SmogRank / History / July 28, 2024

Most polluted cities on July 28, 2024

2,195 cities ranked by their average PM2.5 over the day; the worst was Osorno, Chile, at 160.5 µg/m³. Each city's own local calendar day.

Bad-air episodes during July 28, 2024. All episodes.

← Osorno 160.5 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for July 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. 1OsornoLos Lagos Region, Chile
    23610.7×
  2. 2Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1988.2×
  3. 3TemucoAraucania, Chile
    1967.9×
  4. 4Puerto MonttLos Lagos Region, Chile
    1927.6×
  5. 5La UniónLos Ríos Region, Chile
    1786.3×
  6. 6Puerto VarasLos Lagos Region, Chile
    1665.1×
  7. 7HualpénBiobio, Chile
    1655.1×
  8. 8Santa Anita - Los FicusLima region, Peru
    1634.8×
  9. 9VillarricaAraucania, Chile
    1594.5×
  10. 10Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1584.4×
  11. 11SantiagoSantiago Metropolitan, Chile
    1574.2×
  12. 12Puente AltoSantiago Metropolitan, Chile
    1554.1×
  13. 13BendOregon, United States
    1554.1×
  14. 14AshgabatAshgabat, Turkmenistan
    1544.0×
  15. 15CuranilahueBiobio, Chile
    1533.9×
  16. 16TalaganteSantiago Metropolitan, Chile
    1523.8×
  17. 17Lahorelow-cost sensorsPunjab, Pakistan
    1493.7×
  18. 18RancaguaO'Higgins Region, Chile
    1433.5×
  19. 19RengoO'Higgins Region, Chile
    1413.5×
  20. 20LewistonIdaho, United States
    1373.4×
  21. 21Kampalalow-cost sensorsCentral Region, Uganda
    1343.3×
  22. 22MeridianIdaho, United States
    1313.2×
  23. 23QuillotaValparaiso, Chile
    1303.1×
  24. 24CoronelBiobio, Chile
    1253.0×
  25. 25RedmondOregon, United States
    1253.0×
  26. 26CairoCairo, Egypt
    1233.0×
  27. 27Prince AlbertSaskatchewan, Canada
    1222.9×
  28. 28HualquiBiobio, Chile
    1212.9×
  29. 29NampaIdaho, United States
    1182.8×
  30. 30QuinteroValparaiso, Chile
    1162.8×
  31. 31BoiseIdaho, United States
    1152.8×
  32. 32QuilpuéValparaiso, Chile
    1112.6×
  33. 33CoyhaiqueAysén, Chile
    1092.6×
  34. 34DushanbeDushanbe, Tajikistan
    1072.5×
  35. 35Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1062.5×
  36. 36BaghdadBaghdad, Iraq
    1052.5×
  37. 37MaputoMaputo City, Mozambique
    1042.5×
  38. 38Twin FallsIdaho, United States
    1032.4×
  39. 39AlgiersAlgiers, Algeria
    1032.4×
  40. 40ChiguayanteBiobio, Chile
    1002.4×
  41. 41LimaLima Province, Peru
    982.3×
  42. 42Kathmandulow-cost sensorsBagmati Province, Nepal
    972.3×
  43. 43ButteMontana, United States
    972.2×
  44. 44TalcahuanoBiobio, Chile
    962.2×
  45. 45Karachilow-cost sensorsSindh, Pakistan
    962.2×
  46. 46RangioraCanterbury, New Zealand
    962.2×
  47. 47La SerenaCoquimbo Region, Chile
    952.2×
  48. 48NacimientoBiobio, Chile
    932.1×
  49. 49Viña del MarValparaiso, Chile
    932.1×
  50. 50Lexingtonlow-cost sensorsMassachusetts, United States
    922.1×
  51. 51San Francisco De BorjaLima region, Peru
    922.1×
  52. 52HelenaMontana, United States
    922.1×
  53. 53CoquimboCoquimbo Region, Chile
    902.0×
  54. 54ReddingCalifornia, United States
    892.0×
  55. 55AntananarivoAnalamanga, Madagascar
    881.9×
  56. 56HanoiHanoi, Vietnam
    881.9×
  57. 57ConcónValparaiso, Chile
    871.9×
  58. 58CallaoCallao, Peru
    851.8×
  59. 59Los ÁngelesBiobio, Chile
    841.8×
  60. 60Asunciónlow-cost sensorsAsuncion, Paraguay
    841.8×
  61. 61BeijingBeijing, China
    821.7×
  62. 62Puerto AysénAysén, Chile
    821.7×
  63. 63Fort McMurrayAlberta, Canada
    811.7×
  64. 64ConcepciónBiobio, Chile
    811.7×
  65. 64AntofagastaAntofagasta, Chile
    811.7×
  66. 66AltamontOregon, United States
    801.6×
  67. 66AirdrieAlberta, Canada
    801.6×
  68. 68CopiapóAtacama, Chile
    791.6×
  69. 69YakimaWashington, United States
    791.6×
  70. 70ParadiseCalifornia, United States
    791.6×
  71. 71CranbrookBritish Columbia, Canada
    791.6×
  72. 71SaskatoonSaskatchewan, Canada
    791.6×
  73. 73DelhiDelhi, India
    781.6×
  74. 74CauquenesMaule Region, Chile
    771.6×
  75. 75BrocktonMassachusetts, United States
    771.5×
  76. 75BozemanMontana, United States
    771.5×
  77. 77BostonMassachusetts, United States
    761.5×
  78. 78TocopillaAntofagasta, Chile
    761.5×
  79. 78AlbanyNew York, United States
    761.5×
  80. 78RutlandVermont, United States
    761.5×
  81. 78San Pedro de la PazBiobio, Chile
    761.5×
  82. 82Rapid CitySouth Dakota, United States
    751.5×
  83. 82Nepeanlow-cost sensorsOntario, Canada
    751.5×
  84. 84TalcaMaule Region, Chile
    751.5×
  85. 84BillingsMontana, United States
    751.5×
  86. 86ChristchurchCanterbury, New Zealand
    751.5×
  87. 87DanburyConnecticut, United States
    741.4×
  88. 87SheridanWyoming, United States
    741.4×
  89. 87ReginaSaskatchewan, Canada
    741.4×
  90. 90Jacobo HunterArequipa, Peru
    741.4×
  91. 91ChillánÑuble, Chile
    741.4×
  92. 91QuincyMassachusetts, United States
    741.4×
  93. 91Great FallsMontana, United States
    741.4×
  94. 94IlindenIlinden, North Macedonia
    731.4×
  95. 94New HavenConnecticut, United States
    731.4×
  96. 96YauriCuzco Department, Peru
    731.4×
  97. 96HartfordConnecticut, United States
    731.4×
  98. 98PortsmouthNew Hampshire, United States
    731.4×
  99. 99Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    731.4×
  100. 99SunnysideWashington, United States
    731.4×
  101. 101AyaseKanagawa, Japan
    721.4×
  102. 102LynnMassachusetts, United States
    721.4×
  103. 102HolbrookNew York, United States
    721.4×
  104. 104San ClementeIca, Peru
    721.4×
  105. 105AugustaMaine, United States
    711.3×
  106. 105PortlandMaine, United States
    711.3×
  107. 107PawtucketRhode Island, United States
    711.3×
  108. 108KimitsuChiba, Japan
    711.3×
  109. 108PittsfieldMassachusetts, United States
    711.3×
  110. 110MitoIbaraki, Japan
    711.3×
  111. 111Dhakalow-cost sensorsDhaka Division, Bangladesh
    711.3×
  112. 111WaterburyConnecticut, United States
    711.3×
  113. 113LethbridgeAlberta, Canada
    711.3×
  114. 114Bang NaBangkok, Thailand
    701.3×
  115. 115CalamaAntofagasta, Chile
    691.3×
  116. 115CalgaryAlberta, Canada
    691.3×
  117. 117Islamabadlow-cost sensorsIslamabad, Pakistan
    691.3×
  118. 117TimaruCanterbury, New Zealand
    691.3×
  119. 117SpringfieldMassachusetts, United States
    691.3×
  120. 120MumbaiMaharashtra, India
    691.3×
  121. 120AricaArica y Parinacota Region, Chile
    691.3×
  122. 120Medicine HatAlberta, Canada
    691.3×
  123. 123New LondonConnecticut, United States
    691.2×
  124. 124KurihamaKanagawa, Japan
    691.2×
  125. 124LowellMassachusetts, United States
    691.2×
  126. 124RochesterMinnesota, United States
    691.2×
  127. 127ChigasakiKanagawa, Japan
    691.2×
  128. 127LindenNew Jersey, United States
    691.2×
  129. 127BridgeportConnecticut, United States
    691.2×
  130. 130Jurong WestSingapore
    681.2×
  131. 130WorcesterMassachusetts, United States
    681.2×
  132. 132ChibaChiba, Japan
    681.2×
  133. 133ScrantonPennsylvania, United States
    681.2×
  134. 134KamakuraKanagawa, Japan
    681.2×
  135. 134Fall RiverMassachusetts, United States
    681.2×
  136. 136AtamiShizuoka, Japan
    681.2×
  137. 136MiuraKanagawa, Japan
    681.2×
  138. 136RexburgIdaho, United States
    681.2×
  139. 139ProvidenceRhode Island, United States
    671.2×
  140. 139MissoulaMontana, United States
    671.2×
  141. 141YokosukaKanagawa, Japan
    671.2×
  142. 141TateyamaChiba, Japan
    671.2×
  143. 141Villa Poeta José Gálvez BarrenecheaLima region, Peru
    671.2×
  144. 141ColumbusOhio, United States
    671.2×
  145. 141DerryNew Hampshire, United States
    671.2×
  146. 141Idaho FallsIdaho, United States
    671.2×
  147. 141SpokaneWashington, United States
    671.2×
  148. 148Toms RiverNew Jersey, United States
    671.2×
  149. 148MinamibōsōChiba, Japan
    671.2×
  150. 150FukuroiShizuoka, Japan
    671.2×
  151. 150IchiharaChiba, Japan
    671.2×
  152. 150KomárnoNitra Region, Slovakia
    671.2×
  153. 150RoveretoTrentino-Alto Adige, Italy
    671.2×
  154. 154New York CityNew York, United States
    671.2×
  155. 155MoscowIdaho, United States
    661.2×
  156. 155GilletteWyoming, United States
    661.2×
  157. 157EdmontonAlberta, Canada
    661.2×
  158. 158Alto HospicioTarapacá, Chile
    661.1×
  159. 158BurnsvilleMinnesota, United States
    661.1×
  160. 160UrayasuChiba, Japan
    661.1×
  161. 160ShimodaShizuoka, Japan
    661.1×
  162. 160ŌitaOita, Japan
    661.1×
  163. 160KisarazuChiba, Japan
    661.1×
  164. 160HiratsukaKanagawa, Japan
    661.1×
  165. 160GotembaShizuoka, Japan
    661.1×
  166. 160Falconara MarittimaThe Marches, Italy
    661.1×
  167. 167ŌamiChiba, Japan
    661.1×
  168. 167PatersonNew Jersey, United States
    661.1×
  169. 167PocatelloIdaho, United States
    661.1×
  170. 167Spokane ValleyWashington, United States
    661.1×
  171. 171SherbrookeQuebec, Canada
    661.1×
  172. 172FujisawaKanagawa, Japan
    651.1×
  173. 172CantonOhio, United States
    651.1×
  174. 174PhiladelphiaPennsylvania, United States
    651.1×
  175. 174RedfordMichigan, United States
    651.1×
  176. 174BensalemPennsylvania, United States
    651.1×
  177. 177FujiedaShizuoka, Japan
    651.1×
  178. 177TrentoTrentino-Alto Adige, Italy
    651.1×
  179. 177Saint AndrewsSouth Carolina, United States
    651.1×
  180. 180YokohamaKanagawa, Japan
    651.1×
  181. 180MobaraChiba, Japan
    651.1×
  182. 180OremUtah, United States
    651.1×
  183. 183BolzanoTrentino-Alto Adige, Italy
    651.1×
  184. 183AllentownPennsylvania, United States
    651.1×
  185. 183SaguenayQuebec, Canada
    651.1×
  186. 186North ChicopeeMassachusetts, United States
    641.1×
  187. 187ŌtsukiYamanashi, Japan
    641.1×
  188. 187YufuOita, Japan
    641.1×
  189. 189BangorMaine, United States
    641.1×
  190. 189NewburghNew York, United States
    641.1×
  191. 191HighlandUtah, United States
    641.1×
  192. 191MiramichiNew Brunswick, Canada
    641.1×
  193. 191Swift CurrentSaskatchewan, Canada
    641.1×
  194. 191L'Ancienne-LoretteQuebec, Canada
    641.1×
  195. 195DuluthMinnesota, United States
    641.1×
  196. 195Saint PaulMinnesota, United States
    641.1×
  197. 195HamiltonOntario, Canada
    641.1×
  198. 198FrederictonNew Brunswick, Canada
    631.1×
  199. 199OdawaraKanagawa, Japan
    631.0×
  200. 199ShakopeeMinnesota, United States
    631.0×

Top 200 of 2,195 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, July 28, 2024, smogrank.com/history/2024-07-28 (accessed 3 Oct 2026).

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