SmogRank / History / April 2, 2025

Most polluted cities on April 2, 2025

2,658 cities ranked by their average PM2.5 over the day; the worst was Loni, India, at 271.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during April 2, 2025. All episodes.

← Loni 271.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for April 2, 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. 1LoniUttar Pradesh, India
    39218.1×
  2. 2BawānaDelhi, India
    23810.9×
  3. 3BelagaviKarnataka, India
    23710.8×
  4. 4GhāziābādUttar Pradesh, India
    23510.7×
  5. 4DādriUttar Pradesh, India
    23510.7×
  6. 6NarelaDelhi, India
    1917.5×
  7. 7CalexicoCalifornia, United States
    1897.3×
  8. 8SasarāmBihar, India
    1836.7×
  9. 9RourkelaOdisha, India
    1826.7×
  10. 10AurangābādBihar, India
    1786.3×
  11. 12DelhiDelhi, India
    1776.2×
  12. 13AnkleshwarGujarat, India
    1776.1×
  13. 14MandideepMadhya Pradesh, India
    1766.0×
  14. 15VapiGujarat, India
    1756.0×
  15. 16SingrauliMadhya Pradesh, India
    1725.7×
  16. 17HājīpurBihar, India
    1725.7×
  17. 18GuwahatiAssam, India
    1705.5×
  18. 19BarbilOdisha, India
    1705.5×
  19. 20BāghpatUttar Pradesh, India
    1705.5×
  20. 21NajafgarhDelhi, India
    1695.4×
  21. 22PurniaBihar, India
    1695.4×
  22. 23KoppalKarnataka, India
    1675.2×
  23. 23DewasMadhya Pradesh, India
    1675.2×
  24. 25PatnaBihar, India
    1675.2×
  25. 26NanNan, Thailand
    1665.1×
  26. 27BhiwadiRajasthan, India
    1655.0×
  27. 28GangtokSikkim, India
    1645.0×
  28. 29PāliRajasthan, India
    1634.8×
  29. 30SiliguriWest Bengal, India
    1634.8×
  30. 30KhargharMaharashtra, India
    1634.8×
  31. 32GandhinagarGujarat, India
    1624.7×
  32. 33RoparPunjab, India
    1614.7×
  33. 34SiwānBihar, India
    1614.7×
  34. 35Sri GanganagarRajasthan, India
    1614.7×
  35. 36HanoiHanoi, Vietnam
    1614.6×
  36. 37Mae SaiChiang Rai, Thailand
    1614.6×
  37. 38ChittoorAndhra Pradesh, India
    1614.6×
  38. 39PithampurMadhya Pradesh, India
    1604.5×
  39. 40MahādMaharashtra, India
    1604.5×
  40. 41BulandshahrUttar Pradesh, India
    1594.5×
  41. 42ChittorgarhRajasthan, India
    1594.5×
  42. 42Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1594.5×
  43. 44LucknowUttar Pradesh, India
    1594.4×
  44. 45NashikMaharashtra, India
    1594.4×
  45. 46Nakhon LuangPhra Nakhon Si Ayutthaya, Thailand
    1584.4×
  46. 47AurangabadMaharashtra, India
    1584.4×
  47. 48SāngliMaharashtra, India
    1584.3×
  48. 49PatiālaPunjab, India
    1574.3×
  49. 50Islamabadlow-cost sensorsIslamabad, Pakistan
    1574.3×
  50. 51BegusaraiBihar, India
    1574.3×
  51. 52AmritsarPunjab, India
    1574.2×
  52. 53Chiang RaiChiang Rai, Thailand
    1564.2×
  53. 54TiruchirappalliTamil Nadu, India
    1564.1×
  54. 55KohimaNagaland, India
    1554.1×
  55. 56Chiang MaiChiang Mai, Thailand
    1554.1×
  56. 57MuzaffarpurBihar, India
    1554.1×
  57. 58NagpurMaharashtra, India
    1554.1×
  58. 59AmravatiMaharashtra, India
    1554.1×
  59. 60LudhianaPunjab, India
    1554.1×
  60. 61SaharsaBihar, India
    1554.0×
  61. 62AgraUttar Pradesh, India
    1544.0×
  62. 63Vientianelow-cost sensorsVientiane Prefecture, Laos
    1544.0×
  63. 64ChandigarhChandigarh, India
    1543.9×
  64. 65Wadgaon KolhatiMaharashtra, India
    1533.9×
  65. 66RatlāmMadhya Pradesh, India
    1533.9×
  66. 66KhannaPunjab, India
    1533.9×
  67. 68HanumāngarhRajasthan, India
    1533.9×
  68. 69ChāndaMaharashtra, India
    1533.9×
  69. 69BadlapurMaharashtra, India
    1533.9×
  70. 71LaturMaharashtra, India
    1533.9×
  71. 71BānswāraRajasthan, India
    1533.9×
  72. 73JabalpurMadhya Pradesh, India
    1523.8×
  73. 74BurgosCastille and León, Spain
    1523.8×
  74. 75BoisarMaharashtra, India
    1523.8×
  75. 76NagaonAssam, India
    1523.8×
  76. 77NoidaUttar Pradesh, India
    1523.8×
  77. 78PhayaoPhayao, Thailand
    1523.8×
  78. 79BaddiHimachal Pradesh, India
    1513.7×
  79. 80AhmedabadGujarat, India
    1513.7×
  80. 81MaiharMadhya Pradesh, India
    1493.7×
  81. 82TlaquepaqueJalisco, Mexico
    1483.6×
  82. 83BilāspurChhattisgarh, India
    1473.6×
  83. 84NaharlagunArunachal Pradesh, India
    1463.6×
  84. 85BhopalMadhya Pradesh, India
    1453.6×
  85. 86HāpurUttar Pradesh, India
    1443.5×
  86. 87UdaipurRajasthan, India
    1443.5×
  87. 88Dubailow-cost sensorsDubai, United Arab Emirates
    1433.5×
  88. 89GobindgarhPunjab, India
    1423.5×
  89. 90ChāpraBihar, India
    1423.5×
  90. 91ĀsansolWest Bengal, India
    1413.4×
  91. 92LamphunLamphun, Thailand
    1403.4×
  92. 92DhuleMaharashtra, India
    1403.4×
  93. 92PhraePhrae, Thailand
    1403.4×
  94. 95RaipurChhattisgarh, India
    1403.4×
  95. 96JalgaonMaharashtra, India
    1393.4×
  96. 97RairangpurOdisha, India
    1393.4×
  97. 98Victoria de DurangoDurango, Mexico
    1393.4×
  98. 99BharatpurRajasthan, India
    1383.4×
  99. 99Ban ChangRayong, Thailand
    1383.4×
  100. 101Nong KhaemBangkok, Thailand
    1383.4×
  101. 102GwaliorMadhya Pradesh, India
    1363.3×
  102. 103PanvelMaharashtra, India
    1363.3×
  103. 103Chik BallāpurKarnataka, India
    1363.3×
  104. 103AngulOdisha, India
    1363.3×
  105. 106ThāneMaharashtra, India
    1353.3×
  106. 107JalandharPunjab, India
    1353.3×
  107. 108MohaliPunjab, India
    1343.3×
  108. 109LampangLampang, Thailand
    1343.2×
  109. 110ClosepetKarnataka, India
    1333.2×
  110. 110CuddaloreTamil Nadu, India
    1333.2×
  111. 112MuzaffarnagarUttar Pradesh, India
    1333.2×
  112. 113BhelaiChhattisgarh, India
    1323.2×
  113. 114TirupatiAndhra Pradesh, India
    1313.2×
  114. 114Bang Pakonglow-cost sensorsChachoengsao, Thailand
    1313.2×
  115. 116MeerutUttar Pradesh, India
    1303.2×
  116. 117KalyānMaharashtra, India
    1303.1×
  117. 118CholulaPuebla, Mexico
    1283.1×
  118. 119SholapurMaharashtra, India
    1283.1×
  119. 120BhiwandiMaharashtra, India
    1263.0×
  120. 121ArāriaBihar, India
    1253.0×
  121. 122SangāreddiTelangana, India
    1243.0×
  122. 123Sawai MadhopurRajasthan, India
    1243.0×
  123. 124BelpaharOdisha, India
    1243.0×
  124. 125GayaBihar, India
    1233.0×
  125. 126GorakhpurUttar Pradesh, India
    1233.0×
  126. 126Bang NaBangkok, Thailand
    1233.0×
  127. 126Pimpri-ChinchwadMaharashtra, India
    1233.0×
  128. 129BuxarBihar, India
    1233.0×
  129. 129AnantapurAndhra Pradesh, India
    1233.0×
  130. 131JhānsiUttar Pradesh, India
    1222.9×
  131. 131UttaraditUttaradit, Thailand
    1222.9×
  132. 133Mae SotTak, Thailand
    1212.9×
  133. 133RishīkeshUttarakhand, India
    1212.9×
  134. 133RānīganjWest Bengal, India
    1212.9×
  135. 136RājsamandRajasthan, India
    1212.9×
  136. 137MumbaiMaharashtra, India
    1202.9×
  137. 138PratāpgarhRajasthan, India
    1202.9×
  138. 139VelloreTamil Nadu, India
    1192.9×
  139. 139OotyTamil Nadu, India
    1192.9×
  140. 141Khlong Sam WaBangkok, Thailand
    1182.8×
  141. 142PrayagrajUttar Pradesh, India
    1172.8×
  142. 142SeonghwanChungcheongnam-do, South Korea
    1172.8×
  143. 144RānipetTamil Nadu, India
    1172.8×
  144. 145JodhpurRajasthan, India
    1172.8×
  145. 145Dera Colliery TownshipOdisha, India
    1172.8×
  146. 147Chai NatChai Nat, Thailand
    1162.8×
  147. 148TirumalaAndhra Pradesh, India
    1162.8×
  148. 149Khan Na YaoBangkok, Thailand
    1152.7×
  149. 150Khlong LuangPathum Thani, Thailand
    1152.7×
  150. 151ValjevoCentral Serbia, Serbia
    1152.7×
  151. 152Lat KrabangBangkok, Thailand
    1142.7×
  152. 153KanpurUttar Pradesh, India
    1132.7×
  153. 153KadapaAndhra Pradesh, India
    1132.7×
  154. 155BhāgalpurBihar, India
    1132.7×
  155. 155Lak SiBangkok, Thailand
    1132.7×
  156. 157AkolaMaharashtra, India
    1132.7×
  157. 158AjmerRajasthan, India
    1122.7×
  158. 159RamanathapuramTamil Nadu, India
    1122.7×
  159. 159PhichitPhichit, Thailand
    1122.7×
  160. 161SamāstipurBihar, India
    1122.7×
  161. 161Suphan BuriSuphan Buri, Thailand
    1122.7×
  162. 163Istanbullow-cost sensorsIstanbul, Turkey
    1112.6×
  163. 164VijayawadaAndhra Pradesh, India
    1112.6×
  164. 164Ciudad JuárezChihuahua, Mexico
    1112.6×
  165. 166JhunjhunūnRajasthan, India
    1112.6×
  166. 167Ban Talat BuengChon Buri, Thailand
    1102.6×
  167. 167Bueng KumBangkok, Thailand
    1102.6×
  168. 169DūngarpurRajasthan, India
    1102.6×
  169. 169DausaRajasthan, India
    1102.6×
  170. 171BhayandarMaharashtra, India
    1102.6×
  171. 171PyeongtaekGyeonggi-do, South Korea
    1102.6×
  172. 173Ban Samae DamBangkok, Thailand
    1092.6×
  173. 174UjjainMadhya Pradesh, India
    1092.6×
  174. 175SīkarRajasthan, India
    1092.6×
  175. 175ŻywiecSilesia, Poland
    1092.6×
  176. 177CoimbatoreTamil Nadu, India
    1092.6×
  177. 178KotaRajasthan, India
    1082.6×
  178. 178Khon KaenKhon Kaen, Thailand
    1082.6×
  179. 180SocorroTexas, United States
    1082.6×
  180. 181RajākheriMadhya Pradesh, India
    1082.6×
  181. 182GummidipundiTamil Nadu, India
    1082.5×
  182. 183NacimientoBiobio, Chile
    1072.5×
  183. 184SuwonGyeonggi-do, South Korea
    1072.5×
  184. 185San Luis de la PazGuanajuato, Mexico
    1062.5×
  185. 186Prachin BuriPrachin Buri, Thailand
    1062.5×
  186. 187PuneMaharashtra, India
    1062.5×
  187. 188OsanGyeonggi-do, South Korea
    1052.5×
  188. 188Sai MaiBangkok, Thailand
    1052.5×
  189. 190JaipurRajasthan, India
    1052.5×
  190. 190QuthbullapurTelangana, India
    1052.5×
  191. 192DurgChhattisgarh, India
    1052.5×
  192. 192SantiagoSantiago Metropolitan, Chile
    1052.5×
  193. 194LoeiLoei, Thailand
    1042.5×
  194. 194PubalGyeonggi-do, South Korea
    1042.5×
  195. 194Saphan SungBangkok, Thailand
    1042.5×
  196. 198VaranasiUttar Pradesh, India
    1042.4×
  197. 199KanchanaburiKanchanaburi, Thailand
    1042.4×
  198. 199YasothonYasothon, Thailand
    1042.4×

Top 200 of 2,658 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 2, 2025, smogrank.com/history/2025-04-02 (accessed 2 Oct 2026).

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