SmogRank / History / August 15, 2024

Most polluted cities on August 15, 2024

1,786 cities ranked by their average PM2.5 over the day; the worst was Swift Current, Canada, at 137.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during August 15, 2024. All episodes.

← Swift Current 137.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for August 15, 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. 1Swift CurrentSaskatchewan, Canada
    2129.1×
  2. 2VillarricaAraucania, Chile
    1937.7×
  3. 3Santa Anita - Los FicusLima region, Peru
    1897.3×
  4. 4Puerto VarasLos Lagos Region, Chile
    1867.0×
  5. 5EdmontonAlberta, Canada
    1857.0×
  6. 6SaskatoonSaskatchewan, Canada
    1816.6×
  7. 7OsornoLos Lagos Region, Chile
    1816.5×
  8. 8Medicine HatAlberta, Canada
    1675.2×
  9. 9Red DeerAlberta, Canada
    1665.2×
  10. 10ValdiviaLos Ríos Region, Chile
    1624.8×
  11. 11Grande PrairieAlberta, Canada
    1614.6×
  12. 12Puente AltoSantiago Metropolitan, Chile
    1604.6×
  13. 13St. AlbertAlberta, Canada
    1604.5×
  14. 14AirdrieAlberta, Canada
    1584.3×
  15. 15SantiagoSantiago Metropolitan, Chile
    1574.3×
  16. 16La UniónLos Ríos Region, Chile
    1564.2×
  17. 17BaghdadBaghdad, Iraq
    1554.1×
  18. 18ReginaSaskatchewan, Canada
    1554.1×
  19. 19CalgaryAlberta, Canada
    1523.8×
  20. 20RengoO'Higgins Region, Chile
    1523.8×
  21. 21CuricóMaule Region, Chile
    1523.8×
  22. 22Sherwood ParkAlberta, Canada
    1483.6×
  23. 23JakartaJakarta, Indonesia
    1463.6×
  24. 24RancaguaO'Higgins Region, Chile
    1463.6×
  25. 25TemucoAraucania, Chile
    1413.5×
  26. 26DushanbeDushanbe, Tajikistan
    1383.4×
  27. 27AshgabatAshgabat, Turkmenistan
    1333.2×
  28. 28Puerto AysénAysén, Chile
    1222.9×
  29. 29TalaganteSantiago Metropolitan, Chile
    1212.9×
  30. 30Puerto MonttLos Lagos Region, Chile
    1192.9×
  31. 31KolkataWest Bengal, India
    1182.8×
  32. 31Fort McMurrayAlberta, Canada
    1182.8×
  33. 33Lahorelow-cost sensorsPunjab, Pakistan
    1172.8×
  34. 34RangioraCanterbury, New Zealand
    1172.8×
  35. 35Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1172.8×
  36. 36Asunciónlow-cost sensorsAsuncion, Paraguay
    1132.7×
  37. 37CoyhaiqueAysén, Chile
    1112.6×
  38. 38Kampalalow-cost sensorsCentral Region, Uganda
    1102.6×
  39. 38Dhakalow-cost sensorsDhaka Division, Bangladesh
    1102.6×
  40. 40RadomskoŁódź Voivodeship, Poland
    1082.6×
  41. 41Los ÁngelesBiobio, Chile
    1082.5×
  42. 41LethbridgeAlberta, Canada
    1082.5×
  43. 43HualpénBiobio, Chile
    1072.5×
  44. 44CoronelBiobio, Chile
    1042.4×
  45. 45AntananarivoAnalamanga, Madagascar
    1032.4×
  46. 46ChiguayanteBiobio, Chile
    1002.4×
  47. 47ToméBiobio, Chile
    1002.3×
  48. 48BeijingBeijing, China
    992.3×
  49. 49CairoCairo, Egypt
    992.3×
  50. 50São PauloSão Paulo, Brazil
    982.3×
  51. 51Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    972.3×
  52. 52QuilpuéValparaiso, Chile
    942.1×
  53. 52QuillotaValparaiso, Chile
    942.1×
  54. 54CholulaPuebla, Mexico
    932.1×
  55. 55TalcaMaule Region, Chile
    922.1×
  56. 56Iloilolow-cost sensorsWestern Visayas, Philippines
    912.1×
  57. 57Nepeanlow-cost sensorsOntario, Canada
    912.0×
  58. 58Prince GeorgeBritish Columbia, Canada
    912.0×
  59. 59CuranilahueBiobio, Chile
    912.0×
  60. 60SaguenayQuebec, Canada
    902.0×
  61. 61Viña del MarValparaiso, Chile
    892.0×
  62. 62ManamaManama, Bahrain
    881.9×
  63. 63CauquenesMaule Region, Chile
    871.9×
  64. 64ConcepciónBiobio, Chile
    861.9×
  65. 65N'DjamenaN’Djaména, Chad
    851.8×
  66. 66QuinteroValparaiso, Chile
    831.8×
  67. 67SarajevoFederation of B&H, Bosnia and Herzegovina
    831.7×
  68. 68AntofagastaAntofagasta, Chile
    821.7×
  69. 69Banja LukaSrpska, Bosnia and Herzegovina
    811.7×
  70. 70AltamontOregon, United States
    801.7×
  71. 71ChimboteAncash, Peru
    801.6×
  72. 71West MifflinPennsylvania, United States
    801.6×
  73. 73ChillánÑuble, Chile
    801.6×
  74. 74ShawiniganQuebec, Canada
    801.6×
  75. 75RedfordMichigan, United States
    791.6×
  76. 76ChocopeLa Libertad, Peru
    791.6×
  77. 76TalcahuanoBiobio, Chile
    791.6×
  78. 78Hondomachi-hondoKumamoto, Japan
    781.6×
  79. 79TocopillaAntofagasta, Chile
    771.5×
  80. 80Abujalow-cost sensorsFCT, Nigeria
    771.5×
  81. 81ConcónValparaiso, Chile
    771.5×
  82. 81BartlettTennessee, United States
    771.5×
  83. 83SteubenvilleOhio, United States
    771.5×
  84. 84Wan ChaiWan Chai, Hong Kong
    761.5×
  85. 84MontréalQuebec, Canada
    761.5×
  86. 86TangjinChungcheongnam-do, South Korea
    761.5×
  87. 86AraoKumamoto, Japan
    761.5×
  88. 88Ganghwa-gunIncheon, South Korea
    761.5×
  89. 89MaputoMaputo City, Mozambique
    761.5×
  90. 89ŌzuKumamoto, Japan
    761.5×
  91. 89PittsburghPennsylvania, United States
    761.5×
  92. 92Bang NaBangkok, Thailand
    751.5×
  93. 93TamanaKumamoto, Japan
    751.5×
  94. 94BrossardQuebec, Canada
    741.4×
  95. 95ŌmutaFukuoka, Japan
    741.4×
  96. 96DorvalQuebec, Canada
    741.4×
  97. 96Sorel-TracyQuebec, Canada
    741.4×
  98. 98JohnstownPennsylvania, United States
    741.4×
  99. 98WilkinsburgPennsylvania, United States
    741.4×
  100. 100ZapopanJalisco, Mexico
    741.4×
  101. 101AugustaGeorgia, United States
    731.4×
  102. 102Jacobo HunterArequipa, Peru
    731.4×
  103. 102Trois-RivièresQuebec, Canada
    731.4×
  104. 102L'Ancienne-LoretteQuebec, Canada
    731.4×
  105. 105MukdahanMukdahan, Thailand
    731.4×
  106. 105Amnat CharoenAmnat Charoen, Thailand
    731.4×
  107. 105YesanChungcheongnam-do, South Korea
    731.4×
  108. 105ObitaNagasaki, Japan
    731.4×
  109. 105TolucaMéxico, Mexico
    731.4×
  110. 105DrummondvilleQuebec, Canada
    731.4×
  111. 105QuébecQuebec, Canada
    731.4×
  112. 112Hwaseong-siGyeonggi-do, South Korea
    731.4×
  113. 112KumamotoKumamoto, Japan
    731.4×
  114. 112McKeesportPennsylvania, United States
    731.4×
  115. 115BostonMassachusetts, United States
    731.4×
  116. 116KotōKumamoto, Japan
    721.4×
  117. 117IncheonIncheon, South Korea
    721.4×
  118. 117PortsmouthNew Hampshire, United States
    721.4×
  119. 117San Pedro de la PazBiobio, Chile
    721.4×
  120. 120AricaArica y Parinacota Region, Chile
    721.4×
  121. 121Lat KrabangBangkok, Thailand
    721.4×
  122. 122Addis AbabaAddis Ababa, Ethiopia
    721.3×
  123. 123ShanghaiShanghai, China
    711.3×
  124. 123Gimpo-siGyeonggi-do, South Korea
    711.3×
  125. 123TimaruCanterbury, New Zealand
    711.3×
  126. 123Weirton HeightsWest Virginia, United States
    711.3×
  127. 123HamiltonOntario, Canada
    711.3×
  128. 123YamanashiYamanashi, Japan
    711.3×
  129. 129KalasinKalasin, Thailand
    711.3×
  130. 129NagasakiNagasaki, Japan
    711.3×
  131. 131Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    711.3×
  132. 132IsahayaNagasaki, Japan
    711.3×
  133. 132West MemphisArkansas, United States
    711.3×
  134. 132WeirtonWest Virginia, United States
    711.3×
  135. 135Ban Talat BuengChon Buri, Thailand
    711.3×
  136. 135BirminghamAlabama, United States
    711.3×
  137. 137SaikiOita, Japan
    701.3×
  138. 137AshburnVirginia, United States
    701.3×
  139. 137LynnMassachusetts, United States
    701.3×
  140. 137MiltonOntario, Canada
    701.3×
  141. 141CantonOhio, United States
    701.3×
  142. 141OregonOhio, United States
    701.3×
  143. 141WarrenOhio, United States
    701.3×
  144. 144BrocktonMassachusetts, United States
    701.3×
  145. 144SherbrookeQuebec, Canada
    701.3×
  146. 146Ōyanomachi-noboritateKumamoto, Japan
    701.3×
  147. 146KureHiroshima, Japan
    701.3×
  148. 146GranbyQuebec, Canada
    701.3×
  149. 146San Salvador TizatlalliMéxico, Mexico
    701.3×
  150. 150NanNan, Thailand
    701.3×
  151. 150KikuchiKumamoto, Japan
    701.3×
  152. 150CopiapóAtacama, Chile
    701.3×
  153. 153TogitsuNagasaki, Japan
    691.3×
  154. 154BrantfordOntario, Canada
    691.3×
  155. 155ChristchurchCanterbury, New Zealand
    691.3×
  156. 155ColumbusOhio, United States
    691.3×
  157. 155HaverhillMassachusetts, United States
    691.3×
  158. 158ŌmuraNagasaki, Japan
    691.2×
  159. 158Jurong WestSingapore
    691.2×
  160. 158ShenyangLiaoning, China
    691.2×
  161. 158DublinOhio, United States
    691.2×
  162. 162LowellMassachusetts, United States
    691.2×
  163. 162DearbornMichigan, United States
    691.2×
  164. 164GunsanJeollabuk-do, South Korea
    691.2×
  165. 164Uekimachi-mōnoKumamoto, Japan
    691.2×
  166. 164TakeharaHiroshima, Japan
    691.2×
  167. 164Fall RiverMassachusetts, United States
    691.2×
  168. 168Islamabadlow-cost sensorsIslamabad, Pakistan
    681.2×
  169. 168QuincyMassachusetts, United States
    681.2×
  170. 170UtoKumamoto, Japan
    681.2×
  171. 170AugustaMaine, United States
    681.2×
  172. 172ClevelandOhio, United States
    681.2×
  173. 172WindsorOntario, Canada
    681.2×
  174. 174GuelphOntario, Canada
    681.2×
  175. 174SaikaiNagasaki, Japan
    681.2×
  176. 176PyeongtaekGyeonggi-do, South Korea
    671.2×
  177. 176MiharaHiroshima, Japan
    671.2×
  178. 176CalamaAntofagasta, Chile
    671.2×
  179. 179ŌitaOita, Japan
    671.2×
  180. 179GwangmyeongGyeonggi-do, South Korea
    671.2×
  181. 179Little RockArkansas, United States
    671.2×
  182. 179AlbanyNew York, United States
    671.2×
  183. 179YoungstownOhio, United States
    671.2×
  184. 179KitchenerOntario, Canada
    671.2×
  185. 185KimjeJeollabuk-do, South Korea
    671.2×
  186. 185HonmachiKumamoto, Japan
    671.2×
  187. 185ŌtsukiYamanashi, Japan
    671.2×
  188. 185MinamataKumamoto, Japan
    671.2×
  189. 189SeonghwanChungcheongnam-do, South Korea
    671.2×
  190. 189YamagaKumamoto, Japan
    671.2×
  191. 189DetroitMichigan, United States
    671.2×
  192. 192SakuNagano, Japan
    661.2×
  193. 192East HamptonVirginia, United States
    661.2×
  194. 192SpringfieldMassachusetts, United States
    661.2×
  195. 195Khon KaenKhon Kaen, Thailand
    661.2×
  196. 196DerryNew Hampshire, United States
    661.1×
  197. 197ObrenovacCentral Serbia, Serbia
    661.1×
  198. 197BangorMaine, United States
    661.1×
  199. 197MimaTokushima, Japan
    661.1×
  200. 200NakatsuOita, Japan
    661.1×

Top 200 of 1,786 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 15, 2024, smogrank.com/history/2024-08-15 (accessed 3 Oct 2026).

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