SmogRank / History / August 12, 2025

Most polluted cities on August 12, 2025

2,579 cities ranked by their average PM2.5 over the day; the worst was Nagapattinam, India, at 287.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during August 12, 2025. All episodes.

← Nagapattinam 287.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for August 12, 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
    42419.1×
  2. 2BathindaPunjab, India
    26312.5×
  3. 3LudhianaPunjab, India
    1947.8×
  4. 4DhaulpurRajasthan, India
    1856.9×
  5. 5AjmerRajasthan, India
    1776.2×
  6. 6BhāgalpurBihar, India
    1705.5×
  7. 7JodaOdisha, India
    1685.4×
  8. 8CoyhaiqueAysén, Chile
    1655.0×
  9. 9Sri GanganagarRajasthan, India
    1655.0×
  10. 10AurangābādBihar, India
    1624.7×
  11. 11KigaliKigali, Rwanda
    1584.4×
  12. 12GummidipundiTamil Nadu, India
    1584.3×
  13. 13GayaBihar, India
    1564.2×
  14. 14CuricóMaule Region, Chile
    1533.9×
  15. 15Puerto AysénAysén, Chile
    1533.9×
  16. 16Bihār SharīfBihar, India
    1513.7×
  17. 17DushanbeDushanbe, Tajikistan
    1493.7×
  18. 18Puerto VarasLos Lagos Region, Chile
    1453.5×
  19. 19TalaganteSantiago Metropolitan, Chile
    1443.5×
  20. 20ChittoorAndhra Pradesh, India
    1433.5×
  21. 21Gujranwalalow-cost sensorsPunjab, Pakistan
    1413.4×
  22. 22SamāstipurBihar, India
    1393.4×
  23. 23LeónCastille and León, Spain
    1373.4×
  24. 24RourkelaOdisha, India
    1373.3×
  25. 25Faisalabadlow-cost sensorsPunjab, Pakistan
    1363.3×
  26. 25BelpaharOdisha, India
    1363.3×
  27. 27Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1343.3×
  28. 28SantiagoSantiago Metropolitan, Chile
    1303.2×
  29. 29Dera Colliery TownshipOdisha, India
    1303.1×
  30. 30RānīganjWest Bengal, India
    1283.1×
  31. 31ĀsansolWest Bengal, India
    1263.0×
  32. 32LinaresMaule Region, Chile
    1263.0×
  33. 33DurgapurWest Bengal, India
    1253.0×
  34. 34Lahorelow-cost sensorsPunjab, Pakistan
    1243.0×
  35. 34JakartaJakarta, Indonesia
    1243.0×
  36. 36BarbilOdisha, India
    1233.0×
  37. 37Rawalpindilow-cost sensorsPunjab, Pakistan
    1222.9×
  38. 38TalcaMaule Region, Chile
    1212.9×
  39. 39Greater NoidaUttar Pradesh, India
    1202.9×
  40. 40Islamabadlow-cost sensorsIslamabad, Pakistan
    1202.9×
  41. 40ByasanagarOdisha, India
    1202.9×
  42. 42PāliRajasthan, India
    1202.9×
  43. 42PonferradaCastille and León, Spain
    1202.9×
  44. 44NalbāriAssam, India
    1192.9×
  45. 45Santa LucíaCanary Islands, Spain
    1192.9×
  46. 46HājīpurBihar, India
    1182.8×
  47. 47KadapaAndhra Pradesh, India
    1172.8×
  48. 48MóstolesMadrid, Spain
    1152.7×
  49. 49San CarlosÑuble, Chile
    1132.7×
  50. 49MankatoMinnesota, United States
    1132.7×
  51. 51ManamaManama, Bahrain
    1132.7×
  52. 52MothīhāriBihar, India
    1122.7×
  53. 53AngulOdisha, India
    1122.7×
  54. 54JhānsiUttar Pradesh, India
    1112.6×
  55. 55FuenlabradaMadrid, Spain
    1102.6×
  56. 56Puerto MonttLos Lagos Region, Chile
    1082.5×
  57. 57BuxarBihar, India
    1072.5×
  58. 57ChillánÑuble, Chile
    1072.5×
  59. 59Sialkotlow-cost sensorsPunjab, Pakistan
    1062.5×
  60. 60KarauliRajasthan, India
    1052.5×
  61. 60BawānaDelhi, India
    1052.5×
  62. 60NavalpattuTamil Nadu, India
    1052.5×
  63. 63SaharsaBihar, India
    1052.5×
  64. 64RengoO'Higgins Region, Chile
    1052.5×
  65. 65RasapūdipalemAndhra Pradesh, India
    1052.5×
  66. 65KatiharBihar, India
    1052.5×
  67. 67VijayawadaAndhra Pradesh, India
    1042.5×
  68. 68MorādābādUttar Pradesh, India
    1032.4×
  69. 69ChāpraBihar, India
    1012.4×
  70. 70TirupparangunramTamil Nadu, India
    1012.4×
  71. 70Puente AltoSantiago Metropolitan, Chile
    1012.4×
  72. 72ChāndaMaharashtra, India
    1002.4×
  73. 73La UniónLos Ríos Region, Chile
    1002.4×
  74. 73BhiwadiRajasthan, India
    1002.4×
  75. 75GūduvāncheriTamil Nadu, India
    1002.3×
  76. 75OsornoLos Lagos Region, Chile
    1002.3×
  77. 77TiruchirappalliTamil Nadu, India
    992.3×
  78. 77BhiwandiMaharashtra, India
    992.3×
  79. 79DādriUttar Pradesh, India
    992.3×
  80. 80MuzaffarpurBihar, India
    992.3×
  81. 80BānswāraRajasthan, India
    992.3×
  82. 82MandideepMadhya Pradesh, India
    972.3×
  83. 83NacimientoBiobio, Chile
    972.2×
  84. 83NoidaUttar Pradesh, India
    972.2×
  85. 85NagaonAssam, India
    962.2×
  86. 85GhāziābādUttar Pradesh, India
    962.2×
  87. 85RancaguaO'Higgins Region, Chile
    962.2×
  88. 88QuilpuéValparaiso, Chile
    962.2×
  89. 89TonkRajasthan, India
    952.2×
  90. 90Multanlow-cost sensorsPunjab, Pakistan
    942.2×
  91. 91PithampurMadhya Pradesh, India
    942.1×
  92. 92VapiGujarat, India
    942.1×
  93. 93JaipurRajasthan, India
    932.1×
  94. 94ArāriaBihar, India
    922.1×
  95. 94Fort McMurrayAlberta, Canada
    922.1×
  96. 96Quezon Citylow-cost sensorsNational Capital Region, Philippines
    922.1×
  97. 97Le LamentinMartinique, Martinique
    912.1×
  98. 98PurniaBihar, India
    912.0×
  99. 99DelhiDelhi, India
    912.0×
  100. 100PratāpgarhRajasthan, India
    902.0×
  101. 100ConcónValparaiso, Chile
    902.0×
  102. 102Winterthurlow-cost sensorsZurich, Switzerland
    902.0×
  103. 103Fort-de-FranceMartinique, Martinique
    902.0×
  104. 104AlangadKerala, India
    902.0×
  105. 105DhuleMaharashtra, India
    902.0×
  106. 106ManlleuCatalonia, Spain
    892.0×
  107. 106VillarricaAraucania, Chile
    892.0×
  108. 108MuzaffarnagarUttar Pradesh, India
    892.0×
  109. 109BulandshahrUttar Pradesh, India
    881.9×
  110. 109CholulaPuebla, Mexico
    881.9×
  111. 111KalyānMaharashtra, India
    871.9×
  112. 112JumillaMurcia, Spain
    871.9×
  113. 113DausaRajasthan, India
    871.9×
  114. 114CuranilahueBiobio, Chile
    861.9×
  115. 115MalegaonMaharashtra, India
    861.9×
  116. 115Le RobertMartinique, Martinique
    861.9×
  117. 117BurnsvilleMinnesota, United States
    861.8×
  118. 118SilcharAssam, India
    851.8×
  119. 119Addis AbabaAddis Ababa, Ethiopia
    851.8×
  120. 120PaviaLombardy, Italy
    851.8×
  121. 120Les AbymesGuadeloupe, Guadeloupe
    851.8×
  122. 120QuinteroValparaiso, Chile
    851.8×
  123. 123ChittorgarhRajasthan, India
    851.8×
  124. 124Lexingtonlow-cost sensorsMassachusetts, United States
    841.8×
  125. 125Viña del MarValparaiso, Chile
    841.8×
  126. 126MangaluruKarnataka, India
    841.8×
  127. 126BaripādaOdisha, India
    841.8×
  128. 128NarelaDelhi, India
    831.8×
  129. 128Winnipeglow-cost sensorsManitoba, Canada
    831.8×
  130. 130GuwahatiAssam, India
    831.7×
  131. 130Taguiglow-cost sensorsNational Capital Region, Philippines
    831.7×
  132. 130San Francisco TlalcilalcalpanMéxico, Mexico
    831.7×
  133. 133NagpurMaharashtra, India
    831.7×
  134. 134UdaipurRajasthan, India
    821.7×
  135. 135VrindāvanUttar Pradesh, India
    821.7×
  136. 135SligoConnacht, Ireland
    821.7×
  137. 135Grand JunctionColorado, United States
    821.7×
  138. 138BhopalMadhya Pradesh, India
    821.7×
  139. 139GwaliorMadhya Pradesh, India
    811.7×
  140. 139AcerraCampania, Italy
    811.7×
  141. 139AntofagastaAntofagasta, Chile
    811.7×
  142. 142CandelariaCanary Islands, Spain
    811.7×
  143. 143AmritsarPunjab, India
    811.7×
  144. 143ShakopeeMinnesota, United States
    811.7×
  145. 145ThrissurKerala, India
    811.7×
  146. 145DūngarpurRajasthan, India
    811.7×
  147. 147SangāreddiTelangana, India
    811.7×
  148. 147PatnaBihar, India
    811.7×
  149. 147KolkataWest Bengal, India
    811.7×
  150. 147LleidaCatalonia, Spain
    811.7×
  151. 147VigevanoLombardy, Italy
    811.7×
  152. 152Mollet del VallèsCatalonia, Spain
    801.7×
  153. 153La SerenaCoquimbo Region, Chile
    801.6×
  154. 154MadridMadrid, Spain
    801.6×
  155. 155SalemTamil Nadu, India
    801.6×
  156. 155HuelvaAndalusia, Spain
    801.6×
  157. 157HaldiaWest Bengal, India
    791.6×
  158. 157PalenciaCastille and León, Spain
    791.6×
  159. 159RajamahendravaramAndhra Pradesh, India
    791.6×
  160. 160JalgaonMaharashtra, India
    791.6×
  161. 161SrinagarJammu and Kashmir, India
    791.6×
  162. 161MungerBihar, India
    791.6×
  163. 161Changchunlow-cost sensorsJilin, China
    791.6×
  164. 161NaplesCampania, Italy
    791.6×
  165. 165Iloilolow-cost sensorsWestern Visayas, Philippines
    791.6×
  166. 165Gasteiz / VitoriaBasque Country, Spain
    791.6×
  167. 167TambaramTamil Nadu, India
    781.6×
  168. 167JhālāwārRajasthan, India
    781.6×
  169. 167CoronelBiobio, Chile
    781.6×
  170. 167Prince AlbertSaskatchewan, Canada
    781.6×
  171. 171CauquenesMaule Region, Chile
    781.6×
  172. 172Apple ValleyMinnesota, United States
    781.6×
  173. 173Karachilow-cost sensorsSindh, Pakistan
    781.6×
  174. 173KhannaPunjab, India
    781.6×
  175. 173OriaBasque Country, Spain
    781.6×
  176. 176Sawai MadhopurRajasthan, India
    781.6×
  177. 176BolzanoTrentino-Alto Adige, Italy
    781.6×
  178. 176QuillotaValparaiso, Chile
    781.6×
  179. 179ShrīrāmpurWest Bengal, India
    771.6×
  180. 180BarcelonaCatalonia, Spain
    771.5×
  181. 181JhunjhunūnRajasthan, India
    771.5×
  182. 182Istanbullow-cost sensorsIstanbul, Turkey
    771.5×
  183. 182JalandharPunjab, India
    771.5×
  184. 184BāghpatUttar Pradesh, India
    771.5×
  185. 184InnsbruckTyrol, Austria
    771.5×
  186. 186RatlāmMadhya Pradesh, India
    771.5×
  187. 186BellinzonaTicino, Switzerland
    771.5×
  188. 188Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    761.5×
  189. 188TrentoTrentino-Alto Adige, Italy
    761.5×
  190. 188MinneapolisMinnesota, United States
    761.5×
  191. 191ZarautzBasque Country, Spain
    761.5×
  192. 191NovaraPiedmont, Italy
    761.5×
  193. 191AlessandriaPiedmont, Italy
    761.5×
  194. 191Saint PaulMinnesota, United States
    761.5×
  195. 195ValdemoroMadrid, Spain
    761.5×
  196. 195AmorebietaBasque Country, Spain
    761.5×
  197. 197JaénAndalusia, Spain
    751.5×
  198. 197XonacatlánMéxico, Mexico
    751.5×
  199. 197YumaArizona, United States
    751.5×
  200. 200HāpurUttar Pradesh, India
    751.5×

Top 200 of 2,579 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, August 12, 2025, smogrank.com/history/2025-08-12 (accessed 2 Oct 2026).

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