SmogRank / History / March 18, 2025

Most polluted cities on March 18, 2025

2,604 cities ranked by their average PM2.5 over the day; the worst was Nagapattinam, India, at 516.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during March 18, 2025. All episodes.

← Nagapattinam 516.0 µg/m³ 500 µg/m³15 WHO 24-hour guideline
Every city ranked for March 18, 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. 1NagapattinamTamil Nadu, India
    500+34.4×
  2. 2El PasoTexas, United States
    31015.3×
  3. 3Sunland ParkNew Mexico, United States
    27913.6×
  4. 4Ciudad JuárezChihuahua, Mexico
    26212.5×
  5. 5ThiruvananthapuramKerala, India
    2179.5×
  6. 6LoniUttar Pradesh, India
    2098.9×
  7. 7AngulOdisha, India
    2018.4×
  8. 8Las CrucesNew Mexico, United States
    1917.5×
  9. 9N'DjamenaN’Djaména, Chad
    1897.3×
  10. 10HobbsNew Mexico, United States
    1867.0×
  11. 11HājīpurBihar, India
    1846.8×
  12. 12BawānaDelhi, India
    1826.6×
  13. 13OdessaTexas, United States
    1816.6×
  14. 14Kampalalow-cost sensorsCentral Region, Uganda
    1796.4×
  15. 15Dhakalow-cost sensorsDhaka Division, Bangladesh
    1776.2×
  16. 16SocorroTexas, United States
    1776.2×
  17. 17Mae SaiChiang Rai, Thailand
    1756.0×
  18. 18MandideepMadhya Pradesh, India
    1735.8×
  19. 19Dera MāndiDelhi, India
    1705.5×
  20. 20TambaramTamil Nadu, India
    1695.4×
  21. 21LubbockTexas, United States
    1675.2×
  22. 22NajafgarhDelhi, India
    1665.2×
  23. 23NarelaDelhi, India
    1665.1×
  24. 24LamphunLamphun, Thailand
    1665.1×
  25. 25KeonjhargarhOdisha, India
    1655.0×
  26. 26AurangābādBihar, India
    1655.0×
  27. 27GuwahatiAssam, India
    1634.8×
  28. 28Dubailow-cost sensorsDubai, United Arab Emirates
    1634.8×
  29. 28BarbilOdisha, India
    1634.8×
  30. 30JodaOdisha, India
    1634.8×
  31. 31Charkhi DādriHaryana, India
    1624.7×
  32. 32NanNan, Thailand
    1604.6×
  33. 33DurgapurWest Bengal, India
    1604.6×
  34. 34AnkleshwarGujarat, India
    1604.6×
  35. 35Sri GanganagarRajasthan, India
    1604.5×
  36. 36Chiang RaiChiang Rai, Thailand
    1594.5×
  37. 37Kathmandulow-cost sensorsBagmati Province, Nepal
    1594.4×
  38. 38ChāndaMaharashtra, India
    1584.3×
  39. 39LaturMaharashtra, India
    1574.3×
  40. 39ĀsansolWest Bengal, India
    1574.3×
  41. 41Chiang MaiChiang Mai, Thailand
    1574.2×
  42. 41BhiwadiRajasthan, India
    1574.2×
  43. 43PithampurMadhya Pradesh, India
    1564.2×
  44. 44SasarāmBihar, India
    1564.2×
  45. 45MungerBihar, India
    1564.1×
  46. 46VapiGujarat, India
    1554.1×
  47. 47TumkūrKarnataka, India
    1554.1×
  48. 48PatancheruTelangana, India
    1523.8×
  49. 49KarwarKarnataka, India
    1523.8×
  50. 50RourkelaOdisha, India
    1513.7×
  51. 51DewasMadhya Pradesh, India
    1513.7×
  52. 52JalgaonMaharashtra, India
    1493.7×
  53. 53RānīganjWest Bengal, India
    1473.6×
  54. 54MalegaonMaharashtra, India
    1463.6×
  55. 54DelhiDelhi, India
    1463.6×
  56. 56PhayaoPhayao, Thailand
    1463.6×
  57. 57Mae SotTak, Thailand
    1453.5×
  58. 57ByasanagarOdisha, India
    1453.5×
  59. 59BulandshahrUttar Pradesh, India
    1443.5×
  60. 60NashikMaharashtra, India
    1433.5×
  61. 61SiwānBihar, India
    1423.5×
  62. 61SerilingampalleTelangana, India
    1423.5×
  63. 63NagpurMaharashtra, India
    1423.5×
  64. 63BoisarMaharashtra, India
    1423.5×
  65. 65GhāziābādUttar Pradesh, India
    1423.5×
  66. 66NandedMaharashtra, India
    1413.5×
  67. 67Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1413.4×
  68. 68SholapurMaharashtra, India
    1393.4×
  69. 68GandhinagarGujarat, India
    1393.4×
  70. 70KalyānMaharashtra, India
    1393.4×
  71. 71HanumāngarhRajasthan, India
    1373.4×
  72. 72KhargharMaharashtra, India
    1363.3×
  73. 73RoparPunjab, India
    1343.3×
  74. 74LampangLampang, Thailand
    1343.3×
  75. 74SingrauliMadhya Pradesh, India
    1343.3×
  76. 76KrotoszynGreater Poland, Poland
    1333.2×
  77. 77DhaulpurRajasthan, India
    1313.2×
  78. 78BegusaraiBihar, India
    1303.1×
  79. 79LudhianaPunjab, India
    1293.1×
  80. 80BharatpurRajasthan, India
    1283.1×
  81. 81HassanKarnataka, India
    1273.1×
  82. 82MahādMaharashtra, India
    1273.1×
  83. 82KhannaPunjab, India
    1273.1×
  84. 84AhmedabadGujarat, India
    1273.1×
  85. 85BaripādaOdisha, India
    1263.1×
  86. 85AkolaMaharashtra, India
    1263.1×
  87. 87NavalpattuTamil Nadu, India
    1263.0×
  88. 88GuadalajaraJalisco, Mexico
    1253.0×
  89. 89CholulaPuebla, Mexico
    1243.0×
  90. 90SiliguriWest Bengal, India
    1243.0×
  91. 91GorakhpurUttar Pradesh, India
    1233.0×
  92. 92PuneMaharashtra, India
    1233.0×
  93. 92MuzaffarpurBihar, India
    1233.0×
  94. 94BaddiHimachal Pradesh, India
    1233.0×
  95. 95KolārKarnataka, India
    1222.9×
  96. 96AurangabadMaharashtra, India
    1222.9×
  97. 96AgraUttar Pradesh, India
    1222.9×
  98. 98ThāneMaharashtra, India
    1222.9×
  99. 99TolucaMéxico, Mexico
    1212.9×
  100. 100UttaraditUttaradit, Thailand
    1202.9×
  101. 100Victoria de DurangoDurango, Mexico
    1202.9×
  102. 102AjmerRajasthan, India
    1202.9×
  103. 103BelagaviKarnataka, India
    1202.9×
  104. 104BelpaharOdisha, India
    1192.9×
  105. 105TirupatiAndhra Pradesh, India
    1182.8×
  106. 106BhelaiChhattisgarh, India
    1182.8×
  107. 107Bielsko-BialaSilesia, Poland
    1182.8×
  108. 108MuzaffarnagarUttar Pradesh, India
    1172.8×
  109. 109TratTrat, Thailand
    1162.8×
  110. 110ShrīrāmpurWest Bengal, India
    1152.7×
  111. 111PanvelMaharashtra, India
    1152.7×
  112. 112PhraePhrae, Thailand
    1142.7×
  113. 113CoyhaiqueAysén, Chile
    1132.7×
  114. 114SāngliMaharashtra, India
    1132.7×
  115. 114PatnaBihar, India
    1132.7×
  116. 114Wadgaon KolhatiMaharashtra, India
    1132.7×
  117. 117SangāreddiTelangana, India
    1122.7×
  118. 118KotaRajasthan, India
    1122.7×
  119. 119ChandigarhChandigarh, India
    1122.7×
  120. 119ŻywiecSilesia, Poland
    1122.7×
  121. 121ParbhaniMaharashtra, India
    1112.6×
  122. 122Islamabadlow-cost sensorsIslamabad, Pakistan
    1112.6×
  123. 123GurugramHaryana, India
    1102.6×
  124. 124NoidaUttar Pradesh, India
    1092.6×
  125. 124Pimpri-ChinchwadMaharashtra, India
    1092.6×
  126. 126LubańLower Silesia, Poland
    1092.6×
  127. 127BadlapurMaharashtra, India
    1092.6×
  128. 128PurniaBihar, India
    1082.6×
  129. 129GwaliorMadhya Pradesh, India
    1082.6×
  130. 129Bang Pakonglow-cost sensorsChachoengsao, Thailand
    1082.6×
  131. 131San Salvador TizatlalliMéxico, Mexico
    1082.6×
  132. 132ManamaManama, Bahrain
    1072.5×
  133. 133BuyeoChungcheongnam-do, South Korea
    1062.5×
  134. 134AriyalūrTamil Nadu, India
    1042.5×
  135. 134PrayagrajUttar Pradesh, India
    1042.5×
  136. 136XonacatlánMéxico, Mexico
    1042.5×
  137. 137LucknowUttar Pradesh, India
    1042.4×
  138. 138VijayawadaAndhra Pradesh, India
    1042.4×
  139. 138RānipetTamil Nadu, India
    1042.4×
  140. 140BhilaiChhattisgarh, India
    1032.4×
  141. 141AmravatiMaharashtra, India
    1032.4×
  142. 141Vientianelow-cost sensorsVientiane Prefecture, Laos
    1032.4×
  143. 143BhayandarMaharashtra, India
    1022.4×
  144. 144RatlāmMadhya Pradesh, India
    1022.4×
  145. 145JhunjhunūnRajasthan, India
    1022.4×
  146. 145KolkataWest Bengal, India
    1022.4×
  147. 147ChittorgarhRajasthan, India
    1012.4×
  148. 147AlangadKerala, India
    1012.4×
  149. 149YangonYangon, Myanmar
    1012.4×
  150. 150VelloreTamil Nadu, India
    1002.4×
  151. 150RājsamandRajasthan, India
    1002.4×
  152. 150Lop BuriLopburi, Thailand
    1002.4×
  153. 153JaipurRajasthan, India
    1002.4×
  154. 153GangtokSikkim, India
    1002.4×
  155. 155Sawai MadhopurRajasthan, India
    992.3×
  156. 155BhiwandiMaharashtra, India
    992.3×
  157. 157JodhpurRajasthan, India
    992.3×
  158. 158AmīnpurTelangana, India
    992.3×
  159. 159ZaječarCentral Serbia, Serbia
    992.3×
  160. 160KłodzkoLower Silesia, Poland
    982.3×
  161. 161Ciudad NezahualcoyotlMéxico, Mexico
    982.3×
  162. 162RamanathapuramTamil Nadu, India
    972.3×
  163. 163ShenyangLiaoning, China
    972.3×
  164. 164YadgirKarnataka, India
    972.3×
  165. 164HāpurUttar Pradesh, India
    972.3×
  166. 164Khon KaenKhon Kaen, Thailand
    972.3×
  167. 167PatiālaPunjab, India
    972.2×
  168. 168HyderabadTelangana, India
    962.2×
  169. 169TirumalaAndhra Pradesh, India
    952.2×
  170. 169DūngarpurRajasthan, India
    952.2×
  171. 171SukhothaiSukhothai, Thailand
    952.2×
  172. 171Si Maha PhotPrachin Buri, Thailand
    952.2×
  173. 173Chik BallāpurKarnataka, India
    952.2×
  174. 173Prachin BuriPrachin Buri, Thailand
    952.2×
  175. 175TonkRajasthan, India
    942.2×
  176. 176Yerevanlow-cost sensorsYerevan, Armenia
    942.2×
  177. 176OotyTamil Nadu, India
    942.2×
  178. 176MangaluruKarnataka, India
    942.2×
  179. 176PhichitPhichit, Thailand
    942.2×
  180. 176ChiguayanteBiobio, Chile
    942.2×
  181. 181GūduvāncheriTamil Nadu, India
    932.1×
  182. 182FīrozābādUttar Pradesh, India
    932.1×
  183. 182IrapuatoGuanajuato, Mexico
    932.1×
  184. 184Tuen MunTuen Mun, Hong Kong
    932.1×
  185. 184San Luis de la PazGuanajuato, Mexico
    932.1×
  186. 186CuttackOdisha, India
    922.1×
  187. 186Chai NatChai Nat, Thailand
    922.1×
  188. 188BilāspurChhattisgarh, India
    922.1×
  189. 188Ban ChangRayong, Thailand
    922.1×
  190. 188TuxtlaChiapas, Mexico
    922.1×
  191. 188San Francisco TlalcilalcalpanMéxico, Mexico
    922.1×
  192. 192DhuleMaharashtra, India
    922.1×
  193. 192DausaRajasthan, India
    922.1×
  194. 192DādriUttar Pradesh, India
    922.1×
  195. 195CoimbatoreTamil Nadu, India
    922.1×
  196. 196Hacienda Santa FeJalisco, Mexico
    912.1×
  197. 197ShillongMeghalaya, India
    912.0×
  198. 197AtlixcoPuebla, Mexico
    912.0×
  199. 199Kamphaeng PhetKamphaeng Phet, Thailand
    912.0×
  200. 199BengaluruKarnataka, India
    912.0×

Top 200 of 2,604 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

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SmogRank, most polluted cities, PM2.5, March 18, 2025, smogrank.com/history/2025-03-18 (accessed 2 Oct 2026).

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