SmogRank / History / June 21, 2025

Most polluted cities on June 21, 2025

2,644 cities ranked by their average PM2.5 over the day; the worst was Undera, India, at 219.0 µg/m³. Each city's own local calendar day.

← Undera 219.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for June 21, 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. 1UnderaGujarat, India
    29414.6×
  2. 2KarurTamil Nadu, India
    29114.4×
  3. 3KigaliKigali, Rwanda
    1806.4×
  4. 4LinaresMaule Region, Chile
    1705.5×
  5. 5Puerto VarasLos Lagos Region, Chile
    1695.4×
  6. 6CuricóMaule Region, Chile
    1695.4×
  7. 7NacimientoBiobio, Chile
    1675.2×
  8. 8BhilwaraRajasthan, India
    1665.1×
  9. 9TalaganteSantiago Metropolitan, Chile
    1604.6×
  10. 10Puerto AysénAysén, Chile
    1554.1×
  11. 11Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1544.0×
  12. 11RancaguaO'Higgins Region, Chile
    1544.0×
  13. 13RengoO'Higgins Region, Chile
    1544.0×
  14. 14Dubailow-cost sensorsDubai, United Arab Emirates
    1533.9×
  15. 15KhurjaUttar Pradesh, India
    1523.8×
  16. 16Rawalpindilow-cost sensorsPunjab, Pakistan
    1523.8×
  17. 17BhāgalpurBihar, India
    1523.8×
  18. 18TalcaMaule Region, Chile
    1523.8×
  19. 19SantiagoSantiago Metropolitan, Chile
    1513.7×
  20. 20Santa Anita - Los FicusLima region, Peru
    1503.7×
  21. 21CoronelBiobio, Chile
    1493.7×
  22. 21CauquenesMaule Region, Chile
    1493.7×
  23. 23Lahorelow-cost sensorsPunjab, Pakistan
    1483.6×
  24. 24La UniónLos Ríos Region, Chile
    1473.6×
  25. 25OsornoLos Lagos Region, Chile
    1463.6×
  26. 26GayaBihar, India
    1403.4×
  27. 27LoniUttar Pradesh, India
    1403.4×
  28. 28TiruppurTamil Nadu, India
    1403.4×
  29. 29KatiharBihar, India
    1393.4×
  30. 30SamāstipurBihar, India
    1383.4×
  31. 31Islamabadlow-cost sensorsIslamabad, Pakistan
    1373.3×
  32. 32CuranilahueBiobio, Chile
    1373.3×
  33. 33Los ÁngelesBiobio, Chile
    1363.3×
  34. 34DushanbeDushanbe, Tajikistan
    1353.3×
  35. 35Sialkotlow-cost sensorsPunjab, Pakistan
    1343.3×
  36. 36ValdiviaLos Ríos Region, Chile
    1343.3×
  37. 37NairobiNairobi County, Kenya
    1313.2×
  38. 38Puente AltoSantiago Metropolitan, Chile
    1313.2×
  39. 39LudhianaPunjab, India
    1303.2×
  40. 40QuilpuéValparaiso, Chile
    1283.1×
  41. 41Multanlow-cost sensorsPunjab, Pakistan
    1263.0×
  42. 42AmritsarPunjab, India
    1253.0×
  43. 43HualquiBiobio, Chile
    1253.0×
  44. 44CoquimboCoquimbo Region, Chile
    1243.0×
  45. 45VirārMaharashtra, India
    1243.0×
  46. 46BawānaDelhi, India
    1212.9×
  47. 46HualpénBiobio, Chile
    1212.9×
  48. 48GobindgarhPunjab, India
    1192.9×
  49. 49NarelaDelhi, India
    1152.7×
  50. 50BhelaiChhattisgarh, India
    1142.7×
  51. 51RourkelaOdisha, India
    1132.7×
  52. 52NoidaUttar Pradesh, India
    1122.7×
  53. 53ManamaManama, Bahrain
    1102.6×
  54. 53Puerto MonttLos Lagos Region, Chile
    1102.6×
  55. 55San CarlosÑuble, Chile
    1102.6×
  56. 56JakartaJakarta, Indonesia
    1092.6×
  57. 57NagaonAssam, India
    1092.6×
  58. 58DurgapurWest Bengal, India
    1082.6×
  59. 59TemucoAraucania, Chile
    1062.5×
  60. 60TooeleUtah, United States
    1052.5×
  61. 61RasapūdipalemAndhra Pradesh, India
    1052.5×
  62. 61GhāziābādUttar Pradesh, India
    1052.5×
  63. 63AnantapurAndhra Pradesh, India
    1052.5×
  64. 64HaldiaWest Bengal, India
    1032.4×
  65. 65ChillánÑuble, Chile
    1032.4×
  66. 66JaipurRajasthan, India
    1012.4×
  67. 66VillarricaAraucania, Chile
    1012.4×
  68. 68ByasanagarOdisha, India
    1012.4×
  69. 69La SerenaCoquimbo Region, Chile
    1002.4×
  70. 70TambaramTamil Nadu, India
    1002.4×
  71. 71NajafgarhDelhi, India
    992.3×
  72. 72GummidipundiTamil Nadu, India
    972.2×
  73. 73DelhiDelhi, India
    962.2×
  74. 74KolkataWest Bengal, India
    962.2×
  75. 75TalcahuanoBiobio, Chile
    962.2×
  76. 76JhālāwārRajasthan, India
    962.2×
  77. 76MexicaliBaja California, Mexico
    962.2×
  78. 78Bahawalpurlow-cost sensorsPunjab, Pakistan
    952.2×
  79. 78DūngarpurRajasthan, India
    952.2×
  80. 80KotaRajasthan, India
    942.1×
  81. 81VijayawadaAndhra Pradesh, India
    932.1×
  82. 81SaharsaBihar, India
    932.1×
  83. 83KhannaPunjab, India
    932.1×
  84. 83CoyhaiqueAysén, Chile
    932.1×
  85. 85PatnaBihar, India
    932.1×
  86. 85BulandshahrUttar Pradesh, India
    932.1×
  87. 87KannurKerala, India
    932.1×
  88. 88VigevanoLombardy, Italy
    922.1×
  89. 89JalandharPunjab, India
    922.1×
  90. 90TirupatiAndhra Pradesh, India
    922.1×
  91. 91Karachilow-cost sensorsSindh, Pakistan
    912.1×
  92. 91AjmerRajasthan, India
    912.1×
  93. 93NalbāriAssam, India
    912.0×
  94. 93AhmedabadGujarat, India
    912.0×
  95. 95Dera Colliery TownshipOdisha, India
    902.0×
  96. 96BaddiHimachal Pradesh, India
    902.0×
  97. 97ThāneMaharashtra, India
    902.0×
  98. 98CopiapóAtacama, Chile
    902.0×
  99. 99RairangpurOdisha, India
    892.0×
  100. 100QuinteroValparaiso, Chile
    892.0×
  101. 101HājīpurBihar, India
    892.0×
  102. 102CoimbatoreTamil Nadu, India
    892.0×
  103. 103ĀsansolWest Bengal, India
    881.9×
  104. 103Spanish ForkUtah, United States
    881.9×
  105. 105Greater NoidaUttar Pradesh, India
    881.9×
  106. 106OnomichiHiroshima, Japan
    881.9×
  107. 107ShrīrāmpurWest Bengal, India
    871.9×
  108. 108HyderabadTelangana, India
    871.9×
  109. 109BānswāraRajasthan, India
    861.9×
  110. 109ConcepciónBiobio, Chile
    861.9×
  111. 111TonkRajasthan, India
    861.9×
  112. 111QuthbullapurTelangana, India
    861.9×
  113. 113AntofagastaAntofagasta, Chile
    851.8×
  114. 113San Pedro de la PazBiobio, Chile
    851.8×
  115. 115DewasMadhya Pradesh, India
    851.8×
  116. 116FairbanksAlaska, United States
    851.8×
  117. 117ChandigarhChandigarh, India
    841.8×
  118. 117BadgerAlaska, United States
    841.8×
  119. 119RānīganjWest Bengal, India
    841.8×
  120. 119AurangabadMaharashtra, India
    841.8×
  121. 119Shin’ichiHiroshima, Japan
    841.8×
  122. 122CholulaPuebla, Mexico
    841.8×
  123. 123BengaluruKarnataka, India
    831.8×
  124. 124Quettalow-cost sensorsBalochistan, Pakistan
    831.7×
  125. 125ThrissurKerala, India
    821.7×
  126. 125Sydneylow-cost sensorsNew South Wales, Australia
    821.7×
  127. 127HāpurUttar Pradesh, India
    821.7×
  128. 128NipomoCalifornia, United States
    821.7×
  129. 129BadlapurMaharashtra, India
    821.7×
  130. 130JaisalmerRajasthan, India
    821.7×
  131. 130Collado-VillalbaMadrid, Spain
    821.7×
  132. 130SingrauliMadhya Pradesh, India
    821.7×
  133. 133ChiguayanteBiobio, Chile
    821.7×
  134. 134Viña del MarValparaiso, Chile
    811.7×
  135. 135BeppuOita, Japan
    801.7×
  136. 135MatsuyamaEhime, Japan
    801.7×
  137. 137CuttackOdisha, India
    801.6×
  138. 138Ōdachō-ōdaShimane, Japan
    801.6×
  139. 138NiihamaEhime, Japan
    801.6×
  140. 140UwajimaEhime, Japan
    801.6×
  141. 140ImabariEhime, Japan
    801.6×
  142. 142KalyānMaharashtra, India
    791.6×
  143. 143ChennaiTamil Nadu, India
    791.6×
  144. 144LucknowUttar Pradesh, India
    791.6×
  145. 144IzumoShimane, Japan
    791.6×
  146. 146DhaulpurRajasthan, India
    791.6×
  147. 146SaijōEhime, Japan
    791.6×
  148. 148BelpaharOdisha, India
    791.6×
  149. 149AlessandriaPiedmont, Italy
    781.6×
  150. 149RangioraCanterbury, New Zealand
    781.6×
  151. 151CalexicoCalifornia, United States
    781.6×
  152. 152YasugichōShimane, Japan
    781.6×
  153. 152NiimiOkayama, Japan
    781.6×
  154. 154YonagoTottori, Japan
    781.6×
  155. 154LimaLima Province, Peru
    781.6×
  156. 156BathindaPunjab, India
    771.6×
  157. 156MohaliPunjab, India
    771.6×
  158. 156NeelankaraiTamil Nadu, India
    771.6×
  159. 159BārānRajasthan, India
    771.5×
  160. 159YaeHiroshima, Japan
    771.5×
  161. 161TiruchirappalliTamil Nadu, India
    771.5×
  162. 161SakaiminatoTottori, Japan
    771.5×
  163. 161VercelliPiedmont, Italy
    771.5×
  164. 164BhubaneswarOdisha, India
    771.5×
  165. 164Roi EtRoi Et, Thailand
    771.5×
  166. 164Quezon Citylow-cost sensorsNational Capital Region, Philippines
    771.5×
  167. 164YawatahamaEhime, Japan
    771.5×
  168. 168UozuToyama, Japan
    771.5×
  169. 168ItoigawaNiigata, Japan
    771.5×
  170. 168FukuyamaHiroshima, Japan
    771.5×
  171. 168ManlleuCatalonia, Spain
    771.5×
  172. 168CallaoCallao, Peru
    771.5×
  173. 173Sri GanganagarRajasthan, India
    771.5×
  174. 173Torrejón de ArdozMadrid, Spain
    771.5×
  175. 173Arroyo GrandeCalifornia, United States
    771.5×
  176. 176GandhinagarGujarat, India
    761.5×
  177. 177TakeharaHiroshima, Japan
    761.5×
  178. 177NaplesCampania, Italy
    761.5×
  179. 179Dera MāndiDelhi, India
    761.5×
  180. 179IyoEhime, Japan
    761.5×
  181. 181PatiālaPunjab, India
    761.5×
  182. 181MiharaHiroshima, Japan
    761.5×
  183. 181IndioCalifornia, United States
    761.5×
  184. 184VijayapuraKarnataka, India
    751.5×
  185. 184KurayoshiTottori, Japan
    751.5×
  186. 184AshburtonCanterbury, New Zealand
    751.5×
  187. 187Istanbullow-cost sensorsIstanbul, Turkey
    751.5×
  188. 187BhiwandiMaharashtra, India
    751.5×
  189. 189SilcharAssam, India
    751.5×
  190. 189PratāpgarhRajasthan, India
    751.5×
  191. 189YamaguchiYamaguchi, Japan
    751.5×
  192. 189Gasteiz / VitoriaBasque Country, Spain
    751.5×
  193. 189PithampurMadhya Pradesh, India
    751.5×
  194. 189KhargharMaharashtra, India
    751.5×
  195. 195NyūzenToyama, Japan
    751.5×
  196. 195ToméBiobio, Chile
    751.5×
  197. 195BhiwadiRajasthan, India
    751.5×
  198. 198NagpurMaharashtra, India
    751.5×
  199. 198SocorroTexas, United States
    751.5×
  200. 198OremUtah, United States
    751.5×

Top 200 of 2,644 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, June 21, 2025, smogrank.com/history/2025-06-21 (accessed 3 Oct 2026).

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