SmogRank / History / July 29, 2023

Most polluted cities on July 29, 2023

1,821 cities ranked by their average PM2.5 over the day; the worst was Nacimiento, Chile, at 136.5 µg/m³. Each city's own local calendar day.

← Nacimiento 136.5 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for July 29, 2023, 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. 1NacimientoBiobio, Chile
    2129.1×
  2. 2San CarlosÑuble, Chile
    2119.1×
  3. 3LinaresMaule Region, Chile
    1998.3×
  4. 4ChillánÑuble, Chile
    1957.9×
  5. 5CuricóMaule Region, Chile
    1917.5×
  6. 6Los ÁngelesBiobio, Chile
    1745.9×
  7. 7RancaguaO'Higgins Region, Chile
    1634.8×
  8. 8RengoO'Higgins Region, Chile
    1624.7×
  9. 9CoyhaiqueAysén, Chile
    1584.4×
  10. 10CoronelBiobio, Chile
    1574.3×
  11. 11TalcaMaule Region, Chile
    1574.2×
  12. 12SantiagoSantiago Metropolitan, Chile
    1564.2×
  13. 13TemucoAraucania, Chile
    1554.1×
  14. 14TalaganteSantiago Metropolitan, Chile
    1554.0×
  15. 15CuranilahueBiobio, Chile
    1544.0×
  16. 16TalcahuanoBiobio, Chile
    1483.6×
  17. 17HualquiBiobio, Chile
    1473.6×
  18. 18Arroyo GrandeCalifornia, United States
    1463.6×
  19. 19JakartaJakarta, Indonesia
    1453.6×
  20. 20Puente AltoSantiago Metropolitan, Chile
    1453.6×
  21. 21QuillotaValparaiso, Chile
    1433.5×
  22. 22Puerto AysénAysén, Chile
    1353.3×
  23. 23Santa Anita - Los FicusLima region, Peru
    1303.1×
  24. 24ToméBiobio, Chile
    1233.0×
  25. 24CauquenesMaule Region, Chile
    1233.0×
  26. 26ChiguayanteBiobio, Chile
    1182.8×
  27. 27ConcepciónBiobio, Chile
    1162.8×
  28. 28Viña del MarValparaiso, Chile
    1142.7×
  29. 29BendOregon, United States
    1112.6×
  30. 30DushanbeDushanbe, Tajikistan
    1082.5×
  31. 31LotaBiobio, Chile
    1052.5×
  32. 32CoquimboCoquimbo Region, Chile
    972.3×
  33. 33HanoiHanoi, Vietnam
    972.3×
  34. 34Dhakalow-cost sensorsDhaka Division, Bangladesh
    962.2×
  35. 35ConcónValparaiso, Chile
    962.2×
  36. 36TlaquepaqueJalisco, Mexico
    962.2×
  37. 37QuinteroValparaiso, Chile
    952.2×
  38. 38RedmondOregon, United States
    942.1×
  39. 39PristinaPristina, Kosovo
    902.0×
  40. 40XonacatlánMéxico, Mexico
    881.9×
  41. 41San Francisco TlalcilalcalpanMéxico, Mexico
    871.9×
  42. 42Puerto VarasLos Lagos Region, Chile
    851.8×
  43. 43Ciudad JuárezChihuahua, Mexico
    841.8×
  44. 44Şabāḩ as SālimMubārak al Kabīr, Kuwait
    841.8×
  45. 45YamanashiYamanashi, Japan
    831.8×
  46. 46MikuniFukui, Japan
    821.7×
  47. 46CopiapóAtacama, Chile
    821.7×
  48. 48BamakoBamako, Mali
    821.7×
  49. 48San Pedro de la PazBiobio, Chile
    821.7×
  50. 50GuangzhouGuangdong, China
    811.7×
  51. 51ChennaiTamil Nadu, India
    801.7×
  52. 52MexicaliBaja California, Mexico
    801.6×
  53. 53Little RockArkansas, United States
    801.6×
  54. 54SalorTashkent Region, Uzbekistan
    791.6×
  55. 54La UniónLos Ríos Region, Chile
    791.6×
  56. 56SpringdaleArkansas, United States
    781.6×
  57. 57Ang Mo Kio New TownSingapore
    781.6×
  58. 58ValdiviaLos Ríos Region, Chile
    781.6×
  59. 59SarajevoFederation of B&H, Bosnia and Herzegovina
    771.5×
  60. 59Puerto MonttLos Lagos Region, Chile
    771.5×
  61. 59AricaArica y Parinacota Region, Chile
    771.5×
  62. 62UozuToyama, Japan
    771.5×
  63. 63West MemphisArkansas, United States
    771.5×
  64. 63Boulder CityNevada, United States
    771.5×
  65. 65TolucaMéxico, Mexico
    771.5×
  66. 66CelayaGuanajuato, Mexico
    761.5×
  67. 67AntananarivoAnalamanga, Madagascar
    761.5×
  68. 68Los AngelesCalifornia, United States
    761.5×
  69. 69Lahorelow-cost sensorsPunjab, Pakistan
    751.5×
  70. 69Maebaru-chūōFukuoka, Japan
    751.5×
  71. 69Ciudad NezahualcoyotlMéxico, Mexico
    751.5×
  72. 72HoustonTexas, United States
    751.5×
  73. 73HimimachiToyama, Japan
    751.5×
  74. 74TakaokaToyama, Japan
    741.4×
  75. 74AntofagastaAntofagasta, Chile
    741.4×
  76. 76Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    741.4×
  77. 76SakataYamagata, Japan
    741.4×
  78. 76NagaiYamagata, Japan
    741.4×
  79. 79Missouri CityTexas, United States
    741.4×
  80. 80KureHiroshima, Japan
    741.4×
  81. 80LimaLima Province, Peru
    741.4×
  82. 82BaytownTexas, United States
    731.4×
  83. 83Wan ChaiWan Chai, Hong Kong
    731.4×
  84. 83HonmachiKumamoto, Japan
    731.4×
  85. 83MatsuuraNagasaki, Japan
    731.4×
  86. 86Alto HospicioTarapacá, Chile
    721.4×
  87. 86AustinTexas, United States
    721.4×
  88. 86DallasTexas, United States
    721.4×
  89. 86GalvestonTexas, United States
    721.4×
  90. 86Mission BendTexas, United States
    721.4×
  91. 86HigashihiroshimaHiroshima, Japan
    721.4×
  92. 92Ciudad ApodacaNuevo León, Mexico
    721.4×
  93. 92TexarkanaTexas, United States
    721.4×
  94. 92TsushimaNagasaki, Japan
    721.4×
  95. 95LublinLublin, Poland
    721.4×
  96. 95NaganoNagano, Japan
    721.4×
  97. 95Ulu BedokSingapore
    721.4×
  98. 95Queenstown Estatelow-cost sensorsSingapore
    721.4×
  99. 99NamerikawaToyama, Japan
    721.3×
  100. 99FontanaCalifornia, United States
    721.3×
  101. 101ToyamaToyama, Japan
    711.3×
  102. 102JōetsuNiigata, Japan
    711.3×
  103. 103Le RobertMartinique, Martinique
    711.3×
  104. 104Kuala LumpurKuala Lumpur, Malaysia
    711.3×
  105. 104Imarichō-kōSaga, Japan
    711.3×
  106. 106HernandoMississippi, United States
    711.3×
  107. 107OsornoLos Lagos Region, Chile
    701.3×
  108. 107PasadenaTexas, United States
    701.3×
  109. 109TulsaOklahoma, United States
    701.3×
  110. 109ConroeTexas, United States
    701.3×
  111. 111TakeharaHiroshima, Japan
    701.3×
  112. 111SaseboNagasaki, Japan
    701.3×
  113. 111Le LamentinMartinique, Martinique
    701.3×
  114. 111BartlettTennessee, United States
    701.3×
  115. 115College StationTexas, United States
    701.3×
  116. 116MooreOklahoma, United States
    701.3×
  117. 117Ureshinomachi-shimojukuSaga, Japan
    691.3×
  118. 117TocopillaAntofagasta, Chile
    691.3×
  119. 117Villa Poeta José Gálvez BarrenecheaLima region, Peru
    691.3×
  120. 117ImizuToyama, Japan
    691.3×
  121. 121TakasakiGunma, Japan
    691.3×
  122. 121JacksonTennessee, United States
    691.3×
  123. 121GlendoraCalifornia, United States
    691.3×
  124. 121ShonaiYamagata, Japan
    691.3×
  125. 125MiharaHiroshima, Japan
    691.3×
  126. 125YamagataYamagata, Japan
    691.3×
  127. 125CalamaAntofagasta, Chile
    691.3×
  128. 125Ponca CityOklahoma, United States
    691.3×
  129. 129KaratsuSaga, Japan
    691.2×
  130. 129BeltonTexas, United States
    691.2×
  131. 131Kathmandulow-cost sensorsBagmati Province, Nepal
    691.2×
  132. 131McAlesterOklahoma, United States
    691.2×
  133. 131ItoshimaFukuoka, Japan
    691.2×
  134. 134NyūzenToyama, Japan
    691.2×
  135. 134ItoigawaNiigata, Japan
    691.2×
  136. 134GionHiroshima, Japan
    691.2×
  137. 134TakuSaga, Japan
    691.2×
  138. 138BirminghamAlabama, United States
    681.2×
  139. 138East RidgeTennessee, United States
    681.2×
  140. 138La PorteTexas, United States
    681.2×
  141. 138ComptonCalifornia, United States
    681.2×
  142. 138Jurupa ValleyCalifornia, United States
    681.2×
  143. 143NiihamaEhime, Japan
    681.2×
  144. 143ChikumaNagano, Japan
    681.2×
  145. 145SliemaTas-Sliema, Malta
    681.2×
  146. 145Oklahoma CityOklahoma, United States
    681.2×
  147. 145Live OakTexas, United States
    681.2×
  148. 148TsuruokaYamagata, Japan
    681.2×
  149. 148KashimaSaga, Japan
    681.2×
  150. 150OkayaNagano, Japan
    681.2×
  151. 150RiversideCalifornia, United States
    681.2×
  152. 152ŌmuraNagasaki, Japan
    671.2×
  153. 152Kanzakimachi-kanzakiSaga, Japan
    671.2×
  154. 152BadgerAlaska, United States
    671.2×
  155. 155KesennumaMiyagi, Japan
    671.2×
  156. 155Fort WorthTexas, United States
    671.2×
  157. 157MasudaShimane, Japan
    671.2×
  158. 157IyoEhime, Japan
    671.2×
  159. 157Naucalpan de JuárezMéxico, Mexico
    671.2×
  160. 157CorsicanaTexas, United States
    671.2×
  161. 157YurihonjōAkita, Japan
    671.2×
  162. 162ObitaNagasaki, Japan
    671.2×
  163. 162KurumeFukuoka, Japan
    671.2×
  164. 162San Salvador TizatlalliMéxico, Mexico
    671.2×
  165. 165NanaoIshikawa, Japan
    661.2×
  166. 165MontgomeryAlabama, United States
    661.2×
  167. 165Candler-McAfeeGeorgia, United States
    661.2×
  168. 168TakeoSaga, Japan
    661.2×
  169. 168Niitsu-honchōNiigata, Japan
    661.2×
  170. 168DentonTexas, United States
    661.2×
  171. 168BurbankCalifornia, United States
    661.2×
  172. 172ŌmutaFukuoka, Japan
    661.1×
  173. 172EdmondOklahoma, United States
    661.1×
  174. 172San AntonioTexas, United States
    661.1×
  175. 172IkiNagasaki, Japan
    661.1×
  176. 176DyersburgTennessee, United States
    661.1×
  177. 177ShinjōYamagata, Japan
    661.1×
  178. 177SendaiMiyagi, Japan
    661.1×
  179. 177AlgecirasAndalusia, Spain
    661.1×
  180. 177Tepeji del Río de OcampoHidalgo, Mexico
    661.1×
  181. 177MinamiuonumaNiigata, Japan
    661.1×
  182. 182Tottori-shiTottori, Japan
    651.1×
  183. 182OnomichiHiroshima, Japan
    651.1×
  184. 182KofuYamanashi, Japan
    651.1×
  185. 182IzumoShimane, Japan
    651.1×
  186. 182HuntsvilleAlabama, United States
    651.1×
  187. 182Lexingtonlow-cost sensorsMassachusetts, United States
    651.1×
  188. 188SakaiminatoTottori, Japan
    651.1×
  189. 188MakiNiigata, Japan
    651.1×
  190. 188IsahayaNagasaki, Japan
    651.1×
  191. 188YonezawaYamagata, Japan
    651.1×
  192. 188OgaAkita, Japan
    651.1×
  193. 193YaeHiroshima, Japan
    651.1×
  194. 193IshinomakiMiyagi, Japan
    651.1×
  195. 193FukushimaFukushima, Japan
    651.1×
  196. 193JenksOklahoma, United States
    651.1×
  197. 193ChattanoogaTennessee, United States
    651.1×
  198. 193HigashigōSaga, Japan
    651.1×
  199. 199YaitaTochigi, Japan
    651.1×
  200. 199TogitsuNagasaki, Japan
    651.1×

Top 200 of 1,821 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

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SmogRank, most polluted cities, PM2.5, July 29, 2023, smogrank.com/history/2023-07-29 (accessed 2 Oct 2026).

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