SmogRank / History / July 31, 2024

Most polluted cities on July 31, 2024

2,184 cities ranked by their average PM2.5 over the day; the worst was Kinshasa, Democratic Republic of the Congo, at 143.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during July 31, 2024. All episodes.

← Kinshasa 143.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for July 31, 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. 1Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    2189.5×
  2. 2ParadiseCalifornia, United States
    2078.8×
  3. 3NacimientoBiobio, Chile
    2028.5×
  4. 4CoyhaiqueAysén, Chile
    1937.7×
  5. 5VillarricaAraucania, Chile
    1937.7×
  6. 6Los ÁngelesBiobio, Chile
    1907.4×
  7. 7ValdiviaLos Ríos Region, Chile
    1877.1×
  8. 8DushanbeDushanbe, Tajikistan
    1826.6×
  9. 9RancaguaO'Higgins Region, Chile
    1796.4×
  10. 10Lahorelow-cost sensorsPunjab, Pakistan
    1796.4×
  11. 11RengoO'Higgins Region, Chile
    1796.4×
  12. 12CauquenesMaule Region, Chile
    1786.2×
  13. 13ChillánÑuble, Chile
    1745.9×
  14. 14HualquiBiobio, Chile
    1735.8×
  15. 15CuricóMaule Region, Chile
    1705.5×
  16. 16ManamaManama, Bahrain
    1675.2×
  17. 17Santa Anita - Los FicusLima region, Peru
    1675.2×
  18. 18TalcaMaule Region, Chile
    1644.9×
  19. 19Puente AltoSantiago Metropolitan, Chile
    1604.5×
  20. 20SantiagoSantiago Metropolitan, Chile
    1564.2×
  21. 21CoronelBiobio, Chile
    1554.0×
  22. 22OsornoLos Lagos Region, Chile
    1544.0×
  23. 23Kampalalow-cost sensorsCentral Region, Uganda
    1533.9×
  24. 24AntananarivoAnalamanga, Madagascar
    1483.6×
  25. 25CuranilahueBiobio, Chile
    1433.5×
  26. 26Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1423.5×
  27. 26TemucoAraucania, Chile
    1423.5×
  28. 28CairoCairo, Egypt
    1403.4×
  29. 29La UniónLos Ríos Region, Chile
    1393.4×
  30. 30ChiguayanteBiobio, Chile
    1263.0×
  31. 31TalaganteSantiago Metropolitan, Chile
    1233.0×
  32. 32Dhakalow-cost sensorsDhaka Division, Bangladesh
    1172.8×
  33. 33BakuBaki, Azerbaijan
    1152.7×
  34. 34HualpénBiobio, Chile
    1122.7×
  35. 35Corpus ChristiTexas, United States
    1112.6×
  36. 36Puerto AysénAysén, Chile
    1112.6×
  37. 37MissionTexas, United States
    1072.5×
  38. 38BaghdadBaghdad, Iraq
    1062.5×
  39. 39JakartaJakarta, Indonesia
    1042.4×
  40. 39ShreveportLouisiana, United States
    1042.4×
  41. 41Live OakTexas, United States
    1032.4×
  42. 42Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1022.4×
  43. 43AustinTexas, United States
    1002.4×
  44. 43ConroeTexas, United States
    1002.4×
  45. 45PérigueuxNew Aquitaine, France
    992.3×
  46. 46StrumicaStrumica, North Macedonia
    982.3×
  47. 47HoustonTexas, United States
    982.3×
  48. 48QuillotaValparaiso, Chile
    982.3×
  49. 49EdinburgTexas, United States
    972.3×
  50. 50San Francisco De BorjaLima region, Peru
    972.3×
  51. 51KochaniKochani, North Macedonia
    972.3×
  52. 51San MarcosTexas, United States
    972.3×
  53. 53TalcahuanoBiobio, Chile
    972.2×
  54. 54ToméBiobio, Chile
    962.2×
  55. 55CorsicanaTexas, United States
    962.2×
  56. 56TaylorTexas, United States
    952.2×
  57. 57Heroica MatamorosTamaulipas, Mexico
    952.2×
  58. 58Mission BendTexas, United States
    952.2×
  59. 58Port ArthurTexas, United States
    952.2×
  60. 60PasadenaTexas, United States
    952.2×
  61. 61GeorgetownTexas, United States
    942.2×
  62. 62BeltonTexas, United States
    942.1×
  63. 63Missouri CityTexas, United States
    932.1×
  64. 64College StationTexas, United States
    932.1×
  65. 65LimaLima Province, Peru
    932.1×
  66. 66Eagle PassTexas, United States
    932.1×
  67. 67ConcepciónBiobio, Chile
    932.1×
  68. 68SaginawTexas, United States
    922.1×
  69. 69BaytownTexas, United States
    922.1×
  70. 70AntofagastaAntofagasta, Chile
    922.1×
  71. 70San Pedro de la PazBiobio, Chile
    922.1×
  72. 72ShenyangLiaoning, China
    912.0×
  73. 73MaputoMaputo City, Mozambique
    912.0×
  74. 74Fort WorthTexas, United States
    902.0×
  75. 75MillcreekUtah, United States
    902.0×
  76. 76LongmontColorado, United States
    892.0×
  77. 76TooeleUtah, United States
    892.0×
  78. 78CallaoCallao, Peru
    892.0×
  79. 79LafayetteLouisiana, United States
    881.9×
  80. 79La PorteTexas, United States
    881.9×
  81. 81GalvestonTexas, United States
    871.9×
  82. 82Melbournelow-cost sensorsVictoria, Australia
    871.9×
  83. 83KolkataWest Bengal, India
    851.8×
  84. 84OremUtah, United States
    851.8×
  85. 85TexarkanaTexas, United States
    851.8×
  86. 85HerrimanUtah, United States
    851.8×
  87. 85Salt Lake CityUtah, United States
    851.8×
  88. 88West JordanUtah, United States
    841.8×
  89. 89BendOregon, United States
    841.8×
  90. 90Baton RougeLouisiana, United States
    841.8×
  91. 91Abujalow-cost sensorsFCT, Nigeria
    831.8×
  92. 91QuilpuéValparaiso, Chile
    831.8×
  93. 93DentonTexas, United States
    831.7×
  94. 94Puerto MonttLos Lagos Region, Chile
    821.7×
  95. 94West Valley CityUtah, United States
    821.7×
  96. 96Puerto VarasLos Lagos Region, Chile
    821.7×
  97. 97QuinteroValparaiso, Chile
    821.7×
  98. 98AlgiersAlgiers, Algeria
    811.7×
  99. 99BountifulUtah, United States
    801.7×
  100. 100BeijingBeijing, China
    801.7×
  101. 101DelhiDelhi, India
    781.6×
  102. 102Little RockArkansas, United States
    771.5×
  103. 103KanchanaburiKanchanaburi, Thailand
    771.5×
  104. 104Islamabadlow-cost sensorsIslamabad, Pakistan
    771.5×
  105. 104LormontNew Aquitaine, France
    771.5×
  106. 104RenoNevada, United States
    771.5×
  107. 107ŁukówLublin, Poland
    761.5×
  108. 108Spanish SpringsNevada, United States
    761.5×
  109. 109N'DjamenaN’Djaména, Chad
    761.5×
  110. 110ChennaiTamil Nadu, India
    751.5×
  111. 110DallasTexas, United States
    751.5×
  112. 112MagnaUtah, United States
    751.5×
  113. 113Villa Poeta José Gálvez BarrenecheaLima region, Peru
    751.5×
  114. 114HanoiHanoi, Vietnam
    751.5×
  115. 115AricaArica y Parinacota Region, Chile
    741.4×
  116. 116SarajevoFederation of B&H, Bosnia and Herzegovina
    741.4×
  117. 117McAlesterOklahoma, United States
    741.4×
  118. 118ThorntonColorado, United States
    731.4×
  119. 119SpringdaleArkansas, United States
    731.4×
  120. 120Viña del MarValparaiso, Chile
    731.4×
  121. 120ConcónValparaiso, Chile
    731.4×
  122. 122RoveretoTrentino-Alto Adige, Italy
    721.4×
  123. 123AdaOklahoma, United States
    721.4×
  124. 124Karachilow-cost sensorsSindh, Pakistan
    721.3×
  125. 124BordeauxNew Aquitaine, France
    721.3×
  126. 124BolzanoTrentino-Alto Adige, Italy
    721.3×
  127. 124BoulderColorado, United States
    721.3×
  128. 124Spanish ForkUtah, United States
    721.3×
  129. 129Khon KaenKhon Kaen, Thailand
    711.3×
  130. 130MenenFlanders, Belgium
    711.3×
  131. 131AngoulêmeNew Aquitaine, France
    711.3×
  132. 132Sing BuriSing Buri, Thailand
    701.3×
  133. 132ShanghaiShanghai, China
    701.3×
  134. 132SpeyerRheinland-Pfalz, Germany
    701.3×
  135. 132West MemphisArkansas, United States
    701.3×
  136. 132KenmoreNew York, United States
    701.3×
  137. 137KrefeldNorth Rhine-Westphalia, Germany
    701.3×
  138. 137MooreOklahoma, United States
    701.3×
  139. 139RoeselareFlanders, Belgium
    701.3×
  140. 140KaiserslauternRheinland-Pfalz, Germany
    701.3×
  141. 140JacksonMississippi, United States
    701.3×
  142. 142AshgabatAshgabat, Turkmenistan
    701.3×
  143. 142PristinaPristina, Kosovo
    701.3×
  144. 142KoksijdeFlanders, Belgium
    701.3×
  145. 142Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    701.3×
  146. 146Lop BuriLopburi, Thailand
    691.3×
  147. 146Alto HospicioTarapacá, Chile
    691.3×
  148. 148SalorTashkent Region, Uzbekistan
    691.2×
  149. 149Saint-ÉtienneAuvergne-Rhône-Alpes, France
    691.2×
  150. 150Addis AbabaAddis Ababa, Ethiopia
    691.2×
  151. 151Bang NaBangkok, Thailand
    681.2×
  152. 152TilburgNorth Brabant, The Netherlands
    681.2×
  153. 152LochristiFlanders, Belgium
    681.2×
  154. 154Ludwigshafen am RheinRheinland-Pfalz, Germany
    681.2×
  155. 154New OrleansLouisiana, United States
    681.2×
  156. 156IzegemFlanders, Belgium
    681.2×
  157. 156Fort SmithArkansas, United States
    681.2×
  158. 156ChalmetteLouisiana, United States
    681.2×
  159. 159AsprópyrgosAttica, Greece
    671.2×
  160. 159RoubaixHauts-de-France, France
    671.2×
  161. 161Nakhon RatchasimaNakhon Ratchasima, Thailand
    671.2×
  162. 161CopiapóAtacama, Chile
    671.2×
  163. 161AltamontOregon, United States
    671.2×
  164. 164EdmondOklahoma, United States
    671.2×
  165. 165Jacobo HunterArequipa, Peru
    671.2×
  166. 166NiortNew Aquitaine, France
    671.2×
  167. 167NurembergBavaria, Germany
    661.2×
  168. 167GrenobleAuvergne-Rhône-Alpes, France
    661.2×
  169. 167Oklahoma CityOklahoma, United States
    661.2×
  170. 170AstanaAstana, Kazakhstan
    661.2×
  171. 170KalasinKalasin, Thailand
    661.2×
  172. 170MentonProvence-Alpes-Côte d'Azur, France
    661.2×
  173. 170PocatelloIdaho, United States
    661.2×
  174. 174Accralow-cost sensorsGreater Accra, Ghana
    661.1×
  175. 174TulsaOklahoma, United States
    661.1×
  176. 174BartlettTennessee, United States
    661.1×
  177. 177CaenNormandy, France
    661.1×
  178. 177KennerLouisiana, United States
    661.1×
  179. 177South Lake TahoeCalifornia, United States
    661.1×
  180. 177Carson CityNevada, United States
    661.1×
  181. 181TocopillaAntofagasta, Chile
    661.1×
  182. 181HighlandUtah, United States
    661.1×
  183. 183MechelenFlanders, Belgium
    661.1×
  184. 183GentFlanders, Belgium
    661.1×
  185. 183YauriCuzco Department, Peru
    661.1×
  186. 186EvergemFlanders, Belgium
    651.1×
  187. 186BrusselsBrussels Capital, Belgium
    651.1×
  188. 188CheyenneWyoming, United States
    651.1×
  189. 189BitolaBitola, North Macedonia
    651.1×
  190. 189RatchaburiRatchaburi, Thailand
    651.1×
  191. 189VallettaValletta, Malta
    651.1×
  192. 189Clermont-FerrandAuvergne-Rhône-Alpes, France
    651.1×
  193. 189CoquimboCoquimbo Region, Chile
    651.1×
  194. 189CalamaAntofagasta, Chile
    651.1×
  195. 195Wan ChaiWan Chai, Hong Kong
    651.1×
  196. 196KavadarciKavadarci, North Macedonia
    651.1×
  197. 196SatunSatun, Thailand
    651.1×
  198. 196KortrijkFlanders, Belgium
    651.1×
  199. 196WormsRheinland-Pfalz, Germany
    651.1×
  200. 196MainzRheinland-Pfalz, Germany
    651.1×

Top 200 of 2,184 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 31, 2024, smogrank.com/history/2024-07-31 (accessed 3 Oct 2026).

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