SmogRank / History / August 25, 2024

Most polluted cities on August 25, 2024

2,395 cities ranked by their average PM2.5 over the day; the worst was Osorno, Chile, at 142.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during August 25, 2024. All episodes.

← Osorno 142.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for August 25, 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. 1OsornoLos Lagos Region, Chile
    2179.5×
  2. 2NacimientoBiobio, Chile
    1947.8×
  3. 3HualpénBiobio, Chile
    1786.3×
  4. 4CuranilahueBiobio, Chile
    1766.1×
  5. 5Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1766.0×
  6. 6ValdiviaLos Ríos Region, Chile
    1745.8×
  7. 7Santa Anita - Los FicusLima region, Peru
    1735.8×
  8. 8VillarricaAraucania, Chile
    1715.6×
  9. 9Puerto VarasLos Lagos Region, Chile
    1715.6×
  10. 10BaghdadBaghdad, Iraq
    1655.0×
  11. 11Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1644.9×
  12. 12CoyhaiqueAysén, Chile
    1634.8×
  13. 13TemucoAraucania, Chile
    1624.7×
  14. 14TalcahuanoBiobio, Chile
    1604.6×
  15. 15RancaguaO'Higgins Region, Chile
    1584.3×
  16. 16Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1584.3×
  17. 17ChillánÑuble, Chile
    1564.2×
  18. 18CoronelBiobio, Chile
    1533.9×
  19. 19SantiagoSantiago Metropolitan, Chile
    1523.8×
  20. 20Puerto MonttLos Lagos Region, Chile
    1453.6×
  21. 21RengoO'Higgins Region, Chile
    1443.5×
  22. 22Los ÁngelesBiobio, Chile
    1413.5×
  23. 23CairoCairo, Egypt
    1353.3×
  24. 24TalaganteSantiago Metropolitan, Chile
    1313.2×
  25. 25CuricóMaule Region, Chile
    1253.0×
  26. 26HualquiBiobio, Chile
    1243.0×
  27. 27Kampalalow-cost sensorsCentral Region, Uganda
    1233.0×
  28. 28San Francisco De BorjaLima region, Peru
    1212.9×
  29. 29Puerto AysénAysén, Chile
    1152.8×
  30. 30Puente AltoSantiago Metropolitan, Chile
    1132.7×
  31. 31JakartaJakarta, Indonesia
    1112.6×
  32. 32TalcaMaule Region, Chile
    1112.6×
  33. 33AlgiersAlgiers, Algeria
    1092.6×
  34. 34NaesŏGyeongsangnam-do, South Korea
    1082.6×
  35. 35Lahorelow-cost sensorsPunjab, Pakistan
    1072.5×
  36. 36GijangBusan, South Korea
    1052.5×
  37. 37ChangwonGyeongsangnam-do, South Korea
    1042.4×
  38. 38Addis AbabaAddis Ababa, Ethiopia
    1032.4×
  39. 39CallaoCallao, Peru
    1032.4×
  40. 40BusanBusan, South Korea
    1022.4×
  41. 41QuilpuéValparaiso, Chile
    1022.4×
  42. 42Islamabadlow-cost sensorsIslamabad, Pakistan
    1022.4×
  43. 42LimaLima Province, Peru
    1022.4×
  44. 44UlsanUlsan, South Korea
    1002.4×
  45. 45UngsangGyeongsangnam-do, South Korea
    992.3×
  46. 46GwangyangJeollanam-do, South Korea
    992.3×
  47. 47TongyeongGyeongsangnam-do, South Korea
    982.3×
  48. 48KimhaeGyeongsangnam-do, South Korea
    972.3×
  49. 49PubalGyeonggi-do, South Korea
    972.3×
  50. 50GyeongjuGyeongsangbuk-do, South Korea
    972.2×
  51. 50HadongGyeongsangnam-do, South Korea
    972.2×
  52. 52KolkataWest Bengal, India
    972.2×
  53. 53Villa Poeta José Gálvez BarrenecheaLima region, Peru
    962.2×
  54. 54ChiguayanteBiobio, Chile
    952.2×
  55. 55HanamGyeonggi-do, South Korea
    942.2×
  56. 56WŏnjuGangwon-do, South Korea
    942.1×
  57. 56ToméBiobio, Chile
    942.1×
  58. 56QuillotaValparaiso, Chile
    942.1×
  59. 56ConcepciónBiobio, Chile
    942.1×
  60. 60PohangGyeongsangbuk-do, South Korea
    932.1×
  61. 61YangsanGyeongsangnam-do, South Korea
    932.1×
  62. 62ChangnyeongGyeongsangnam-do, South Korea
    932.1×
  63. 63YeosuJeollanam-do, South Korea
    922.1×
  64. 64ChinjuGyeongsangnam-do, South Korea
    912.0×
  65. 65SeoulSeoul, South Korea
    902.0×
  66. 65San Pedro de la PazBiobio, Chile
    902.0×
  67. 67Ban Talat BuengChon Buri, Thailand
    902.0×
  68. 67Icheon-siGyeonggi-do, South Korea
    902.0×
  69. 69CauquenesMaule Region, Chile
    902.0×
  70. 70DushanbeDushanbe, Tajikistan
    902.0×
  71. 70GoseongGyeongsangnam-do, South Korea
    902.0×
  72. 72KwangyangJeollanam-do, South Korea
    892.0×
  73. 73GwangmyeongGyeonggi-do, South Korea
    892.0×
  74. 74IncheonIncheon, South Korea
    881.9×
  75. 75Guri-siGyeonggi-do, South Korea
    881.9×
  76. 75GeojeGyeongsangnam-do, South Korea
    881.9×
  77. 77Gimpo-siGyeonggi-do, South Korea
    871.9×
  78. 78AntofagastaAntofagasta, Chile
    871.9×
  79. 79NonsanChungcheongnam-do, South Korea
    861.9×
  80. 80Ganghwa-gunIncheon, South Korea
    851.8×
  81. 81YeonilGyeongsangbuk-do, South Korea
    851.8×
  82. 81HwadoGyeonggi-do, South Korea
    851.8×
  83. 83YeojuGyeonggi-do, South Korea
    841.8×
  84. 83QuinteroValparaiso, Chile
    841.8×
  85. 85NamyangjuGyeonggi-do, South Korea
    831.8×
  86. 86BeijingBeijing, China
    831.8×
  87. 87PyeongtaekGyeonggi-do, South Korea
    831.7×
  88. 88MiryangGyeongsangnam-do, South Korea
    821.7×
  89. 88RedfordMichigan, United States
    821.7×
  90. 90OkcheonNorth Chungcheong, South Korea
    821.7×
  91. 91JeongeupJeollabuk-do, South Korea
    821.7×
  92. 92SuncheonJeollanam-do, South Korea
    821.7×
  93. 93Hwaseong-siGyeonggi-do, South Korea
    811.7×
  94. 94Viña del MarValparaiso, Chile
    811.7×
  95. 95Bucheon-siGyeonggi-do, South Korea
    811.7×
  96. 96WanjuJeollabuk-do, South Korea
    811.7×
  97. 97Kathmandulow-cost sensorsBagmati Province, Nepal
    801.7×
  98. 98Ansan-siGyeonggi-do, South Korea
    801.7×
  99. 99Goyang-siGyeonggi-do, South Korea
    801.6×
  100. 99SinhyeonGyeongsangnam-do, South Korea
    801.6×
  101. 99LotaBiobio, Chile
    801.6×
  102. 102HayangGyeongsangbuk-do, South Korea
    801.6×
  103. 103MokpoJeollanam-do, South Korea
    801.6×
  104. 103Jeju CityJeju-do, South Korea
    801.6×
  105. 103San RoqueAndalusia, Spain
    801.6×
  106. 106TangjinChungcheongnam-do, South Korea
    801.6×
  107. 107DublinOhio, United States
    791.6×
  108. 108KinzanChungcheongnam-do, South Korea
    791.6×
  109. 108ChangsuJeollabuk-do, South Korea
    791.6×
  110. 110IksanJeollabuk-do, South Korea
    781.6×
  111. 111YesanChungcheongnam-do, South Korea
    781.6×
  112. 111Anyang-siGyeonggi-do, South Korea
    781.6×
  113. 111LorcaMurcia, Spain
    781.6×
  114. 111Columbialow-cost sensorsMissouri, United States
    781.6×
  115. 115OsanGyeonggi-do, South Korea
    781.6×
  116. 115La Línea de la ConcepciónAndalusia, Spain
    781.6×
  117. 117NamsaJeollabuk-do, South Korea
    781.6×
  118. 118BeolgyoJeollanam-do, South Korea
    781.6×
  119. 118Nepeanlow-cost sensorsOntario, Canada
    781.6×
  120. 120EisenGyeongsangbuk-do, South Korea
    771.5×
  121. 120ChungjuNorth Chungcheong, South Korea
    771.5×
  122. 120AndongGyeongsangbuk-do, South Korea
    771.5×
  123. 123JinchengFukien, Taiwan
    771.5×
  124. 123Yangp'yŏngGyeonggi-do, South Korea
    771.5×
  125. 123YangjuGyeonggi-do, South Korea
    771.5×
  126. 123SuwonGyeonggi-do, South Korea
    771.5×
  127. 123Chinch'ŏnNorth Chungcheong, South Korea
    771.5×
  128. 128AsanChungcheongnam-do, South Korea
    771.5×
  129. 129BuanJeollabuk-do, South Korea
    761.5×
  130. 129JungpyongNorth Chungcheong, South Korea
    761.5×
  131. 129CartagenaMurcia, Spain
    761.5×
  132. 129ConcónValparaiso, Chile
    761.5×
  133. 133PrešovPrešov Region, Slovakia
    761.5×
  134. 134YecheonGyeongsangbuk-do, South Korea
    761.5×
  135. 134MasanGwangju, South Korea
    761.5×
  136. 134Jinan-gunJeollabuk-do, South Korea
    761.5×
  137. 137Karachilow-cost sensorsSindh, Pakistan
    761.5×
  138. 138Uijeongbu-siGyeonggi-do, South Korea
    751.5×
  139. 139YeongdongNorth Chungcheong, South Korea
    751.5×
  140. 139NangenJeollabuk-do, South Korea
    751.5×
  141. 139Hongch’ŏnGangwon-do, South Korea
    751.5×
  142. 142GunsanJeollabuk-do, South Korea
    751.5×
  143. 143SeonghwanChungcheongnam-do, South Korea
    751.5×
  144. 143KimjeJeollabuk-do, South Korea
    751.5×
  145. 143GaigeturiJeju-do, South Korea
    751.5×
  146. 143MurciaMurcia, Spain
    751.5×
  147. 143PúchovTrenčín Region, Slovakia
    751.5×
  148. 143West MifflinPennsylvania, United States
    751.5×
  149. 149GwangjuGyeonggi-do, South Korea
    741.4×
  150. 149TocopillaAntofagasta, Chile
    741.4×
  151. 151KomárnoNitra Region, Slovakia
    741.4×
  152. 152GwangjuGwangju, South Korea
    741.4×
  153. 152Seongnam-siGyeonggi-do, South Korea
    741.4×
  154. 152Accralow-cost sensorsGreater Accra, Ghana
    741.4×
  155. 152La SerenaCoquimbo Region, Chile
    741.4×
  156. 152Jacobo HunterArequipa, Peru
    741.4×
  157. 157NeietsuGangwon-do, South Korea
    741.4×
  158. 157DamyangJeollanam-do, South Korea
    741.4×
  159. 159KoesanNorth Chungcheong, South Korea
    741.4×
  160. 159GimcheonGyeongsangbuk-do, South Korea
    741.4×
  161. 159HaenamJeollanam-do, South Korea
    741.4×
  162. 159BartlettTennessee, United States
    741.4×
  163. 163GumiGyeongsangbuk-do, South Korea
    741.4×
  164. 163JeonjuJeollabuk-do, South Korea
    741.4×
  165. 163Cheongsong gunGyeongsangbuk-do, South Korea
    741.4×
  166. 163Cheongju-siNorth Chungcheong, South Korea
    741.4×
  167. 163YŏnmuChungcheongnam-do, South Korea
    741.4×
  168. 168JaénAndalusia, Spain
    731.4×
  169. 169Bang NaBangkok, Thailand
    731.4×
  170. 169CieszynSilesia, Poland
    731.4×
  171. 171BoseongJeollanam-do, South Korea
    731.4×
  172. 172Gyeongsan-siGyeongsangbuk-do, South Korea
    721.4×
  173. 172SereďTrnava Region, Slovakia
    721.4×
  174. 174Donghae CityGangwon-do, South Korea
    721.3×
  175. 174ColumbusOhio, United States
    721.3×
  176. 176Molina de SeguraMurcia, Spain
    711.3×
  177. 176MelillaMelilla, Spain
    711.3×
  178. 176PezinokBratislava Region, Slovakia
    711.3×
  179. 179YeongjuGyeongsangbuk-do, South Korea
    711.3×
  180. 179NitraNitra Region, Slovakia
    711.3×
  181. 181HwasunJeollanam-do, South Korea
    711.3×
  182. 181CheorwonGangwon-do, South Korea
    711.3×
  183. 181MartinŽilina Region, Slovakia
    711.3×
  184. 184NajuJeollanam-do, South Korea
    711.3×
  185. 184Medina Estateslow-cost sensorsGreater Accra, Ghana
    711.3×
  186. 186CantonOhio, United States
    711.3×
  187. 186OregonOhio, United States
    711.3×
  188. 188GongjuChungcheongnam-do, South Korea
    711.3×
  189. 188Liptovský Mikulᚎilina Region, Slovakia
    711.3×
  190. 188Falconara MarittimaThe Marches, Italy
    711.3×
  191. 191DaejeonDaejeon, South Korea
    701.3×
  192. 191CheonanChungcheongnam-do, South Korea
    701.3×
  193. 191Barrio de PeralMurcia, Spain
    701.3×
  194. 194TratTrat, Thailand
    701.3×
  195. 194AnseongGyeonggi-do, South Korea
    701.3×
  196. 194TrenčínTrenčín Region, Slovakia
    701.3×
  197. 197KošiceKošice Region, Slovakia
    701.3×
  198. 198GuangzhouGuangdong, China
    701.3×
  199. 198SangjuGyeongsangbuk-do, South Korea
    701.3×
  200. 198ZvolenBanská Bystrica Region, Slovakia
    701.3×

Top 200 of 2,395 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, August 25, 2024, smogrank.com/history/2024-08-25 (accessed 3 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.