SmogRank / History / August 5, 2025

Most polluted cities on August 5, 2025

2,570 cities ranked by their average PM2.5 over the day; the worst was Ooty, India, at 669.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during August 5, 2025. All episodes.

← Ooty 669.0 µg/m³ 600 µg/m³15 WHO 24-hour guideline
Every city ranked for August 5, 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. 1OotyTamil Nadu, India
    500+44.6×
  2. 2LudhianaPunjab, India
    2038.5×
  3. 3NacimientoBiobio, Chile
    1917.5×
  4. 4HualpénBiobio, Chile
    1907.4×
  5. 5Sri GanganagarRajasthan, India
    1836.7×
  6. 6Los ÁngelesBiobio, Chile
    1836.7×
  7. 7KigaliKigali, Rwanda
    1806.5×
  8. 8ChillánÑuble, Chile
    1796.4×
  9. 9CoyhaiqueAysén, Chile
    1776.1×
  10. 10LinaresMaule Region, Chile
    1735.8×
  11. 11CuranilahueBiobio, Chile
    1645.0×
  12. 12OsornoLos Lagos Region, Chile
    1644.9×
  13. 13TemucoAraucania, Chile
    1624.7×
  14. 14VillarricaAraucania, Chile
    1564.2×
  15. 15JodaOdisha, India
    1544.0×
  16. 16RengoO'Higgins Region, Chile
    1533.9×
  17. 17QuilpuéValparaiso, Chile
    1533.9×
  18. 18TalcahuanoBiobio, Chile
    1503.7×
  19. 19Bihār SharīfBihar, India
    1503.7×
  20. 20ManamaManama, Bahrain
    1493.7×
  21. 21RancaguaO'Higgins Region, Chile
    1433.5×
  22. 22Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    1433.5×
  23. 23TalaganteSantiago Metropolitan, Chile
    1413.5×
  24. 24ChāndaMaharashtra, India
    1373.4×
  25. 25CoronelBiobio, Chile
    1373.3×
  26. 26AlbanyNew York, United States
    1363.3×
  27. 27Iloilolow-cost sensorsWestern Visayas, Philippines
    1353.3×
  28. 28KalyānMaharashtra, India
    1353.3×
  29. 28Green BayWisconsin, United States
    1353.3×
  30. 30Oconomowoclow-cost sensorsWisconsin, United States
    1343.3×
  31. 31MilwaukeeWisconsin, United States
    1343.2×
  32. 32TalcaMaule Region, Chile
    1333.2×
  33. 33RamanathapuramTamil Nadu, India
    1303.1×
  34. 34ValdiviaLos Ríos Region, Chile
    1283.1×
  35. 35PatancheruTelangana, India
    1273.1×
  36. 36HyderabadTelangana, India
    1263.1×
  37. 37SpringfieldMassachusetts, United States
    1253.0×
  38. 38HartfordConnecticut, United States
    1253.0×
  39. 39SangāreddiTelangana, India
    1243.0×
  40. 39HualquiBiobio, Chile
    1243.0×
  41. 41PittsfieldMassachusetts, United States
    1243.0×
  42. 42SantiagoSantiago Metropolitan, Chile
    1233.0×
  43. 42SuperiorWisconsin, United States
    1233.0×
  44. 44ConcepciónBiobio, Chile
    1222.9×
  45. 45YamanashiYamanashi, Japan
    1222.9×
  46. 46ChittoorAndhra Pradesh, India
    1222.9×
  47. 47San Pedro de la PazBiobio, Chile
    1212.9×
  48. 48AppletonWisconsin, United States
    1212.9×
  49. 49Greater NoidaUttar Pradesh, India
    1202.9×
  50. 50South MilwaukeeWisconsin, United States
    1192.9×
  51. 51Grand RapidsMichigan, United States
    1192.9×
  52. 52BarbilOdisha, India
    1192.8×
  53. 53LansingMichigan, United States
    1182.8×
  54. 54Islamabadlow-cost sensorsIslamabad, Pakistan
    1172.8×
  55. 54Puerto MonttLos Lagos Region, Chile
    1172.8×
  56. 56KalamazooMichigan, United States
    1172.8×
  57. 57MuzaffarnagarUttar Pradesh, India
    1162.8×
  58. 58ChāpraBihar, India
    1162.8×
  59. 59Quezon Citylow-cost sensorsNational Capital Region, Philippines
    1152.7×
  60. 59ScrantonPennsylvania, United States
    1152.7×
  61. 61VijayawadaAndhra Pradesh, India
    1142.7×
  62. 62GreenfieldMassachusetts, United States
    1132.7×
  63. 63DanburyConnecticut, United States
    1132.7×
  64. 64MothīhāriBihar, India
    1122.7×
  65. 64MarquetteMichigan, United States
    1122.7×
  66. 66BrantfordOntario, Canada
    1122.7×
  67. 67Sault Ste. MarieOntario, Canada
    1122.7×
  68. 67WindsorOntario, Canada
    1122.7×
  69. 69DurgapurWest Bengal, India
    1112.6×
  70. 70ZionIllinois, United States
    1112.6×
  71. 71North ChicopeeMassachusetts, United States
    1102.6×
  72. 72Rawalpindilow-cost sensorsPunjab, Pakistan
    1102.6×
  73. 72ChiguayanteBiobio, Chile
    1102.6×
  74. 72KeeneNew Hampshire, United States
    1102.6×
  75. 75SaugorMadhya Pradesh, India
    1102.6×
  76. 75RochesterNew York, United States
    1102.6×
  77. 77JenisonMichigan, United States
    1092.6×
  78. 77SingrauliMadhya Pradesh, India
    1092.6×
  79. 79AmīnpurTelangana, India
    1092.6×
  80. 80BuffaloNew York, United States
    1092.6×
  81. 81Lexingtonlow-cost sensorsMassachusetts, United States
    1092.6×
  82. 81NewmarketOntario, Canada
    1092.6×
  83. 83WaterburyConnecticut, United States
    1082.6×
  84. 84SyracuseNew York, United States
    1082.6×
  85. 85Puerto VarasLos Lagos Region, Chile
    1082.6×
  86. 86AnantapurAndhra Pradesh, India
    1082.5×
  87. 87JakartaJakarta, Indonesia
    1072.5×
  88. 88BuxarBihar, India
    1072.5×
  89. 88TocopillaAntofagasta, Chile
    1072.5×
  90. 88KitchenerOntario, Canada
    1072.5×
  91. 91NandedMaharashtra, India
    1062.5×
  92. 91BhiwadiRajasthan, India
    1062.5×
  93. 93SarniaOntario, Canada
    1062.5×
  94. 94DushanbeDushanbe, Tajikistan
    1062.5×
  95. 95WyomingMichigan, United States
    1052.5×
  96. 96ToméBiobio, Chile
    1052.5×
  97. 97JhānsiUttar Pradesh, India
    1042.5×
  98. 97San Francisco De BorjaLima region, Peru
    1042.5×
  99. 99RourkelaOdisha, India
    1042.4×
  100. 100WaukeshaWisconsin, United States
    1042.4×
  101. 100MiltonOntario, Canada
    1042.4×
  102. 102PithampurMadhya Pradesh, India
    1032.4×
  103. 103KanchipuramTamil Nadu, India
    1032.4×
  104. 103BelpaharOdisha, India
    1032.4×
  105. 105Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1032.4×
  106. 105GūduvāncheriTamil Nadu, India
    1032.4×
  107. 105HollandMichigan, United States
    1032.4×
  108. 108Port HuronMichigan, United States
    1022.4×
  109. 109MandideepMadhya Pradesh, India
    1022.4×
  110. 110BānswāraRajasthan, India
    1022.4×
  111. 110BramptonOntario, Canada
    1022.4×
  112. 112Gujranwalalow-cost sensorsPunjab, Pakistan
    1022.4×
  113. 112DetroitMichigan, United States
    1022.4×
  114. 114AngulOdisha, India
    1012.4×
  115. 114ElkhartIndiana, United States
    1012.4×
  116. 114New CityNew York, United States
    1012.4×
  117. 117GummidipundiTamil Nadu, India
    1002.4×
  118. 117KadapaAndhra Pradesh, India
    1002.4×
  119. 117NewburghNew York, United States
    1002.4×
  120. 120SouthfieldMichigan, United States
    1002.3×
  121. 120ToledoOhio, United States
    1002.3×
  122. 120TorontoOntario, Canada
    1002.3×
  123. 124AllistonOntario, Canada
    992.3×
  124. 125MilfordMassachusetts, United States
    992.3×
  125. 126TonkRajasthan, India
    992.3×
  126. 127BawānaDelhi, India
    982.3×
  127. 127RutlandVermont, United States
    982.3×
  128. 129JaipurRajasthan, India
    982.3×
  129. 129KofuYamanashi, Japan
    982.3×
  130. 129Fort WayneIndiana, United States
    982.3×
  131. 129DearbornMichigan, United States
    982.3×
  132. 133GhāziābādUttar Pradesh, India
    972.3×
  133. 133WorcesterMassachusetts, United States
    972.3×
  134. 133Bay CityMichigan, United States
    972.3×
  135. 133St. CatharinesOntario, Canada
    972.3×
  136. 137BarrieOntario, Canada
    972.3×
  137. 138Puente AltoSantiago Metropolitan, Chile
    972.2×
  138. 138New HavenConnecticut, United States
    972.2×
  139. 140KannurKerala, India
    972.2×
  140. 140YpsilantiMichigan, United States
    972.2×
  141. 142ConcónValparaiso, Chile
    962.2×
  142. 143LondonOntario, Canada
    962.2×
  143. 144PāliRajasthan, India
    962.2×
  144. 144Lincoln ParkMichigan, United States
    962.2×
  145. 146NagaonAssam, India
    962.2×
  146. 147Michigan CityIndiana, United States
    962.2×
  147. 148HamiltonOntario, Canada
    962.2×
  148. 149HājīpurBihar, India
    952.2×
  149. 149Elmwood ParkIllinois, United States
    952.2×
  150. 149BaddiHimachal Pradesh, India
    952.2×
  151. 152Addis AbabaAddis Ababa, Ethiopia
    952.2×
  152. 152Temalow-cost sensorsGreater Accra, Ghana
    952.2×
  153. 152Ann Arborlow-cost sensorsMichigan, United States
    952.2×
  154. 152New York CityNew York, United States
    952.2×
  155. 156Puerto AysénAysén, Chile
    952.2×
  156. 156DoltonIllinois, United States
    952.2×
  157. 156South BendIndiana, United States
    952.2×
  158. 159DuluthMinnesota, United States
    952.2×
  159. 160RandolphNew Jersey, United States
    952.2×
  160. 161ChicagoIllinois, United States
    942.2×
  161. 161Franklin ParkIllinois, United States
    942.2×
  162. 163SerilingampalleTelangana, India
    942.1×
  163. 164MexicaliBaja California, Mexico
    942.1×
  164. 164Des PlainesIllinois, United States
    942.1×
  165. 166OyamaTochigi, Japan
    932.1×
  166. 166KanumaTochigi, Japan
    932.1×
  167. 168OakvilleOntario, Canada
    932.1×
  168. 169RasapūdipalemAndhra Pradesh, India
    932.1×
  169. 170SanoTochigi, Japan
    932.1×
  170. 170QuinteroValparaiso, Chile
    932.1×
  171. 170PortageIndiana, United States
    932.1×
  172. 170TaylorMichigan, United States
    932.1×
  173. 174Fort LeeNew Jersey, United States
    932.1×
  174. 175BridgeportConnecticut, United States
    922.1×
  175. 175St. ThomasOntario, Canada
    922.1×
  176. 175Santa Anita - Los FicusLima region, Peru
    922.1×
  177. 178KhannaPunjab, India
    922.1×
  178. 178TatebayashiGunma, Japan
    922.1×
  179. 178CauquenesMaule Region, Chile
    922.1×
  180. 178East ChicagoIndiana, United States
    922.1×
  181. 182DausaRajasthan, India
    922.1×
  182. 182UticaNew York, United States
    922.1×
  183. 184DhaulpurRajasthan, India
    922.1×
  184. 184KōnosuSaitama, Japan
    922.1×
  185. 184White PlainsNew York, United States
    922.1×
  186. 187Faisalabadlow-cost sensorsPunjab, Pakistan
    922.1×
  187. 187ArāriaBihar, India
    922.1×
  188. 189Viña del MarValparaiso, Chile
    912.1×
  189. 189BridgeviewIllinois, United States
    912.1×
  190. 189HammondIndiana, United States
    912.1×
  191. 189ChikuseiIbaraki, Japan
    912.1×
  192. 193AgeoSaitama, Japan
    912.0×
  193. 194Sialkotlow-cost sensorsPunjab, Pakistan
    912.0×
  194. 195Lahorelow-cost sensorsPunjab, Pakistan
    912.0×
  195. 195LebanonPennsylvania, United States
    912.0×
  196. 195NasukarasuyamaTochigi, Japan
    912.0×
  197. 198EastpointeMichigan, United States
    912.0×
  198. 198Pasadenalow-cost sensorsCalifornia, United States
    912.0×
  199. 200DhuleMaharashtra, India
    902.0×

Top 200 of 2,570 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

Use this board

SmogRank, most polluted cities, PM2.5, August 5, 2025, smogrank.com/history/2025-08-05 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.