SmogRank / History / August 21, 2024

Most polluted cities on August 21, 2024

1,743 cities ranked by their average PM2.5 over the day; the worst was Kinshasa, Democratic Republic of the Congo, at 110.0 µg/m³. Each city's own local calendar day.

← Kinshasa 110.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for August 21, 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
    1897.3×
  2. 2CoyhaiqueAysén, Chile
    1756.0×
  3. 3OsornoLos Lagos Region, Chile
    1695.4×
  4. 4Puerto VarasLos Lagos Region, Chile
    1655.0×
  5. 5VillarricaAraucania, Chile
    1604.6×
  6. 6KolkataWest Bengal, India
    1584.4×
  7. 7RengoO'Higgins Region, Chile
    1574.3×
  8. 8CuricóMaule Region, Chile
    1564.2×
  9. 9La UniónLos Ríos Region, Chile
    1564.2×
  10. 10ValdiviaLos Ríos Region, Chile
    1564.2×
  11. 11RancaguaO'Higgins Region, Chile
    1554.1×
  12. 11NacimientoBiobio, Chile
    1554.1×
  13. 13HualpénBiobio, Chile
    1554.1×
  14. 14JakartaJakarta, Indonesia
    1523.8×
  15. 15Fort McMurrayAlberta, Canada
    1513.7×
  16. 16Kampalalow-cost sensorsCentral Region, Uganda
    1473.6×
  17. 17Puerto MonttLos Lagos Region, Chile
    1423.5×
  18. 18Santa Anita - Los FicusLima region, Peru
    1423.5×
  19. 19Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    1393.4×
  20. 20Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1363.3×
  21. 21CairoCairo, Egypt
    1283.1×
  22. 22TalcaMaule Region, Chile
    1253.0×
  23. 23Lahorelow-cost sensorsPunjab, Pakistan
    1243.0×
  24. 24Dhakalow-cost sensorsDhaka Division, Bangladesh
    1192.9×
  25. 24DushanbeDushanbe, Tajikistan
    1192.9×
  26. 26Puente AltoSantiago Metropolitan, Chile
    1162.8×
  27. 27TemucoAraucania, Chile
    1132.7×
  28. 28CuranilahueBiobio, Chile
    1112.6×
  29. 29Puerto AysénAysén, Chile
    1072.5×
  30. 30HualquiBiobio, Chile
    1032.4×
  31. 31Los ÁngelesBiobio, Chile
    1022.4×
  32. 32BaghdadBaghdad, Iraq
    1012.4×
  33. 33Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    992.3×
  34. 34São PauloSão Paulo, Brazil
    992.3×
  35. 35ChillánÑuble, Chile
    962.2×
  36. 36Asunciónlow-cost sensorsAsuncion, Paraguay
    962.2×
  37. 37SantiagoSantiago Metropolitan, Chile
    942.1×
  38. 38MaputoMaputo City, Mozambique
    932.1×
  39. 39OlsztynWarmia-Masuria, Poland
    902.0×
  40. 40QuillotaValparaiso, Chile
    871.9×
  41. 41BakuBaki, Azerbaijan
    861.8×
  42. 42Baton RougeLouisiana, United States
    851.8×
  43. 43Grande PrairieAlberta, Canada
    841.8×
  44. 44Iloilolow-cost sensorsWestern Visayas, Philippines
    831.8×
  45. 45RangioraCanterbury, New Zealand
    821.7×
  46. 46San Francisco De BorjaLima region, Peru
    811.7×
  47. 47LafayetteLouisiana, United States
    801.6×
  48. 48CauquenesMaule Region, Chile
    791.6×
  49. 49HyderabadTelangana, India
    781.6×
  50. 49Bang NaBangkok, Thailand
    781.6×
  51. 51Addis AbabaAddis Ababa, Ethiopia
    771.6×
  52. 51QuilpuéValparaiso, Chile
    771.6×
  53. 53CallaoCallao, Peru
    771.5×
  54. 54LimaLima Province, Peru
    771.5×
  55. 55CoronelBiobio, Chile
    771.5×
  56. 56DelhiDelhi, India
    761.5×
  57. 56YauriCuzco Department, Peru
    761.5×
  58. 58TalaganteSantiago Metropolitan, Chile
    741.4×
  59. 59QuinteroValparaiso, Chile
    741.4×
  60. 60Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    741.4×
  61. 61Jacobo HunterArequipa, Peru
    731.4×
  62. 61HattiesburgMississippi, United States
    731.4×
  63. 61ConroeTexas, United States
    731.4×
  64. 64Wan ChaiWan Chai, Hong Kong
    731.4×
  65. 65SulphurLouisiana, United States
    721.4×
  66. 66MumbaiMaharashtra, India
    721.4×
  67. 67ToméBiobio, Chile
    721.4×
  68. 68Abujalow-cost sensorsFCT, Nigeria
    721.3×
  69. 68ConcónValparaiso, Chile
    721.3×
  70. 70Karachilow-cost sensorsSindh, Pakistan
    711.3×
  71. 70Port ArthurTexas, United States
    711.3×
  72. 72DallasTexas, United States
    711.3×
  73. 73TalcahuanoBiobio, Chile
    711.3×
  74. 73ChiguayanteBiobio, Chile
    711.3×
  75. 75AntofagastaAntofagasta, Chile
    701.3×
  76. 75Lat KrabangBangkok, Thailand
    701.3×
  77. 77Kathmandulow-cost sensorsBagmati Province, Nepal
    701.3×
  78. 78TocopillaAntofagasta, Chile
    701.3×
  79. 79San Pedro de la PazBiobio, Chile
    701.3×
  80. 80AlgiersAlgiers, Algeria
    691.3×
  81. 81KennerLouisiana, United States
    691.3×
  82. 82Islamabadlow-cost sensorsIslamabad, Pakistan
    691.2×
  83. 83AricaArica y Parinacota Region, Chile
    691.2×
  84. 83AyaseKanagawa, Japan
    691.2×
  85. 85ŌtsukiYamanashi, Japan
    691.2×
  86. 86CalamaAntofagasta, Chile
    681.2×
  87. 87SaginawTexas, United States
    681.2×
  88. 88CopiapóAtacama, Chile
    681.2×
  89. 89ConcepciónBiobio, Chile
    681.2×
  90. 89OlatheKansas, United States
    681.2×
  91. 91Viña del MarValparaiso, Chile
    671.2×
  92. 92CoquimboCoquimbo Region, Chile
    671.2×
  93. 93MooreOklahoma, United States
    671.2×
  94. 94HoustonTexas, United States
    671.2×
  95. 95LublinLublin, Poland
    661.2×
  96. 95West FargoNorth Dakota, United States
    661.2×
  97. 97KatowiceSilesia, Poland
    661.1×
  98. 97La SerenaCoquimbo Region, Chile
    661.1×
  99. 99BeijingBeijing, China
    651.1×
  100. 99TakasakiGunma, Japan
    651.1×
  101. 99Accralow-cost sensorsGreater Accra, Ghana
    651.1×
  102. 99Jastrzębie ZdrójSilesia, Poland
    651.1×
  103. 99DerbyKansas, United States
    651.1×
  104. 99Fort WorthTexas, United States
    651.1×
  105. 105CorsicanaTexas, United States
    651.1×
  106. 106Saint CloudMinnesota, United States
    651.1×
  107. 106TsuchiuraIbaraki, Japan
    651.1×
  108. 108MiskolcBorsod-Abaúj-Zemplén, Hungary
    651.1×
  109. 108GotembaShizuoka, Japan
    651.1×
  110. 108RacibórzSilesia, Poland
    651.1×
  111. 111Samut SakhonSamut Sakhon, Thailand
    651.1×
  112. 111Phra PradaengSamut Prakan, Thailand
    651.1×
  113. 111Columbialow-cost sensorsMissouri, United States
    651.1×
  114. 111WatertownSouth Dakota, United States
    651.1×
  115. 115SpringdaleArkansas, United States
    641.1×
  116. 116TimaruCanterbury, New Zealand
    641.1×
  117. 117GulfportMississippi, United States
    641.1×
  118. 117EdmondOklahoma, United States
    641.1×
  119. 117Imperial BeachCalifornia, United States
    641.1×
  120. 120OtwockMazovia, Poland
    641.1×
  121. 121NipomoCalifornia, United States
    641.1×
  122. 121ChikuseiIbaraki, Japan
    641.1×
  123. 123ObrenovacCentral Serbia, Serbia
    631.1×
  124. 124ShreveportLouisiana, United States
    631.0×
  125. 124Khan Na YaoBangkok, Thailand
    631.0×
  126. 126Ponca CityOklahoma, United States
    631.0×
  127. 127ChalmetteLouisiana, United States
    631.0×
  128. 127Oklahoma CityOklahoma, United States
    631.0×
  129. 127EdmontonAlberta, Canada
    631.0×
  130. 130AiharaKanagawa, Japan
    631.0×
  131. 130TopekaKansas, United States
    631.0×
  132. 130McAlesterOklahoma, United States
    631.0×
  133. 133BaytownTexas, United States
    631.0×
  134. 133Chula VistaCalifornia, United States
    631.0×
  135. 135TulsaOklahoma, United States
    621.0×
  136. 135BellevueNebraska, United States
    621.0×
  137. 135Dodge CityKansas, United States
    621.0×
  138. 138FairhopeAlabama, United States
    621.0×
  139. 138DentonTexas, United States
    621.0×
  140. 140Konstancin-JeziornaMazovia, Poland
    621.0×
  141. 140MinamirinkanKanagawa, Japan
    621.0×
  142. 140Kansas CityKansas, United States
    621.0×
  143. 140PascagoulaMississippi, United States
    621.0×
  144. 140BrookingsSouth Dakota, United States
    621.0×
  145. 145AntananarivoAnalamanga, Madagascar
    621.0×
  146. 145JacksonMississippi, United States
    621.0×
  147. 145PasadenaTexas, United States
    621.0×
  148. 145Saint MichaelMinnesota, United States
    621.0×
  149. 145Sioux FallsSouth Dakota, United States
    621.0×
  150. 150RadomMazovia, Poland
    621.0×
  151. 150PruszkówMazovia, Poland
    621.0×
  152. 150ŌmeTokyo, Japan
    621.0×
  153. 153Skarżysko-KamiennaŚwiętokrzyskie, Poland
    611.0×
  154. 153ZemunCentral Serbia, Serbia
    611.0×
  155. 153ŁódźŁódź Voivodeship, Poland
    611.0×
  156. 153KrakówLesser Poland, Poland
    611.0×
  157. 153MankatoMinnesota, United States
    611.0×
  158. 153OmahaNebraska, United States
    611.0×
  159. 159KutnoŁódź Voivodeship, Poland
    611.0×
  160. 160ZamośćLublin, Poland
    611.0×
  161. 160KasaokaOkayama, Japan
    611.0×
  162. 160AtamiShizuoka, Japan
    611.0×
  163. 160Novi SadVojvodina, Serbia
    611.0×
  164. 164Yerevanlow-cost sensorsYerevan, Armenia
    611.0×
  165. 164KielceŚwiętokrzyskie, Poland
    611.0×
  166. 164Alto HospicioTarapacá, Chile
    611.0×
  167. 164MiamiFlorida, United States
    611.0×
  168. 164GainesvilleGeorgia, United States
    611.0×
  169. 164El PasoTexas, United States
    611.0×
  170. 170Bang Bo DistrictSamut Prakan, Thailand
    611.0×
  171. 170ChigasakiKanagawa, Japan
    611.0×
  172. 170SarajevoFederation of B&H, Bosnia and Herzegovina
    611.0×
  173. 170Villa Poeta José Gálvez BarrenecheaLima region, Peru
    611.0×
  174. 170Los AngelesCalifornia, United States
    611.0×
  175. 170IrumaSaitama, Japan
    611.0×
  176. 170Saphan SungBangkok, Thailand
    611.0×
  177. 177LegionowoMazovia, Poland
    600.9×
  178. 177ChimboteAncash, Peru
    600.9×
  179. 177Ferry PassFlorida, United States
    600.9×
  180. 180ShanghaiShanghai, China
    600.9×
  181. 180BirminghamAlabama, United States
    600.9×
  182. 180McDonoughGeorgia, United States
    600.9×
  183. 180ShakopeeMinnesota, United States
    600.9×
  184. 184N'DjamenaN’Djaména, Chad
    600.9×
  185. 184Prince AlbertSaskatchewan, Canada
    600.9×
  186. 184Prince GeorgeBritish Columbia, Canada
    600.9×
  187. 187HachiōjiTokyo, Japan
    600.9×
  188. 187GyōdaSaitama, Japan
    600.9×
  189. 187BydgoszczKujawsko-Pomorskie, Poland
    600.9×
  190. 187LawrencevilleGeorgia, United States
    600.9×
  191. 191BangkokBangkok, Thailand
    600.9×
  192. 191MorohongōSaitama, Japan
    600.9×
  193. 191Jurong WestSingapore
    600.9×
  194. 191LotaBiobio, Chile
    600.9×
  195. 191New OrleansLouisiana, United States
    600.9×
  196. 196WarsawMazovia, Poland
    590.9×
  197. 196LazarevacCentral Serbia, Serbia
    590.9×
  198. 196BelgradeCentral Serbia, Serbia
    590.9×
  199. 196IwataShizuoka, Japan
    590.9×
  200. 196FutogVojvodina, Serbia
    590.9×

Top 200 of 1,743 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 21, 2024, smogrank.com/history/2024-08-21 (accessed 3 Oct 2026).

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