SmogRank / History / April 9, 2024

Most polluted cities on April 9, 2024

1,408 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 172.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during April 9, 2024. All episodes.

← N'Djamena 172.0 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for April 9, 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. 1N'DjamenaN’Djaména, Chad
    24711.5×
  2. 2Kathmandulow-cost sensorsBagmati Province, Nepal
    24411.2×
  3. 3ShenyangLiaoning, China
    2088.9×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    1968.0×
  5. 5TlaquepaqueJalisco, Mexico
    1897.3×
  6. 6Lahorelow-cost sensorsPunjab, Pakistan
    1725.7×
  7. 7Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1675.3×
  8. 8BaghdadBaghdad, Iraq
    1554.1×
  9. 9Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1543.9×
  10. 10DelhiDelhi, India
    1533.9×
  11. 11KolkataWest Bengal, India
    1513.7×
  12. 12Vientianelow-cost sensorsVientiane Prefecture, Laos
    1443.5×
  13. 13Ponca CityOklahoma, United States
    1413.5×
  14. 14YangonYangon, Myanmar
    1393.4×
  15. 15GunsanJeollabuk-do, South Korea
    1192.8×
  16. 16RabinalBaja Verapaz, Guatemala
    1182.8×
  17. 17ManamaManama, Bahrain
    1172.8×
  18. 18YŏnmuChungcheongnam-do, South Korea
    1162.8×
  19. 19IksanJeollabuk-do, South Korea
    1152.8×
  20. 20NonsanChungcheongnam-do, South Korea
    1142.7×
  21. 21JakartaJakarta, Indonesia
    1142.7×
  22. 21NamsaJeollabuk-do, South Korea
    1142.7×
  23. 23HanoiHanoi, Vietnam
    1122.7×
  24. 24BoryeongChungcheongnam-do, South Korea
    1122.7×
  25. 25ShanghaiShanghai, China
    1112.6×
  26. 26Guatemala CityGuatemala, Guatemala
    1102.6×
  27. 27BuyeoChungcheongnam-do, South Korea
    1072.5×
  28. 27KimjeJeollabuk-do, South Korea
    1072.5×
  29. 29Puerto VarasLos Lagos Region, Chile
    1072.5×
  30. 30KigaliKigali, Rwanda
    1072.5×
  31. 31BuanJeollabuk-do, South Korea
    1072.5×
  32. 32CoyhaiqueAysén, Chile
    1052.5×
  33. 33HyderabadTelangana, India
    1052.5×
  34. 34JeonjuJeollabuk-do, South Korea
    1042.4×
  35. 35WanjuJeollabuk-do, South Korea
    1042.4×
  36. 36Islamabadlow-cost sensorsIslamabad, Pakistan
    1032.4×
  37. 37DerbyKansas, United States
    1032.4×
  38. 38CelayaGuanajuato, Mexico
    1012.4×
  39. 39MumbaiMaharashtra, India
    992.3×
  40. 40ImsilJeollabuk-do, South Korea
    972.3×
  41. 40Oklahoma CityOklahoma, United States
    972.3×
  42. 42YesanChungcheongnam-do, South Korea
    962.2×
  43. 43TangjinChungcheongnam-do, South Korea
    962.2×
  44. 44MissionTexas, United States
    942.1×
  45. 45HongseongChungcheongnam-do, South Korea
    942.1×
  46. 46DamyangJeollanam-do, South Korea
    932.1×
  47. 46EdmondOklahoma, United States
    932.1×
  48. 48SeonghwanChungcheongnam-do, South Korea
    932.1×
  49. 49AsanChungcheongnam-do, South Korea
    932.1×
  50. 50SinanJeollanam-do, South Korea
    912.0×
  51. 51ChangsuJeollabuk-do, South Korea
    912.0×
  52. 51JeongeupJeollabuk-do, South Korea
    912.0×
  53. 53BeijingBeijing, China
    912.0×
  54. 54SalamancaGuanajuato, Mexico
    902.0×
  55. 55GongjuChungcheongnam-do, South Korea
    892.0×
  56. 56Koch'angJeollabuk-do, South Korea
    881.9×
  57. 57Karachilow-cost sensorsSindh, Pakistan
    881.9×
  58. 57SantiagoSantiago Metropolitan, Chile
    881.9×
  59. 59EdinburgTexas, United States
    871.9×
  60. 60KinzanChungcheongnam-do, South Korea
    861.9×
  61. 61SeosanChungcheongnam-do, South Korea
    861.9×
  62. 62QuillotaValparaiso, Chile
    861.8×
  63. 63Puente AltoSantiago Metropolitan, Chile
    851.8×
  64. 64AntananarivoAnalamanga, Madagascar
    851.8×
  65. 65TocopillaAntofagasta, Chile
    851.8×
  66. 66JangseongJeollanam-do, South Korea
    841.8×
  67. 67HualquiBiobio, Chile
    841.8×
  68. 68Addis AbabaAddis Ababa, Ethiopia
    831.8×
  69. 69MuanJeollanam-do, South Korea
    831.7×
  70. 70Hwaseong-siGyeonggi-do, South Korea
    831.7×
  71. 71AshgabatAshgabat, Turkmenistan
    821.7×
  72. 71SuncheonJeollanam-do, South Korea
    821.7×
  73. 73Eagle PassTexas, United States
    821.7×
  74. 74YeonggwangJeollanam-do, South Korea
    821.7×
  75. 74NangenJeollabuk-do, South Korea
    821.7×
  76. 76BakuBaki, Azerbaijan
    811.7×
  77. 76CheonanChungcheongnam-do, South Korea
    811.7×
  78. 78ChennaiTamil Nadu, India
    811.7×
  79. 78Kuala LumpurKuala Lumpur, Malaysia
    811.7×
  80. 78TalaganteSantiago Metropolitan, Chile
    811.7×
  81. 81AbasoloGuanajuato, Mexico
    811.7×
  82. 82JungpyongNorth Chungcheong, South Korea
    801.7×
  83. 83MokpoJeollanam-do, South Korea
    801.7×
  84. 83AricaArica y Parinacota Region, Chile
    801.7×
  85. 85KoesanNorth Chungcheong, South Korea
    801.6×
  86. 85GimcheonGyeongsangbuk-do, South Korea
    801.6×
  87. 85Corpus ChristiTexas, United States
    801.6×
  88. 88SangjuGyeongsangbuk-do, South Korea
    801.6×
  89. 88Ulan BatorUlaanbaatar, Mongolia
    801.6×
  90. 90MooreOklahoma, United States
    801.6×
  91. 91YeongdongNorth Chungcheong, South Korea
    801.6×
  92. 92MasanGwangju, South Korea
    791.6×
  93. 92León de los AldamaGuanajuato, Mexico
    791.6×
  94. 94TemucoAraucania, Chile
    791.6×
  95. 95La UniónLos Ríos Region, Chile
    791.6×
  96. 96Live OakTexas, United States
    781.6×
  97. 97PyeongtaekGyeonggi-do, South Korea
    781.6×
  98. 98KwangyangJeollanam-do, South Korea
    771.6×
  99. 98SarajevoFederation of B&H, Bosnia and Herzegovina
    771.6×
  100. 100CoronelBiobio, Chile
    771.5×
  101. 100SeogwipoJeju-do, South Korea
    771.5×
  102. 102KuryeJeollanam-do, South Korea
    771.5×
  103. 102Gimpo-siGyeonggi-do, South Korea
    771.5×
  104. 102Puerto AysénAysén, Chile
    771.5×
  105. 105Kampalalow-cost sensorsCentral Region, Uganda
    771.5×
  106. 105DaejeonDaejeon, South Korea
    771.5×
  107. 105GwangjuGwangju, South Korea
    771.5×
  108. 105IncheonIncheon, South Korea
    771.5×
  109. 109Taesal-liChungcheongnam-do, South Korea
    761.5×
  110. 109QuinteroValparaiso, Chile
    761.5×
  111. 109IrapuatoGuanajuato, Mexico
    761.5×
  112. 109San AntonioTexas, United States
    761.5×
  113. 113PubalGyeonggi-do, South Korea
    761.5×
  114. 114Chinch'ŏnNorth Chungcheong, South Korea
    761.5×
  115. 115Ganghwa-gunIncheon, South Korea
    761.5×
  116. 115LawrencevilleGeorgia, United States
    761.5×
  117. 117Ansan-siGyeonggi-do, South Korea
    751.5×
  118. 118ValdiviaLos Ríos Region, Chile
    751.5×
  119. 119Heroica MatamorosTamaulipas, Mexico
    751.5×
  120. 119Viña del MarValparaiso, Chile
    751.5×
  121. 121SuwonGyeonggi-do, South Korea
    751.5×
  122. 122Cheongju-siNorth Chungcheong, South Korea
    751.5×
  123. 122Imperial BeachCalifornia, United States
    751.5×
  124. 124NacimientoBiobio, Chile
    741.4×
  125. 125GumiGyeongsangbuk-do, South Korea
    741.4×
  126. 125RancaguaO'Higgins Region, Chile
    741.4×
  127. 127DushanbeDushanbe, Tajikistan
    741.4×
  128. 128ColomboWestern Province, Sri Lanka
    741.4×
  129. 128YeojuGyeonggi-do, South Korea
    741.4×
  130. 128OsanGyeonggi-do, South Korea
    741.4×
  131. 128San Miguel de AllendeGuanajuato, Mexico
    741.4×
  132. 128SejongSejong-si, South Korea
    741.4×
  133. 133ToméBiobio, Chile
    741.4×
  134. 134AntofagastaAntofagasta, Chile
    731.4×
  135. 135CairoCairo, Egypt
    731.4×
  136. 136WaegwanGyeongsangbuk-do, South Korea
    731.4×
  137. 136AnseongGyeonggi-do, South Korea
    731.4×
  138. 136LawtonOklahoma, United States
    731.4×
  139. 139Abujalow-cost sensorsFCT, Nigeria
    731.4×
  140. 139RengoO'Higgins Region, Chile
    731.4×
  141. 141ChinjuGyeongsangnam-do, South Korea
    731.4×
  142. 142GwangmyeongGyeonggi-do, South Korea
    721.4×
  143. 143CuricóMaule Region, Chile
    721.4×
  144. 143KennesawGeorgia, United States
    721.4×
  145. 145ConcónValparaiso, Chile
    721.4×
  146. 146Nong KhaemBangkok, Thailand
    711.3×
  147. 146Nakhon PathomNakhon Pathom, Thailand
    711.3×
  148. 148Goyang-siGyeonggi-do, South Korea
    711.3×
  149. 148BelmopanCayo District, Belize
    711.3×
  150. 150Anyang-siGyeonggi-do, South Korea
    711.3×
  151. 150OsornoLos Lagos Region, Chile
    711.3×
  152. 150GainesvilleGeorgia, United States
    711.3×
  153. 153JangheungJeollanam-do, South Korea
    711.3×
  154. 154ChungjuNorth Chungcheong, South Korea
    711.3×
  155. 154TalcahuanoBiobio, Chile
    711.3×
  156. 156YeongjuGyeongsangbuk-do, South Korea
    701.3×
  157. 157AndongGyeongsangbuk-do, South Korea
    701.3×
  158. 158Bucheon-siGyeonggi-do, South Korea
    701.3×
  159. 158HadongGyeongsangnam-do, South Korea
    701.3×
  160. 160CopiapóAtacama, Chile
    701.3×
  161. 160GuanajuatoGuanajuato, Mexico
    701.3×
  162. 162MungyeongGyeongsangbuk-do, South Korea
    691.3×
  163. 162Jeju CityJeju-do, South Korea
    691.3×
  164. 164NajuJeollanam-do, South Korea
    691.3×
  165. 164MiryangGyeongsangnam-do, South Korea
    691.3×
  166. 164MéridaYucatán, Mexico
    691.3×
  167. 167Silao de la VictoriaGuanajuato, Mexico
    691.2×
  168. 168PohangGyeongsangbuk-do, South Korea
    691.2×
  169. 169Icheon-siGyeonggi-do, South Korea
    691.2×
  170. 169HwadoGyeonggi-do, South Korea
    691.2×
  171. 171VillarricaAraucania, Chile
    681.2×
  172. 171West MifflinPennsylvania, United States
    681.2×
  173. 173MunsanGyeonggi-do, South Korea
    681.2×
  174. 173Gyeongsan-siGyeongsangbuk-do, South Korea
    681.2×
  175. 175GwangjuGyeonggi-do, South Korea
    681.2×
  176. 175GaigeturiJeju-do, South Korea
    681.2×
  177. 177San Pedro de la PazBiobio, Chile
    681.2×
  178. 178HwasunJeollanam-do, South Korea
    681.2×
  179. 179EisenGyeongsangbuk-do, South Korea
    671.2×
  180. 179WŏnjuGangwon-do, South Korea
    671.2×
  181. 179GwangyangJeollanam-do, South Korea
    671.2×
  182. 179CalamaAntofagasta, Chile
    671.2×
  183. 179Phenix CityAlabama, United States
    671.2×
  184. 184GyeongjuGyeongsangbuk-do, South Korea
    671.2×
  185. 184DearbornMichigan, United States
    671.2×
  186. 186SeoulSeoul, South Korea
    671.2×
  187. 186ChillánÑuble, Chile
    671.2×
  188. 188QuilpuéValparaiso, Chile
    671.2×
  189. 189Guri-siGyeonggi-do, South Korea
    661.2×
  190. 189WichitaKansas, United States
    661.2×
  191. 191YeosuJeollanam-do, South Korea
    661.1×
  192. 191Banja LukaSrpska, Bosnia and Herzegovina
    661.1×
  193. 191ConcepciónBiobio, Chile
    661.1×
  194. 194AustinTexas, United States
    661.1×
  195. 195Mueang NonthaburiNonthaburi, Thailand
    661.1×
  196. 196WoodlandsSingapore
    651.1×
  197. 196CoquimboCoquimbo Region, Chile
    651.1×
  198. 196BoseongJeollanam-do, South Korea
    651.1×
  199. 199BangkokBangkok, Thailand
    651.1×
  200. 199CuranilahueBiobio, Chile
    651.1×

Top 200 of 1,408 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, April 9, 2024, smogrank.com/history/2024-04-09 (accessed 3 Oct 2026).

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