SmogRank / History / July 4, 2024

Most polluted cities on July 4, 2024

2,277 cities ranked by their average PM2.5 over the day; the worst was Osorno, Chile, at 121.5 µg/m³. Each city's own local calendar day.

Bad-air episodes during July 4, 2024. All episodes.

← Osorno 121.5 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for July 4, 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
    1978.1×
  2. 2NacimientoBiobio, Chile
    1806.5×
  3. 3VillarricaAraucania, Chile
    1806.4×
  4. 4Puerto VarasLos Lagos Region, Chile
    1756.0×
  5. 5ShenyangLiaoning, China
    1715.6×
  6. 6ValdiviaLos Ríos Region, Chile
    1705.5×
  7. 7CairoCairo, Egypt
    1614.7×
  8. 8Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1594.4×
  9. 8Santa Anita - Los FicusLima region, Peru
    1594.4×
  10. 10La UniónLos Ríos Region, Chile
    1584.3×
  11. 11Puerto MonttLos Lagos Region, Chile
    1574.3×
  12. 12HualpénBiobio, Chile
    1574.2×
  13. 13Kampalalow-cost sensorsCentral Region, Uganda
    1533.9×
  14. 14Los ÁngelesBiobio, Chile
    1533.9×
  15. 15TemucoAraucania, Chile
    1463.6×
  16. 16HualquiBiobio, Chile
    1443.5×
  17. 16CoyhaiqueAysén, Chile
    1443.5×
  18. 18BeijingBeijing, China
    1413.5×
  19. 19LincolnNebraska, United States
    1293.1×
  20. 20ChiguayanteBiobio, Chile
    1293.1×
  21. 21BakuBaki, Azerbaijan
    1283.1×
  22. 22Puerto AysénAysén, Chile
    1263.0×
  23. 23Puente AltoSantiago Metropolitan, Chile
    1263.0×
  24. 24Asunciónlow-cost sensorsAsuncion, Paraguay
    1222.9×
  25. 25QuillotaValparaiso, Chile
    1172.8×
  26. 26JakartaJakarta, Indonesia
    1172.8×
  27. 27RancaguaO'Higgins Region, Chile
    1152.8×
  28. 28ComptonCalifornia, United States
    1142.7×
  29. 29SantiagoSantiago Metropolitan, Chile
    1132.7×
  30. 30TalaganteSantiago Metropolitan, Chile
    1102.6×
  31. 31LimaLima Province, Peru
    1082.6×
  32. 32CuranilahueBiobio, Chile
    1082.6×
  33. 33São PauloSão Paulo, Brazil
    1082.6×
  34. 33CoronelBiobio, Chile
    1082.6×
  35. 35Los AngelesCalifornia, United States
    1062.5×
  36. 36Yuba CityCalifornia, United States
    1052.5×
  37. 37BaghdadBaghdad, Iraq
    1032.4×
  38. 38QuinteroValparaiso, Chile
    1022.4×
  39. 39San Francisco De BorjaLima region, Peru
    1022.4×
  40. 40Dhakalow-cost sensorsDhaka Division, Bangladesh
    1022.4×
  41. 41AnaheimCalifornia, United States
    1012.4×
  42. 42CuricóMaule Region, Chile
    982.3×
  43. 43DushanbeDushanbe, Tajikistan
    982.3×
  44. 44CallaoCallao, Peru
    982.3×
  45. 45ToméBiobio, Chile
    972.3×
  46. 46Addis AbabaAddis Ababa, Ethiopia
    972.3×
  47. 46RengoO'Higgins Region, Chile
    972.3×
  48. 48Gimpo-siGyeonggi-do, South Korea
    962.2×
  49. 49ChillánÑuble, Chile
    952.2×
  50. 50YauriCuzco Department, Peru
    952.2×
  51. 51GlendoraCalifornia, United States
    942.1×
  52. 52San CarlosÑuble, Chile
    942.1×
  53. 53YeojuGyeonggi-do, South Korea
    932.1×
  54. 54San LeandroCalifornia, United States
    932.1×
  55. 55Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    932.1×
  56. 55KitamiHokkaido, Japan
    932.1×
  57. 57TalcahuanoBiobio, Chile
    932.1×
  58. 57Las VegasNevada, United States
    932.1×
  59. 57West Valley CityUtah, United States
    932.1×
  60. 60IncheonIncheon, South Korea
    922.1×
  61. 60HanamGyeonggi-do, South Korea
    922.1×
  62. 62BakersfieldCalifornia, United States
    922.1×
  63. 63SeoulSeoul, South Korea
    912.0×
  64. 64ConcepciónBiobio, Chile
    912.0×
  65. 65Franklin ParkIllinois, United States
    912.0×
  66. 66GwangmyeongGyeonggi-do, South Korea
    902.0×
  67. 67AyaseKanagawa, Japan
    902.0×
  68. 68Goyang-siGyeonggi-do, South Korea
    902.0×
  69. 69KaniGifu, Japan
    892.0×
  70. 70DearbornMichigan, United States
    881.9×
  71. 71VisaliaCalifornia, United States
    881.9×
  72. 72Arden-ArcadeCalifornia, United States
    871.9×
  73. 73BayonneNew Jersey, United States
    871.9×
  74. 73CorcoranCalifornia, United States
    871.9×
  75. 75WŏnjuGangwon-do, South Korea
    871.9×
  76. 75CheorwonGangwon-do, South Korea
    871.9×
  77. 77Jacobo HunterArequipa, Peru
    871.9×
  78. 78Guri-siGyeonggi-do, South Korea
    861.9×
  79. 78Ganghwa-gunIncheon, South Korea
    861.9×
  80. 80Lahorelow-cost sensorsPunjab, Pakistan
    861.9×
  81. 80KolkataWest Bengal, India
    861.9×
  82. 80Hwaseong-siGyeonggi-do, South Korea
    861.9×
  83. 80HwadoGyeonggi-do, South Korea
    861.9×
  84. 84SokchoGangwon-do, South Korea
    861.9×
  85. 85QuilpuéValparaiso, Chile
    861.8×
  86. 85CauquenesMaule Region, Chile
    861.8×
  87. 87AntananarivoAnalamanga, Madagascar
    851.8×
  88. 87Bucheon-siGyeonggi-do, South Korea
    851.8×
  89. 87GapyeongGyeonggi-do, South Korea
    851.8×
  90. 90Ulan BatorUlaanbaatar, Mongolia
    851.8×
  91. 90PortageIndiana, United States
    851.8×
  92. 92Villa Poeta José Gálvez BarrenecheaLima region, Peru
    851.8×
  93. 93FontanaCalifornia, United States
    841.8×
  94. 93MeridianIdaho, United States
    841.8×
  95. 95Uijeongbu-siGyeonggi-do, South Korea
    841.8×
  96. 96Yangp'yŏngGyeonggi-do, South Korea
    841.8×
  97. 96Icheon-siGyeonggi-do, South Korea
    841.8×
  98. 96RangioraCanterbury, New Zealand
    841.8×
  99. 99MinamirinkanKanagawa, Japan
    831.8×
  100. 99PubalGyeonggi-do, South Korea
    831.8×
  101. 101TakasakiGunma, Japan
    831.8×
  102. 102YangjuGyeonggi-do, South Korea
    831.7×
  103. 102HammondIndiana, United States
    831.7×
  104. 104Prince AlbertSaskatchewan, Canada
    821.7×
  105. 104AshburtonCanterbury, New Zealand
    821.7×
  106. 106SeonghwanChungcheongnam-do, South Korea
    821.7×
  107. 106GaryIndiana, United States
    821.7×
  108. 106EastpointeMichigan, United States
    821.7×
  109. 109YesanChungcheongnam-do, South Korea
    821.7×
  110. 109NamyangjuGyeonggi-do, South Korea
    821.7×
  111. 109East Saint LouisIllinois, United States
    821.7×
  112. 112Lincoln ParkMichigan, United States
    821.7×
  113. 113ConcónValparaiso, Chile
    811.7×
  114. 113AntofagastaAntofagasta, Chile
    811.7×
  115. 115JungpyongNorth Chungcheong, South Korea
    811.7×
  116. 116MaputoMaputo City, Mozambique
    811.7×
  117. 116PyeongtaekGyeonggi-do, South Korea
    811.7×
  118. 116Ansan-siGyeonggi-do, South Korea
    811.7×
  119. 116IgusaSaitama, Japan
    811.7×
  120. 116CoquimboCoquimbo Region, Chile
    811.7×
  121. 116RosevilleCalifornia, United States
    811.7×
  122. 122ClarksvilleTennessee, United States
    811.7×
  123. 123ShanghaiShanghai, China
    811.7×
  124. 123WabuGyeonggi-do, South Korea
    811.7×
  125. 123KushiroHokkaido, Japan
    811.7×
  126. 123AricaArica y Parinacota Region, Chile
    811.7×
  127. 123San Pedro de la PazBiobio, Chile
    811.7×
  128. 128Viña del MarValparaiso, Chile
    801.7×
  129. 129Anyang-siGyeonggi-do, South Korea
    801.7×
  130. 129Saint PaulMinnesota, United States
    801.7×
  131. 131Hongch’ŏnGangwon-do, South Korea
    801.6×
  132. 131AiharaKanagawa, Japan
    801.6×
  133. 133OsanGyeonggi-do, South Korea
    801.6×
  134. 134AtsugiKanagawa, Japan
    801.6×
  135. 134KamisuIbaraki, Japan
    801.6×
  136. 136Little RockArkansas, United States
    791.6×
  137. 137Bang NaBangkok, Thailand
    791.6×
  138. 137ChoshiChiba, Japan
    791.6×
  139. 137Michigan CityIndiana, United States
    791.6×
  140. 140Long BeachCalifornia, United States
    791.6×
  141. 141Chinch'ŏnNorth Chungcheong, South Korea
    791.6×
  142. 141ChigasakiKanagawa, Japan
    791.6×
  143. 141FresnoCalifornia, United States
    791.6×
  144. 144GwangjuGyeonggi-do, South Korea
    791.6×
  145. 145YokohamaKanagawa, Japan
    781.6×
  146. 146BrookfieldIllinois, United States
    781.6×
  147. 147SangjuGyeongsangbuk-do, South Korea
    781.6×
  148. 148TangjinChungcheongnam-do, South Korea
    781.6×
  149. 148BailénAndalusia, Spain
    781.6×
  150. 148OmahaNebraska, United States
    781.6×
  151. 148HendersonNevada, United States
    781.6×
  152. 148ChikuseiIbaraki, Japan
    781.6×
  153. 148SōsaChiba, Japan
    781.6×
  154. 154GyōdaSaitama, Japan
    771.6×
  155. 154TalcaMaule Region, Chile
    771.6×
  156. 154IrumaSaitama, Japan
    771.6×
  157. 154HigashikurumeTokyo, Japan
    771.6×
  158. 158NoboritoKanagawa, Japan
    771.5×
  159. 159AzaminoKanagawa, Japan
    771.5×
  160. 159KodairaTokyo, Japan
    771.5×
  161. 161EisenGyeongsangbuk-do, South Korea
    771.5×
  162. 161HayangGyeongsangbuk-do, South Korea
    771.5×
  163. 161GotembaShizuoka, Japan
    771.5×
  164. 161AgeoSaitama, Japan
    771.5×
  165. 165SuwonGyeonggi-do, South Korea
    771.5×
  166. 165AndongGyeongsangbuk-do, South Korea
    771.5×
  167. 165ŌmeTokyo, Japan
    771.5×
  168. 168MenumaSaitama, Japan
    761.5×
  169. 168ŌharaChiba, Japan
    761.5×
  170. 168Higashi-MatsuyamaSaitama, Japan
    761.5×
  171. 171MachidaTokyo, Japan
    761.5×
  172. 172MunsanGyeonggi-do, South Korea
    761.5×
  173. 172KawagoeSaitama, Japan
    761.5×
  174. 172MaryvilleTennessee, United States
    761.5×
  175. 175AnanTokushima, Japan
    761.5×
  176. 175Alto HospicioTarapacá, Chile
    761.5×
  177. 175Jurupa ValleyCalifornia, United States
    761.5×
  178. 178MorohongōSaitama, Japan
    751.5×
  179. 178AtamiShizuoka, Japan
    751.5×
  180. 178BartlettTennessee, United States
    751.5×
  181. 181TokyoTokyo, Japan
    751.5×
  182. 181HiratsukaKanagawa, Japan
    751.5×
  183. 181ChicagoIllinois, United States
    751.5×
  184. 181Idaho FallsIdaho, United States
    751.5×
  185. 181HigashimurayamaTokyo, Japan
    751.5×
  186. 181FuchūTokyo, Japan
    751.5×
  187. 187KōnosuSaitama, Japan
    751.5×
  188. 187Accralow-cost sensorsGreater Accra, Ghana
    751.5×
  189. 189TokorozawaSaitama, Japan
    751.5×
  190. 189West JordanUtah, United States
    751.5×
  191. 189YamatoKanagawa, Japan
    751.5×
  192. 192Seongnam-siGyeonggi-do, South Korea
    741.4×
  193. 193OdawaraKanagawa, Japan
    741.4×
  194. 193HachiōjiTokyo, Japan
    741.4×
  195. 193AkishimaTokyo, Japan
    741.4×
  196. 193NiizaSaitama, Japan
    741.4×
  197. 197ChungjuNorth Chungcheong, South Korea
    741.4×
  198. 197ŌtsukiYamanashi, Japan
    741.4×
  199. 197KumagayaSaitama, Japan
    741.4×
  200. 197MinawaKanagawa, Japan
    741.4×

Top 200 of 2,277 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 4, 2024, smogrank.com/history/2024-07-04 (accessed 3 Oct 2026).

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