SmogRank / History / September 4, 2024

Most polluted cities on September 4, 2024

1,774 cities ranked by their average PM2.5 over the day; the worst was Kinshasa, Democratic Republic of the Congo, at 124.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during September 4, 2024. All episodes.

← Kinshasa 124.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for September 4, 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. 1Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1998.3×
  2. 2OsornoLos Lagos Region, Chile
    1745.9×
  3. 3MiskolcBorsod-Abaúj-Zemplén, Hungary
    1634.9×
  4. 4Lahorelow-cost sensorsPunjab, Pakistan
    1634.8×
  5. 5DushanbeDushanbe, Tajikistan
    1574.3×
  6. 6SalorTashkent Region, Uzbekistan
    1564.2×
  7. 7BakuBaki, Azerbaijan
    1544.0×
  8. 7La UniónLos Ríos Region, Chile
    1544.0×
  9. 9Santa Anita - Los FicusLima region, Peru
    1503.7×
  10. 10Puerto VarasLos Lagos Region, Chile
    1493.7×
  11. 11São PauloSão Paulo, Brazil
    1443.5×
  12. 12Puerto MonttLos Lagos Region, Chile
    1433.5×
  13. 13ValdiviaLos Ríos Region, Chile
    1403.4×
  14. 14Twin FallsIdaho, United States
    1353.3×
  15. 15HualpénBiobio, Chile
    1323.2×
  16. 16Karachilow-cost sensorsSindh, Pakistan
    1303.1×
  17. 17BeijingBeijing, China
    1253.0×
  18. 18NacimientoBiobio, Chile
    1233.0×
  19. 19Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1222.9×
  20. 20Dhakalow-cost sensorsDhaka Division, Bangladesh
    1202.9×
  21. 21N'DjamenaN’Djaména, Chad
    1182.8×
  22. 22VillarricaAraucania, Chile
    1132.7×
  23. 23TemucoAraucania, Chile
    1112.6×
  24. 24StarachowiceŚwiętokrzyskie, Poland
    1112.6×
  25. 25MeridianIdaho, United States
    1082.6×
  26. 26CuranilahueBiobio, Chile
    1072.5×
  27. 27Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    1062.5×
  28. 27CoronelBiobio, Chile
    1062.5×
  29. 29HualquiBiobio, Chile
    1062.5×
  30. 30ChillánÑuble, Chile
    1052.5×
  31. 31Asunciónlow-cost sensorsAsuncion, Paraguay
    1042.5×
  32. 32Islamabadlow-cost sensorsIslamabad, Pakistan
    1042.4×
  33. 32TocopillaAntofagasta, Chile
    1042.4×
  34. 34BoiseIdaho, United States
    1022.4×
  35. 35PocatelloIdaho, United States
    1022.4×
  36. 36Swift CurrentSaskatchewan, Canada
    1012.4×
  37. 37JakartaJakarta, Indonesia
    992.3×
  38. 38YanacanchaPasco, Peru
    992.3×
  39. 39TalcahuanoBiobio, Chile
    992.3×
  40. 40Addis AbabaAddis Ababa, Ethiopia
    982.3×
  41. 41ChiguayanteBiobio, Chile
    962.2×
  42. 42CauquenesMaule Region, Chile
    932.1×
  43. 43MinamataKumamoto, Japan
    932.1×
  44. 44RedmondOregon, United States
    932.1×
  45. 45RengoO'Higgins Region, Chile
    932.1×
  46. 46NampaIdaho, United States
    922.1×
  47. 47SantiagoSantiago Metropolitan, Chile
    922.1×
  48. 48TooeleUtah, United States
    912.0×
  49. 49Puente AltoSantiago Metropolitan, Chile
    902.0×
  50. 50BaghdadBaghdad, Iraq
    892.0×
  51. 51HonmachiKumamoto, Japan
    892.0×
  52. 52Los ÁngelesBiobio, Chile
    881.9×
  53. 53ChennaiTamil Nadu, India
    881.9×
  54. 53MiyakonojōMiyazaki, Japan
    881.9×
  55. 55Villa Poeta José Gálvez BarrenecheaLima region, Peru
    871.9×
  56. 56Şabāḩ as SālimMubārak al Kabīr, Kuwait
    871.9×
  57. 57KutnoŁódź Voivodeship, Poland
    871.9×
  58. 58Wan ChaiWan Chai, Hong Kong
    871.9×
  59. 58Salt Lake CityUtah, United States
    871.9×
  60. 60CairoCairo, Egypt
    871.9×
  61. 60UtoKumamoto, Japan
    871.9×
  62. 62ElblągWarmia-Masuria, Poland
    861.9×
  63. 62RancaguaO'Higgins Region, Chile
    861.9×
  64. 62QuinteroValparaiso, Chile
    861.9×
  65. 65ZemunCentral Serbia, Serbia
    851.8×
  66. 65NichinanMiyazaki, Japan
    851.8×
  67. 67MagnaUtah, United States
    851.8×
  68. 67MillcreekUtah, United States
    851.8×
  69. 69MielecSubcarpathia, Poland
    851.8×
  70. 70PruszkówMazovia, Poland
    851.8×
  71. 71KielceŚwiętokrzyskie, Poland
    841.8×
  72. 71CuricóMaule Region, Chile
    841.8×
  73. 73Ōyanomachi-noboritateKumamoto, Japan
    841.8×
  74. 74Konstancin-JeziornaMazovia, Poland
    841.8×
  75. 74MiyazakiMiyazaki, Japan
    841.8×
  76. 74KumamotoKumamoto, Japan
    841.8×
  77. 74North OgdenUtah, United States
    841.8×
  78. 78ŌzuKumamoto, Japan
    831.8×
  79. 79AlgiersAlgiers, Algeria
    831.8×
  80. 80GuangzhouGuangdong, China
    831.7×
  81. 81BountifulUtah, United States
    831.7×
  82. 82ToruńKujawsko-Pomorskie, Poland
    821.7×
  83. 83West Valley CityUtah, United States
    821.7×
  84. 84WarsawMazovia, Poland
    821.7×
  85. 84MifuneKumamoto, Japan
    821.7×
  86. 84QuillotaValparaiso, Chile
    821.7×
  87. 87TakanabeMiyazaki, Japan
    821.7×
  88. 88ŁukówLublin, Poland
    821.7×
  89. 88LegionowoMazovia, Poland
    821.7×
  90. 90Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    811.7×
  91. 90PrzemyślSubcarpathia, Poland
    811.7×
  92. 90YuanlinTaiwan, Taiwan
    811.7×
  93. 93ShintomiMiyazaki, Japan
    811.7×
  94. 94LublinLublin, Poland
    811.7×
  95. 94Jacobo HunterArequipa, Peru
    811.7×
  96. 96ŁaskŁódź Voivodeship, Poland
    811.7×
  97. 96GdyniaPomerania, Poland
    811.7×
  98. 96KotōKumamoto, Japan
    811.7×
  99. 99HitoyoshiKumamoto, Japan
    801.7×
  100. 100ŻyrardówMazovia, Poland
    801.7×
  101. 100FengshanTakao, Taiwan
    801.7×
  102. 100TamanaKumamoto, Japan
    801.7×
  103. 100WłocławekKujawsko-Pomorskie, Poland
    801.7×
  104. 100TalaganteSantiago Metropolitan, Chile
    801.7×
  105. 100HyūgaMiyazaki, Japan
    801.7×
  106. 106OlsztynWarmia-Masuria, Poland
    801.6×
  107. 106Abujalow-cost sensorsFCT, Nigeria
    801.6×
  108. 106KrakówLesser Poland, Poland
    801.6×
  109. 109KaliszGreater Poland, Poland
    801.6×
  110. 109Puerto AysénAysén, Chile
    801.6×
  111. 111KobayashiMiyazaki, Japan
    801.6×
  112. 111West JordanUtah, United States
    801.6×
  113. 113Bang NaBangkok, Thailand
    791.6×
  114. 113Hondomachi-hondoKumamoto, Japan
    791.6×
  115. 115AltamontOregon, United States
    791.6×
  116. 116Skarżysko-KamiennaŚwiętokrzyskie, Poland
    791.6×
  117. 116SaikiOita, Japan
    791.6×
  118. 118GrajewoPodlasie, Poland
    791.6×
  119. 118NantouTaiwan, Taiwan
    791.6×
  120. 118Zielona GóraLubusz, Poland
    791.6×
  121. 121PoznańGreater Poland, Poland
    791.6×
  122. 121San Francisco De BorjaLima region, Peru
    791.6×
  123. 123Kędzierzyn-KoźleOpole Voivodeship, Poland
    781.6×
  124. 123CoyhaiqueAysén, Chile
    781.6×
  125. 125SzczecinWest Pomerania, Poland
    781.6×
  126. 126La SerenaCoquimbo Region, Chile
    781.6×
  127. 127NobeokaMiyazaki, Japan
    781.6×
  128. 127San Pedro de la PazBiobio, Chile
    781.6×
  129. 129IzumiKagoshima, Japan
    771.6×
  130. 129ReginaSaskatchewan, Canada
    771.6×
  131. 131WawerMazovia, Poland
    771.5×
  132. 131Uekimachi-mōnoKumamoto, Japan
    771.5×
  133. 131GdańskPomerania, Poland
    771.5×
  134. 131YauriCuzco Department, Peru
    771.5×
  135. 135RadomMazovia, Poland
    771.5×
  136. 136KanoyaKagoshima, Japan
    771.5×
  137. 136AraoKumamoto, Japan
    771.5×
  138. 138OtwockMazovia, Poland
    771.5×
  139. 139PułtuskMazovia, Poland
    771.5×
  140. 139TalcaMaule Region, Chile
    771.5×
  141. 139CoquimboCoquimbo Region, Chile
    771.5×
  142. 142RadomskoŁódź Voivodeship, Poland
    761.5×
  143. 142KatowiceSilesia, Poland
    761.5×
  144. 144PuliTaiwan, Taiwan
    761.5×
  145. 145HerrimanUtah, United States
    761.5×
  146. 146DouliuTaiwan, Taiwan
    761.5×
  147. 146ErlunTaiwan, Taiwan
    761.5×
  148. 146Jurong WestSingapore
    761.5×
  149. 146KościanGreater Poland, Poland
    761.5×
  150. 146BydgoszczKujawsko-Pomorskie, Poland
    761.5×
  151. 151ObrenovacCentral Serbia, Serbia
    751.5×
  152. 152ZhushanTaiwan, Taiwan
    751.5×
  153. 152ConcepciónBiobio, Chile
    751.5×
  154. 154Jastrzębie ZdrójSilesia, Poland
    751.5×
  155. 155BuziTaiwan, Taiwan
    751.5×
  156. 155KikuchiKumamoto, Japan
    751.5×
  157. 155ZgierzŁódź Voivodeship, Poland
    751.5×
  158. 158KagoshimaKagoshima, Japan
    741.4×
  159. 159SarajevoFederation of B&H, Bosnia and Herzegovina
    741.4×
  160. 159ConcónValparaiso, Chile
    741.4×
  161. 159San ClementeIca, Peru
    741.4×
  162. 162NiskoSubcarpathia, Poland
    741.4×
  163. 162PłockMazovia, Poland
    741.4×
  164. 162ŁódźŁódź Voivodeship, Poland
    741.4×
  165. 165JarosławSubcarpathia, Poland
    741.4×
  166. 166LazarevacCentral Serbia, Serbia
    741.4×
  167. 166BelgradeCentral Serbia, Serbia
    741.4×
  168. 168Kampalalow-cost sensorsCentral Region, Uganda
    731.4×
  169. 168San Tung Chung HangIslands, Hong Kong
    731.4×
  170. 170NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    731.4×
  171. 170RzeszówSubcarpathia, Poland
    731.4×
  172. 170KościerzynaPomerania, Poland
    731.4×
  173. 173Banja LukaSrpska, Bosnia and Herzegovina
    731.4×
  174. 174RacibórzSilesia, Poland
    731.4×
  175. 175XizhouTaiwan, Taiwan
    731.4×
  176. 175ChanghuaTaiwan, Taiwan
    731.4×
  177. 175Gorzów WielkopolskiLubusz, Poland
    731.4×
  178. 175AntofagastaAntofagasta, Chile
    731.4×
  179. 175CondaIdaho, United States
    731.4×
  180. 175KirishimaKagoshima, Japan
    731.4×
  181. 181SendaiKagoshima, Japan
    721.4×
  182. 182DziałdowoWarmia-Masuria, Poland
    721.4×
  183. 183AugustówPodlasie, Poland
    721.4×
  184. 183TokiGifu, Japan
    721.4×
  185. 185TainanTaiwan, Taiwan
    721.4×
  186. 186TaichungTaiwan, Taiwan
    721.3×
  187. 186Tuen MunTuen Mun, Hong Kong
    721.3×
  188. 188BeigangTaiwan, Taiwan
    711.3×
  189. 188QuilpuéValparaiso, Chile
    711.3×
  190. 190ŌmutaFukuoka, Japan
    711.3×
  191. 190Viña del MarValparaiso, Chile
    711.3×
  192. 192ChaozhouTaiwan, Taiwan
    711.3×
  193. 193YamagaKumamoto, Japan
    711.3×
  194. 194PančevoVojvodina, Serbia
    701.3×
  195. 194ErlinTaiwan, Taiwan
    701.3×
  196. 196KushikinoKagoshima, Japan
    701.3×
  197. 197IsahayaNagasaki, Japan
    701.3×
  198. 197Bielsko-BialaSilesia, Poland
    701.3×
  199. 199Ang Mo Kio New TownSingapore
    701.3×
  200. 200ZamośćLublin, Poland
    691.3×

Top 200 of 1,774 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 4, 2024, smogrank.com/history/2024-09-04 (accessed 3 Oct 2026).

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