SmogRank / History / July 30, 2023

Most polluted cities on July 30, 2023

1,801 cities ranked by their average PM2.5 over the day; the worst was Nacimiento, Chile, at 124.5 µg/m³. Each city's own local calendar day.

← Nacimiento 124.5 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for July 30, 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
    1998.3×
  2. 2LinaresMaule Region, Chile
    1846.8×
  3. 3CuricóMaule Region, Chile
    1836.7×
  4. 4ChillánÑuble, Chile
    1816.6×
  5. 5San CarlosÑuble, Chile
    1725.7×
  6. 6Los ÁngelesBiobio, Chile
    1685.3×
  7. 7RancaguaO'Higgins Region, Chile
    1574.3×
  8. 8TalaganteSantiago Metropolitan, Chile
    1533.9×
  9. 9SantiagoSantiago Metropolitan, Chile
    1533.9×
  10. 10QuillotaValparaiso, Chile
    1463.6×
  11. 11RengoO'Higgins Region, Chile
    1433.5×
  12. 12JakartaJakarta, Indonesia
    1393.4×
  13. 13TalcaMaule Region, Chile
    1303.1×
  14. 13CoronelBiobio, Chile
    1303.1×
  15. 15CuranilahueBiobio, Chile
    1263.0×
  16. 16Puente AltoSantiago Metropolitan, Chile
    1233.0×
  17. 17Puerto VarasLos Lagos Region, Chile
    1222.9×
  18. 18DushanbeDushanbe, Tajikistan
    1182.8×
  19. 19HualquiBiobio, Chile
    1152.7×
  20. 20ValdiviaLos Ríos Region, Chile
    1112.6×
  21. 21CoyhaiqueAysén, Chile
    1112.6×
  22. 22PristinaPristina, Kosovo
    1092.6×
  23. 22Lahorelow-cost sensorsPunjab, Pakistan
    1092.6×
  24. 24KamloopsBritish Columbia, Canada
    1082.6×
  25. 25CauquenesMaule Region, Chile
    1082.5×
  26. 26MexicaliBaja California, Mexico
    1042.4×
  27. 27HanoiHanoi, Vietnam
    1022.4×
  28. 28OsornoLos Lagos Region, Chile
    1012.4×
  29. 29Dhakalow-cost sensorsDhaka Division, Bangladesh
    1012.4×
  30. 30Viña del MarValparaiso, Chile
    1002.3×
  31. 31CoquimboCoquimbo Region, Chile
    982.3×
  32. 32ToméBiobio, Chile
    962.2×
  33. 32LotaBiobio, Chile
    962.2×
  34. 34La UniónLos Ríos Region, Chile
    952.2×
  35. 35TalcahuanoBiobio, Chile
    942.1×
  36. 36Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    922.1×
  37. 37Şabāḩ as SālimMubārak al Kabīr, Kuwait
    922.1×
  38. 37Ciudad JuárezChihuahua, Mexico
    922.1×
  39. 39Puerto MonttLos Lagos Region, Chile
    912.0×
  40. 40Santa Anita - Los FicusLima region, Peru
    912.0×
  41. 41TemucoAraucania, Chile
    902.0×
  42. 42Puerto AysénAysén, Chile
    881.9×
  43. 43QuinteroValparaiso, Chile
    861.9×
  44. 44PentictonBritish Columbia, Canada
    861.9×
  45. 45ConcónValparaiso, Chile
    861.8×
  46. 46SarajevoFederation of B&H, Bosnia and Herzegovina
    841.8×
  47. 47ChiguayanteBiobio, Chile
    831.8×
  48. 48BamakoBamako, Mali
    831.8×
  49. 49NagaiYamagata, Japan
    811.7×
  50. 50SalorTashkent Region, Uzbekistan
    801.7×
  51. 51La SerenaCoquimbo Region, Chile
    791.6×
  52. 52SagaeYamagata, Japan
    781.6×
  53. 52ConcepciónBiobio, Chile
    781.6×
  54. 54AntofagastaAntofagasta, Chile
    771.5×
  55. 55Islamabadlow-cost sensorsIslamabad, Pakistan
    761.5×
  56. 55Kathmandulow-cost sensorsBagmati Province, Nepal
    761.5×
  57. 57Ciudad ApodacaNuevo León, Mexico
    761.5×
  58. 58CopiapóAtacama, Chile
    761.5×
  59. 58SpringdaleArkansas, United States
    761.5×
  60. 60AntananarivoAnalamanga, Madagascar
    751.5×
  61. 61BelgradeCentral Serbia, Serbia
    751.5×
  62. 61Alto HospicioTarapacá, Chile
    751.5×
  63. 63TlaquepaqueJalisco, Mexico
    741.4×
  64. 64XonacatlánMéxico, Mexico
    741.4×
  65. 65FontanaCalifornia, United States
    741.4×
  66. 66San Francisco TlalcilalcalpanMéxico, Mexico
    731.4×
  67. 67ChitoseHokkaido, Japan
    721.4×
  68. 68AricaArica y Parinacota Region, Chile
    721.4×
  69. 69Los AngelesCalifornia, United States
    721.3×
  70. 70GuangzhouGuangdong, China
    711.3×
  71. 71YonezawaYamagata, Japan
    711.3×
  72. 72ChennaiTamil Nadu, India
    701.3×
  73. 72Wan ChaiWan Chai, Hong Kong
    701.3×
  74. 72TakasakiGunma, Japan
    701.3×
  75. 72SendaiMiyagi, Japan
    701.3×
  76. 76LublinLublin, Poland
    701.3×
  77. 77YamagataYamagata, Japan
    691.3×
  78. 78TocopillaAntofagasta, Chile
    691.3×
  79. 78TexarkanaTexas, United States
    691.3×
  80. 80TolucaMéxico, Mexico
    691.2×
  81. 81TsuruokaYamagata, Japan
    691.2×
  82. 81Niitsu-honchōNiigata, Japan
    691.2×
  83. 83HigashineYamagata, Japan
    691.2×
  84. 83LimaLima Province, Peru
    691.2×
  85. 85MontgomeryAlabama, United States
    681.2×
  86. 85DallasTexas, United States
    681.2×
  87. 85RiversideCalifornia, United States
    681.2×
  88. 88Minami-SōmaFukushima, Japan
    681.2×
  89. 89MuroranHokkaido, Japan
    681.2×
  90. 89MooreOklahoma, United States
    681.2×
  91. 89GlendoraCalifornia, United States
    681.2×
  92. 92Karachilow-cost sensorsSindh, Pakistan
    681.2×
  93. 92TulsaOklahoma, United States
    681.2×
  94. 92BendOregon, United States
    681.2×
  95. 92JōetsuNiigata, Japan
    681.2×
  96. 96Natori-shiMiyagi, Japan
    671.2×
  97. 96HakodateHokkaido, Japan
    671.2×
  98. 98YoshiokaMiyagi, Japan
    671.2×
  99. 99ShibataNiigata, Japan
    671.2×
  100. 100Jurupa ValleyCalifornia, United States
    661.2×
  101. 101ShreveportLouisiana, United States
    661.2×
  102. 101Oklahoma CityOklahoma, United States
    661.2×
  103. 101San Salvador TizatlalliMéxico, Mexico
    661.2×
  104. 104SakataYamagata, Japan
    661.1×
  105. 104ShinjōYamagata, Japan
    661.1×
  106. 104McAlesterOklahoma, United States
    661.1×
  107. 107ItoigawaNiigata, Japan
    661.1×
  108. 107ShonaiYamagata, Japan
    661.1×
  109. 109Bang Bo DistrictSamut Prakan, Thailand
    661.1×
  110. 109FukushimaFukushima, Japan
    661.1×
  111. 111CalamaAntofagasta, Chile
    651.1×
  112. 111EdmondOklahoma, United States
    651.1×
  113. 111Aizu-WakamatsuFukushima, Japan
    651.1×
  114. 114IwanumaMiyagi, Japan
    651.1×
  115. 114San Pedro de la PazBiobio, Chile
    651.1×
  116. 116Nong KhaemBangkok, Thailand
    651.1×
  117. 116UozuToyama, Japan
    651.1×
  118. 116NiigataNiigata, Japan
    651.1×
  119. 116NaganoNagano, Japan
    651.1×
  120. 116TsushimaNagasaki, Japan
    651.1×
  121. 121ShiroishiMiyagi, Japan
    651.1×
  122. 121KesennumaMiyagi, Japan
    651.1×
  123. 123BurbankCalifornia, United States
    651.1×
  124. 124BakuBaki, Azerbaijan
    641.1×
  125. 124ComptonCalifornia, United States
    641.1×
  126. 124Thousand OaksCalifornia, United States
    641.1×
  127. 127ShironeNiigata, Japan
    641.1×
  128. 127Kameda-honchōNiigata, Japan
    641.1×
  129. 127ŌsakiMiyagi, Japan
    641.1×
  130. 130KofuYamanashi, Japan
    641.1×
  131. 131KolkataWest Bengal, India
    641.1×
  132. 131NyūzenToyama, Japan
    641.1×
  133. 133IshinomakiMiyagi, Japan
    631.1×
  134. 133TomakomaiHokkaido, Japan
    631.1×
  135. 133Santa CatarinaNuevo León, Mexico
    631.1×
  136. 133SulphurLouisiana, United States
    631.1×
  137. 133JenksOklahoma, United States
    631.1×
  138. 138ColomboWestern Province, Sri Lanka
    631.0×
  139. 138BeltonTexas, United States
    631.0×
  140. 138OgaAkita, Japan
    631.0×
  141. 141Baton RougeLouisiana, United States
    631.0×
  142. 142MakiNiigata, Japan
    631.0×
  143. 142AdaOklahoma, United States
    631.0×
  144. 142Ponca CityOklahoma, United States
    631.0×
  145. 142MinamiuonumaNiigata, Japan
    631.0×
  146. 146SapporoHokkaido, Japan
    631.0×
  147. 146Fort WorthTexas, United States
    631.0×
  148. 148Lake ElsinoreCalifornia, United States
    621.0×
  149. 148ChikumaNagano, Japan
    621.0×
  150. 148KuriharaMiyagi, Japan
    621.0×
  151. 151BaytownTexas, United States
    621.0×
  152. 151HoustonTexas, United States
    621.0×
  153. 153YaitaTochigi, Japan
    621.0×
  154. 153Tagajō-shiMiyagi, Japan
    621.0×
  155. 153KushiroHokkaido, Japan
    621.0×
  156. 153AsahikawaHokkaido, Japan
    621.0×
  157. 153BirminghamAlabama, United States
    621.0×
  158. 153Hawthornelow-cost sensorsCalifornia, United States
    621.0×
  159. 153Santa BarbaraCalifornia, United States
    621.0×
  160. 153Simi ValleyCalifornia, United States
    621.0×
  161. 161Phra PradaengSamut Prakan, Thailand
    621.0×
  162. 161CorsicanaTexas, United States
    621.0×
  163. 163YokoteAkita, Japan
    621.0×
  164. 163RedmondOregon, United States
    621.0×
  165. 165AustinTexas, United States
    611.0×
  166. 166Ulu BedokSingapore
    611.0×
  167. 166SliemaTas-Sliema, Malta
    611.0×
  168. 166Ciudad Benito JuárezNuevo León, Mexico
    611.0×
  169. 169MatsumotoNagano, Japan
    611.0×
  170. 169IchinosekiIwate, Japan
    611.0×
  171. 169CalexicoCalifornia, United States
    611.0×
  172. 169SōmaFukushima, Japan
    611.0×
  173. 173HueytownAlabama, United States
    611.0×
  174. 173ValdostaGeorgia, United States
    611.0×
  175. 173TomeMiyagi, Japan
    611.0×
  176. 176ŌtsukiYamanashi, Japan
    611.0×
  177. 176Lagoslow-cost sensorsLagos, Nigeria
    611.0×
  178. 176LawtonOklahoma, United States
    611.0×
  179. 176DentonTexas, United States
    611.0×
  180. 176Torrancelow-cost sensorsCalifornia, United States
    611.0×
  181. 176UnnanShimane, Japan
    611.0×
  182. 182BucharestBucharest, Romania
    610.9×
  183. 182DębicaSubcarpathia, Poland
    610.9×
  184. 182TakaokaToyama, Japan
    610.9×
  185. 182Ferry PassFlorida, United States
    610.9×
  186. 182MaconGeorgia, United States
    610.9×
  187. 182Carsonlow-cost sensorsCalifornia, United States
    610.9×
  188. 182La Crescenta-Montroselow-cost sensorsCalifornia, United States
    610.9×
  189. 189Fort SmithArkansas, United States
    600.9×
  190. 189Warner RobinsGeorgia, United States
    600.9×
  191. 189ConroeTexas, United States
    600.9×
  192. 189PasadenaTexas, United States
    600.9×
  193. 193KiryūGunma, Japan
    600.9×
  194. 193KōriyamaFukushima, Japan
    600.9×
  195. 193YurihonjōAkita, Japan
    600.9×
  196. 196ImaichiTochigi, Japan
    600.9×
  197. 196CuencaCastille-La Mancha, Spain
    600.9×
  198. 196Missouri CityTexas, United States
    600.9×
  199. 199AsprópyrgosAttica, Greece
    600.9×
  200. 199AkitaAkita, Japan
    600.9×

Top 200 of 1,801 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 30, 2023, smogrank.com/history/2023-07-30 (accessed 2 Oct 2026).

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