SmogRank / History / April 11, 2024

Most polluted cities on April 11, 2024

2,254 cities ranked by their average PM2.5 over the day; the worst was Coyhaique, Chile, at 181.5 µg/m³. Each city's own local calendar day.

Bad-air episodes during April 11, 2024. All episodes.

← Coyhaique 181.5 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for April 11, 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. 1CoyhaiqueAysén, Chile
    25612.1×
  2. 2Kathmandulow-cost sensorsBagmati Province, Nepal
    2048.6×
  3. 3CártamaAndalusia, Spain
    1978.1×
  4. 4N'DjamenaN’Djaména, Chad
    1877.1×
  5. 5BeijingBeijing, China
    1867.0×
  6. 6KolkataWest Bengal, India
    1856.9×
  7. 7MaspalomasCanary Islands, Spain
    1836.7×
  8. 8Granadilla de AbonaCanary Islands, Spain
    1796.3×
  9. 9Dhakalow-cost sensorsDhaka Division, Bangladesh
    1776.1×
  10. 10IngenioCanary Islands, Spain
    1685.3×
  11. 11La OrotavaCanary Islands, Spain
    1634.9×
  12. 12DelhiDelhi, India
    1624.8×
  13. 13UttaraditUttaradit, Thailand
    1624.7×
  14. 14Ubon RatchathaniUbon Ratchathani, Thailand
    1614.6×
  15. 15Lop BuriLopburi, Thailand
    1594.4×
  16. 16TemucoAraucania, Chile
    1594.4×
  17. 17Chai NatChai Nat, Thailand
    1544.0×
  18. 18Ciudad JuárezChihuahua, Mexico
    1544.0×
  19. 19Sing BuriSing Buri, Thailand
    1544.0×
  20. 20Nakhon NayokNakhon Nayok, Thailand
    1533.9×
  21. 21AgüimesCanary Islands, Spain
    1533.9×
  22. 22Khlong LuangPathum Thani, Thailand
    1533.8×
  23. 23NacimientoBiobio, Chile
    1523.8×
  24. 24Mueang NonthaburiNonthaburi, Thailand
    1523.8×
  25. 25Nakhon SawanNakhon Sawan, Thailand
    1523.8×
  26. 26NanNan, Thailand
    1513.7×
  27. 27SukhothaiSukhothai, Thailand
    1513.7×
  28. 28SurinSurin, Thailand
    1463.6×
  29. 29Ban Khlong PrawetBangkok, Thailand
    1463.6×
  30. 30MukdahanMukdahan, Thailand
    1443.5×
  31. 31Puerto MonttLos Lagos Region, Chile
    1403.4×
  32. 32Mae SaiChiang Rai, Thailand
    1383.4×
  33. 33Vientianelow-cost sensorsVientiane Prefecture, Laos
    1373.3×
  34. 34PhayaoPhayao, Thailand
    1363.3×
  35. 35Nakhon RatchasimaNakhon Ratchasima, Thailand
    1363.3×
  36. 36Roi EtRoi Et, Thailand
    1343.3×
  37. 37Si Sa KetSi Sa Ket, Thailand
    1333.2×
  38. 38KigaliKigali, Rwanda
    1323.2×
  39. 39ChillánÑuble, Chile
    1303.2×
  40. 40HanoiHanoi, Vietnam
    1303.1×
  41. 41Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1293.1×
  42. 42Amnat CharoenAmnat Charoen, Thailand
    1293.1×
  43. 42Los ÁngelesBiobio, Chile
    1293.1×
  44. 44ManamaManama, Bahrain
    1283.1×
  45. 45Chiang RaiChiang Rai, Thailand
    1273.1×
  46. 46RabinalBaja Verapaz, Guatemala
    1263.0×
  47. 47YasothonYasothon, Thailand
    1263.0×
  48. 48Guatemala CityGuatemala, Guatemala
    1243.0×
  49. 49ZhushanTaiwan, Taiwan
    1233.0×
  50. 50SaraburiSaraburi, Thailand
    1233.0×
  51. 51Santa Cruz de TenerifeCanary Islands, Spain
    1233.0×
  52. 52Si Maha PhotPrachin Buri, Thailand
    1222.9×
  53. 52PhraePhrae, Thailand
    1222.9×
  54. 54KanchanaburiKanchanaburi, Thailand
    1212.9×
  55. 55Buri RamBuriram, Thailand
    1202.9×
  56. 56Mae SotTak, Thailand
    1202.9×
  57. 56LampangLampang, Thailand
    1202.9×
  58. 58Kamphaeng PhetKamphaeng Phet, Thailand
    1192.9×
  59. 59Santa Anita - Los FicusLima region, Peru
    1182.8×
  60. 60ValdiviaLos Ríos Region, Chile
    1172.8×
  61. 61BangkokBangkok, Thailand
    1152.8×
  62. 62Abujalow-cost sensorsFCT, Nigeria
    1142.7×
  63. 63Khon KaenKhon Kaen, Thailand
    1142.7×
  64. 63DouliuTaiwan, Taiwan
    1142.7×
  65. 65Nong KhaemBangkok, Thailand
    1132.7×
  66. 66HualquiBiobio, Chile
    1122.7×
  67. 67PhichitPhichit, Thailand
    1102.6×
  68. 68ShenyangLiaoning, China
    1102.6×
  69. 69PuliTaiwan, Taiwan
    1102.6×
  70. 70Chiang MaiChiang Mai, Thailand
    1092.6×
  71. 71HualpénBiobio, Chile
    1092.6×
  72. 72Santa Cruz de la PalmaCanary Islands, Spain
    1092.6×
  73. 72San CarlosÑuble, Chile
    1092.6×
  74. 74RatchaburiRatchaburi, Thailand
    1082.6×
  75. 74CuranilahueBiobio, Chile
    1082.6×
  76. 76Chiayi CityTaiwan, Taiwan
    1072.5×
  77. 77NantouTaiwan, Taiwan
    1062.5×
  78. 78Bang KapiBangkok, Thailand
    1062.5×
  79. 79CandelariaCanary Islands, Spain
    1062.5×
  80. 80Suphan BuriSuphan Buri, Thailand
    1052.5×
  81. 81ChaiyaphumChaiyaphum, Thailand
    1042.5×
  82. 82YuanlinTaiwan, Taiwan
    1042.4×
  83. 83Villa Poeta José Gálvez BarrenecheaLima region, Peru
    1032.4×
  84. 84AranyaprathetSa Kaeo, Thailand
    1032.4×
  85. 85Puerto AysénAysén, Chile
    1022.4×
  86. 86Nakhon PathomNakhon Pathom, Thailand
    992.3×
  87. 87La UniónLos Ríos Region, Chile
    992.3×
  88. 88PhetchabunPhetchabun, Thailand
    992.3×
  89. 89Udon ThaniUdon Thani, Thailand
    972.3×
  90. 90XizhouTaiwan, Taiwan
    972.3×
  91. 90BellevueNebraska, United States
    972.3×
  92. 92Sakon NakhonSakon Nakhon, Thailand
    972.3×
  93. 92TalcahuanoBiobio, Chile
    972.3×
  94. 92Puerto VarasLos Lagos Region, Chile
    972.3×
  95. 95YangonYangon, Myanmar
    962.2×
  96. 95CoronelBiobio, Chile
    962.2×
  97. 97LamphunLamphun, Thailand
    962.2×
  98. 97HyderabadTelangana, India
    962.2×
  99. 97SalorTashkent Region, Uzbekistan
    962.2×
  100. 97BelmopanCayo District, Belize
    962.2×
  101. 101San IsidroCanary Islands, Spain
    952.2×
  102. 102GuangzhouGuangdong, China
    942.1×
  103. 103Phra PradaengSamut Prakan, Thailand
    932.1×
  104. 103Ulan BatorUlaanbaatar, Mongolia
    932.1×
  105. 105Bang Bo DistrictSamut Prakan, Thailand
    932.1×
  106. 105TaichungTaiwan, Taiwan
    932.1×
  107. 107Samut SakhonSamut Sakhon, Thailand
    922.1×
  108. 107YongkangTaiwan, Taiwan
    922.1×
  109. 107AronaCanary Islands, Spain
    922.1×
  110. 110CelayaGuanajuato, Mexico
    922.1×
  111. 111Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    922.1×
  112. 111LoeiLoei, Thailand
    922.1×
  113. 113BeigangTaiwan, Taiwan
    922.1×
  114. 114TaibaoTaiwan, Taiwan
    902.0×
  115. 114XinyingTaiwan, Taiwan
    902.0×
  116. 114ErlunTaiwan, Taiwan
    902.0×
  117. 114ErlinTaiwan, Taiwan
    902.0×
  118. 118SalamancaGuanajuato, Mexico
    902.0×
  119. 119YeojuGyeonggi-do, South Korea
    902.0×
  120. 120SeonghwanChungcheongnam-do, South Korea
    902.0×
  121. 121PubalGyeonggi-do, South Korea
    892.0×
  122. 122Puente AltoSantiago Metropolitan, Chile
    892.0×
  123. 123TainanTaiwan, Taiwan
    892.0×
  124. 123OsornoLos Lagos Region, Chile
    892.0×
  125. 125CairoCairo, Egypt
    881.9×
  126. 126Icheon-siGyeonggi-do, South Korea
    881.9×
  127. 127TangjinChungcheongnam-do, South Korea
    881.9×
  128. 128Nong Bua LamphuNong Bua Lamphu, Thailand
    881.9×
  129. 128RancaguaO'Higgins Region, Chile
    881.9×
  130. 130Samut PrakanSamut Prakan, Thailand
    871.9×
  131. 131Donghae CityGangwon-do, South Korea
    871.9×
  132. 131QuillotaValparaiso, Chile
    871.9×
  133. 133FengshanTakao, Taiwan
    861.9×
  134. 133Wan ChaiWan Chai, Hong Kong
    861.9×
  135. 135ChanghuaTaiwan, Taiwan
    861.9×
  136. 136SarajevoFederation of B&H, Bosnia and Herzegovina
    861.9×
  137. 137ShanghaiShanghai, China
    851.8×
  138. 138Lahorelow-cost sensorsPunjab, Pakistan
    851.8×
  139. 138Las Palmas de Gran CanariaCanary Islands, Spain
    851.8×
  140. 138SantiagoSantiago Metropolitan, Chile
    851.8×
  141. 138ConcónValparaiso, Chile
    851.8×
  142. 142KaohsiungTakao, Taiwan
    841.8×
  143. 142GangneungGangwon-do, South Korea
    841.8×
  144. 142CuricóMaule Region, Chile
    841.8×
  145. 145SokchoGangwon-do, South Korea
    831.8×
  146. 146ChennaiTamil Nadu, India
    831.8×
  147. 147PhetchaburiPhetchaburi, Thailand
    831.7×
  148. 147JakartaJakarta, Indonesia
    831.7×
  149. 149MumbaiMaharashtra, India
    831.7×
  150. 150WŏnjuGangwon-do, South Korea
    821.7×
  151. 151TeldeCanary Islands, Spain
    821.7×
  152. 152Karachilow-cost sensorsSindh, Pakistan
    821.7×
  153. 152ArucasCanary Islands, Spain
    821.7×
  154. 154Mong KokYau Tsim Mong District, Hong Kong
    821.7×
  155. 154Hongch’ŏnGangwon-do, South Korea
    821.7×
  156. 156ShulinTaipei, Taiwan
    821.7×
  157. 157JinchengFukien, Taiwan
    811.7×
  158. 157Chinch'ŏnNorth Chungcheong, South Korea
    811.7×
  159. 159HwadoGyeonggi-do, South Korea
    811.7×
  160. 160SanzhiTaipei, Taiwan
    811.7×
  161. 161QuinteroValparaiso, Chile
    801.7×
  162. 162YesanChungcheongnam-do, South Korea
    801.6×
  163. 163TratTrat, Thailand
    801.6×
  164. 164GimcheonGyeongsangbuk-do, South Korea
    801.6×
  165. 164Hwaseong-siGyeonggi-do, South Korea
    801.6×
  166. 166AshgabatAshgabat, Turkmenistan
    791.6×
  167. 166BuziTaiwan, Taiwan
    791.6×
  168. 166GunsanJeollabuk-do, South Korea
    791.6×
  169. 169ColomboWestern Province, Sri Lanka
    791.6×
  170. 169Tuen MunTuen Mun, Hong Kong
    791.6×
  171. 169León de los AldamaGuanajuato, Mexico
    791.6×
  172. 169San Pedro de la PazBiobio, Chile
    791.6×
  173. 173KoesanNorth Chungcheong, South Korea
    791.6×
  174. 174HsinchuTaiwan, Taiwan
    781.6×
  175. 174Yangp'yŏngGyeonggi-do, South Korea
    781.6×
  176. 174TocopillaAntofagasta, Chile
    781.6×
  177. 177OsanGyeonggi-do, South Korea
    781.6×
  178. 177Ganghwa-gunIncheon, South Korea
    781.6×
  179. 177Viña del MarValparaiso, Chile
    781.6×
  180. 177PortervilleCalifornia, United States
    781.6×
  181. 181IksanJeollabuk-do, South Korea
    781.6×
  182. 181CheorwonGangwon-do, South Korea
    781.6×
  183. 183YeongjuGyeongsangbuk-do, South Korea
    771.6×
  184. 183NonsanChungcheongnam-do, South Korea
    771.6×
  185. 183JungpyongNorth Chungcheong, South Korea
    771.6×
  186. 186TalcaMaule Region, Chile
    771.5×
  187. 187YeongdongNorth Chungcheong, South Korea
    771.5×
  188. 188TaipeiTaiwan, Taiwan
    771.5×
  189. 189ZhudongTaiwan, Taiwan
    771.5×
  190. 190Jastrzębie ZdrójSilesia, Poland
    761.5×
  191. 190IrapuatoGuanajuato, Mexico
    761.5×
  192. 192MiaoliTaiwan, Taiwan
    761.5×
  193. 192AsanChungcheongnam-do, South Korea
    761.5×
  194. 194ToufenTaiwan, Taiwan
    761.5×
  195. 194SangjuGyeongsangbuk-do, South Korea
    761.5×
  196. 194BuanJeollabuk-do, South Korea
    761.5×
  197. 194Goyang-siGyeonggi-do, South Korea
    761.5×
  198. 194RengoO'Higgins Region, Chile
    761.5×
  199. 194TaoyuanTaiwan, Taiwan
    761.5×
  200. 200Gimpo-siGyeonggi-do, South Korea
    751.5×

Top 200 of 2,254 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 11, 2024, smogrank.com/history/2024-04-11 (accessed 3 Oct 2026).

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