SmogRank / History / March 15, 2025

Most polluted cities on March 15, 2025

2,603 cities ranked by their average PM2.5 over the day; the worst was Hassan, India, at 126.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during March 15, 2025. All episodes.

← Hassan 126.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for March 15, 2025, 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. 1HassanKarnataka, India
    2018.4×
  2. 2Mae SaiChiang Rai, Thailand
    1856.9×
  3. 3PurniaBihar, India
    1836.7×
  4. 4NavalpattuTamil Nadu, India
    1826.7×
  5. 5RairangpurOdisha, India
    1796.3×
  6. 6RourkelaOdisha, India
    1766.0×
  7. 7Kampalalow-cost sensorsCentral Region, Uganda
    1756.0×
  8. 7DurgapurWest Bengal, India
    1756.0×
  9. 9BaripādaOdisha, India
    1745.9×
  10. 10N'DjamenaN’Djaména, Chad
    1735.8×
  11. 11AngulOdisha, India
    1735.8×
  12. 12HājīpurBihar, India
    1715.6×
  13. 13BarbilOdisha, India
    1705.5×
  14. 14BhelaiChhattisgarh, India
    1675.3×
  15. 15Vientianelow-cost sensorsVientiane Prefecture, Laos
    1655.0×
  16. 16RānīganjWest Bengal, India
    1634.9×
  17. 17Kathmandulow-cost sensorsBagmati Province, Nepal
    1624.8×
  18. 18East Saint LouisIllinois, United States
    1614.7×
  19. 19Dubailow-cost sensorsDubai, United Arab Emirates
    1614.7×
  20. 20ĀsansolWest Bengal, India
    1614.7×
  21. 21PatnaBihar, India
    1604.6×
  22. 22SingrauliMadhya Pradesh, India
    1584.4×
  23. 23LemayMissouri, United States
    1584.4×
  24. 23MandideepMadhya Pradesh, India
    1584.4×
  25. 25SaharsaBihar, India
    1584.3×
  26. 26Granite CityIllinois, United States
    1584.3×
  27. 27Dhakalow-cost sensorsDhaka Division, Bangladesh
    1564.2×
  28. 28SasarāmBihar, India
    1554.1×
  29. 29ByasanagarOdisha, India
    1554.1×
  30. 30AjmerRajasthan, India
    1554.1×
  31. 31BelpaharOdisha, India
    1554.0×
  32. 32St. LouisMissouri, United States
    1544.0×
  33. 33NagpurMaharashtra, India
    1544.0×
  34. 34PāliRajasthan, India
    1544.0×
  35. 35PylaíaCentral Macedonia, Greece
    1543.9×
  36. 36University CityMissouri, United States
    1533.9×
  37. 37MothīhāriBihar, India
    1533.9×
  38. 38LamphunLamphun, Thailand
    1523.8×
  39. 39JalgaonMaharashtra, India
    1523.8×
  40. 40NanNan, Thailand
    1523.8×
  41. 41Chiang RaiChiang Rai, Thailand
    1523.8×
  42. 42Upper AltonIllinois, United States
    1513.7×
  43. 43MuzaffarpurBihar, India
    1513.7×
  44. 44NandedMaharashtra, India
    1503.7×
  45. 45ChāndaMaharashtra, India
    1503.7×
  46. 46Chiang MaiChiang Mai, Thailand
    1473.6×
  47. 46SholapurMaharashtra, India
    1473.6×
  48. 48Dera Colliery TownshipOdisha, India
    1443.5×
  49. 49AurangābādBihar, India
    1433.5×
  50. 50Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1433.5×
  51. 51DushanbeDushanbe, Tajikistan
    1423.5×
  52. 52ThiruvananthapuramKerala, India
    1423.5×
  53. 52KolhāpurMaharashtra, India
    1423.5×
  54. 54DecaturIllinois, United States
    1413.5×
  55. 55SpringdaleArkansas, United States
    1403.4×
  56. 56PhayaoPhayao, Thailand
    1393.4×
  57. 57Little RockArkansas, United States
    1393.4×
  58. 58KohimaNagaland, India
    1383.4×
  59. 59TumkūrKarnataka, India
    1383.4×
  60. 59YangonYangon, Myanmar
    1383.4×
  61. 61ChampaignIllinois, United States
    1373.3×
  62. 62SiliguriWest Bengal, India
    1343.3×
  63. 63BoisarMaharashtra, India
    1343.2×
  64. 64Fort WorthTexas, United States
    1313.2×
  65. 64PithampurMadhya Pradesh, India
    1313.2×
  66. 64SerilingampalleTelangana, India
    1313.2×
  67. 67MukdahanMukdahan, Thailand
    1303.2×
  68. 68KatiharBihar, India
    1303.1×
  69. 69PoitiersNew Aquitaine, France
    1283.1×
  70. 70YasothonYasothon, Thailand
    1273.1×
  71. 71Michigan CityIndiana, United States
    1263.1×
  72. 72MahādMaharashtra, India
    1263.0×
  73. 73KarurTamil Nadu, India
    1253.0×
  74. 74GorakhpurUttar Pradesh, India
    1253.0×
  75. 75KrotoszynGreater Poland, Poland
    1222.9×
  76. 76LucknowUttar Pradesh, India
    1212.9×
  77. 77ZaječarCentral Serbia, Serbia
    1212.9×
  78. 78TexarkanaTexas, United States
    1202.9×
  79. 79CorsicanaTexas, United States
    1202.9×
  80. 80Sri GanganagarRajasthan, India
    1192.8×
  81. 81Istanbullow-cost sensorsIstanbul, Turkey
    1182.8×
  82. 82BengaluruKarnataka, India
    1182.8×
  83. 83AkolaMaharashtra, India
    1172.8×
  84. 84ParbhaniMaharashtra, India
    1162.8×
  85. 84BettiahBihar, India
    1162.8×
  86. 86ManamaManama, Bahrain
    1152.7×
  87. 86GwaliorMadhya Pradesh, India
    1152.7×
  88. 88LampangLampang, Thailand
    1142.7×
  89. 89SangāreddiTelangana, India
    1142.7×
  90. 89Chik BallāpurKarnataka, India
    1142.7×
  91. 91Mae SotTak, Thailand
    1142.7×
  92. 92KotaRajasthan, India
    1142.7×
  93. 93Yerevanlow-cost sensorsYerevan, Armenia
    1132.7×
  94. 94BeltonTexas, United States
    1122.7×
  95. 95JaipurRajasthan, India
    1112.6×
  96. 96HollandMichigan, United States
    1112.6×
  97. 97BuxarBihar, India
    1112.6×
  98. 97SpringfieldMissouri, United States
    1112.6×
  99. 99PuneMaharashtra, India
    1102.6×
  100. 100RaipurChhattisgarh, India
    1102.6×
  101. 101ClosepetKarnataka, India
    1102.6×
  102. 101AurangabadMaharashtra, India
    1102.6×
  103. 101Khon KaenKhon Kaen, Thailand
    1102.6×
  104. 101JenisonMichigan, United States
    1102.6×
  105. 105KanpurUttar Pradesh, India
    1102.6×
  106. 106Ciudad Benito JuárezNuevo León, Mexico
    1092.6×
  107. 106PortageIndiana, United States
    1092.6×
  108. 108MalegaonMaharashtra, India
    1082.6×
  109. 109Bihār SharīfBihar, India
    1082.6×
  110. 109KalasinKalasin, Thailand
    1082.6×
  111. 111UdaipurRajasthan, India
    1072.5×
  112. 111TirupparangunramTamil Nadu, India
    1072.5×
  113. 111TiruchirappalliTamil Nadu, India
    1072.5×
  114. 114GuadalajaraJalisco, Mexico
    1072.5×
  115. 115BhāgalpurBihar, India
    1072.5×
  116. 115TratTrat, Thailand
    1072.5×
  117. 115Amnat CharoenAmnat Charoen, Thailand
    1072.5×
  118. 118ArāriaBihar, India
    1072.5×
  119. 119BharatpurRajasthan, India
    1062.5×
  120. 120ChāpraBihar, India
    1062.5×
  121. 121AmravatiMaharashtra, India
    1052.5×
  122. 122Charkhi DādriHaryana, India
    1052.5×
  123. 123KalyānMaharashtra, India
    1052.5×
  124. 124RatlāmMadhya Pradesh, India
    1042.5×
  125. 125ThāneMaharashtra, India
    1042.5×
  126. 125TulsaOklahoma, United States
    1042.5×
  127. 127Brownsvillelow-cost sensorsTexas, United States
    1032.4×
  128. 128ShrīrāmpurWest Bengal, India
    1022.4×
  129. 129AnantapurAndhra Pradesh, India
    1022.4×
  130. 129ŁaskŁódź Voivodeship, Poland
    1022.4×
  131. 131GangtokSikkim, India
    1012.4×
  132. 131AhmedabadGujarat, India
    1012.4×
  133. 133DewasMadhya Pradesh, India
    1002.4×
  134. 134Quezon Citylow-cost sensorsNational Capital Region, Philippines
    1002.3×
  135. 135WyomingMichigan, United States
    992.3×
  136. 136YadgirKarnataka, India
    992.3×
  137. 136Pimpri-ChinchwadMaharashtra, India
    992.3×
  138. 138ConroeTexas, United States
    992.3×
  139. 139OtwockMazovia, Poland
    992.3×
  140. 140MungerBihar, India
    982.3×
  141. 141BilāspurChhattisgarh, India
    982.3×
  142. 141Stodůlkylow-cost sensorsPrague, Czechia
    982.3×
  143. 141TolucaMéxico, Mexico
    982.3×
  144. 144VijayawadaAndhra Pradesh, India
    982.3×
  145. 144KadapaAndhra Pradesh, India
    982.3×
  146. 144McAlesterOklahoma, United States
    982.3×
  147. 144Grand RapidsMichigan, United States
    982.3×
  148. 148ŻyrardówMazovia, Poland
    982.3×
  149. 149DhaulpurRajasthan, India
    972.3×
  150. 150MangaluruKarnataka, India
    972.3×
  151. 151RamanathapuramTamil Nadu, India
    972.2×
  152. 152GaryIndiana, United States
    972.2×
  153. 153ShillongMeghalaya, India
    962.2×
  154. 153BadlapurMaharashtra, India
    962.2×
  155. 155Sawai MadhopurRajasthan, India
    962.2×
  156. 156PanvelMaharashtra, India
    962.2×
  157. 157Hacienda Santa FeJalisco, Mexico
    962.2×
  158. 158LoeiLoei, Thailand
    952.2×
  159. 159Roi EtRoi Et, Thailand
    952.2×
  160. 160GuwahatiAssam, India
    952.2×
  161. 161Cadereyta JiménezNuevo León, Mexico
    952.2×
  162. 162CoimbatoreTamil Nadu, India
    942.1×
  163. 162Si Maha PhotPrachin Buri, Thailand
    942.1×
  164. 164NashikMaharashtra, India
    932.1×
  165. 165DūngarpurRajasthan, India
    932.1×
  166. 165San Salvador TizatlalliMéxico, Mexico
    932.1×
  167. 167OsornoLos Lagos Region, Chile
    932.1×
  168. 168BulandshahrUttar Pradesh, India
    932.1×
  169. 169BānswāraRajasthan, India
    932.1×
  170. 169SarajevoFederation of B&H, Bosnia and Herzegovina
    932.1×
  171. 171KolkataWest Bengal, India
    922.1×
  172. 172PratāpgarhRajasthan, India
    922.1×
  173. 172GayaBihar, India
    922.1×
  174. 172Dera MāndiDelhi, India
    922.1×
  175. 172BegusaraiBihar, India
    922.1×
  176. 172TravnikFederation of B&H, Bosnia and Herzegovina
    922.1×
  177. 177KollamKerala, India
    922.1×
  178. 177GhāziābādUttar Pradesh, India
    922.1×
  179. 177Chiayi CityTaiwan, Taiwan
    922.1×
  180. 177Victoria de DurangoDurango, Mexico
    922.1×
  181. 177DentonTexas, United States
    922.1×
  182. 182BhopalMadhya Pradesh, India
    922.1×
  183. 182South BendIndiana, United States
    922.1×
  184. 184HoustonTexas, United States
    922.1×
  185. 185MonterreyNuevo León, Mexico
    912.1×
  186. 185Nepeanlow-cost sensorsOntario, Canada
    912.1×
  187. 185AlangadKerala, India
    912.1×
  188. 188VaranasiUttar Pradesh, India
    912.0×
  189. 189NegotinCentral Serbia, Serbia
    912.0×
  190. 189ValjevoCentral Serbia, Serbia
    912.0×
  191. 189AmīnpurTelangana, India
    912.0×
  192. 193ThrissurKerala, India
    912.0×
  193. 194KishanganjBihar, India
    902.0×
  194. 194LubańLower Silesia, Poland
    902.0×
  195. 196DoltonIllinois, United States
    902.0×
  196. 197DouliuTaiwan, Taiwan
    892.0×
  197. 198BawānaDelhi, India
    892.0×
  198. 198LafayetteIndiana, United States
    892.0×
  199. 200Udon ThaniUdon Thani, Thailand
    892.0×

Top 200 of 2,603 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 15, 2025, smogrank.com/history/2025-03-15 (accessed 2 Oct 2026).

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