SmogRank / History / March 25, 2024

Most polluted cities on March 25, 2024

1,731 cities ranked by their average PM2.5 over the day; the worst was Delhi, India, at 217.0 µg/m³. Each city's own local calendar day.

← Delhi 217.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for March 25, 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. 1DelhiDelhi, India
    29214.5×
  2. 2N'DjamenaN’Djaména, Chad
    1907.4×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    1766.1×
  4. 4Lahorelow-cost sensorsPunjab, Pakistan
    1675.2×
  5. 5BeijingBeijing, China
    1634.9×
  6. 6Mae SotTak, Thailand
    1624.7×
  7. 7Vientianelow-cost sensorsVientiane Prefecture, Laos
    1604.6×
  8. 8MukdahanMukdahan, Thailand
    1604.6×
  9. 9AlgiersAlgiers, Algeria
    1564.2×
  10. 10PhayaoPhayao, Thailand
    1554.1×
  11. 11Ubon RatchathaniUbon Ratchathani, Thailand
    1554.1×
  12. 12Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1554.1×
  13. 13Kathmandulow-cost sensorsBagmati Province, Nepal
    1554.0×
  14. 14SukhothaiSukhothai, Thailand
    1544.0×
  15. 15LamphunLamphun, Thailand
    1544.0×
  16. 16Chiang MaiChiang Mai, Thailand
    1513.7×
  17. 17LampangLampang, Thailand
    1493.7×
  18. 18Ciudad JuárezChihuahua, Mexico
    1493.7×
  19. 19NanNan, Thailand
    1483.6×
  20. 20Amnat CharoenAmnat Charoen, Thailand
    1473.6×
  21. 21YasothonYasothon, Thailand
    1463.6×
  22. 22ShenyangLiaoning, China
    1413.5×
  23. 23KalasinKalasin, Thailand
    1413.4×
  24. 24DziałdowoWarmia-Masuria, Poland
    1403.4×
  25. 25Mae SaiChiang Rai, Thailand
    1383.4×
  26. 26Roi EtRoi Et, Thailand
    1273.1×
  27. 27KanchanaburiKanchanaburi, Thailand
    1263.0×
  28. 28TolucaMéxico, Mexico
    1253.0×
  29. 29PhraePhrae, Thailand
    1222.9×
  30. 30UttaraditUttaradit, Thailand
    1212.9×
  31. 31Si Sa KetSi Sa Ket, Thailand
    1202.9×
  32. 32YangonYangon, Myanmar
    1202.9×
  33. 33Sakon NakhonSakon Nakhon, Thailand
    1192.9×
  34. 34Chai NatChai Nat, Thailand
    1172.8×
  35. 35Sing BuriSing Buri, Thailand
    1152.7×
  36. 35PhichitPhichit, Thailand
    1152.7×
  37. 37HyderabadTelangana, India
    1132.7×
  38. 38KolkataWest Bengal, India
    1122.7×
  39. 39Chiang RaiChiang Rai, Thailand
    1122.7×
  40. 40KigaliKigali, Rwanda
    1102.6×
  41. 41Kamphaeng PhetKamphaeng Phet, Thailand
    1102.6×
  42. 42Lop BuriLopburi, Thailand
    1082.6×
  43. 43Nakhon RatchasimaNakhon Ratchasima, Thailand
    1082.6×
  44. 43CoyhaiqueAysén, Chile
    1082.6×
  45. 45Udon ThaniUdon Thani, Thailand
    1082.5×
  46. 46Nakhon SawanNakhon Sawan, Thailand
    1032.4×
  47. 47Khon KaenKhon Kaen, Thailand
    1022.4×
  48. 48ValjevoCentral Serbia, Serbia
    1012.4×
  49. 49SarajevoFederation of B&H, Bosnia and Herzegovina
    982.3×
  50. 50Si Maha PhotPrachin Buri, Thailand
    982.3×
  51. 51WłocławekKujawsko-Pomorskie, Poland
    982.3×
  52. 52MumbaiMaharashtra, India
    962.2×
  53. 53LęborkPomerania, Poland
    952.2×
  54. 54HanoiHanoi, Vietnam
    952.2×
  55. 55ChaiyaphumChaiyaphum, Thailand
    942.2×
  56. 56Prachin BuriPrachin Buri, Thailand
    932.1×
  57. 57Addis AbabaAddis Ababa, Ethiopia
    912.0×
  58. 58SurinSurin, Thailand
    912.0×
  59. 58RabinalBaja Verapaz, Guatemala
    912.0×
  60. 60TocopillaAntofagasta, Chile
    902.0×
  61. 61Guatemala CityGuatemala, Guatemala
    902.0×
  62. 62CairoCairo, Egypt
    902.0×
  63. 63Nakhon NayokNakhon Nayok, Thailand
    902.0×
  64. 63Accralow-cost sensorsGreater Accra, Ghana
    902.0×
  65. 63ZgierzŁódź Voivodeship, Poland
    902.0×
  66. 66Karachilow-cost sensorsSindh, Pakistan
    892.0×
  67. 67Novi PazarCentral Serbia, Serbia
    892.0×
  68. 68Islamabadlow-cost sensorsIslamabad, Pakistan
    892.0×
  69. 69LoeiLoei, Thailand
    881.9×
  70. 70Puerto AysénAysén, Chile
    881.9×
  71. 71SaraburiSaraburi, Thailand
    881.9×
  72. 72ColomboWestern Province, Sri Lanka
    871.9×
  73. 73Khlong Sam WaBangkok, Thailand
    871.9×
  74. 74LazarevacCentral Serbia, Serbia
    871.9×
  75. 74RatchaburiRatchaburi, Thailand
    871.9×
  76. 76PhetchabunPhetchabun, Thailand
    861.9×
  77. 77AshgabatAshgabat, Turkmenistan
    861.9×
  78. 78Nong Bua LamphuNong Bua Lamphu, Thailand
    861.9×
  79. 79ManamaManama, Bahrain
    861.8×
  80. 80Banja LukaSrpska, Bosnia and Herzegovina
    851.8×
  81. 81TratTrat, Thailand
    851.8×
  82. 81Khlong LuangPathum Thani, Thailand
    851.8×
  83. 83BytówPomerania, Poland
    841.8×
  84. 84PančevoVojvodina, Serbia
    841.8×
  85. 85ZemunCentral Serbia, Serbia
    831.7×
  86. 86PhuketPhuket, Thailand
    831.7×
  87. 87PirotCentral Serbia, Serbia
    821.7×
  88. 88Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    821.7×
  89. 88KościerzynaPomerania, Poland
    821.7×
  90. 90Skarżysko-KamiennaŚwiętokrzyskie, Poland
    811.7×
  91. 91Nong KhaemBangkok, Thailand
    811.7×
  92. 92Buri RamBuriram, Thailand
    811.7×
  93. 93SmederevoCentral Serbia, Serbia
    801.6×
  94. 93ChikuseiIbaraki, Japan
    801.6×
  95. 95Saphan SungBangkok, Thailand
    791.6×
  96. 96OtwockMazovia, Poland
    791.6×
  97. 96Suphan BuriSuphan Buri, Thailand
    791.6×
  98. 96HualpénBiobio, Chile
    791.6×
  99. 99Bang KapiBangkok, Thailand
    791.6×
  100. 99GuangzhouGuangdong, China
    791.6×
  101. 99Sai MaiBangkok, Thailand
    791.6×
  102. 102BangkokBangkok, Thailand
    791.6×
  103. 103GrajewoPodlasie, Poland
    781.6×
  104. 103Nakhon PathomNakhon Pathom, Thailand
    781.6×
  105. 105Mueang NonthaburiNonthaburi, Thailand
    781.6×
  106. 105CelayaGuanajuato, Mexico
    781.6×
  107. 107Khan Na YaoBangkok, Thailand
    781.6×
  108. 108Viña del MarValparaiso, Chile
    771.5×
  109. 108OsornoLos Lagos Region, Chile
    771.5×
  110. 110JakartaJakarta, Indonesia
    771.5×
  111. 111Wan ChaiWan Chai, Hong Kong
    771.5×
  112. 112PruszkówMazovia, Poland
    761.5×
  113. 113PhetchaburiPhetchaburi, Thailand
    761.5×
  114. 114BaghdadBaghdad, Iraq
    761.5×
  115. 114NišCentral Serbia, Serbia
    761.5×
  116. 114NodaChiba, Japan
    761.5×
  117. 117ObrenovacCentral Serbia, Serbia
    761.5×
  118. 117AranyaprathetSa Kaeo, Thailand
    761.5×
  119. 117La UniónLos Ríos Region, Chile
    761.5×
  120. 120Phra PradaengSamut Prakan, Thailand
    751.5×
  121. 120IshiokaIbaraki, Japan
    751.5×
  122. 122SiedlceMazovia, Poland
    751.5×
  123. 122ShulinTaipei, Taiwan
    751.5×
  124. 124XizhiTaipei, Taiwan
    751.5×
  125. 124KutnoŁódź Voivodeship, Poland
    751.5×
  126. 124Puente AltoSantiago Metropolitan, Chile
    751.5×
  127. 127Şabāḩ as SālimMubārak al Kabīr, Kuwait
    751.5×
  128. 128Surat ThaniSurat Thani, Thailand
    741.4×
  129. 128SuzakaNagano, Japan
    741.4×
  130. 130AugustówPodlasie, Poland
    741.4×
  131. 131LegionowoMazovia, Poland
    741.4×
  132. 132ChanthaburiChanthaburi, Thailand
    741.4×
  133. 133KościanGreater Poland, Poland
    731.4×
  134. 133New Taipei CityTaipei, Taiwan
    731.4×
  135. 135TokyoTokyo, Japan
    731.4×
  136. 136TaichungTaiwan, Taiwan
    731.4×
  137. 136QuillotaValparaiso, Chile
    731.4×
  138. 138KragujevacCentral Serbia, Serbia
    731.4×
  139. 138MiuraKanagawa, Japan
    731.4×
  140. 138SantiagoSantiago Metropolitan, Chile
    731.4×
  141. 138MissionTexas, United States
    731.4×
  142. 142KawaguchiSaitama, Japan
    721.4×
  143. 142GdyniaPomerania, Poland
    721.4×
  144. 144RanongRanong province, Thailand
    721.4×
  145. 144Hua HinPrachuap Khiri Khan, Thailand
    721.4×
  146. 144TaipeiTaiwan, Taiwan
    721.4×
  147. 144KamakuraKanagawa, Japan
    721.4×
  148. 148Corpus ChristiTexas, United States
    721.4×
  149. 149ŁukówLublin, Poland
    721.3×
  150. 150Ban Talat BuengChon Buri, Thailand
    711.3×
  151. 151Ban ChangRayong, Thailand
    711.3×
  152. 151AsakaSaitama, Japan
    711.3×
  153. 151NacimientoBiobio, Chile
    711.3×
  154. 154Puerto VarasLos Lagos Region, Chile
    711.3×
  155. 155YuanlinTaiwan, Taiwan
    711.3×
  156. 155ToméBiobio, Chile
    711.3×
  157. 157OyamaTochigi, Japan
    711.3×
  158. 157CoronelBiobio, Chile
    711.3×
  159. 157EdinburgTexas, United States
    711.3×
  160. 160SremčicaCentral Serbia, Serbia
    701.3×
  161. 160Ban Khlong PrawetBangkok, Thailand
    701.3×
  162. 160ZhushanTaiwan, Taiwan
    701.3×
  163. 160Tuen MunTuen Mun, Hong Kong
    701.3×
  164. 160QuinteroValparaiso, Chile
    701.3×
  165. 160HualquiBiobio, Chile
    701.3×
  166. 166Ulan BatorUlaanbaatar, Mongolia
    701.3×
  167. 167HsinchuTaiwan, Taiwan
    701.3×
  168. 168Samut PrakanSamut Prakan, Thailand
    701.3×
  169. 168SanoTochigi, Japan
    701.3×
  170. 168Lat KrabangBangkok, Thailand
    701.3×
  171. 171ChennaiTamil Nadu, India
    691.3×
  172. 171TaoyuanTaiwan, Taiwan
    691.3×
  173. 173SuwałkiPodlasie, Poland
    691.3×
  174. 173LublinLublin, Poland
    691.3×
  175. 173BelgradeCentral Serbia, Serbia
    691.3×
  176. 176AstanaAstana, Kazakhstan
    691.3×
  177. 176Samut SakhonSamut Sakhon, Thailand
    691.3×
  178. 176ToufenTaiwan, Taiwan
    691.3×
  179. 176ErlinTaiwan, Taiwan
    691.3×
  180. 176San CarlosÑuble, Chile
    691.3×
  181. 176Live OakTexas, United States
    691.3×
  182. 182NiskoSubcarpathia, Poland
    691.2×
  183. 182Silao de la VictoriaGuanajuato, Mexico
    691.2×
  184. 184PułtuskMazovia, Poland
    691.2×
  185. 185EłkWarmia-Masuria, Poland
    691.2×
  186. 185Misato, SaitamaSaitama, Japan
    691.2×
  187. 187OlsztynWarmia-Masuria, Poland
    681.2×
  188. 187SatunSatun, Thailand
    681.2×
  189. 187Bang Bo DistrictSamut Prakan, Thailand
    681.2×
  190. 187Quezon Citylow-cost sensorsNational Capital Region, Philippines
    681.2×
  191. 187BelmopanCayo District, Belize
    681.2×
  192. 192RayongRayong, Thailand
    681.2×
  193. 192PuliTaiwan, Taiwan
    681.2×
  194. 192ElblągWarmia-Masuria, Poland
    681.2×
  195. 192Puerto MonttLos Lagos Region, Chile
    681.2×
  196. 196IgusaSaitama, Japan
    681.2×
  197. 196FujisawaKanagawa, Japan
    681.2×
  198. 196Laem ChabangChon Buri, Thailand
    681.2×
  199. 196MitoIbaraki, Japan
    681.2×
  200. 200BiałystokPodlasie, Poland
    681.2×

Top 200 of 1,731 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 25, 2024, smogrank.com/history/2024-03-25 (accessed 3 Oct 2026).

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