SmogRank / History / September 28, 2024

Most polluted cities on September 28, 2024

1,723 cities ranked by their average PM2.5 over the day; the worst was Kampala, Uganda, at 128.0 µg/m³. Each city's own local calendar day.

← Kampala 128.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for September 28, 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. 1Kampalalow-cost sensorsCentral Region, Uganda
    2038.5×
  2. 2SalorTashkent Region, Uzbekistan
    1937.7×
  3. 3Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1685.3×
  4. 4Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1513.7×
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    1383.4×
  6. 6AntananarivoAnalamanga, Madagascar
    1343.3×
  7. 7HualpénBiobio, Chile
    1323.2×
  8. 8JakartaJakarta, Indonesia
    1283.1×
  9. 9BeijingBeijing, China
    1233.0×
  10. 10Santa Anita - Los FicusLima region, Peru
    1092.6×
  11. 11Puerto AysénAysén, Chile
    1082.5×
  12. 12VillarricaAraucania, Chile
    1042.5×
  13. 13BaghdadBaghdad, Iraq
    1012.4×
  14. 14Bang NaBangkok, Thailand
    942.1×
  15. 15Wan ChaiWan Chai, Hong Kong
    932.1×
  16. 16Puente AltoSantiago Metropolitan, Chile
    932.1×
  17. 16CuranilahueBiobio, Chile
    932.1×
  18. 18Jacobo HunterArequipa, Peru
    932.1×
  19. 19Dhakalow-cost sensorsDhaka Division, Bangladesh
    922.1×
  20. 20N'DjamenaN’Djaména, Chad
    922.1×
  21. 21GuangzhouGuangdong, China
    912.0×
  22. 22CoyhaiqueAysén, Chile
    902.0×
  23. 23HualquiBiobio, Chile
    902.0×
  24. 24SantiagoSantiago Metropolitan, Chile
    892.0×
  25. 25MaputoMaputo City, Mozambique
    892.0×
  26. 26HanoiHanoi, Vietnam
    881.9×
  27. 27Ban Samae DamBangkok, Thailand
    881.9×
  28. 28NacimientoBiobio, Chile
    871.9×
  29. 29San Francisco De BorjaLima region, Peru
    871.9×
  30. 30Khlong Sam WaBangkok, Thailand
    851.8×
  31. 31RancaguaO'Higgins Region, Chile
    851.8×
  32. 32Nong KhaemBangkok, Thailand
    841.8×
  33. 33Tin Shui WaiYuen Long, Hong Kong
    831.8×
  34. 34Islamabadlow-cost sensorsIslamabad, Pakistan
    831.8×
  35. 35QuillotaValparaiso, Chile
    821.7×
  36. 36Tuen MunTuen Mun, Hong Kong
    821.7×
  37. 37Tsuen WanTsuen Wan, Hong Kong
    821.7×
  38. 37OsornoLos Lagos Region, Chile
    821.7×
  39. 39Kathmandulow-cost sensorsBagmati Province, Nepal
    811.7×
  40. 40Puerto VarasLos Lagos Region, Chile
    811.7×
  41. 41Mong KokYau Tsim Mong District, Hong Kong
    801.7×
  42. 41TalaganteSantiago Metropolitan, Chile
    801.7×
  43. 41La UniónLos Ríos Region, Chile
    801.7×
  44. 44Iloilolow-cost sensorsWestern Visayas, Philippines
    801.6×
  45. 44Kwai ChungKwai Tsing District, Hong Kong
    801.6×
  46. 46Bang KapiBangkok, Thailand
    801.6×
  47. 47CoronelBiobio, Chile
    791.6×
  48. 48TemucoAraucania, Chile
    791.6×
  49. 49Saphan SungBangkok, Thailand
    791.6×
  50. 50CauquenesMaule Region, Chile
    791.6×
  51. 51Khan Na YaoBangkok, Thailand
    791.6×
  52. 52FanlingNorth District, Hong Kong
    781.6×
  53. 52ChillánÑuble, Chile
    781.6×
  54. 54Sham Shui PoSham Shui Po District, Hong Kong
    781.6×
  55. 54QuinteroValparaiso, Chile
    781.6×
  56. 54Puerto MonttLos Lagos Region, Chile
    781.6×
  57. 57AntofagastaAntofagasta, Chile
    781.6×
  58. 58DushanbeDushanbe, Tajikistan
    771.5×
  59. 59AshgabatAshgabat, Turkmenistan
    771.5×
  60. 59AstanaAstana, Kazakhstan
    771.5×
  61. 61Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    761.5×
  62. 61San Tung Chung HangIslands, Hong Kong
    761.5×
  63. 61Los ÁngelesBiobio, Chile
    761.5×
  64. 64RengoO'Higgins Region, Chile
    761.5×
  65. 65Tai PoTai Po, Hong Kong
    761.5×
  66. 66Addis AbabaAddis Ababa, Ethiopia
    761.5×
  67. 66TalcahuanoBiobio, Chile
    761.5×
  68. 68CallaoCallao, Peru
    751.5×
  69. 69Sau Mau PingKwun Tong District, Hong Kong
    751.5×
  70. 70La SerenaCoquimbo Region, Chile
    751.5×
  71. 71BangkokBangkok, Thailand
    751.5×
  72. 71ValdiviaLos Ríos Region, Chile
    751.5×
  73. 71ToméBiobio, Chile
    751.5×
  74. 74QuilpuéValparaiso, Chile
    741.4×
  75. 74Villa Poeta José Gálvez BarrenecheaLima region, Peru
    741.4×
  76. 76CuricóMaule Region, Chile
    741.4×
  77. 76ChiguayanteBiobio, Chile
    741.4×
  78. 76Lak SiBangkok, Thailand
    741.4×
  79. 79ChennaiTamil Nadu, India
    741.4×
  80. 80Sai MaiBangkok, Thailand
    731.4×
  81. 81ConcónValparaiso, Chile
    731.4×
  82. 82VictoriaCentral and Western, Hong Kong
    731.4×
  83. 83FengshanTakao, Taiwan
    721.4×
  84. 83TocopillaAntofagasta, Chile
    721.4×
  85. 85San Pedro de la PazBiobio, Chile
    721.3×
  86. 86AricaArica y Parinacota Region, Chile
    711.3×
  87. 87ChocopeLa Libertad, Peru
    711.3×
  88. 88CalamaAntofagasta, Chile
    701.3×
  89. 89NajuJeollanam-do, South Korea
    701.3×
  90. 89CoquimboCoquimbo Region, Chile
    701.3×
  91. 91YongkangTaiwan, Taiwan
    701.3×
  92. 91Alto HospicioTarapacá, Chile
    701.3×
  93. 93Ban Khlong PrawetBangkok, Thailand
    691.3×
  94. 94CopiapóAtacama, Chile
    691.3×
  95. 95KraljevoCentral Serbia, Serbia
    691.3×
  96. 95ChaozhouTaiwan, Taiwan
    691.3×
  97. 95ChimboteAncash, Peru
    691.3×
  98. 95ConcepciónBiobio, Chile
    691.3×
  99. 99Şabāḩ as SālimMubārak al Kabīr, Kuwait
    691.2×
  100. 99MokpoJeollanam-do, South Korea
    691.2×
  101. 99FontanaCalifornia, United States
    691.2×
  102. 102San ClementeIca, Peru
    691.2×
  103. 103HanfordCalifornia, United States
    691.2×
  104. 104ShanghaiShanghai, China
    681.2×
  105. 105MinamataKumamoto, Japan
    681.2×
  106. 106Nong ChokBangkok, Thailand
    671.2×
  107. 106BogotáBogota D.C., Colombia
    671.2×
  108. 108XinyingTaiwan, Taiwan
    671.2×
  109. 109Koch'angJeollabuk-do, South Korea
    671.2×
  110. 110HonmachiKumamoto, Japan
    661.2×
  111. 111Sha TinSha Tin, Hong Kong
    661.2×
  112. 111TalcaMaule Region, Chile
    661.2×
  113. 113LotaBiobio, Chile
    661.1×
  114. 113AnaheimCalifornia, United States
    661.1×
  115. 113Los AngelesCalifornia, United States
    661.1×
  116. 116BuanJeollabuk-do, South Korea
    661.1×
  117. 116SinanJeollanam-do, South Korea
    661.1×
  118. 118Carsonlow-cost sensorsCalifornia, United States
    661.1×
  119. 119YeonggwangJeollanam-do, South Korea
    651.1×
  120. 119Inglewoodlow-cost sensorsCalifornia, United States
    651.1×
  121. 121TainanTaiwan, Taiwan
    651.1×
  122. 122SendaiKagoshima, Japan
    651.1×
  123. 122YauriCuzco Department, Peru
    651.1×
  124. 124Chiayi CityTaiwan, Taiwan
    651.1×
  125. 125MuanJeollanam-do, South Korea
    641.1×
  126. 125MasanGwangju, South Korea
    641.1×
  127. 125Lat KrabangBangkok, Thailand
    641.1×
  128. 128DelhiDelhi, India
    641.1×
  129. 129Saint PaulMinnesota, United States
    631.0×
  130. 129Jurupa ValleyCalifornia, United States
    631.0×
  131. 131GlendoraCalifornia, United States
    631.0×
  132. 131RiversideCalifornia, United States
    631.0×
  133. 133MiskolcBorsod-Abaúj-Zemplén, Hungary
    631.0×
  134. 134Novi PazarCentral Serbia, Serbia
    631.0×
  135. 135FresnoCalifornia, United States
    631.0×
  136. 136BurnsvilleMinnesota, United States
    621.0×
  137. 137Vientianelow-cost sensorsVientiane Prefecture, Laos
    621.0×
  138. 137GwangjuGwangju, South Korea
    621.0×
  139. 137KimjeJeollabuk-do, South Korea
    621.0×
  140. 137ŌzuKumamoto, Japan
    621.0×
  141. 137Medina Estateslow-cost sensorsGreater Accra, Ghana
    621.0×
  142. 137VisaliaCalifornia, United States
    621.0×
  143. 137AraoKumamoto, Japan
    621.0×
  144. 144ŌtsukiYamanashi, Japan
    621.0×
  145. 144Jurong WestSingapore
    621.0×
  146. 144Hawthornelow-cost sensorsCalifornia, United States
    621.0×
  147. 144Torrancelow-cost sensorsCalifornia, United States
    621.0×
  148. 144JeongeupJeollabuk-do, South Korea
    621.0×
  149. 149DouliuTaiwan, Taiwan
    621.0×
  150. 150NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    611.0×
  151. 151HabikinoOsaka, Japan
    611.0×
  152. 151La Crescenta-Montroselow-cost sensorsCalifornia, United States
    611.0×
  153. 153NantouTaiwan, Taiwan
    611.0×
  154. 154IksanJeollabuk-do, South Korea
    611.0×
  155. 154Ōyanomachi-noboritateKumamoto, Japan
    611.0×
  156. 154IzumiKagoshima, Japan
    611.0×
  157. 154HitoyoshiKumamoto, Japan
    611.0×
  158. 158PuliTaiwan, Taiwan
    611.0×
  159. 158BeigangTaiwan, Taiwan
    611.0×
  160. 158TokiGifu, Japan
    611.0×
  161. 158PortervilleCalifornia, United States
    611.0×
  162. 162MiyakonojōMiyazaki, Japan
    610.9×
  163. 162Lomitalow-cost sensorsCalifornia, United States
    610.9×
  164. 162KotōKumamoto, Japan
    610.9×
  165. 165KushikinoKagoshima, Japan
    600.9×
  166. 166SmederevoCentral Serbia, Serbia
    600.9×
  167. 166KumamotoKumamoto, Japan
    600.9×
  168. 168NišCentral Serbia, Serbia
    600.9×
  169. 168TakanabeMiyazaki, Japan
    600.9×
  170. 168KagoshimaKagoshima, Japan
    600.9×
  171. 168Santa Monicalow-cost sensorsCalifornia, United States
    600.9×
  172. 172KaohsiungTakao, Taiwan
    600.9×
  173. 172ErlunTaiwan, Taiwan
    600.9×
  174. 172ZhushanTaiwan, Taiwan
    600.9×
  175. 172UžiceCentral Serbia, Serbia
    600.9×
  176. 172NogalesSonora, Mexico
    600.9×
  177. 172ClovisCalifornia, United States
    600.9×
  178. 178Saint AndrewsSouth Carolina, United States
    600.9×
  179. 178MissionTexas, United States
    600.9×
  180. 178AyaseKanagawa, Japan
    600.9×
  181. 181ĆuprijaCentral Serbia, Serbia
    590.9×
  182. 181Kaseda-shirakameKagoshima, Japan
    590.9×
  183. 181PasadenaTexas, United States
    590.9×
  184. 181ComptonCalifornia, United States
    590.9×
  185. 181CorcoranCalifornia, United States
    590.9×
  186. 186UtoKumamoto, Japan
    590.9×
  187. 186KobayashiMiyazaki, Japan
    590.9×
  188. 188ŌmutaFukuoka, Japan
    590.9×
  189. 188NobeokaMiyazaki, Japan
    590.9×
  190. 190HyderabadTelangana, India
    590.9×
  191. 190JangheungJeollanam-do, South Korea
    590.9×
  192. 192GunsanJeollabuk-do, South Korea
    590.9×
  193. 192TamanaKumamoto, Japan
    590.9×
  194. 192MifuneKumamoto, Japan
    590.9×
  195. 192BurbankCalifornia, United States
    590.9×
  196. 196TaibaoTaiwan, Taiwan
    580.9×
  197. 196ChiryūAichi, Japan
    580.9×
  198. 196Agouralow-cost sensorsCalifornia, United States
    580.9×
  199. 199ColomboWestern Province, Sri Lanka
    580.9×
  200. 199YuanlinTaiwan, Taiwan
    580.9×

Top 200 of 1,723 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 28, 2024, smogrank.com/history/2024-09-28 (accessed 3 Oct 2026).

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