SmogRank / History / July 26, 2025

Most polluted cities on July 26, 2025

2,474 cities ranked by their average PM2.5 over the day; the worst was San Carlos, Chile, at 92.3 µg/m³. Each city's own local calendar day.

Bad-air episodes during July 26, 2025. All episodes.

← San Carlos 92.3 µg/m³ 90 µg/m³15 WHO 24-hour guideline
Every city ranked for July 26, 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. 1San CarlosÑuble, Chile
    1776.2×
  2. 2CoyhaiqueAysén, Chile
    1756.0×
  3. 3ArāriaBihar, India
    1745.9×
  4. 4Sorel-TracyQuebec, Canada
    1745.9×
  5. 5ManamaManama, Bahrain
    1735.8×
  6. 6ChillánÑuble, Chile
    1725.7×
  7. 7Sri GanganagarRajasthan, India
    1715.6×
  8. 8MontréalQuebec, Canada
    1705.5×
  9. 9GranbyQuebec, Canada
    1695.4×
  10. 10LinaresMaule Region, Chile
    1695.4×
  11. 11DorvalQuebec, Canada
    1685.3×
  12. 12Trois-RivièresQuebec, Canada
    1675.2×
  13. 13TalaganteSantiago Metropolitan, Chile
    1665.2×
  14. 14DrummondvilleQuebec, Canada
    1665.2×
  15. 15SherbrookeQuebec, Canada
    1665.1×
  16. 16KigaliKigali, Rwanda
    1655.1×
  17. 17Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    1634.9×
  18. 18ShawiniganQuebec, Canada
    1634.8×
  19. 19NacimientoBiobio, Chile
    1624.8×
  20. 20BrossardQuebec, Canada
    1624.7×
  21. 21Los ÁngelesBiobio, Chile
    1614.7×
  22. 22BārānRajasthan, India
    1584.4×
  23. 23CuricóMaule Region, Chile
    1584.3×
  24. 24Gujranwalalow-cost sensorsPunjab, Pakistan
    1584.3×
  25. 25Saint-Jean-sur-RichelieuQuebec, Canada
    1564.2×
  26. 26Lahorelow-cost sensorsPunjab, Pakistan
    1554.1×
  27. 27Faisalabadlow-cost sensorsPunjab, Pakistan
    1554.1×
  28. 28RancaguaO'Higgins Region, Chile
    1544.0×
  29. 29SantiagoSantiago Metropolitan, Chile
    1544.0×
  30. 30RengoO'Higgins Region, Chile
    1533.9×
  31. 31L'Ancienne-LoretteQuebec, Canada
    1533.9×
  32. 32LudhianaPunjab, India
    1523.8×
  33. 33OsornoLos Lagos Region, Chile
    1513.7×
  34. 34QuébecQuebec, Canada
    1483.6×
  35. 35JakartaJakarta, Indonesia
    1463.6×
  36. 36Puente AltoSantiago Metropolitan, Chile
    1423.5×
  37. 37Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1403.4×
  38. 38DushanbeDushanbe, Tajikistan
    1393.4×
  39. 39Multanlow-cost sensorsPunjab, Pakistan
    1373.4×
  40. 40SangāreddiTelangana, India
    1353.3×
  41. 40Puerto VarasLos Lagos Region, Chile
    1353.3×
  42. 42Sialkotlow-cost sensorsPunjab, Pakistan
    1353.3×
  43. 43AlbanyNew York, United States
    1313.2×
  44. 44Changchunlow-cost sensorsJilin, China
    1273.1×
  45. 45RutlandVermont, United States
    1273.1×
  46. 46HualpénBiobio, Chile
    1212.9×
  47. 47LoniUttar Pradesh, India
    1202.9×
  48. 48SpringfieldMassachusetts, United States
    1182.8×
  49. 49TalcaMaule Region, Chile
    1182.8×
  50. 50PithampurMadhya Pradesh, India
    1172.8×
  51. 51PittsfieldMassachusetts, United States
    1172.8×
  52. 52DanburyConnecticut, United States
    1152.7×
  53. 53MarquetteMichigan, United States
    1142.7×
  54. 54Gadag-BetageriKarnataka, India
    1132.7×
  55. 55VijayawadaAndhra Pradesh, India
    1122.7×
  56. 56KeeneNew Hampshire, United States
    1122.7×
  57. 57Puerto MonttLos Lagos Region, Chile
    1112.6×
  58. 58CauquenesMaule Region, Chile
    1112.6×
  59. 59PortlandMaine, United States
    1102.6×
  60. 60GreenfieldMassachusetts, United States
    1102.6×
  61. 61WaterburyConnecticut, United States
    1092.6×
  62. 62BawānaDelhi, India
    1082.5×
  63. 62Sault Ste. MarieOntario, Canada
    1082.5×
  64. 64LewistonMaine, United States
    1072.5×
  65. 65North ChicopeeMassachusetts, United States
    1072.5×
  66. 66HartfordConnecticut, United States
    1062.5×
  67. 67New CityNew York, United States
    1062.5×
  68. 68AshburtonCanterbury, New Zealand
    1052.5×
  69. 69BaddiHimachal Pradesh, India
    1052.5×
  70. 70NarelaDelhi, India
    1042.5×
  71. 71AugustaMaine, United States
    1042.4×
  72. 72TemucoAraucania, Chile
    1042.4×
  73. 72White PlainsNew York, United States
    1042.4×
  74. 74MuzaffarnagarUttar Pradesh, India
    1022.4×
  75. 75OtwockMazovia, Poland
    1022.4×
  76. 75Nepeanlow-cost sensorsOntario, Canada
    1022.4×
  77. 77Islamabadlow-cost sensorsIslamabad, Pakistan
    1012.4×
  78. 78CoronelBiobio, Chile
    1002.4×
  79. 79NewburghNew York, United States
    1002.4×
  80. 80Rawalpindilow-cost sensorsPunjab, Pakistan
    992.3×
  81. 80BhiwadiRajasthan, India
    992.3×
  82. 82TaupoWaikato Region, New Zealand
    992.3×
  83. 83CornwallOntario, Canada
    982.3×
  84. 83VapiGujarat, India
    982.3×
  85. 85RangioraCanterbury, New Zealand
    982.3×
  86. 86ValdiviaLos Ríos Region, Chile
    972.3×
  87. 87Greater SudburyOntario, Canada
    972.2×
  88. 88PleasantvilleNew Jersey, United States
    962.2×
  89. 89New HavenConnecticut, United States
    962.2×
  90. 90ChittoorAndhra Pradesh, India
    962.2×
  91. 91Atlantic CityNew Jersey, United States
    962.2×
  92. 92KadapaAndhra Pradesh, India
    952.2×
  93. 93MorādābādUttar Pradesh, India
    952.2×
  94. 94Santa Anita - Los FicusLima region, Peru
    952.2×
  95. 95Dubailow-cost sensorsDubai, United Arab Emirates
    942.2×
  96. 96Fall RiverMassachusetts, United States
    942.2×
  97. 97TiruppurTamil Nadu, India
    942.1×
  98. 98Ganghwa-gunIncheon, South Korea
    942.1×
  99. 99BrocktonMassachusetts, United States
    942.1×
  100. 100BridgeportConnecticut, United States
    932.1×
  101. 101SasarāmBihar, India
    922.1×
  102. 102QuinteroValparaiso, Chile
    922.1×
  103. 102QuilpuéValparaiso, Chile
    922.1×
  104. 104JalandharPunjab, India
    922.1×
  105. 104TimaruCanterbury, New Zealand
    922.1×
  106. 104LaconiaNew Hampshire, United States
    922.1×
  107. 107NajafgarhDelhi, India
    912.0×
  108. 107QuincyMassachusetts, United States
    912.0×
  109. 107HolbrookNew York, United States
    912.0×
  110. 110SuperiorWisconsin, United States
    912.0×
  111. 110BarrieOntario, Canada
    912.0×
  112. 112ConcónValparaiso, Chile
    912.0×
  113. 113NalbāriAssam, India
    912.0×
  114. 113New York CityNew York, United States
    912.0×
  115. 115HualquiBiobio, Chile
    902.0×
  116. 115CallaoCallao, Peru
    902.0×
  117. 115New LondonConnecticut, United States
    902.0×
  118. 115North BayOntario, Canada
    902.0×
  119. 119WorcesterMassachusetts, United States
    902.0×
  120. 119San Francisco De BorjaLima region, Peru
    902.0×
  121. 121Wan ChaiWan Chai, Hong Kong
    892.0×
  122. 121Wadgaon KolhatiMaharashtra, India
    892.0×
  123. 123BostonMassachusetts, United States
    892.0×
  124. 124Karachilow-cost sensorsSindh, Pakistan
    892.0×
  125. 125Temalow-cost sensorsGreater Accra, Ghana
    892.0×
  126. 126CuranilahueBiobio, Chile
    881.9×
  127. 127PortsmouthNew Hampshire, United States
    871.9×
  128. 128LynnMassachusetts, United States
    861.9×
  129. 129PennsaukenNew Jersey, United States
    861.9×
  130. 130Bahawalpurlow-cost sensorsPunjab, Pakistan
    861.9×
  131. 130AlangadKerala, India
    861.9×
  132. 132KhannaPunjab, India
    861.8×
  133. 132Fort LeeNew Jersey, United States
    861.8×
  134. 134RasapūdipalemAndhra Pradesh, India
    851.8×
  135. 134AnantapurAndhra Pradesh, India
    851.8×
  136. 136ThāneMaharashtra, India
    851.8×
  137. 136DelhiDelhi, India
    851.8×
  138. 136LimaLima Province, Peru
    851.8×
  139. 136DuluthMinnesota, United States
    851.8×
  140. 140QuillotaValparaiso, Chile
    851.8×
  141. 140SewellNew Jersey, United States
    851.8×
  142. 142Istanbullow-cost sensorsIstanbul, Turkey
    841.8×
  143. 142Green BayWisconsin, United States
    841.8×
  144. 144AhmedabadGujarat, India
    841.8×
  145. 145Wake Forestlow-cost sensorsNorth Carolina, United States
    831.8×
  146. 146BānswāraRajasthan, India
    831.8×
  147. 147San Francisco TlalcilalcalpanMéxico, Mexico
    831.7×
  148. 148BhiwandiMaharashtra, India
    821.7×
  149. 148AjmerRajasthan, India
    821.7×
  150. 150Addis AbabaAddis Ababa, Ethiopia
    821.7×
  151. 150GandhinagarGujarat, India
    821.7×
  152. 150LindenNew Jersey, United States
    821.7×
  153. 153TirupatiAndhra Pradesh, India
    821.7×
  154. 153IncheonIncheon, South Korea
    821.7×
  155. 155Oconomowoclow-cost sensorsWisconsin, United States
    821.7×
  156. 155MandideepMadhya Pradesh, India
    821.7×
  157. 157HyderabadTelangana, India
    821.7×
  158. 157NewmarketOntario, Canada
    821.7×
  159. 159SarajevoFederation of B&H, Bosnia and Herzegovina
    811.7×
  160. 160MilfordMassachusetts, United States
    811.7×
  161. 160New BrunswickNew Jersey, United States
    811.7×
  162. 160Rouyn-NorandaQuebec, Canada
    811.7×
  163. 163BayonneNew Jersey, United States
    801.7×
  164. 164GunsanJeollabuk-do, South Korea
    801.6×
  165. 164Toms RiverNew Jersey, United States
    801.6×
  166. 166KotaRajasthan, India
    801.6×
  167. 166South VinelandNew Jersey, United States
    801.6×
  168. 168SaguenayQuebec, Canada
    801.6×
  169. 169PhiladelphiaPennsylvania, United States
    791.6×
  170. 170Gimpo-siGyeonggi-do, South Korea
    791.6×
  171. 170AppletonWisconsin, United States
    791.6×
  172. 170AllistonOntario, Canada
    791.6×
  173. 170HamiltonOntario, Canada
    791.6×
  174. 174Accralow-cost sensorsGreater Accra, Ghana
    781.6×
  175. 174MiltonOntario, Canada
    781.6×
  176. 176TocopillaAntofagasta, Chile
    771.5×
  177. 176BangorMaine, United States
    771.5×
  178. 178UdaipurRajasthan, India
    771.5×
  179. 178GayaBihar, India
    771.5×
  180. 178WilmingtonDelaware, United States
    771.5×
  181. 178FraminghamMassachusetts, United States
    771.5×
  182. 178PatersonNew Jersey, United States
    771.5×
  183. 183Medina Estateslow-cost sensorsGreater Accra, Ghana
    771.5×
  184. 183EwingNew Jersey, United States
    771.5×
  185. 185MalegaonMaharashtra, India
    771.5×
  186. 185AricaArica y Parinacota Region, Chile
    771.5×
  187. 185ChesterPennsylvania, United States
    771.5×
  188. 185TorontoOntario, Canada
    771.5×
  189. 185WaterdownOntario, Canada
    771.5×
  190. 190ProvidenceRhode Island, United States
    771.5×
  191. 191Quettalow-cost sensorsBalochistan, Pakistan
    761.5×
  192. 191JaipurRajasthan, India
    761.5×
  193. 193HaverhillMassachusetts, United States
    761.5×
  194. 193DerryNew Hampshire, United States
    761.5×
  195. 195ElizabethNew Jersey, United States
    761.5×
  196. 195MilwaukeeWisconsin, United States
    761.5×
  197. 197BramptonOntario, Canada
    761.5×
  198. 198VijayapuraKarnataka, India
    751.5×
  199. 198XonacatlánMéxico, Mexico
    751.5×
  200. 198Jersey CityNew Jersey, United States
    751.5×

Top 200 of 2,474 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, July 26, 2025, smogrank.com/history/2025-07-26 (accessed 2 Oct 2026).

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