SmogRank / History / March 6, 2025

Most polluted cities on March 6, 2025

2,499 cities ranked by their average PM2.5 over the day; the worst was Ariyalūr, India, at 229.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during March 6, 2025. All episodes.

← Ariyalūr 229.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for March 6, 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. 1AriyalūrTamil Nadu, India
    30815.3×
  2. 2Sunland ParkNew Mexico, United States
    22510.0×
  3. 3NagapattinamTamil Nadu, India
    2179.5×
  4. 4Kampalalow-cost sensorsCentral Region, Uganda
    2169.4×
  5. 4LoniUttar Pradesh, India
    2169.4×
  6. 6El PasoTexas, United States
    2028.5×
  7. 7KoppalKarnataka, India
    1957.9×
  8. 8SocorroTexas, United States
    1937.7×
  9. 9KruševacCentral Serbia, Serbia
    1927.6×
  10. 10BhiwadiRajasthan, India
    1897.3×
  11. 11NegotinCentral Serbia, Serbia
    1867.1×
  12. 12Dhakalow-cost sensorsDhaka Division, Bangladesh
    1846.9×
  13. 13N'DjamenaN’Djaména, Chad
    1826.7×
  14. 14AngulOdisha, India
    1796.4×
  15. 15ZaječarCentral Serbia, Serbia
    1776.2×
  16. 16BawānaDelhi, India
    1766.1×
  17. 17ŠabacCentral Serbia, Serbia
    1756.0×
  18. 18JalgaonMaharashtra, India
    1725.7×
  19. 19Kathmandulow-cost sensorsBagmati Province, Nepal
    1695.4×
  20. 20MalegaonMaharashtra, India
    1675.3×
  21. 21HājīpurBihar, India
    1675.2×
  22. 22GuwahatiAssam, India
    1665.2×
  23. 23KohimaNagaland, India
    1665.2×
  24. 24Dera Colliery TownshipOdisha, India
    1665.2×
  25. 25Banja LukaSrpska, Bosnia and Herzegovina
    1665.1×
  26. 26CuttackOdisha, India
    1655.1×
  27. 27PāliRajasthan, India
    1655.0×
  28. 28PančevoVojvodina, Serbia
    1655.0×
  29. 29SuboticaVojvodina, Serbia
    1644.9×
  30. 30LeskovacCentral Serbia, Serbia
    1634.8×
  31. 31SmederevoCentral Serbia, Serbia
    1634.8×
  32. 32Novi PazarCentral Serbia, Serbia
    1624.8×
  33. 33Ubon RatchathaniUbon Ratchathani, Thailand
    1624.8×
  34. 34Mae SaiChiang Rai, Thailand
    1624.8×
  35. 35NanNan, Thailand
    1624.7×
  36. 36LampangLampang, Thailand
    1614.7×
  37. 37DejCluj County, Romania
    1604.6×
  38. 38TirupatiAndhra Pradesh, India
    1604.6×
  39. 39SiliguriWest Bengal, India
    1604.6×
  40. 40KikindaVojvodina, Serbia
    1604.5×
  41. 41BhelaiChhattisgarh, India
    1594.4×
  42. 42Charkhi DādriHaryana, India
    1584.4×
  43. 42KrotoszynGreater Poland, Poland
    1584.4×
  44. 44PuneMaharashtra, India
    1584.3×
  45. 45ObrenovacCentral Serbia, Serbia
    1584.3×
  46. 46NandedMaharashtra, India
    1564.2×
  47. 47Zagreblow-cost sensorsZagreb, Croatia
    1564.2×
  48. 48GurugramHaryana, India
    1564.2×
  49. 49MahādMaharashtra, India
    1564.2×
  50. 50KraljevoCentral Serbia, Serbia
    1564.1×
  51. 51UžiceCentral Serbia, Serbia
    1554.1×
  52. 52AhmedabadGujarat, India
    1554.1×
  53. 53Mae SotTak, Thailand
    1554.1×
  54. 54TirumalaAndhra Pradesh, India
    1554.1×
  55. 55LoznicaCentral Serbia, Serbia
    1554.0×
  56. 56LazarevacCentral Serbia, Serbia
    1544.0×
  57. 57LamphunLamphun, Thailand
    1544.0×
  58. 58PhayaoPhayao, Thailand
    1544.0×
  59. 59PhraePhrae, Thailand
    1544.0×
  60. 60RourkelaOdisha, India
    1544.0×
  61. 61JodhpurRajasthan, India
    1533.9×
  62. 62ProkupljeCentral Serbia, Serbia
    1533.9×
  63. 62GummidipundiTamil Nadu, India
    1533.9×
  64. 64ĆuprijaCentral Serbia, Serbia
    1533.9×
  65. 64GhāziābādUttar Pradesh, India
    1533.9×
  66. 66BhubaneswarOdisha, India
    1533.9×
  67. 67ClosepetKarnataka, India
    1533.9×
  68. 68PanvelMaharashtra, India
    1533.9×
  69. 69Dera MāndiDelhi, India
    1533.9×
  70. 70SasarāmBihar, India
    1523.8×
  71. 70LudhianaPunjab, India
    1523.8×
  72. 72VelloreTamil Nadu, India
    1523.8×
  73. 72BaddiHimachal Pradesh, India
    1523.8×
  74. 74Sri GanganagarRajasthan, India
    1523.8×
  75. 75Pimpri-ChinchwadMaharashtra, India
    1523.8×
  76. 76AnkleshwarGujarat, India
    1523.8×
  77. 77KłodzkoLower Silesia, Poland
    1513.7×
  78. 78SerilingampalleTelangana, India
    1513.7×
  79. 79YangonYangon, Myanmar
    1513.7×
  80. 80NišCentral Serbia, Serbia
    1503.7×
  81. 81DurgapurWest Bengal, India
    1503.7×
  82. 81UttaraditUttaradit, Thailand
    1503.7×
  83. 81PithampurMadhya Pradesh, India
    1503.7×
  84. 84ZemunCentral Serbia, Serbia
    1503.7×
  85. 85NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    1493.7×
  86. 85Czechowice-DziedziceSilesia, Poland
    1493.7×
  87. 87NarelaDelhi, India
    1493.7×
  88. 88Stodůlkylow-cost sensorsPrague, Czechia
    1493.7×
  89. 89KalyānMaharashtra, India
    1483.6×
  90. 90OotyTamil Nadu, India
    1473.6×
  91. 90KadapaAndhra Pradesh, India
    1473.6×
  92. 90KolkataWest Bengal, India
    1473.6×
  93. 93PirotCentral Serbia, Serbia
    1463.6×
  94. 94PurniaBihar, India
    1453.6×
  95. 95BelgradeCentral Serbia, Serbia
    1433.5×
  96. 96Chiang RaiChiang Rai, Thailand
    1433.5×
  97. 96BegusaraiBihar, India
    1433.5×
  98. 98BadlapurMaharashtra, India
    1423.5×
  99. 99YasothonYasothon, Thailand
    1423.5×
  100. 100CoimbatoreTamil Nadu, India
    1423.5×
  101. 101PatnaBihar, India
    1413.4×
  102. 102SukhothaiSukhothai, Thailand
    1403.4×
  103. 103ShrīrāmpurWest Bengal, India
    1393.4×
  104. 104ByasanagarOdisha, India
    1393.4×
  105. 105MukdahanMukdahan, Thailand
    1383.4×
  106. 106CodleaBrașov County, Romania
    1373.4×
  107. 106ĀsansolWest Bengal, India
    1373.4×
  108. 106Nong Bua LamphuNong Bua Lamphu, Thailand
    1373.4×
  109. 109AkolaMaharashtra, India
    1373.3×
  110. 110UdaipurRajasthan, India
    1363.3×
  111. 111Kamphaeng PhetKamphaeng Phet, Thailand
    1363.3×
  112. 111ShenyangLiaoning, China
    1363.3×
  113. 113KalasinKalasin, Thailand
    1363.3×
  114. 114MandideepMadhya Pradesh, India
    1353.3×
  115. 115AjmerRajasthan, India
    1353.3×
  116. 116FaridabadHaryana, India
    1343.3×
  117. 117MungerBihar, India
    1343.2×
  118. 118MuzaffarpurBihar, India
    1333.2×
  119. 118DindigulTamil Nadu, India
    1333.2×
  120. 118DelhiDelhi, India
    1333.2×
  121. 121KragujevacCentral Serbia, Serbia
    1313.2×
  122. 122AmaravatiAndhra Pradesh, India
    1303.2×
  123. 123LubańLower Silesia, Poland
    1303.2×
  124. 124MumbaiMaharashtra, India
    1303.1×
  125. 125ŁaskŁódź Voivodeship, Poland
    1303.1×
  126. 127Chiang MaiChiang Mai, Thailand
    1283.1×
  127. 127LucknowUttar Pradesh, India
    1283.1×
  128. 127Amnat CharoenAmnat Charoen, Thailand
    1283.1×
  129. 130AlangadKerala, India
    1273.1×
  130. 131KeonjhargarhOdisha, India
    1263.1×
  131. 132KolhāpurMaharashtra, India
    1263.0×
  132. 133ValjevoCentral Serbia, Serbia
    1263.0×
  133. 134OtwockMazovia, Poland
    1253.0×
  134. 135WłocławekKujawsko-Pomorskie, Poland
    1253.0×
  135. 136BaripādaOdisha, India
    1253.0×
  136. 137BihaćFederation of B&H, Bosnia and Herzegovina
    1243.0×
  137. 138NashikMaharashtra, India
    1233.0×
  138. 139TrebišovKošice Region, Slovakia
    1233.0×
  139. 139PrešovPrešov Region, Slovakia
    1233.0×
  140. 141SholapurMaharashtra, India
    1222.9×
  141. 142ThāneMaharashtra, India
    1222.9×
  142. 142JalorRajasthan, India
    1222.9×
  143. 144PhichitPhichit, Thailand
    1212.9×
  144. 145ČačakCentral Serbia, Serbia
    1212.9×
  145. 146GandhinagarGujarat, India
    1212.9×
  146. 146NaharlagunArunachal Pradesh, India
    1212.9×
  147. 148VijayawadaAndhra Pradesh, India
    1202.9×
  148. 148VapiGujarat, India
    1202.9×
  149. 150KielceŚwiętokrzyskie, Poland
    1202.9×
  150. 150InđijaVojvodina, Serbia
    1202.9×
  151. 150AurangabadMaharashtra, India
    1202.9×
  152. 150LoeiLoei, Thailand
    1202.9×
  153. 154KoprivnicaKoprivnica-Križevci, Croatia
    1202.9×
  154. 155BhilwaraRajasthan, India
    1192.9×
  155. 155Khon KaenKhon Kaen, Thailand
    1192.9×
  156. 155PoznańGreater Poland, Poland
    1192.9×
  157. 158AugustówPodlasie, Poland
    1192.8×
  158. 158RānīganjWest Bengal, India
    1192.8×
  159. 158Sakon NakhonSakon Nakhon, Thailand
    1192.8×
  160. 161BengaluruKarnataka, India
    1182.8×
  161. 162HanumāngarhRajasthan, India
    1182.8×
  162. 163YadgirKarnataka, India
    1182.8×
  163. 163JaipurRajasthan, India
    1182.8×
  164. 163GarcíaNuevo León, Mexico
    1182.8×
  165. 166Udon ThaniUdon Thani, Thailand
    1172.8×
  166. 167DausaRajasthan, India
    1162.8×
  167. 168RuseRuse, Bulgaria
    1162.8×
  168. 169RatlāmMadhya Pradesh, India
    1162.8×
  169. 170RajamahendravaramAndhra Pradesh, India
    1152.8×
  170. 170BelpaharOdisha, India
    1152.8×
  171. 172KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1142.7×
  172. 172Roi EtRoi Et, Thailand
    1142.7×
  173. 174RairangpurOdisha, India
    1122.7×
  174. 175BhāgalpurBihar, India
    1122.7×
  175. 175KaliszGreater Poland, Poland
    1122.7×
  176. 175Sremska MitrovicaVojvodina, Serbia
    1122.7×
  177. 178Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    1112.6×
  178. 178GūduvāncheriTamil Nadu, India
    1112.6×
  179. 180GorakhpurUttar Pradesh, India
    1112.6×
  180. 181GwaliorMadhya Pradesh, India
    1112.6×
  181. 182PhetchabunPhetchabun, Thailand
    1102.6×
  182. 182LučenecBanská Bystrica Region, Slovakia
    1102.6×
  183. 184TirupparangunramTamil Nadu, India
    1102.6×
  184. 184Las CrucesNew Mexico, United States
    1102.6×
  185. 186Vranov nad TopľouPrešov Region, Slovakia
    1102.6×
  186. 186San Luis de la PazGuanajuato, Mexico
    1102.6×
  187. 188MiskolcBorsod-Abaúj-Zemplén, Hungary
    1102.6×
  188. 189TocopillaAntofagasta, Chile
    1092.6×
  189. 189MonterreyNuevo León, Mexico
    1092.6×
  190. 191SangāreddiTelangana, India
    1092.6×
  191. 192NeelankaraiTamil Nadu, India
    1092.6×
  192. 193HumennéPrešov Region, Slovakia
    1082.6×
  193. 193Maha SarakhamMaha Sarakham, Thailand
    1082.6×
  194. 195BhiwandiMaharashtra, India
    1082.6×
  195. 195Gorzów WielkopolskiLubusz, Poland
    1082.6×
  196. 197MothīhāriBihar, India
    1082.6×
  197. 198HaldiaWest Bengal, India
    1072.5×
  198. 199CoyhaiqueAysén, Chile
    1072.5×
  199. 200ChaiyaphumChaiyaphum, Thailand
    1072.5×

Top 200 of 2,499 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 6, 2025, smogrank.com/history/2025-03-06 (accessed 3 Oct 2026).

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