SmogRank / History / May 11, 2025

Most polluted cities on May 11, 2025

2,686 cities ranked by their average PM2.5 over the day; the worst was Nacimiento, Chile, at 87.2 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 11, 2025. All episodes.

← Nacimiento 87.2 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for May 11, 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. 1NacimientoBiobio, Chile
    1735.8×
  2. 2LinaresMaule Region, Chile
    1695.4×
  3. 3NajafgarhDelhi, India
    1685.3×
  4. 4JodaOdisha, India
    1675.2×
  5. 5CuttackOdisha, India
    1644.9×
  6. 6HājīpurBihar, India
    1604.6×
  7. 7GhāziābādUttar Pradesh, India
    1594.4×
  8. 8RourkelaOdisha, India
    1584.4×
  9. 8BawānaDelhi, India
    1584.4×
  10. 10RairangpurOdisha, India
    1564.2×
  11. 11Santa Anita - Los FicusLima region, Peru
    1564.2×
  12. 12NarelaDelhi, India
    1564.1×
  13. 13DausaRajasthan, India
    1554.1×
  14. 13BarbilOdisha, India
    1554.1×
  15. 15HualquiBiobio, Chile
    1554.0×
  16. 16JhunjhunūnRajasthan, India
    1544.0×
  17. 17Sri GanganagarRajasthan, India
    1544.0×
  18. 18PatnaBihar, India
    1544.0×
  19. 18CuricóMaule Region, Chile
    1544.0×
  20. 20DelhiDelhi, India
    1533.9×
  21. 21AngulOdisha, India
    1523.8×
  22. 22BhiwadiRajasthan, India
    1523.8×
  23. 23ChāndaMaharashtra, India
    1513.7×
  24. 24MuzaffarnagarUttar Pradesh, India
    1503.7×
  25. 25BulandshahrUttar Pradesh, India
    1473.6×
  26. 26SantiagoSantiago Metropolitan, Chile
    1473.6×
  27. 27MohaliPunjab, India
    1473.6×
  28. 28DushanbeDushanbe, Tajikistan
    1453.6×
  29. 29BaripādaOdisha, India
    1453.5×
  30. 30AjmerRajasthan, India
    1443.5×
  31. 31LoniUttar Pradesh, India
    1443.5×
  32. 32TalaganteSantiago Metropolitan, Chile
    1443.5×
  33. 33PatiālaPunjab, India
    1433.5×
  34. 34Dera MāndiDelhi, India
    1433.5×
  35. 34BathindaPunjab, India
    1433.5×
  36. 36AmaravatiAndhra Pradesh, India
    1413.4×
  37. 37ManamaManama, Bahrain
    1383.4×
  38. 37Dubailow-cost sensorsDubai, United Arab Emirates
    1383.4×
  39. 39ĀsansolWest Bengal, India
    1373.3×
  40. 40GorakhpurUttar Pradesh, India
    1363.3×
  41. 41RamanathapuramTamil Nadu, India
    1353.3×
  42. 42TuxtlaChiapas, Mexico
    1353.3×
  43. 43LucknowUttar Pradesh, India
    1343.3×
  44. 44SīkarRajasthan, India
    1343.3×
  45. 45ChūruRajasthan, India
    1333.2×
  46. 46La UniónLos Ríos Region, Chile
    1323.2×
  47. 47NoidaUttar Pradesh, India
    1323.2×
  48. 48Puente AltoSantiago Metropolitan, Chile
    1313.2×
  49. 49OsornoLos Lagos Region, Chile
    1313.2×
  50. 50CoyhaiqueAysén, Chile
    1303.2×
  51. 51Puerto VarasLos Lagos Region, Chile
    1293.1×
  52. 52GummidipundiTamil Nadu, India
    1273.1×
  53. 52ChiguayanteBiobio, Chile
    1273.1×
  54. 54BikanerRajasthan, India
    1263.1×
  55. 54BhiwandiMaharashtra, India
    1263.1×
  56. 56BelpaharOdisha, India
    1263.0×
  57. 57TalcaMaule Region, Chile
    1253.0×
  58. 57RancaguaO'Higgins Region, Chile
    1253.0×
  59. 59Dera Colliery TownshipOdisha, India
    1253.0×
  60. 60NagpurMaharashtra, India
    1243.0×
  61. 60CallaoCallao, Peru
    1243.0×
  62. 62KolkataWest Bengal, India
    1243.0×
  63. 63MangaluruKarnataka, India
    1233.0×
  64. 63BhilwaraRajasthan, India
    1233.0×
  65. 63BhelaiChhattisgarh, India
    1233.0×
  66. 66JaipurRajasthan, India
    1222.9×
  67. 67ByasanagarOdisha, India
    1222.9×
  68. 68DādriUttar Pradesh, India
    1222.9×
  69. 69TonkRajasthan, India
    1212.9×
  70. 70KeonjhargarhOdisha, India
    1212.9×
  71. 71AhmedabadGujarat, India
    1212.9×
  72. 72KhurjaUttar Pradesh, India
    1192.9×
  73. 73ValdiviaLos Ríos Region, Chile
    1192.9×
  74. 74BharatpurRajasthan, India
    1172.8×
  75. 75JalandharPunjab, India
    1172.8×
  76. 76SerilingampalleTelangana, India
    1172.8×
  77. 77JakartaJakarta, Indonesia
    1152.7×
  78. 78BārānRajasthan, India
    1142.7×
  79. 79RasapūdipalemAndhra Pradesh, India
    1142.7×
  80. 80RānīganjWest Bengal, India
    1132.7×
  81. 81VijayawadaAndhra Pradesh, India
    1132.7×
  82. 82KigaliKigali, Rwanda
    1132.7×
  83. 83AnantapurAndhra Pradesh, India
    1122.7×
  84. 84MuzaffarpurBihar, India
    1122.7×
  85. 85AgraUttar Pradesh, India
    1122.7×
  86. 86ShenyangLiaoning, China
    1112.6×
  87. 87RajamahendravaramAndhra Pradesh, India
    1102.6×
  88. 88UdaipurRajasthan, India
    1092.6×
  89. 89AmritsarPunjab, India
    1082.6×
  90. 90ShrīrāmpurWest Bengal, India
    1082.5×
  91. 91San Francisco De BorjaLima region, Peru
    1072.5×
  92. 92KanpurUttar Pradesh, India
    1062.5×
  93. 92GandhinagarGujarat, India
    1062.5×
  94. 94SaharsaBihar, India
    1062.5×
  95. 95SangāreddiTelangana, India
    1052.5×
  96. 96RengoO'Higgins Region, Chile
    1052.5×
  97. 97ChennaiTamil Nadu, India
    1042.4×
  98. 98BadlapurMaharashtra, India
    1042.4×
  99. 99RaipurChhattisgarh, India
    1032.4×
  100. 99NanNan, Thailand
    1032.4×
  101. 101PurniaBihar, India
    1022.4×
  102. 102PāliRajasthan, India
    1022.4×
  103. 103MothīhāriBihar, India
    1012.4×
  104. 104KohimaNagaland, India
    1012.4×
  105. 104CoronelBiobio, Chile
    1012.4×
  106. 107RānipetTamil Nadu, India
    1002.4×
  107. 107NāgaurRajasthan, India
    1002.4×
  108. 107KhannaPunjab, India
    1002.4×
  109. 107PrayagrajUttar Pradesh, India
    1002.4×
  110. 111TiruchirappalliTamil Nadu, India
    1002.3×
  111. 112ChandigarhChandigarh, India
    992.3×
  112. 113NeelankaraiTamil Nadu, India
    992.3×
  113. 114GwaliorMadhya Pradesh, India
    992.3×
  114. 115Addis AbabaAddis Ababa, Ethiopia
    982.3×
  115. 115AlwarRajasthan, India
    982.3×
  116. 117MandideepMadhya Pradesh, India
    982.3×
  117. 118Mae SaiChiang Rai, Thailand
    982.3×
  118. 118Islamabadlow-cost sensorsIslamabad, Pakistan
    982.3×
  119. 120AurangabadMaharashtra, India
    972.2×
  120. 121KalyānMaharashtra, India
    972.2×
  121. 121KalaburagiKarnataka, India
    972.2×
  122. 123GayaBihar, India
    962.2×
  123. 124KotaRajasthan, India
    962.2×
  124. 124BhubaneswarOdisha, India
    962.2×
  125. 124ToméBiobio, Chile
    962.2×
  126. 124TemucoAraucania, Chile
    962.2×
  127. 128TirupatiAndhra Pradesh, India
    952.2×
  128. 128Goyang-siGyeonggi-do, South Korea
    952.2×
  129. 128BaddiHimachal Pradesh, India
    952.2×
  130. 131JalgaonMaharashtra, India
    952.2×
  131. 132DūngarpurRajasthan, India
    952.2×
  132. 133RatlāmMadhya Pradesh, India
    952.2×
  133. 133YeojuGyeonggi-do, South Korea
    952.2×
  134. 135Sawai MadhopurRajasthan, India
    942.2×
  135. 136ShillongMeghalaya, India
    932.1×
  136. 136KanchipuramTamil Nadu, India
    932.1×
  137. 136Puerto MonttLos Lagos Region, Chile
    932.1×
  138. 139KannurKerala, India
    932.1×
  139. 140Bucheon-siGyeonggi-do, South Korea
    932.1×
  140. 140Guri-siGyeonggi-do, South Korea
    932.1×
  141. 142ThāneMaharashtra, India
    932.1×
  142. 142ChāpraBihar, India
    932.1×
  143. 144SholapurMaharashtra, India
    932.1×
  144. 145SeoulSeoul, South Korea
    922.1×
  145. 146TirumalaAndhra Pradesh, India
    922.1×
  146. 147San CarlosÑuble, Chile
    922.1×
  147. 148Gimpo-siGyeonggi-do, South Korea
    922.1×
  148. 149BuxarBihar, India
    912.1×
  149. 149Uijeongbu-siGyeonggi-do, South Korea
    912.1×
  150. 149Ansan-siGyeonggi-do, South Korea
    912.1×
  151. 152ThrissurKerala, India
    902.0×
  152. 152LudhianaPunjab, India
    902.0×
  153. 154HualpénBiobio, Chile
    902.0×
  154. 155WŏnjuGangwon-do, South Korea
    902.0×
  155. 155Wadgaon KolhatiMaharashtra, India
    902.0×
  156. 157KarauliRajasthan, India
    902.0×
  157. 157GobindgarhPunjab, India
    902.0×
  158. 159Hwaseong-siGyeonggi-do, South Korea
    892.0×
  159. 160KadapaAndhra Pradesh, India
    892.0×
  160. 160GwangmyeongGyeonggi-do, South Korea
    892.0×
  161. 162DurgapurWest Bengal, India
    892.0×
  162. 163Samut SakhonSamut Sakhon, Thailand
    892.0×
  163. 164SalemTamil Nadu, India
    881.9×
  164. 164Anyang-siGyeonggi-do, South Korea
    881.9×
  165. 166CheorwonGangwon-do, South Korea
    881.9×
  166. 167HyderabadTelangana, India
    871.9×
  167. 168ChittorgarhRajasthan, India
    871.9×
  168. 168OsanGyeonggi-do, South Korea
    871.9×
  169. 170AsanChungcheongnam-do, South Korea
    871.9×
  170. 170KinzanChungcheongnam-do, South Korea
    871.9×
  171. 170Greater NoidaUttar Pradesh, India
    871.9×
  172. 173TangjinChungcheongnam-do, South Korea
    871.9×
  173. 173CauquenesMaule Region, Chile
    871.9×
  174. 175TepicNayarit, Mexico
    861.9×
  175. 176SiliguriWest Bengal, India
    861.9×
  176. 176FīrozābādUttar Pradesh, India
    861.9×
  177. 176IncheonIncheon, South Korea
    861.9×
  178. 176PubalGyeonggi-do, South Korea
    861.9×
  179. 180JodhpurRajasthan, India
    861.9×
  180. 181Santa Monicalow-cost sensorsCalifornia, United States
    861.8×
  181. 182JhālāwārRajasthan, India
    851.8×
  182. 182Quezon Citylow-cost sensorsNational Capital Region, Philippines
    851.8×
  183. 182SeonghwanChungcheongnam-do, South Korea
    851.8×
  184. 185KatiharBihar, India
    851.8×
  185. 185BhāgalpurBihar, India
    851.8×
  186. 185BānswāraRajasthan, India
    851.8×
  187. 185ChillánÑuble, Chile
    851.8×
  188. 189VrindāvanUttar Pradesh, India
    851.8×
  189. 190Icheon-siGyeonggi-do, South Korea
    841.8×
  190. 191Prince AlbertSaskatchewan, Canada
    841.8×
  191. 192Yangp'yŏngGyeonggi-do, South Korea
    831.8×
  192. 192PyeongtaekGyeonggi-do, South Korea
    831.8×
  193. 192GapyeongGyeonggi-do, South Korea
    831.8×
  194. 195YesanChungcheongnam-do, South Korea
    831.8×
  195. 195YangjuGyeonggi-do, South Korea
    831.8×
  196. 195SuwonGyeonggi-do, South Korea
    831.8×
  197. 195Ganghwa-gunIncheon, South Korea
    831.8×
  198. 199TambaramTamil Nadu, India
    831.8×
  199. 199JungpyongNorth Chungcheong, South Korea
    831.8×

Top 200 of 2,686 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, May 11, 2025, smogrank.com/history/2025-05-11 (accessed 2 Oct 2026).

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