SmogRank / History / April 29, 2024

Most polluted cities on April 29, 2024

2,324 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 187.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during April 29, 2024. All episodes.

← N'Djamena 187.0 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for April 29, 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
    26212.5×
  2. 2BaghdadBaghdad, Iraq
    23510.7×
  3. 3Kathmandulow-cost sensorsBagmati Province, Nepal
    1776.1×
  4. 4PhayaoPhayao, Thailand
    1745.9×
  5. 5NanNan, Thailand
    1735.8×
  6. 6LampangLampang, Thailand
    1705.5×
  7. 7Ciudad JuárezChihuahua, Mexico
    1695.4×
  8. 8Ubon RatchathaniUbon Ratchathani, Thailand
    1685.3×
  9. 9Santa Anita - Los FicusLima region, Peru
    1665.1×
  10. 10Mae SaiChiang Rai, Thailand
    1655.0×
  11. 11Chiang RaiChiang Rai, Thailand
    1634.8×
  12. 12Chiang MaiChiang Mai, Thailand
    1614.7×
  13. 13DelhiDelhi, India
    1614.7×
  14. 14Dhakalow-cost sensorsDhaka Division, Bangladesh
    1604.5×
  15. 15RengoO'Higgins Region, Chile
    1574.3×
  16. 16Vientianelow-cost sensorsVientiane Prefecture, Laos
    1564.2×
  17. 17KolkataWest Bengal, India
    1544.0×
  18. 18LamphunLamphun, Thailand
    1523.8×
  19. 18UttaraditUttaradit, Thailand
    1523.8×
  20. 20NacimientoBiobio, Chile
    1523.8×
  21. 21MukdahanMukdahan, Thailand
    1433.5×
  22. 22KalasinKalasin, Thailand
    1383.4×
  23. 23SukhothaiSukhothai, Thailand
    1343.3×
  24. 24PhraePhrae, Thailand
    1333.2×
  25. 25HanoiHanoi, Vietnam
    1333.2×
  26. 26Kamphaeng PhetKamphaeng Phet, Thailand
    1313.2×
  27. 27Mae SotTak, Thailand
    1283.1×
  28. 28CoyhaiqueAysén, Chile
    1263.1×
  29. 29YasothonYasothon, Thailand
    1243.0×
  30. 30Sakon NakhonSakon Nakhon, Thailand
    1233.0×
  31. 31Udon ThaniUdon Thani, Thailand
    1233.0×
  32. 32Nong Bua LamphuNong Bua Lamphu, Thailand
    1202.9×
  33. 33Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1192.9×
  34. 34Lahorelow-cost sensorsPunjab, Pakistan
    1172.8×
  35. 35YangonYangon, Myanmar
    1152.7×
  36. 36Puerto AysénAysén, Chile
    1132.7×
  37. 37HyderabadTelangana, India
    1132.7×
  38. 38Amnat CharoenAmnat Charoen, Thailand
    1122.7×
  39. 39PhetchabunPhetchabun, Thailand
    1042.4×
  40. 40ChillánÑuble, Chile
    1032.4×
  41. 41KanchanaburiKanchanaburi, Thailand
    1022.4×
  42. 42LimaLima Province, Peru
    1022.4×
  43. 43CairoCairo, Egypt
    992.3×
  44. 44RancaguaO'Higgins Region, Chile
    972.3×
  45. 45Si Sa KetSi Sa Ket, Thailand
    972.2×
  46. 46Puente AltoSantiago Metropolitan, Chile
    962.2×
  47. 47Khon KaenKhon Kaen, Thailand
    962.2×
  48. 48ĆuprijaCentral Serbia, Serbia
    962.2×
  49. 49MumbaiMaharashtra, India
    952.2×
  50. 50San CarlosÑuble, Chile
    942.1×
  51. 51PhichitPhichit, Thailand
    932.1×
  52. 51Nakhon SawanNakhon Sawan, Thailand
    932.1×
  53. 53JakartaJakarta, Indonesia
    922.1×
  54. 54Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    922.1×
  55. 55MissionTexas, United States
    922.1×
  56. 56ChaiyaphumChaiyaphum, Thailand
    912.1×
  57. 57Roi EtRoi Et, Thailand
    912.0×
  58. 58YesanChungcheongnam-do, South Korea
    892.0×
  59. 59ShanghaiShanghai, China
    892.0×
  60. 60TalcaMaule Region, Chile
    881.9×
  61. 61RatchaburiRatchaburi, Thailand
    881.9×
  62. 62AcerraCampania, Italy
    871.9×
  63. 63CuricóMaule Region, Chile
    861.9×
  64. 63EdinburgTexas, United States
    861.9×
  65. 65SantiagoSantiago Metropolitan, Chile
    861.9×
  66. 66Chai NatChai Nat, Thailand
    861.9×
  67. 67Suphan BuriSuphan Buri, Thailand
    851.8×
  68. 67ShenyangLiaoning, China
    851.8×
  69. 69TangjinChungcheongnam-do, South Korea
    851.8×
  70. 70Nakhon PathomNakhon Pathom, Thailand
    851.8×
  71. 71QuillotaValparaiso, Chile
    851.8×
  72. 72Jacobo HunterArequipa, Peru
    841.8×
  73. 73HongseongChungcheongnam-do, South Korea
    841.8×
  74. 74Villa Poeta José Gálvez BarrenecheaLima region, Peru
    831.8×
  75. 75SeonghwanChungcheongnam-do, South Korea
    831.7×
  76. 75San Luis de la PazGuanajuato, Mexico
    831.7×
  77. 77CauquenesMaule Region, Chile
    831.7×
  78. 78CelayaGuanajuato, Mexico
    821.7×
  79. 79Addis AbabaAddis Ababa, Ethiopia
    821.7×
  80. 79IrapuatoGuanajuato, Mexico
    821.7×
  81. 81GimcheonGyeongsangbuk-do, South Korea
    811.7×
  82. 82Nakhon RatchasimaNakhon Ratchasima, Thailand
    811.7×
  83. 83GunsanJeollabuk-do, South Korea
    811.7×
  84. 84Sing BuriSing Buri, Thailand
    801.7×
  85. 84BuanJeollabuk-do, South Korea
    801.7×
  86. 84Corpus ChristiTexas, United States
    801.7×
  87. 87TocopillaAntofagasta, Chile
    801.6×
  88. 87Puerto MonttLos Lagos Region, Chile
    801.6×
  89. 89PhuketPhuket, Thailand
    801.6×
  90. 89WaegwanGyeongsangbuk-do, South Korea
    801.6×
  91. 91NumataGunma, Japan
    801.6×
  92. 92BeijingBeijing, China
    791.6×
  93. 93YeojuGyeonggi-do, South Korea
    791.6×
  94. 94AsanChungcheongnam-do, South Korea
    791.6×
  95. 94La UniónLos Ríos Region, Chile
    791.6×
  96. 96SangjuGyeongsangbuk-do, South Korea
    791.6×
  97. 97JeddahMecca Region, Saudi Arabia
    781.6×
  98. 98IncheonIncheon, South Korea
    781.6×
  99. 99OsornoLos Lagos Region, Chile
    781.6×
  100. 99HualquiBiobio, Chile
    781.6×
  101. 101BensalemPennsylvania, United States
    781.6×
  102. 102Hwaseong-siGyeonggi-do, South Korea
    771.6×
  103. 102Puerto VarasLos Lagos Region, Chile
    771.6×
  104. 104Lop BuriLopburi, Thailand
    771.5×
  105. 105San Francisco De BorjaLima region, Peru
    771.5×
  106. 106QuinteroValparaiso, Chile
    771.5×
  107. 106AntofagastaAntofagasta, Chile
    771.5×
  108. 108MaputoMaputo City, Mozambique
    761.5×
  109. 109Kampalalow-cost sensorsCentral Region, Uganda
    761.5×
  110. 109ChocopeLa Libertad, Peru
    761.5×
  111. 111SarajevoFederation of B&H, Bosnia and Herzegovina
    761.5×
  112. 112SamaAsturias, Spain
    761.5×
  113. 112Heroica MatamorosTamaulipas, Mexico
    761.5×
  114. 114Ganghwa-gunIncheon, South Korea
    761.5×
  115. 114Ansan-siGyeonggi-do, South Korea
    761.5×
  116. 116Gimpo-siGyeonggi-do, South Korea
    751.5×
  117. 117IksanJeollabuk-do, South Korea
    751.5×
  118. 118YeongjuGyeongsangbuk-do, South Korea
    751.5×
  119. 118ShakopeeMinnesota, United States
    751.5×
  120. 120CheonanChungcheongnam-do, South Korea
    751.5×
  121. 120CopiapóAtacama, Chile
    751.5×
  122. 122YŏnmuChungcheongnam-do, South Korea
    741.4×
  123. 123SalorTashkent Region, Uzbekistan
    741.4×
  124. 124AndongGyeongsangbuk-do, South Korea
    741.4×
  125. 124SaijōEhime, Japan
    741.4×
  126. 126TalaganteSantiago Metropolitan, Chile
    741.4×
  127. 126AricaArica y Parinacota Region, Chile
    741.4×
  128. 128PyeongtaekGyeonggi-do, South Korea
    741.4×
  129. 129NamerikawaToyama, Japan
    731.4×
  130. 129GwangmyeongGyeonggi-do, South Korea
    731.4×
  131. 131Icheon-siGyeonggi-do, South Korea
    731.4×
  132. 131NiihamaEhime, Japan
    731.4×
  133. 131KoprivnicaKoprivnica-Križevci, Croatia
    731.4×
  134. 131ShikokuchūōEhime, Japan
    731.4×
  135. 135PubalGyeonggi-do, South Korea
    731.4×
  136. 135ŻabbarĦaż-Żabbar, Malta
    731.4×
  137. 135HualpénBiobio, Chile
    731.4×
  138. 138Goyang-siGyeonggi-do, South Korea
    731.4×
  139. 138KoesanNorth Chungcheong, South Korea
    731.4×
  140. 138Chinch'ŏnNorth Chungcheong, South Korea
    731.4×
  141. 138AlessandriaPiedmont, Italy
    731.4×
  142. 142PohangGyeongsangbuk-do, South Korea
    731.4×
  143. 143PrešovPrešov Region, Slovakia
    721.4×
  144. 144PhetchaburiPhetchaburi, Thailand
    721.4×
  145. 144MungyeongGyeongsangbuk-do, South Korea
    721.4×
  146. 144KinzanChungcheongnam-do, South Korea
    721.4×
  147. 144Koch'angJeollabuk-do, South Korea
    721.4×
  148. 144Los ÁngelesBiobio, Chile
    721.4×
  149. 144Live OakTexas, United States
    721.4×
  150. 150SeoulSeoul, South Korea
    721.4×
  151. 151ConcónValparaiso, Chile
    721.4×
  152. 152YecheonGyeongsangbuk-do, South Korea
    721.3×
  153. 153Nakhon NayokNakhon Nayok, Thailand
    711.3×
  154. 153JeongeupJeollabuk-do, South Korea
    711.3×
  155. 155HwadoGyeonggi-do, South Korea
    711.3×
  156. 155Duque de CaxiasRio de Janeiro, Brazil
    711.3×
  157. 155RabinalBaja Verapaz, Guatemala
    711.3×
  158. 158DushanbeDushanbe, Tajikistan
    711.3×
  159. 158YeongdongNorth Chungcheong, South Korea
    711.3×
  160. 158Donghae CityGangwon-do, South Korea
    711.3×
  161. 161DamyangJeollanam-do, South Korea
    711.3×
  162. 161Abujalow-cost sensorsFCT, Nigeria
    711.3×
  163. 163SeosanChungcheongnam-do, South Korea
    711.3×
  164. 163Bucheon-siGyeonggi-do, South Korea
    711.3×
  165. 163Anyang-siGyeonggi-do, South Korea
    711.3×
  166. 163Kodamachō-kodamaminamiSaitama, Japan
    711.3×
  167. 163KōriyamaFukushima, Japan
    711.3×
  168. 163Guatemala CityGuatemala, Guatemala
    711.3×
  169. 169GumiGyeongsangbuk-do, South Korea
    711.3×
  170. 169JōetsuNiigata, Japan
    711.3×
  171. 171CoquimboCoquimbo Region, Chile
    701.3×
  172. 172VillarricaAraucania, Chile
    701.3×
  173. 173KimjeJeollabuk-do, South Korea
    701.3×
  174. 173JungpyongNorth Chungcheong, South Korea
    701.3×
  175. 173SakataYamagata, Japan
    701.3×
  176. 176HavířovMoravian-Silesian Region, Czechia
    701.3×
  177. 177SaraburiSaraburi, Thailand
    691.3×
  178. 177WŏnjuGangwon-do, South Korea
    691.3×
  179. 177SuwonGyeonggi-do, South Korea
    691.3×
  180. 177Guri-siGyeonggi-do, South Korea
    691.3×
  181. 177HimimachiToyama, Japan
    691.3×
  182. 182SokchoGangwon-do, South Korea
    691.3×
  183. 182KureHiroshima, Japan
    691.3×
  184. 182León de los AldamaGuanajuato, Mexico
    691.3×
  185. 182Arroyo GrandeCalifornia, United States
    691.3×
  186. 186NonsanChungcheongnam-do, South Korea
    691.3×
  187. 186Cheongju-siNorth Chungcheong, South Korea
    691.3×
  188. 186Viña del MarValparaiso, Chile
    691.3×
  189. 186San ClementeIca, Peru
    691.3×
  190. 190RanongRanong province, Thailand
    691.2×
  191. 190TakasakiGunma, Japan
    691.2×
  192. 190SocorroTexas, United States
    691.2×
  193. 193GyōdaSaitama, Japan
    691.2×
  194. 193TemucoAraucania, Chile
    691.2×
  195. 195PoznańGreater Poland, Poland
    691.2×
  196. 195ChimboteAncash, Peru
    691.2×
  197. 197TomiokaGunma, Japan
    681.2×
  198. 197KiryūGunma, Japan
    681.2×
  199. 199Si Maha PhotPrachin Buri, Thailand
    681.2×
  200. 199Hat YaiSongkhla, Thailand
    681.2×

Top 200 of 2,324 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 29, 2024, smogrank.com/history/2024-04-29 (accessed 3 Oct 2026).

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