakistan
    902.0×
  21. 20VillarricaAraucania, Chile
    902.0×
  22. 22OsornoLos Lagos Region, Chile
    892.0×
  23. 22NacimientoBiobio, Chile
    892.0×
  24. 24QuillotaValparaiso, Chile
    881.9×
  25. 25Puente AltoSantiago Metropolitan, Chile
    881.9×
  26. 26CuricóMaule Region, Chile
    871.9×
  27. 27CuranilahueBiobio, Chile
    861.9×
  28. 28San Francisco De BorjaLima region, Peru
    851.8×
  29. 29QuinteroValparaiso, Chile
    841.8×
  30. 30Puerto VarasLos Lagos Region, Chile
    841.8×
  31. 31Villa Poeta José Gálvez BarrenecheaLima region, Peru
    841.8×
  32. 32SantiagoSantiago Metropolitan, Chile
    831.8×
  33. 33RacibórzSilesia, Poland
    831.7×
  34. 34DelhiDelhi, India
    831.7×
  35. 34CoronelBiobio, Chile
    831.7×
  36. 36ChillánÑuble, Chile
    821.7×
  37. 37GuangzhouGuangdong, China
    821.7×
  38. 37QuilpuéValparaiso, Chile
    821.7×
  39. 39FengshanTakao, Taiwan
    811.7×
  40. 39HualquiBiobio, Chile
    811.7×
  41. 41Abujalow-cost sensorsFCT, Nigeria
    811.7×
  42. 42Şabāḩ as SālimMubārak al Kabīr, Kuwait
    811.7×
  43. 42Jacobo HunterArequipa, Peru
    811.7×
  44. 44TalcaMaule Region, Chile
    801.7×
  45. 44YanacanchaPasco, Peru
    801.7×
  46. 46JinchengFukien, Taiwan
    801.6×
  47. 47AlgiersAlgiers, Algeria
    801.6×
  48. 48ShanghaiShanghai, China
    791.6×
  49. 49WŏnjuGangwon-do, South Korea
    791.6×
  50. 50San ClementeIca, Peru
    791.6×
  51. 51TemucoAraucania, Chile
    781.6×
  52. 52ErlunTaiwan, Taiwan
    781.6×
  53. 53HayangGyeongsangbuk-do, South Korea
    781.6×
  54. 53La SerenaCoquimbo Region, Chile
    781.6×
  55. 55RancaguaO'Higgins Region, Chile
    781.6×
  56. 56Viña del MarValparaiso, Chile
    781.6×
  57. 57Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    771.5×
  58. 58KatowiceSilesia, Poland
    771.5×
  59. 59XinyingTaiwan, Taiwan
    771.5×
  60. 60Jastrzębie ZdrójSilesia, Poland
    761.5×
  61. 60Asunciónlow-cost sensorsAsuncion, Paraguay
    761.5×
  62. 62SarajevoFederation of B&H, Bosnia and Herzegovina
    761.5×
  63. 63CauquenesMaule Region, Chile
    761.5×
  64. 64Wan ChaiWan Chai, Hong Kong
    761.5×
  65. 65GumiGyeongsangbuk-do, South Korea
    761.5×
  66. 65Kędzierzyn-KoźleOpole Voivodeship, Poland
    761.5×
  67. 67CoquimboCoquimbo Region, Chile
    751.5×
  68. 68BuanJeollabuk-do, South Korea
    751.5×
  69. 68MokpoJeollanam-do, South Korea
    751.5×
  70. 68LimaLima Province, Peru
    751.5×
  71. 71LewistonIdaho, United States
    741.4×
  72. 72Ban Talat BuengChon Buri, Thailand
    741.4×
  73. 73AntofagastaAntofagasta, Chile
    741.4×
  74. 74JeongeupJeollabuk-do, South Korea
    731.4×
  75. 75BeigangTaiwan, Taiwan
    731.4×
  76. 75PubalGyeonggi-do, South Korea
    731.4×
  77. 75RengoO'Higgins Region, Chile
    731.4×
  78. 78TalaganteSantiago Metropolitan, Chile
    731.4×
  79. 79SaikiOita, Japan
    731.4×
  80. 79Jurong WestSingapore
    731.4×
  81. 81KanchanaburiKanchanaburi, Thailand
    721.4×
  82. 81Icheon-siGyeonggi-do, South Korea
    721.4×
  83. 83YuanlinTaiwan, Taiwan
    721.4×
  84. 83KimjeJeollabuk-do, South Korea
    721.4×
  85. 83Chinch'ŏnNorth Chungcheong, South Korea
    721.4×
  86. 86Kathmandulow-cost sensorsBagmati Province, Nepal
    721.3×
  87. 86IksanJeollabuk-do, South Korea
    721.3×
  88. 86Saint CloudMinnesota, United States
    721.3×
  89. 89TaibaoTaiwan, Taiwan
    711.3×
  90. 89JungpyongNorth Chungcheong, South Korea
    711.3×
  91. 91MielecSubcarpathia, Poland
    711.3×
  92. 91Medina Estateslow-cost sensorsGreater Accra, Ghana
    711.3×
  93. 91KrakówLesser Poland, Poland
    711.3×
  94. 91ValdiviaLos Ríos Region, Chile
    711.3×
  95. 91Los ÁngelesBiobio, Chile
    711.3×
  96. 96WanjuJeollabuk-do, South Korea
    711.3×
  97. 96Ang Mo Kio New TownSingapore
    711.3×
  98. 98GimcheonGyeongsangbuk-do, South Korea
    711.3×
  99. 99TratTrat, Thailand
    711.3×
  100. 99GlendoraCalifornia, United States
    711.3×
  101. 101KaohsiungTakao, Taiwan
    701.3×
  102. 101NamsaJeollabuk-do, South Korea
    701.3×
  103. 101TakanabeMiyazaki, Japan
    701.3×
  104. 101Czechowice-DziedziceSilesia, Poland
    701.3×
  105. 105ChaozhouTaiwan, Taiwan
    701.3×
  106. 105ChiguayanteBiobio, Chile
    701.3×
  107. 107YecheonGyeongsangbuk-do, South Korea
    701.3×
  108. 108GunsanJeollabuk-do, South Korea
    701.3×
  109. 108CopiapóAtacama, Chile
    701.3×
  110. 110TainanTaiwan, Taiwan
    701.3×
  111. 110Bielsko-BialaSilesia, Poland
    701.3×
  112. 112ChennaiTamil Nadu, India
    691.3×
  113. 112NonsanChungcheongnam-do, South Korea
    691.3×
  114. 114Gyeongsan-siGyeongsangbuk-do, South Korea
    691.3×
  115. 114ChungjuNorth Chungcheong, South Korea
    691.3×
  116. 114MiyakonojōMiyazaki, Japan
    691.3×
  117. 114AricaArica y Parinacota Region, Chile
    691.3×
  118. 118MiskolcBorsod-Abaúj-Zemplén, Hungary
    691.3×
  119. 118BuziTaiwan, Taiwan
    691.3×
  120. 118KinzanChungcheongnam-do, South Korea
    691.3×
  121. 118MoscowIdaho, United States
    691.3×
  122. 118ChangnyeongGyeongsangnam-do, South Korea
    691.3×
  123. 123YeojuGyeonggi-do, South Korea
    691.2×
  124. 123Hongch’ŏnGangwon-do, South Korea
    691.2×
  125. 123YauriCuzco Department, Peru
    691.2×
  126. 126YongkangTaiwan, Taiwan
    691.2×
  127. 126ZhushanTaiwan, Taiwan
    691.2×
  128. 126YeongjuGyeongsangbuk-do, South Korea
    691.2×
  129. 126GijangBusan, South Korea
    691.2×
  130. 126Carsonlow-cost sensorsCalifornia, United States
    691.2×
  131. 126Hawthornelow-cost sensorsCalifornia, United States
    691.2×
  132. 132DouliuTaiwan, Taiwan
    691.2×
  133. 132ErlinTaiwan, Taiwan
    691.2×
  134. 132YesanChungcheongnam-do, South Korea
    691.2×
  135. 132TocopillaAntofagasta, Chile
    691.2×
  136. 136OkcheonNorth Chungcheong, South Korea
    681.2×
  137. 136Torrancelow-cost sensorsCalifornia, United States
    681.2×
  138. 138PohangGyeongsangbuk-do, South Korea
    681.2×
  139. 138Jeju CityJeju-do, South Korea
    681.2×
  140. 140GaigeturiJeju-do, South Korea
    681.2×
  141. 141MasanGwangju, South Korea
    681.2×
  142. 141NobeokaMiyazaki, Japan
    681.2×
  143. 141ChocopeLa Libertad, Peru
    681.2×
  144. 141Jurupa ValleyCalifornia, United States
    681.2×
  145. 145NantouTaiwan, Taiwan
    681.2×
  146. 145Inglewoodlow-cost sensorsCalifornia, United States
    681.2×
  147. 147AntananarivoAnalamanga, Madagascar
    671.2×
  148. 148UngsangGyeongsangnam-do, South Korea
    671.2×
  149. 148NaesŏGyeongsangnam-do, South Korea
    671.2×
  150. 150XizhouTaiwan, Taiwan
    671.2×
  151. 150Chiayi CityTaiwan, Taiwan
    671.2×
  152. 150TangjinChungcheongnam-do, South Korea
    671.2×
  153. 150KoesanNorth Chungcheong, South Korea
    671.2×
  154. 150Hwaseong-siGyeonggi-do, South Korea
    671.2×
  155. 150Los AngelesCalifornia, United States
    671.2×
  156. 156Kingston upon HullEngland, United Kingdom
    671.2×
  157. 157TongyeongGyeongsangnam-do, South Korea
    671.2×
  158. 157AsoKumamoto, Japan
    671.2×
  159. 157ShintomiMiyazaki, Japan
    671.2×
  160. 160PrzemyślSubcarpathia, Poland
    661.2×
  161. 160AndongGyeongsangbuk-do, South Korea
    661.2×
  162. 160ŌzuKumamoto, Japan
    661.2×
  163. 160ToméBiobio, Chile
    661.2×
  164. 160Imperial BeachCalifornia, United States
    661.2×
  165. 165LublinLublin, Poland
    661.2×
  166. 165PlymouthEngland, United Kingdom
    661.2×
  167. 165AndoverEngland, United Kingdom
    661.2×
  168. 168UlsanUlsan, South Korea
    661.1×
  169. 168TalcahuanoBiobio, Chile
    661.1×
  170. 168HualpénBiobio, Chile
    661.1×
  171. 171KielceŚwiętokrzyskie, Poland
    661.1×
  172. 171PuliTaiwan, Taiwan
    661.1×
  173. 171TakasakiGunma, Japan
    661.1×
  174. 171Donghae CityGangwon-do, South Korea
    661.1×
  175. 175ChinjuGyeongsangnam-do, South Korea
    661.1×
  176. 175KikuchiKumamoto, Japan
    661.1×
  177. 175Alto HospicioTarapacá, Chile
    661.1×
  178. 175PortervilleCalifornia, United States
    661.1×
  179. 179TaichungTaiwan, Taiwan
    661.1×
  180. 179Yangp'yŏngGyeonggi-do, South Korea
    661.1×
  181. 179MungyeongGyeongsangbuk-do, South Korea
    661.1×
  182. 179GwangjuGwangju, South Korea
    661.1×
  183. 183ZhubeiTaiwan, Taiwan
    651.1×
  184. 183YeongdongNorth Chungcheong, South Korea
    651.1×
  185. 183RiversideCalifornia, United States
    651.1×
  186. 183PullmanWashington, United States
    651.1×
  187. 187ChangwonGyeongsangnam-do, South Korea
    651.1×
  188. 187CalamaAntofagasta, Chile
    651.1×
  189. 187BurbankCalifornia, United States
    651.1×
  190. 187Great FallsMontana, United States
    651.1×
  191. 187San Salvador TizatlalliMéxico, Mexico
    651.1×
  192. 187UkihaFukuoka, Japan
    651.1×
  193. 187HyūgaMiyazaki, Japan
    651.1×
  194. 194San Tung Chung HangIslands, Hong Kong
    651.1×
  195. 194AsanChungcheongnam-do, South Korea
    651.1×
  196. 196SeonghwanChungcheongnam-do, South Korea
    651.1×
  197. 196SantyokuGangwon-do, South Korea
    651.1×
  198. 196JeonjuJeollabuk-do, South Korea
    651.1×
  199. 196HwawŏnDaegu, South Korea
    651.1×
  200. 196SinanJeollanam-do, South Korea
    651.1×

Top 200 of 1,768 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 2, 2024, smogrank.com/history/2024-09-02 (accessed 3 Oct 2026).

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