SmogRank / History / March 28, 2024

Most polluted cities on March 28, 2024

2,210 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 136.0 µg/m³. Each city's own local calendar day.

← N'Djamena 136.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for March 28, 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
    2119.1×
  2. 2CairoCairo, Egypt
    1856.9×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    1816.6×
  4. 4Mae SotTak, Thailand
    1766.1×
  5. 5Mae SaiChiang Rai, Thailand
    1745.9×
  6. 6Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1695.4×
  7. 7BeijingBeijing, China
    1675.2×
  8. 8TolucaMéxico, Mexico
    1634.9×
  9. 9JakartaJakarta, Indonesia
    1614.7×
  10. 10Chiang MaiChiang Mai, Thailand
    1614.7×
  11. 11Lahorelow-cost sensorsPunjab, Pakistan
    1574.3×
  12. 12LamphunLamphun, Thailand
    1574.3×
  13. 13NanNan, Thailand
    1554.1×
  14. 14PhayaoPhayao, Thailand
    1554.1×
  15. 15DelhiDelhi, India
    1544.0×
  16. 16San Francisco TlalcilalcalpanMéxico, Mexico
    1533.9×
  17. 17Ubon RatchathaniUbon Ratchathani, Thailand
    1523.8×
  18. 18KigaliKigali, Rwanda
    1523.8×
  19. 19Chiang RaiChiang Rai, Thailand
    1513.7×
  20. 20MukdahanMukdahan, Thailand
    1513.7×
  21. 21IlindenIlinden, North Macedonia
    1473.6×
  22. 22Kathmandulow-cost sensorsBagmati Province, Nepal
    1443.5×
  23. 23UttaraditUttaradit, Thailand
    1433.5×
  24. 24Si Sa KetSi Sa Ket, Thailand
    1393.4×
  25. 25DushanbeDushanbe, Tajikistan
    1393.4×
  26. 26KolkataWest Bengal, India
    1333.2×
  27. 27LampangLampang, Thailand
    1333.2×
  28. 28PhraePhrae, Thailand
    1313.2×
  29. 29Chai NatChai Nat, Thailand
    1313.2×
  30. 30Vientianelow-cost sensorsVientiane Prefecture, Laos
    1313.2×
  31. 31YeojuGyeonggi-do, South Korea
    1313.2×
  32. 32Lop BuriLopburi, Thailand
    1283.1×
  33. 33ShenyangLiaoning, China
    1273.1×
  34. 34San Pawl il-BaħarSaint Paul’s Bay, Malta
    1253.0×
  35. 35HanoiHanoi, Vietnam
    1243.0×
  36. 36KalasinKalasin, Thailand
    1222.9×
  37. 37MiskolcBorsod-Abaúj-Zemplén, Hungary
    1212.9×
  38. 38JeddahMecca Region, Saudi Arabia
    1202.9×
  39. 39SukhothaiSukhothai, Thailand
    1202.9×
  40. 39Amnat CharoenAmnat Charoen, Thailand
    1202.9×
  41. 41Kamphaeng PhetKamphaeng Phet, Thailand
    1192.8×
  42. 42YangonYangon, Myanmar
    1162.8×
  43. 42YasothonYasothon, Thailand
    1162.8×
  44. 44CholulaPuebla, Mexico
    1132.7×
  45. 45ShanghaiShanghai, China
    1112.6×
  46. 46Sing BuriSing Buri, Thailand
    1102.6×
  47. 47HyderabadTelangana, India
    1102.6×
  48. 48SurinSurin, Thailand
    1072.5×
  49. 49Puerto AysénAysén, Chile
    1072.5×
  50. 50Nakhon SawanNakhon Sawan, Thailand
    1072.5×
  51. 51Roi EtRoi Et, Thailand
    1052.5×
  52. 52Khon KaenKhon Kaen, Thailand
    1032.4×
  53. 53PhetchabunPhetchabun, Thailand
    1022.4×
  54. 54KanchanaburiKanchanaburi, Thailand
    1012.4×
  55. 55Islamabadlow-cost sensorsIslamabad, Pakistan
    1012.4×
  56. 55San CarlosÑuble, Chile
    1012.4×
  57. 57Si Maha PhotPrachin Buri, Thailand
    1002.3×
  58. 58HwadoGyeonggi-do, South Korea
    992.3×
  59. 59GapyeongGyeonggi-do, South Korea
    982.3×
  60. 59CuernavacaMorelos, Mexico
    982.3×
  61. 61Suphan BuriSuphan Buri, Thailand
    972.2×
  62. 62PhichitPhichit, Thailand
    962.2×
  63. 63Santa Cruz de la PalmaCanary Islands, Spain
    962.2×
  64. 64PubalGyeonggi-do, South Korea
    952.2×
  65. 64NacimientoBiobio, Chile
    952.2×
  66. 66ChillánÑuble, Chile
    942.2×
  67. 67DziałdowoWarmia-Masuria, Poland
    942.1×
  68. 67Udon ThaniUdon Thani, Thailand
    942.1×
  69. 69Nakhon RatchasimaNakhon Ratchasima, Thailand
    932.1×
  70. 70BaghdadBaghdad, Iraq
    932.1×
  71. 71Novi PazarCentral Serbia, Serbia
    932.1×
  72. 72CuricóMaule Region, Chile
    912.0×
  73. 73GuangzhouGuangdong, China
    912.0×
  74. 73Yangp'yŏngGyeonggi-do, South Korea
    912.0×
  75. 75ŻabbarĦaż-Żabbar, Malta
    912.0×
  76. 76GwangjuGyeonggi-do, South Korea
    902.0×
  77. 77Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    902.0×
  78. 78CoyhaiqueAysén, Chile
    902.0×
  79. 79Nong Bua LamphuNong Bua Lamphu, Thailand
    892.0×
  80. 80SaraburiSaraburi, Thailand
    892.0×
  81. 81MumbaiMaharashtra, India
    881.9×
  82. 81MostaIl-Mosta, Malta
    881.9×
  83. 81Puerto MonttLos Lagos Region, Chile
    881.9×
  84. 84Sakon NakhonSakon Nakhon, Thailand
    871.9×
  85. 85WŏnjuGangwon-do, South Korea
    871.9×
  86. 85PalmaBalearic Islands, Spain
    871.9×
  87. 87Los ÁngelesBiobio, Chile
    861.9×
  88. 87CauquenesMaule Region, Chile
    861.9×
  89. 89ZhushanTaiwan, Taiwan
    861.9×
  90. 90HualpénBiobio, Chile
    861.9×
  91. 91TratTrat, Thailand
    861.8×
  92. 91CelayaGuanajuato, Mexico
    861.8×
  93. 93Chinch'ŏnNorth Chungcheong, South Korea
    851.8×
  94. 93Puente AltoSantiago Metropolitan, Chile
    851.8×
  95. 95Hongch’ŏnGangwon-do, South Korea
    851.8×
  96. 96ColomboWestern Province, Sri Lanka
    851.8×
  97. 96Puerto VarasLos Lagos Region, Chile
    851.8×
  98. 96Kansas CityKansas, United States
    851.8×
  99. 99TalaganteSantiago Metropolitan, Chile
    851.8×
  100. 100YuanlinTaiwan, Taiwan
    841.8×
  101. 100ToméBiobio, Chile
    841.8×
  102. 102TalcaMaule Region, Chile
    841.8×
  103. 103TetovoTetovo, North Macedonia
    841.8×
  104. 103ChaiyaphumChaiyaphum, Thailand
    841.8×
  105. 105Buri RamBuriram, Thailand
    841.8×
  106. 106JinchengFukien, Taiwan
    831.8×
  107. 106Chiayi CityTaiwan, Taiwan
    831.8×
  108. 108DouliuTaiwan, Taiwan
    831.7×
  109. 109SantiagoSantiago Metropolitan, Chile
    831.7×
  110. 110Prachin BuriPrachin Buri, Thailand
    821.7×
  111. 111Victoria de DurangoDurango, Mexico
    821.7×
  112. 112TaichungTaiwan, Taiwan
    811.7×
  113. 113ChennaiTamil Nadu, India
    811.7×
  114. 113HwacheonGangwon-do, South Korea
    811.7×
  115. 113HualquiBiobio, Chile
    811.7×
  116. 113León de los AldamaGuanajuato, Mexico
    811.7×
  117. 117Santa Anita - Los FicusLima region, Peru
    811.7×
  118. 117Khlong Sam WaBangkok, Thailand
    811.7×
  119. 119Bang NaBangkok, Thailand
    801.6×
  120. 119ChanghuaTaiwan, Taiwan
    801.6×
  121. 119BelmopanCayo District, Belize
    801.6×
  122. 122Ganghwa-gunIncheon, South Korea
    801.6×
  123. 123RatchaburiRatchaburi, Thailand
    801.6×
  124. 123Pachuca de SotoHidalgo, Mexico
    801.6×
  125. 125CoronelBiobio, Chile
    801.6×
  126. 126OsornoLos Lagos Region, Chile
    791.6×
  127. 127Khlong LuangPathum Thani, Thailand
    791.6×
  128. 128RancaguaO'Higgins Region, Chile
    781.6×
  129. 129SeonghwanChungcheongnam-do, South Korea
    781.6×
  130. 130BeigangTaiwan, Taiwan
    781.6×
  131. 131ErlinTaiwan, Taiwan
    781.6×
  132. 132AthensAttica, Greece
    771.6×
  133. 133NantouTaiwan, Taiwan
    771.5×
  134. 133Tepeji del Río de OcampoHidalgo, Mexico
    771.5×
  135. 135ThessaloníkiCentral Macedonia, Greece
    771.5×
  136. 135Nakhon NayokNakhon Nayok, Thailand
    771.5×
  137. 135Hwaseong-siGyeonggi-do, South Korea
    771.5×
  138. 138RabinalBaja Verapaz, Guatemala
    771.5×
  139. 138QuinteroValparaiso, Chile
    771.5×
  140. 140YongkangTaiwan, Taiwan
    771.5×
  141. 140CheorwonGangwon-do, South Korea
    771.5×
  142. 142ŻyrardówMazovia, Poland
    761.5×
  143. 142AranyaprathetSa Kaeo, Thailand
    761.5×
  144. 142RengoO'Higgins Region, Chile
    761.5×
  145. 142Saphan SungBangkok, Thailand
    761.5×
  146. 146Bang Khun ThianBangkok, Thailand
    761.5×
  147. 146CheonanChungcheongnam-do, South Korea
    761.5×
  148. 148PirotCentral Serbia, Serbia
    761.5×
  149. 148XinyingTaiwan, Taiwan
    761.5×
  150. 148PuliTaiwan, Taiwan
    761.5×
  151. 151AsprópyrgosAttica, Greece
    761.5×
  152. 151PyeongtaekGyeonggi-do, South Korea
    761.5×
  153. 153Icheon-siGyeonggi-do, South Korea
    761.5×
  154. 154YeongjuGyeongsangbuk-do, South Korea
    751.5×
  155. 155AntananarivoAnalamanga, Madagascar
    751.5×
  156. 155ZhudongTaiwan, Taiwan
    751.5×
  157. 155OlatheKansas, United States
    751.5×
  158. 158PueblaPuebla, Mexico
    751.5×
  159. 159Nong KhaemBangkok, Thailand
    751.5×
  160. 159WłocławekKujawsko-Pomorskie, Poland
    751.5×
  161. 161SuwonGyeonggi-do, South Korea
    741.4×
  162. 161ZgierzŁódź Voivodeship, Poland
    741.4×
  163. 163Guatemala CityGuatemala, Guatemala
    741.4×
  164. 164TaibaoTaiwan, Taiwan
    741.4×
  165. 164IncheonIncheon, South Korea
    741.4×
  166. 164QuilpuéValparaiso, Chile
    741.4×
  167. 164Khan Na YaoBangkok, Thailand
    741.4×
  168. 168ErlunTaiwan, Taiwan
    741.4×
  169. 169PátraWest Greece, Greece
    741.4×
  170. 170ConcepciónBiobio, Chile
    731.4×
  171. 171Bang KapiBangkok, Thailand
    731.4×
  172. 171ConcónValparaiso, Chile
    731.4×
  173. 173BuziTaiwan, Taiwan
    731.4×
  174. 174Uijeongbu-siGyeonggi-do, South Korea
    731.4×
  175. 175OlsztynWarmia-Masuria, Poland
    731.4×
  176. 175TainanTaiwan, Taiwan
    731.4×
  177. 175TalcahuanoBiobio, Chile
    731.4×
  178. 178Karachilow-cost sensorsSindh, Pakistan
    721.4×
  179. 179Nong ChokBangkok, Thailand
    721.4×
  180. 179ShulinTaipei, Taiwan
    721.4×
  181. 181PruszkówMazovia, Poland
    721.4×
  182. 181Phra PradaengSamut Prakan, Thailand
    721.4×
  183. 181OsanGyeonggi-do, South Korea
    721.4×
  184. 184Mueang NonthaburiNonthaburi, Thailand
    721.3×
  185. 184Cheongju-siNorth Chungcheong, South Korea
    721.3×
  186. 184Sai MaiBangkok, Thailand
    721.3×
  187. 187PhuketPhuket, Thailand
    711.3×
  188. 187Ban ChangRayong, Thailand
    711.3×
  189. 187WaegwanGyeongsangbuk-do, South Korea
    711.3×
  190. 187Goyang-siGyeonggi-do, South Korea
    711.3×
  191. 187Gimpo-siGyeonggi-do, South Korea
    711.3×
  192. 187ChuncheonGangwon-do, South Korea
    711.3×
  193. 187KutnoŁódź Voivodeship, Poland
    711.3×
  194. 187GdyniaPomerania, Poland
    711.3×
  195. 195XizhouTaiwan, Taiwan
    711.3×
  196. 195TehuacánPuebla, Mexico
    711.3×
  197. 195TemucoAraucania, Chile
    711.3×
  198. 195San Pedro de la PazBiobio, Chile
    711.3×
  199. 199Addis AbabaAddis Ababa, Ethiopia
    711.3×
  200. 199ChanthaburiChanthaburi, Thailand
    711.3×

Top 200 of 2,210 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, March 28, 2024, smogrank.com/history/2024-03-28 (accessed 3 Oct 2026).

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