SmogRank / History / August 25, 2025

Most polluted cities on August 25, 2025

2,275 cities ranked by their average PM2.5 over the day; the worst was Saltillo, Mexico, at 366.0 µg/m³. Each city's own local calendar day.

  1. 1SaltilloCoahuila, Mexico
    366.024.4×
  2. 2RānipetTamil Nadu, India
    104.06.9×
  3. 3CuddaloreTamil Nadu, India
    102.06.8×
  4. 4VereenigingGauteng, South Africa
    78.95.3×
  5. 5KigaliKigali, Rwanda
    57.83.9×
  6. 6Dubailow-cost sensorsDubai, United Arab Emirates
    54.83.7×
  7. 7Multanlow-cost sensorsPunjab, Pakistan
    54.73.6×
  8. 8GummidipundiTamil Nadu, India
    53.53.6×
  9. 9Faisalabadlow-cost sensorsPunjab, Pakistan
    53.23.5×
  10. 10NalbāriAssam, India
    51.83.5×
  11. 11Beitbridgelow-cost sensorsMatabeleland South Province, Zimbabwe
    49.73.3×
  12. 12Hararelow-cost sensorsHarare, Zimbabwe
    48.83.3×
  13. 13JakartaJakarta, Indonesia
    48.53.2×
  14. 14Wadgaon KolhatiMaharashtra, India
    45.43.0×
  15. 15TirupatiAndhra Pradesh, India
    45.33.0×
  16. 16ChittoorAndhra Pradesh, India
    44.53.0×
  17. 17TiruchirappalliTamil Nadu, India
    43.42.9×
  18. 18Istanbullow-cost sensorsIstanbul, Turkey
    42.92.9×
  19. 19VijayawadaAndhra Pradesh, India
    42.32.8×
  20. 20KatsuuraChiba, Japan
    42.02.8×
  21. 21CalexicoCalifornia, United States
    40.22.7×
  22. 22DushanbeDushanbe, Tajikistan
    39.32.6×
  23. 23DhaulpurRajasthan, India
    38.52.6×
  24. 24Bahawalpurlow-cost sensorsPunjab, Pakistan
    38.32.6×
  25. 25NāgaurRajasthan, India
    38.22.5×
  26. 26SerilingampalleTelangana, India
    36.52.4×
  27. 27NagaonAssam, India
    36.42.4×
  28. 28MangaluruKarnataka, India
    35.52.4×
  29. 29JodaOdisha, India
    35.42.4×
  30. 30CatañoCataño, Puerto Rico
    34.82.3×
  31. 31PonferradaCastille and León, Spain
    33.22.2×
  32. 32CholulaPuebla, Mexico
    33.12.2×
  33. 33Casa GrandeArizona, United States
    33.02.2×
  34. 34Ashaimanlow-cost sensorsGreater Accra, Ghana
    32.92.2×
  35. 35TirupparangunramTamil Nadu, India
    32.52.2×
  36. 36RasapūdipalemAndhra Pradesh, India
    32.42.2×
  37. 37LimaLima Province, Peru
    31.52.1×
  38. 38QuthbullapurTelangana, India
    31.22.1×
  39. 39Karachilow-cost sensorsSindh, Pakistan
    30.22.0×
  40. 40ŌtsukiYamanashi, Japan
    30.02.0×
  41. 41Gujranwalalow-cost sensorsPunjab, Pakistan
    29.32.0×
  42. 42San Francisco De BorjaLima region, Peru
    29.11.9×
  43. 43AnantapurAndhra Pradesh, India
    29.01.9×
  44. 43Temalow-cost sensorsGreater Accra, Ghana
    29.01.9×
  45. 45AyaseKanagawa, Japan
    28.41.9×
  46. 46KanchipuramTamil Nadu, India
    28.01.9×
  47. 46LewistonIdaho, United States
    28.01.9×
  48. 48Lagoslow-cost sensorsLagos, Nigeria
    27.91.9×
  49. 49Quettalow-cost sensorsBalochistan, Pakistan
    27.41.8×
  50. 50XonacatlánMéxico, Mexico
    27.31.8×
  51. 51Hyderabadlow-cost sensorsSindh, Pakistan
    27.01.8×
  52. 52ChigasakiKanagawa, Japan
    26.91.8×
  53. 53PatnaBihar, India
    26.61.8×
  54. 53KurihamaKanagawa, Japan
    26.61.8×
  55. 53KamakuraKanagawa, Japan
    26.61.8×
  56. 53GotembaShizuoka, Japan
    26.61.8×
  57. 53AtamiShizuoka, Japan
    26.61.8×
  58. 53MiuraKanagawa, Japan
    26.61.8×
  59. 59BengaluruKarnataka, India
    26.51.8×
  60. 60Iloilolow-cost sensorsWestern Visayas, Philippines
    26.21.7×
  61. 60NavalpattuTamil Nadu, India
    26.21.7×
  62. 62BettiahBihar, India
    26.11.7×
  63. 62TateyamaChiba, Japan
    26.11.7×
  64. 62KamisuIbaraki, Japan
    26.11.7×
  65. 65Quezon Citylow-cost sensorsNational Capital Region, Philippines
    25.91.7×
  66. 66OdawaraKanagawa, Japan
    25.81.7×
  67. 67ŌharaChiba, Japan
    25.71.7×
  68. 68KalyānMaharashtra, India
    25.51.7×
  69. 69ChennaiTamil Nadu, India
    25.31.7×
  70. 70Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    25.21.7×
  71. 70BegusaraiBihar, India
    25.21.7×
  72. 70BadlapurMaharashtra, India
    25.21.7×
  73. 70FujisawaKanagawa, Japan
    25.21.7×
  74. 74BaripādaOdisha, India
    24.71.6×
  75. 74YokkaichiMie, Japan
    24.71.6×
  76. 74AnanTokushima, Japan
    24.71.6×
  77. 74FujiyoshidaYamanashi, Japan
    24.71.6×
  78. 78KalaburagiKarnataka, India
    24.51.6×
  79. 78ChāpraBihar, India
    24.51.6×
  80. 78MinamirinkanKanagawa, Japan
    24.51.6×
  81. 81HyderabadTelangana, India
    24.41.6×
  82. 82YokosukaKanagawa, Japan
    24.31.6×
  83. 82ShimodaShizuoka, Japan
    24.31.6×
  84. 82HadanoKanagawa, Japan
    24.31.6×
  85. 85NandedMaharashtra, India
    24.21.6×
  86. 85MobaraChiba, Japan
    24.21.6×
  87. 87HiratsukaKanagawa, Japan
    24.11.6×
  88. 88NakaIbaraki, Japan
    23.81.6×
  89. 88MinamibōsōChiba, Japan
    23.81.6×
  90. 90AiharaKanagawa, Japan
    23.71.6×
  91. 90KimitsuChiba, Japan
    23.71.6×
  92. 92GayaBihar, India
    23.61.6×
  93. 92MinawaKanagawa, Japan
    23.61.6×
  94. 92TuxtlaChiapas, Mexico
    23.61.6×
  95. 92EbinaKanagawa, Japan
    23.61.6×
  96. 92VapiGujarat, India
    23.61.6×
  97. 92NeelankaraiTamil Nadu, India
    23.61.6×
  98. 98TsuchiuraIbaraki, Japan
    23.51.6×
  99. 99BhiwadiRajasthan, India
    23.41.6×
  100. 100GūduvāncheriTamil Nadu, India
    23.31.6×
  101. 101Richards BayKwaZulu-Natal, South Africa
    23.21.5×
  102. 101KariyaAichi, Japan
    23.21.5×
  103. 101SōsaChiba, Japan
    23.21.5×
  104. 104KuwanaMie, Japan
    23.11.5×
  105. 105KakegawaShizuoka, Japan
    23.01.5×
  106. 106IzunokuniShizuoka, Japan
    22.91.5×
  107. 107RānīganjWest Bengal, India
    22.81.5×
  108. 107KisarazuChiba, Japan
    22.81.5×
  109. 107YokoshibaChiba, Japan
    22.81.5×
  110. 107LorcaMurcia, Spain
    22.81.5×
  111. 107InabeMie, Japan
    22.81.5×
  112. 107KikugawaShizuoka, Japan
    22.81.5×
  113. 107NisshinAichi, Japan
    22.81.5×
  114. 114Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    22.71.5×
  115. 114BhāgalpurBihar, India
    22.71.5×
  116. 114YokohamaKanagawa, Japan
    22.71.5×
  117. 114AshburtonCanterbury, New Zealand
    22.71.5×
  118. 114AmaAichi, Japan
    22.71.5×
  119. 119TaharaAichi, Japan
    22.61.5×
  120. 119JaénAndalusia, Spain
    22.61.5×
  121. 119Prince GeorgeBritish Columbia, Canada
    22.61.5×
  122. 119YamatoKanagawa, Japan
    22.61.5×
  123. 123FujinomiyaShizuoka, Japan
    22.51.5×
  124. 123IchiharaChiba, Japan
    22.51.5×
  125. 123OurenseGalicia, Spain
    22.51.5×
  126. 126ShizuokaShizuoka, Japan
    22.41.5×
  127. 126OnoHyōgo, Japan
    22.41.5×
  128. 128Taguiglow-cost sensorsNational Capital Region, Philippines
    22.31.5×
  129. 128Barrio de PeralMurcia, Spain
    22.31.5×
  130. 130MinamiashigaraKanagawa, Japan
    22.21.5×
  131. 131SaikiOita, Japan
    22.11.5×
  132. 131ChibaChiba, Japan
    22.11.5×
  133. 133NagoyaAichi, Japan
    22.01.5×
  134. 133YachimataChiba, Japan
    22.01.5×
  135. 133SevillaAndalusia, Spain
    22.01.5×
  136. 133TōkaiAichi, Japan
    22.01.5×
  137. 137VijayapuraKarnataka, India
    21.91.5×
  138. 137NumazuShizuoka, Japan
    21.91.5×
  139. 137FujiedaShizuoka, Japan
    21.91.5×
  140. 137TorreviejaValencia, Spain
    21.91.5×
  141. 137PocatelloIdaho, United States
    21.91.5×
  142. 142AtsugiKanagawa, Japan
    21.71.4×
  143. 142HigashinozoeHyōgo, Japan
    21.71.4×
  144. 142TōganeChiba, Japan
    21.71.4×
  145. 142SakuraChiba, Japan
    21.71.4×
  146. 142SodegauraChiba, Japan
    21.71.4×
  147. 147KolkataWest Bengal, India
    21.61.4×
  148. 147MachidaTokyo, Japan
    21.61.4×
  149. 147Accralow-cost sensorsGreater Accra, Ghana
    21.61.4×
  150. 147CallaoCallao, Peru
    21.61.4×
  151. 151VelloreTamil Nadu, India
    21.51.4×
  152. 151MorādābādUttar Pradesh, India
    21.51.4×
  153. 151HubballiKarnataka, India
    21.51.4×
  154. 151FujiShizuoka, Japan
    21.51.4×
  155. 151KosaiShizuoka, Japan
    21.51.4×
  156. 151AzaminoKanagawa, Japan
    21.51.4×
  157. 157Rawalpindilow-cost sensorsPunjab, Pakistan
    21.31.4×
  158. 157HachiōjiTokyo, Japan
    21.31.4×
  159. 159IchinomiyaAichi, Japan
    21.21.4×
  160. 159KaizuGifu, Japan
    21.21.4×
  161. 161SilcharAssam, India
    21.11.4×
  162. 161OkazakiAichi, Japan
    21.11.4×
  163. 161OmigawaChiba, Japan
    21.11.4×
  164. 161JōsōIbaraki, Japan
    21.11.4×
  165. 165DurgapurWest Bengal, India
    21.01.4×
  166. 165TokyoTokyo, Japan
    21.01.4×
  167. 165NishioAichi, Japan
    21.01.4×
  168. 165MatsusakaMie, Japan
    21.01.4×
  169. 169ChiryūAichi, Japan
    20.91.4×
  170. 170IwataShizuoka, Japan
    20.81.4×
  171. 170Gasteiz / VitoriaBasque Country, Spain
    20.81.4×
  172. 172UrayasuChiba, Japan
    20.71.4×
  173. 172ShimadaShizuoka, Japan
    20.71.4×
  174. 172HamamatsuShizuoka, Japan
    20.71.4×
  175. 172HamakitaShizuoka, Japan
    20.71.4×
  176. 172Tepeji del Río de OcampoHidalgo, Mexico
    20.71.4×
  177. 172NoboritoKanagawa, Japan
    20.71.4×
  178. 178GudalurTamil Nadu, India
    20.61.4×
  179. 178HuelvaAndalusia, Spain
    20.61.4×
  180. 180DelhiDelhi, India
    20.51.4×
  181. 180IseMie, Japan
    20.51.4×
  182. 180YotsukaidōChiba, Japan
    20.51.4×
  183. 180TaupoWaikato Region, New Zealand
    20.51.4×
  184. 180RangioraCanterbury, New Zealand
    20.51.4×
  185. 180San Salvador TizatlalliMéxico, Mexico
    20.51.4×
  186. 186SalemTamil Nadu, India
    20.41.4×
  187. 186ToyotaAichi, Japan
    20.41.4×
  188. 186SakuNagano, Japan
    20.41.4×
  189. 186KofuYamanashi, Japan
    20.41.4×
  190. 186GamagōriAichi, Japan
    20.41.4×
  191. 191ShimaMie, Japan
    20.31.4×
  192. 191MonctonNew Brunswick, Canada
    20.31.4×
  193. 191FuchūTokyo, Japan
    20.31.4×
  194. 194TobaMie, Japan
    20.21.3×
  195. 194Kakogawachō-honmachiHyōgo, Japan
    20.21.3×
  196. 194YachiyoChiba, Japan
    20.21.3×
  197. 194KodairaTokyo, Japan
    20.21.3×
  198. 198AkashiHyōgo, Japan
    20.11.3×
  199. 199ShidoKagawa, Japan
    20.01.3×
  200. 199HandaAichi, Japan
    20.01.3×

Top 200 of 2,275 shown.

Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

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SmogRank, most polluted cities, PM2.5, August 25, 2025, smogrank.com/history/2025-08-25 (accessed 2 Oct 2026).

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