SmogRank / History / August 18, 2024

Most polluted cities on August 18, 2024

1,712 cities ranked by their average PM2.5 over the day; the worst was Fort McMurray, Canada, at 119.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during August 18, 2024. All episodes.

← Fort McMurray 119.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for August 18, 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. 1Fort McMurrayAlberta, Canada
    1967.9×
  2. 2DushanbeDushanbe, Tajikistan
    1927.6×
  3. 3OsornoLos Lagos Region, Chile
    1887.2×
  4. 4ValdiviaLos Ríos Region, Chile
    1816.6×
  5. 5CoyhaiqueAysén, Chile
    1735.8×
  6. 6Puerto MonttLos Lagos Region, Chile
    1725.7×
  7. 7Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1715.6×
  8. 7NacimientoBiobio, Chile
    1715.6×
  9. 9Santa Anita - Los FicusLima region, Peru
    1685.4×
  10. 10TemucoAraucania, Chile
    1685.3×
  11. 11Asunciónlow-cost sensorsAsuncion, Paraguay
    1665.1×
  12. 12Puerto VarasLos Lagos Region, Chile
    1634.8×
  13. 13La UniónLos Ríos Region, Chile
    1594.5×
  14. 14Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1574.2×
  15. 14São PauloSão Paulo, Brazil
    1574.2×
  16. 16VillarricaAraucania, Chile
    1554.1×
  17. 17HualquiBiobio, Chile
    1544.0×
  18. 18HualpénBiobio, Chile
    1483.6×
  19. 19Puerto AysénAysén, Chile
    1443.5×
  20. 20CuricóMaule Region, Chile
    1403.4×
  21. 21CoronelBiobio, Chile
    1393.4×
  22. 22Puente AltoSantiago Metropolitan, Chile
    1333.2×
  23. 23JakartaJakarta, Indonesia
    1303.2×
  24. 24RancaguaO'Higgins Region, Chile
    1263.1×
  25. 25ManamaManama, Bahrain
    1233.0×
  26. 26BaghdadBaghdad, Iraq
    1222.9×
  27. 27RengoO'Higgins Region, Chile
    1202.9×
  28. 28ConcepciónBiobio, Chile
    1182.8×
  29. 29SantiagoSantiago Metropolitan, Chile
    1152.7×
  30. 30EdmontonAlberta, Canada
    1102.6×
  31. 31QuillotaValparaiso, Chile
    1092.6×
  32. 32TalcahuanoBiobio, Chile
    1062.5×
  33. 33ChiguayanteBiobio, Chile
    1042.4×
  34. 34Iloilolow-cost sensorsWestern Visayas, Philippines
    992.3×
  35. 35Islamabadlow-cost sensorsIslamabad, Pakistan
    982.3×
  36. 36QuinteroValparaiso, Chile
    972.3×
  37. 37TalaganteSantiago Metropolitan, Chile
    972.2×
  38. 38SaskatoonSaskatchewan, Canada
    942.2×
  39. 39ReginaSaskatchewan, Canada
    932.1×
  40. 40TalcaMaule Region, Chile
    912.0×
  41. 41CuranilahueBiobio, Chile
    902.0×
  42. 41Saint CloudMinnesota, United States
    902.0×
  43. 43SuperiorWisconsin, United States
    902.0×
  44. 44LimaLima Province, Peru
    892.0×
  45. 45Kampalalow-cost sensorsCentral Region, Uganda
    892.0×
  46. 46CallaoCallao, Peru
    881.9×
  47. 47BurnsvilleMinnesota, United States
    871.9×
  48. 47San Francisco De BorjaLima region, Peru
    871.9×
  49. 49DuluthMinnesota, United States
    861.9×
  50. 49Saint PaulMinnesota, United States
    861.9×
  51. 51Nepeanlow-cost sensorsOntario, Canada
    861.9×
  52. 52ToméBiobio, Chile
    861.8×
  53. 53ShenyangLiaoning, China
    851.8×
  54. 53MinneapolisMinnesota, United States
    851.8×
  55. 55Sherwood ParkAlberta, Canada
    851.8×
  56. 56BeijingBeijing, China
    841.8×
  57. 56Banja LukaSrpska, Bosnia and Herzegovina
    841.8×
  58. 58BlaineMinnesota, United States
    831.7×
  59. 58Saint MichaelMinnesota, United States
    831.7×
  60. 60ShakopeeMinnesota, United States
    821.7×
  61. 61AntofagastaAntofagasta, Chile
    821.7×
  62. 62ChillánÑuble, Chile
    821.7×
  63. 63SaguenayQuebec, Canada
    821.7×
  64. 64QuilpuéValparaiso, Chile
    801.7×
  65. 65SarajevoFederation of B&H, Bosnia and Herzegovina
    801.7×
  66. 66Abujalow-cost sensorsFCT, Nigeria
    801.6×
  67. 67TangjinChungcheongnam-do, South Korea
    791.6×
  68. 68Los ÁngelesBiobio, Chile
    791.6×
  69. 69CauquenesMaule Region, Chile
    791.6×
  70. 70Apple ValleyMinnesota, United States
    781.6×
  71. 70QuébecQuebec, Canada
    781.6×
  72. 72Thunder BayOntario, Canada
    781.6×
  73. 73San Pedro de la PazBiobio, Chile
    771.6×
  74. 74Ganghwa-gunIncheon, South Korea
    771.5×
  75. 74ConcónValparaiso, Chile
    771.5×
  76. 76BakuBaki, Azerbaijan
    771.5×
  77. 77RochesterMinnesota, United States
    771.5×
  78. 77West FargoNorth Dakota, United States
    771.5×
  79. 79AricaArica y Parinacota Region, Chile
    761.5×
  80. 80L'Ancienne-LoretteQuebec, Canada
    761.5×
  81. 81DelhiDelhi, India
    751.5×
  82. 81Red DeerAlberta, Canada
    751.5×
  83. 83AshgabatAshgabat, Turkmenistan
    751.5×
  84. 83MankatoMinnesota, United States
    751.5×
  85. 85La SerenaCoquimbo Region, Chile
    741.4×
  86. 86Eau ClaireWisconsin, United States
    741.4×
  87. 86AyaseKanagawa, Japan
    741.4×
  88. 88Gimpo-siGyeonggi-do, South Korea
    731.4×
  89. 89Dhakalow-cost sensorsDhaka Division, Bangladesh
    731.4×
  90. 90TamanaKumamoto, Japan
    731.4×
  91. 90CoquimboCoquimbo Region, Chile
    731.4×
  92. 90Jacobo HunterArequipa, Peru
    731.4×
  93. 93Addis AbabaAddis Ababa, Ethiopia
    731.4×
  94. 94St. AlbertAlberta, Canada
    731.4×
  95. 95IncheonIncheon, South Korea
    721.4×
  96. 96ŌzuKumamoto, Japan
    721.4×
  97. 96NichinanMiyazaki, Japan
    721.4×
  98. 98MaputoMaputo City, Mozambique
    721.4×
  99. 98MinamataKumamoto, Japan
    721.4×
  100. 100MinamikyushuKagoshima, Japan
    721.3×
  101. 101CopiapóAtacama, Chile
    711.3×
  102. 101Villa Poeta José Gálvez BarrenecheaLima region, Peru
    711.3×
  103. 103SeosanChungcheongnam-do, South Korea
    711.3×
  104. 103LowellMassachusetts, United States
    711.3×
  105. 103AraoKumamoto, Japan
    711.3×
  106. 106TocopillaAntofagasta, Chile
    711.3×
  107. 107KolkataWest Bengal, India
    701.3×
  108. 107DerryNew Hampshire, United States
    701.3×
  109. 109AsanChungcheongnam-do, South Korea
    701.3×
  110. 110Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    701.3×
  111. 110SendaiKagoshima, Japan
    701.3×
  112. 112Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    691.3×
  113. 112KagoshimaKagoshima, Japan
    691.3×
  114. 114Taesal-liChungcheongnam-do, South Korea
    691.3×
  115. 115HaverhillMassachusetts, United States
    691.2×
  116. 116ChennaiTamil Nadu, India
    691.2×
  117. 116KanoyaKagoshima, Japan
    691.2×
  118. 118BostonMassachusetts, United States
    681.2×
  119. 119SaikiOita, Japan
    681.2×
  120. 120CheonanChungcheongnam-do, South Korea
    681.2×
  121. 121KobayashiMiyazaki, Japan
    681.2×
  122. 121CalamaAntofagasta, Chile
    681.2×
  123. 121BrocktonMassachusetts, United States
    681.2×
  124. 121KirishimaKagoshima, Japan
    681.2×
  125. 125ŌtsukiYamanashi, Japan
    671.2×
  126. 126YesanChungcheongnam-do, South Korea
    671.2×
  127. 126SeonghwanChungcheongnam-do, South Korea
    671.2×
  128. 126GwangmyeongGyeonggi-do, South Korea
    671.2×
  129. 126Accralow-cost sensorsGreater Accra, Ghana
    671.2×
  130. 130RadomskoŁódź Voivodeship, Poland
    671.2×
  131. 130Sorel-TracyQuebec, Canada
    671.2×
  132. 132Bang NaBangkok, Thailand
    671.2×
  133. 132TakanabeMiyazaki, Japan
    671.2×
  134. 132Ōyanomachi-noboritateKumamoto, Japan
    671.2×
  135. 135AugustaMaine, United States
    661.2×
  136. 135ShawiniganQuebec, Canada
    661.2×
  137. 137CalgaryAlberta, Canada
    661.2×
  138. 138GuangzhouGuangdong, China
    661.1×
  139. 138Atlantic CityNew Jersey, United States
    661.1×
  140. 138MuscatineIowa, United States
    661.1×
  141. 141PleasantvilleNew Jersey, United States
    661.1×
  142. 141HartfordConnecticut, United States
    661.1×
  143. 141DavenportIowa, United States
    661.1×
  144. 141LynnMassachusetts, United States
    661.1×
  145. 145SpringfieldMassachusetts, United States
    661.1×
  146. 145PortlandMaine, United States
    661.1×
  147. 145PortsmouthNew Hampshire, United States
    661.1×
  148. 145Trois-RivièresQuebec, Canada
    661.1×
  149. 149Bucheon-siGyeonggi-do, South Korea
    661.1×
  150. 149SherbrookeQuebec, Canada
    661.1×
  151. 151Ulu BedokSingapore
    651.1×
  152. 151KotōKumamoto, Japan
    651.1×
  153. 153HonmachiKumamoto, Japan
    651.1×
  154. 153MiyazakiMiyazaki, Japan
    651.1×
  155. 153MiyakonojōMiyazaki, Japan
    651.1×
  156. 153IsahayaNagasaki, Japan
    651.1×
  157. 153ChimboteAncash, Peru
    651.1×
  158. 153WorcesterMassachusetts, United States
    651.1×
  159. 153AlbanyNew York, United States
    651.1×
  160. 160KikuchiKumamoto, Japan
    651.1×
  161. 161Alto HospicioTarapacá, Chile
    651.1×
  162. 161Grande PrairieAlberta, Canada
    651.1×
  163. 163QuincyMassachusetts, United States
    651.1×
  164. 164MinamirinkanKanagawa, Japan
    641.1×
  165. 164AiharaKanagawa, Japan
    641.1×
  166. 164ToruńKujawsko-Pomorskie, Poland
    641.1×
  167. 164YauriCuzco Department, Peru
    641.1×
  168. 164Lake MaryFlorida, United States
    641.1×
  169. 169PhiladelphiaPennsylvania, United States
    641.1×
  170. 169North CharlestonSouth Carolina, United States
    641.1×
  171. 169Cedar RapidsIowa, United States
    641.1×
  172. 169Lat KrabangBangkok, Thailand
    641.1×
  173. 173ŌmeTokyo, Japan
    641.1×
  174. 173Iowa CityIowa, United States
    641.1×
  175. 175Uekimachi-mōnoKumamoto, Japan
    641.1×
  176. 175ŌmutaFukuoka, Japan
    641.1×
  177. 175KushikinoKagoshima, Japan
    641.1×
  178. 175AlgiersAlgiers, Algeria
    641.1×
  179. 175Toms RiverNew Jersey, United States
    641.1×
  180. 175AsoKumamoto, Japan
    641.1×
  181. 181ShintomiMiyazaki, Japan
    641.1×
  182. 182Goyang-siGyeonggi-do, South Korea
    631.1×
  183. 182Hwaseong-siGyeonggi-do, South Korea
    631.1×
  184. 182TakasakiGunma, Japan
    631.1×
  185. 182KaliszGreater Poland, Poland
    631.1×
  186. 182Prince GeorgeBritish Columbia, Canada
    631.1×
  187. 187MolineIllinois, United States
    631.0×
  188. 187KeeneNew Hampshire, United States
    631.0×
  189. 187New York CityNew York, United States
    631.0×
  190. 187BridgeportConnecticut, United States
    631.0×
  191. 187FontanaCalifornia, United States
    631.0×
  192. 192OtwockMazovia, Poland
    631.0×
  193. 192YamagaKumamoto, Japan
    631.0×
  194. 192DrummondvilleQuebec, Canada
    631.0×
  195. 195ObitaNagasaki, Japan
    631.0×
  196. 195KumamotoKumamoto, Japan
    631.0×
  197. 195Fort LeeNew Jersey, United States
    631.0×
  198. 198Skarżysko-KamiennaŚwiętokrzyskie, Poland
    631.0×
  199. 198IzumiKagoshima, Japan
    631.0×
  200. 198ChigasakiKanagawa, Japan
    631.0×

Top 200 of 1,712 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 18, 2024, smogrank.com/history/2024-08-18 (accessed 3 Oct 2026).

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