SmogRank / History / April 14, 2024

Most polluted cities on April 14, 2024

2,254 cities ranked by their average PM2.5 over the day; the worst was Huelva, Spain, at 452.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during April 14, 2024. All episodes.

← Huelva 452.0 µg/m³ 400 µg/m³15 WHO 24-hour guideline
Every city ranked for April 14, 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. 1HuelvaAndalusia, Spain
    500+30.1×
  2. 2N'DjamenaN’Djaména, Chad
    28814.2×
  3. 3CoyhaiqueAysén, Chile
    2048.6×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    2038.5×
  5. 5Kathmandulow-cost sensorsBagmati Province, Nepal
    1846.9×
  6. 6Ubon RatchathaniUbon Ratchathani, Thailand
    1806.4×
  7. 7MukdahanMukdahan, Thailand
    1655.0×
  8. 8KalasinKalasin, Thailand
    1644.9×
  9. 9Amnat CharoenAmnat Charoen, Thailand
    1614.7×
  10. 10KolkataWest Bengal, India
    1614.6×
  11. 11YasothonYasothon, Thailand
    1574.3×
  12. 12Vientianelow-cost sensorsVientiane Prefecture, Laos
    1574.3×
  13. 13UttaraditUttaradit, Thailand
    1533.9×
  14. 14NanNan, Thailand
    1513.7×
  15. 15Roi EtRoi Et, Thailand
    1483.6×
  16. 16BeijingBeijing, China
    1453.6×
  17. 17Lahorelow-cost sensorsPunjab, Pakistan
    1453.6×
  18. 18KanchanaburiKanchanaburi, Thailand
    1453.6×
  19. 18YangonYangon, Myanmar
    1453.6×
  20. 20Kamphaeng PhetKamphaeng Phet, Thailand
    1403.4×
  21. 21Udon ThaniUdon Thani, Thailand
    1373.3×
  22. 22PhraePhrae, Thailand
    1363.3×
  23. 23Sakon NakhonSakon Nakhon, Thailand
    1353.3×
  24. 23PhichitPhichit, Thailand
    1353.3×
  25. 25ChennaiTamil Nadu, India
    1353.3×
  26. 26Chiang MaiChiang Mai, Thailand
    1343.3×
  27. 26Puerto del RosarioCanary Islands, Spain
    1343.3×
  28. 28SukhothaiSukhothai, Thailand
    1323.2×
  29. 29NacimientoBiobio, Chile
    1303.1×
  30. 30CoronelBiobio, Chile
    1293.1×
  31. 31Khon KaenKhon Kaen, Thailand
    1283.1×
  32. 32HualquiBiobio, Chile
    1273.1×
  33. 33Si Sa KetSi Sa Ket, Thailand
    1263.0×
  34. 34Nakhon RatchasimaNakhon Ratchasima, Thailand
    1263.0×
  35. 35CuranilahueBiobio, Chile
    1253.0×
  36. 36Mae SaiChiang Rai, Thailand
    1253.0×
  37. 37DelhiDelhi, India
    1233.0×
  38. 38Nong Bua LamphuNong Bua Lamphu, Thailand
    1233.0×
  39. 39LoeiLoei, Thailand
    1222.9×
  40. 40LampangLampang, Thailand
    1212.9×
  41. 41Nakhon SawanNakhon Sawan, Thailand
    1212.9×
  42. 42SurinSurin, Thailand
    1182.8×
  43. 43LamphunLamphun, Thailand
    1182.8×
  44. 44Puerto VarasLos Lagos Region, Chile
    1172.8×
  45. 45KigaliKigali, Rwanda
    1172.8×
  46. 46HanoiHanoi, Vietnam
    1172.8×
  47. 47Chai NatChai Nat, Thailand
    1162.8×
  48. 48ChaiyaphumChaiyaphum, Thailand
    1152.7×
  49. 49Si Maha PhotPrachin Buri, Thailand
    1152.7×
  50. 50Puerto MonttLos Lagos Region, Chile
    1132.7×
  51. 51PhayaoPhayao, Thailand
    1112.6×
  52. 52PhetchabunPhetchabun, Thailand
    1092.6×
  53. 53Los ÁngelesBiobio, Chile
    1092.6×
  54. 54Santa Anita - Los FicusLima region, Peru
    1072.5×
  55. 55OsornoLos Lagos Region, Chile
    1062.5×
  56. 56SalamancaGuanajuato, Mexico
    1062.5×
  57. 57RatchaburiRatchaburi, Thailand
    1032.4×
  58. 58Sing BuriSing Buri, Thailand
    1022.4×
  59. 59Puerto AysénAysén, Chile
    1012.4×
  60. 60Buri RamBuriram, Thailand
    1002.4×
  61. 61TemucoAraucania, Chile
    982.3×
  62. 62Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    982.3×
  63. 63HyderabadTelangana, India
    972.3×
  64. 64Karachilow-cost sensorsSindh, Pakistan
    972.2×
  65. 65BaghdadBaghdad, Iraq
    962.2×
  66. 66Mae SotTak, Thailand
    962.2×
  67. 67Khlong Sam WaBangkok, Thailand
    962.2×
  68. 68Chiang RaiChiang Rai, Thailand
    942.2×
  69. 69CairoCairo, Egypt
    942.1×
  70. 69Khlong LuangPathum Thani, Thailand
    942.1×
  71. 71AranyaprathetSa Kaeo, Thailand
    942.1×
  72. 72ShenyangLiaoning, China
    912.0×
  73. 73Nakhon NayokNakhon Nayok, Thailand
    902.0×
  74. 73ArrecifeCanary Islands, Spain
    902.0×
  75. 75Suphan BuriSuphan Buri, Thailand
    902.0×
  76. 76ShulinTaipei, Taiwan
    902.0×
  77. 76San CarlosÑuble, Chile
    902.0×
  78. 78PhetchaburiPhetchaburi, Thailand
    902.0×
  79. 79ErlinTaiwan, Taiwan
    902.0×
  80. 80TratTrat, Thailand
    902.0×
  81. 81YuanlinTaiwan, Taiwan
    892.0×
  82. 82TangjinChungcheongnam-do, South Korea
    892.0×
  83. 83TaoyuanTaiwan, Taiwan
    881.9×
  84. 84MonterreyNuevo León, Mexico
    881.9×
  85. 85Bang NaBangkok, Thailand
    881.9×
  86. 86Mueang NonthaburiNonthaburi, Thailand
    871.9×
  87. 87ChillánÑuble, Chile
    871.9×
  88. 88SatunSatun, Thailand
    861.9×
  89. 88Lop BuriLopburi, Thailand
    861.9×
  90. 90ZhudongTaiwan, Taiwan
    861.9×
  91. 91Puente AltoSantiago Metropolitan, Chile
    861.9×
  92. 92Islamabadlow-cost sensorsIslamabad, Pakistan
    861.9×
  93. 93Nong KhaemBangkok, Thailand
    861.8×
  94. 93Nakhon PathomNakhon Pathom, Thailand
    861.8×
  95. 93DaxiTaiwan, Taiwan
    861.8×
  96. 96BangkokBangkok, Thailand
    851.8×
  97. 97Ban Samae DamBangkok, Thailand
    851.8×
  98. 97RengoO'Higgins Region, Chile
    851.8×
  99. 99Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    851.8×
  100. 99ChiguayanteBiobio, Chile
    851.8×
  101. 101RancaguaO'Higgins Region, Chile
    851.8×
  102. 102ChanthaburiChanthaburi, Thailand
    841.8×
  103. 102Bang Khun ThianBangkok, Thailand
    841.8×
  104. 104Phra PradaengSamut Prakan, Thailand
    841.8×
  105. 105Bang Bo DistrictSamut Prakan, Thailand
    831.8×
  106. 105Santa Cruz de TenerifeCanary Islands, Spain
    831.8×
  107. 107PhuketPhuket, Thailand
    831.8×
  108. 108Icheon-siGyeonggi-do, South Korea
    831.8×
  109. 108Sai MaiBangkok, Thailand
    831.8×
  110. 110TaibaoTaiwan, Taiwan
    831.7×
  111. 110QuillotaValparaiso, Chile
    831.7×
  112. 112Hua HinPrachuap Khiri Khan, Thailand
    821.7×
  113. 113Bang KapiBangkok, Thailand
    821.7×
  114. 114HualpénBiobio, Chile
    821.7×
  115. 114CuricóMaule Region, Chile
    821.7×
  116. 116RanongRanong province, Thailand
    811.7×
  117. 116XizhiTaipei, Taiwan
    811.7×
  118. 116ErlunTaiwan, Taiwan
    811.7×
  119. 116YeojuGyeonggi-do, South Korea
    811.7×
  120. 116La OrotavaCanary Islands, Spain
    811.7×
  121. 116New Taipei CityTaipei, Taiwan
    811.7×
  122. 122SokchoGangwon-do, South Korea
    811.7×
  123. 123NeiliTaiwan, Taiwan
    811.7×
  124. 124NaplesCampania, Italy
    801.7×
  125. 124SantiagoSantiago Metropolitan, Chile
    801.7×
  126. 126ZhushanTaiwan, Taiwan
    801.7×
  127. 126ChanghuaTaiwan, Taiwan
    801.7×
  128. 128SeonghwanChungcheongnam-do, South Korea
    801.6×
  129. 128NonsanChungcheongnam-do, South Korea
    801.6×
  130. 130La UniónLos Ríos Region, Chile
    801.6×
  131. 131YesanChungcheongnam-do, South Korea
    801.6×
  132. 132Samut PrakanSamut Prakan, Thailand
    801.6×
  133. 133PuliTaiwan, Taiwan
    791.6×
  134. 134CauquenesMaule Region, Chile
    791.6×
  135. 135Hwaseong-siGyeonggi-do, South Korea
    791.6×
  136. 136Ban Khlong PrawetBangkok, Thailand
    781.6×
  137. 136Ban ChangRayong, Thailand
    781.6×
  138. 136TaipeiTaiwan, Taiwan
    781.6×
  139. 136SarajevoFederation of B&H, Bosnia and Herzegovina
    781.6×
  140. 136QuinteroValparaiso, Chile
    781.6×
  141. 136Santa CatarinaNuevo León, Mexico
    781.6×
  142. 142PattaniPattani, Thailand
    781.6×
  143. 142TaichungTaiwan, Taiwan
    781.6×
  144. 144Ansan-siGyeonggi-do, South Korea
    781.6×
  145. 145Hat YaiSongkhla, Thailand
    781.6×
  146. 145TalaganteSantiago Metropolitan, Chile
    781.6×
  147. 147GwangmyeongGyeonggi-do, South Korea
    771.6×
  148. 148BuziTaiwan, Taiwan
    771.5×
  149. 148Guri-siGyeonggi-do, South Korea
    771.5×
  150. 148Gimpo-siGyeonggi-do, South Korea
    771.5×
  151. 151HwadoGyeonggi-do, South Korea
    771.5×
  152. 152Ganghwa-gunIncheon, South Korea
    771.5×
  153. 152IncheonIncheon, South Korea
    771.5×
  154. 152MaspalomasCanary Islands, Spain
    771.5×
  155. 155SeoulSeoul, South Korea
    771.5×
  156. 155GangneungGangwon-do, South Korea
    771.5×
  157. 155KasaokaOkayama, Japan
    771.5×
  158. 155Granadilla de AbonaCanary Islands, Spain
    771.5×
  159. 159Donghae CityGangwon-do, South Korea
    771.5×
  160. 159CelayaGuanajuato, Mexico
    771.5×
  161. 161SangjuGyeongsangbuk-do, South Korea
    761.5×
  162. 162AsanChungcheongnam-do, South Korea
    761.5×
  163. 162TalcahuanoBiobio, Chile
    761.5×
  164. 164MiaoliTaiwan, Taiwan
    761.5×
  165. 165ZhubeiTaiwan, Taiwan
    761.5×
  166. 165Kan’onjichōKagawa, Japan
    761.5×
  167. 167Surat ThaniSurat Thani, Thailand
    761.5×
  168. 167JinchengFukien, Taiwan
    761.5×
  169. 167Ciudad Benito JuárezNuevo León, Mexico
    761.5×
  170. 170GetxoBasque Country, Spain
    751.5×
  171. 171ToufenTaiwan, Taiwan
    751.5×
  172. 171KeelungTaiwan, Taiwan
    751.5×
  173. 171PyeongtaekGyeonggi-do, South Korea
    751.5×
  174. 171Anyang-siGyeonggi-do, South Korea
    751.5×
  175. 171PubalGyeonggi-do, South Korea
    751.5×
  176. 171Falconara MarittimaThe Marches, Italy
    751.5×
  177. 177Samut SakhonSamut Sakhon, Thailand
    751.5×
  178. 177HsinchuTaiwan, Taiwan
    751.5×
  179. 177DamyangJeollanam-do, South Korea
    751.5×
  180. 177YŏnmuChungcheongnam-do, South Korea
    751.5×
  181. 177ToméBiobio, Chile
    751.5×
  182. 177Lat KrabangBangkok, Thailand
    751.5×
  183. 183AgüimesCanary Islands, Spain
    751.5×
  184. 183MantuaLombardy, Italy
    751.5×
  185. 185JeddahMecca Region, Saudi Arabia
    741.4×
  186. 185GunsanJeollabuk-do, South Korea
    741.4×
  187. 185Laem ChabangChon Buri, Thailand
    741.4×
  188. 188NarathiwatNarathiwat, Thailand
    741.4×
  189. 188BeigangTaiwan, Taiwan
    741.4×
  190. 188NantouTaiwan, Taiwan
    741.4×
  191. 188WŏnjuGangwon-do, South Korea
    741.4×
  192. 188Goyang-siGyeonggi-do, South Korea
    741.4×
  193. 188ConcepciónBiobio, Chile
    741.4×
  194. 194SuwonGyeonggi-do, South Korea
    741.4×
  195. 194IksanJeollabuk-do, South Korea
    741.4×
  196. 194ÖstersundJämtland, Sweden
    741.4×
  197. 197MilanLombardy, Italy
    741.4×
  198. 198JungpyongNorth Chungcheong, South Korea
    741.4×
  199. 199RayongRayong, Thailand
    741.4×
  200. 199HanamGyeonggi-do, South Korea
    741.4×

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 14, 2024, smogrank.com/history/2024-04-14 (accessed 3 Oct 2026).

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