SmogRank / History / week of August 3, 2026

Most polluted cities, week of August 3, 2026

2,320 cities ranked by their average PM2.5 over the 7 days; the worst was Kamloops, Canada, at 107.9 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1KamloopsBritish Columbia, Canada
    107.9
  2. 2DhaulpurRajasthan, India
    105.5
  3. 3WenatcheeWashington, United States
    99.7
  4. 4Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    77.1
  5. 5VernonBritish Columbia, Canada
    69.6
  6. 6Lilongwelow-cost sensorsCentral Region, Malawi
    67.7
  7. 7Kampalalow-cost sensorsCentral Region, Uganda
    67.0
  8. 8Moses LakeWashington, United States
    64.9
  9. 9Spokane ValleyWashington, United States
    63.1
  10. 10SpokaneWashington, United States
    62.3
  11. 11GurugramHaryana, India
    61.9
  12. 12Dera MāndiDelhi, India
    60.7
  13. 13GummidipundiTamil Nadu, India
    58.8
  14. 14Vereeniginglow-cost sensorsGauteng, South Africa
    58.6
  15. 15NampaIdaho, United States
    57.0
  16. 16Walla WallaWashington, United States
    56.3
  17. 17Beitbridgelow-cost sensorsMatabeleland South Province, Zimbabwe
    55.8
  18. 18Karongalow-cost sensorsNorthern Region, Malawi
    55.4
  19. 19DushanbeDushanbe, Tajikistan
    54.1
  20. 20Faisalabadlow-cost sensorsPunjab, Pakistan
    53.4
  21. 21CranbrookBritish Columbia, Canada
    53.2
  22. 22Coeur d'AleneIdaho, United States
    52.6
  23. 22PendletonOregon, United States
    52.6
  24. 24YakimaWashington, United States
    52.5
  25. 25Gujranwalalow-cost sensorsPunjab, Pakistan
    52.0
  26. 26Quettalow-cost sensorsBalochistan, Pakistan
    50.6
  27. 27SaltilloCoahuila, Mexico
    50.5
  28. 28BhāgalpurBihar, India
    49.4
  29. 29Blantyrelow-cost sensorsSouthern Region, Malawi
    48.0
  30. 30Palembanglow-cost sensorsSouth Sumatra, Indonesia
    46.6
  31. 31FaridabadHaryana, India
    46.5
  32. 31MeridianIdaho, United States
    46.5
  33. 33SiwānBihar, India
    46.2
  34. 34Lahorelow-cost sensorsPunjab, Pakistan
    45.8
  35. 35Ashaimanlow-cost sensorsGreater Accra, Ghana
    45.7
  36. 36Zombalow-cost sensorsSouthern Region, Malawi
    45.1
  37. 37EllensburgWashington, United States
    44.7
  38. 38EugeneOregon, United States
    44.5
  39. 39KennewickWashington, United States
    44.2
  40. 40Mzuzulow-cost sensorsNorthern Region, Malawi
    44.1
  41. 41BoiseIdaho, United States
    43.4
  42. 42Multanlow-cost sensorsPunjab, Pakistan
    42.6
  43. 43Redmondlow-cost sensorsWashington, United States
    42.5
  44. 44AhmedabadGujarat, India
    42.3
  45. 44Tri-CitiesWashington, United States
    42.3
  46. 46PascoWashington, United States
    41.0
  47. 47The DallesOregon, United States
    40.5
  48. 48DhāruheraHaryana, India
    40.1
  49. 49NilópolisRio de Janeiro, Brazil
    39.9
  50. 50SunnysideWashington, United States
    39.8
  51. 51HermistonOregon, United States
    38.4
  52. 52Dhakalow-cost sensorsDhaka Division, Bangladesh
    38.3
  53. 53BhiwadiRajasthan, India
    37.5
  54. 54Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    37.2
  55. 54KelownaBritish Columbia, Canada
    37.2
  56. 56PullmanWashington, United States
    37.1
  57. 57LewistonIdaho, United States
    36.6
  58. 58JhariaJharkhand, India
    36.4
  59. 59ButteMontana, United States
    36.3
  60. 60JaipurRajasthan, India
    36.2
  61. 60DūngarpurRajasthan, India
    36.2
  62. 62Twin FallsIdaho, United States
    35.6
  63. 63MoscowIdaho, United States
    35.4
  64. 63RedmondOregon, United States
    35.4
  65. 65Oregon CityOregon, United States
    35.3
  66. 66MissoulaMontana, United States
    35.0
  67. 67Sialkotlow-cost sensorsPunjab, Pakistan
    34.9
  68. 68BozemanMontana, United States
    34.7
  69. 68CanbyOregon, United States
    34.7
  70. 70ChittorgarhRajasthan, India
    34.6
  71. 70BhilwaraRajasthan, India
    34.6
  72. 72AlbanyOregon, United States
    34.4
  73. 73Union Hill-Novelty Hilllow-cost sensorsWashington, United States
    34.3
  74. 74UnderaGujarat, India
    33.6
  75. 75VijayawadaAndhra Pradesh, India
    33.5
  76. 75ChilliwackBritish Columbia, Canada
    33.5
  77. 77Jammulow-cost sensorsJammu and Kashmir, India
    33.4
  78. 77NoidaUttar Pradesh, India
    33.4
  79. 79GwaliorMadhya Pradesh, India
    32.2
  80. 80JhālāwārRajasthan, India
    32.1
  81. 81Hararelow-cost sensorsHarare, Zimbabwe
    32.0
  82. 82TirupatiAndhra Pradesh, India
    31.8
  83. 83Istanbullow-cost sensorsIstanbul, Turkey
    31.7
  84. 84Lagoslow-cost sensorsLagos, Nigeria
    31.2
  85. 85KaithalHaryana, India
    31.0
  86. 85San Luis PotosíSan Luis Potosí, Mexico
    31.0
  87. 87Islamabadlow-cost sensorsIslamabad, Pakistan
    30.9
  88. 87Arvadalow-cost sensorsColorado, United States
    30.9
  89. 89JalandharPunjab, India
    30.8
  90. 90JodaOdisha, India
    30.7
  91. 91Dubailow-cost sensorsDubai, United Arab Emirates
    30.5
  92. 92TuxtlaChiapas, Mexico
    30.4
  93. 93Loganlow-cost sensorsUtah, United States
    30.2
  94. 94Tongaatlow-cost sensorsKwaZulu-Natal, South Africa
    30.0
  95. 95Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    29.9
  96. 96GreshamOregon, United States
    29.7
  97. 97North Creeklow-cost sensorsWashington, United States
    29.6
  98. 98Kirklandlow-cost sensorsWashington, United States
    29.5
  99. 99Murreelow-cost sensorsPunjab, Pakistan
    29.4
  100. 100TonkRajasthan, India
    29.3
  101. 101RājsamandRajasthan, India
    29.1
  102. 102KotaRajasthan, India
    29.0
  103. 102Inglewood-Finn Hilllow-cost sensorsWashington, United States
    29.0
  104. 104TigardOregon, United States
    28.9
  105. 105SalemOregon, United States
    28.8
  106. 106Rawalpindilow-cost sensorsPunjab, Pakistan
    28.7
  107. 106JīndHaryana, India
    28.7
  108. 108PratāpgarhRajasthan, India
    28.6
  109. 109Kotli Loharanlow-cost sensorsPunjab, Pakistan
    28.5
  110. 110ThānesarHaryana, India
    28.4
  111. 111CorvallisOregon, United States
    28.3
  112. 112DallasOregon, United States
    28.1
  113. 113BillingsMontana, United States
    27.9
  114. 114Jouniehlow-cost sensorsMount Lebanon, Lebanon
    27.7
  115. 114RoparPunjab, India
    27.7
  116. 116BeavertonOregon, United States
    27.6
  117. 116BendOregon, United States
    27.6
  118. 118ThāneMaharashtra, India
    27.5
  119. 119BahadurgarhHaryana, India
    27.4
  120. 120HelenaMontana, United States
    27.0
  121. 120SheridanWyoming, United States
    27.0
  122. 122Parkerlow-cost sensorsColorado, United States
    26.7
  123. 123RasapūdipalemAndhra Pradesh, India
    26.6
  124. 124KanpurUttar Pradesh, India
    26.5
  125. 125Wan ChaiWan Chai, Hong Kong
    26.4
  126. 126Karachilow-cost sensorsSindh, Pakistan
    26.2
  127. 127Great FallsMontana, United States
    26.1
  128. 128Beirutlow-cost sensorsBeirut, Lebanon
    26.0
  129. 128DurgapurWest Bengal, India
    26.0
  130. 128BoisarMaharashtra, India
    26.0
  131. 128WoodburnOregon, United States
    26.0
  132. 128Bothelllow-cost sensorsWashington, United States
    26.0
  133. 133Sawai MadhopurRajasthan, India
    25.6
  134. 134Bahawalpurlow-cost sensorsPunjab, Pakistan
    25.5
  135. 134Duque de CaxiasRio de Janeiro, Brazil
    25.5
  136. 136KarwarKarnataka, India
    25.3
  137. 136ArāriaBihar, India
    25.3
  138. 136Hacienda Santa FeJalisco, Mexico
    25.3
  139. 139MuzaffarnagarUttar Pradesh, India
    25.1
  140. 140JaisalmerRajasthan, India
    25.0
  141. 140ThorntonColorado, United States
    25.0
  142. 140Fort CollinsColorado, United States
    25.0
  143. 143HillsboroOregon, United States
    24.8
  144. 144Richards Baylow-cost sensorsKwaZulu-Natal, South Africa
    24.7
  145. 144LongmontColorado, United States
    24.7
  146. 146DādriUttar Pradesh, India
    24.6
  147. 146KentWashington, United States
    24.6
  148. 148DelhiDelhi, India
    24.5
  149. 149DausaRajasthan, India
    24.4
  150. 150AltamontOregon, United States
    24.3
  151. 150Monroelow-cost sensorsWashington, United States
    24.3
  152. 152SirohiRajasthan, India
    24.1
  153. 152BaddiHimachal Pradesh, India
    24.1
  154. 154KarnālHaryana, India
    23.8
  155. 155KolkataWest Bengal, India
    23.5
  156. 156HājīpurBihar, India
    23.4
  157. 156Butwāllow-cost sensorsLumbini Province, Nepal
    23.4
  158. 158JalorRajasthan, India
    23.2
  159. 159CalexicoCalifornia, United States
    23.0
  160. 160AuburnWashington, United States
    22.9
  161. 161Sidonlow-cost sensorsSouth Governorate, Lebanon
    22.8
  162. 161AntananarivoAnalamanga, Madagascar
    22.8
  163. 161MeerutUttar Pradesh, India
    22.8
  164. 164GilletteWyoming, United States
    22.7
  165. 165SilcharAssam, India
    22.5
  166. 165MangaluruKarnataka, India
    22.5
  167. 165AnkleshwarGujarat, India
    22.5
  168. 165PortlandOregon, United States
    22.5
  169. 169NagpurMaharashtra, India
    22.4
  170. 170LucknowUttar Pradesh, India
    22.3
  171. 171KalyānMaharashtra, India
    22.2
  172. 171BoulderColorado, United States
    22.2
  173. 173SaharsaBihar, India
    22.1
  174. 174IndoreMadhya Pradesh, India
    22.0
  175. 174Changchunlow-cost sensorsJilin, China
    22.0
  176. 174PocatelloIdaho, United States
    22.0
  177. 174Aya NagarDelhi, India
    22.0
  178. 178GandhinagarGujarat, India
    21.9
  179. 178Ciudad NezahualcoyotlMéxico, Mexico
    21.9
  180. 178DenverColorado, United States
    21.9
  181. 178WindsorColorado, United States
    21.9
  182. 182Casa GrandeArizona, United States
    21.7
  183. 182Idaho FallsIdaho, United States
    21.7
  184. 182NandriRajasthan, India
    21.7
  185. 185Hyderabadlow-cost sensorsSindh, Pakistan
    21.6
  186. 185NarelaDelhi, India
    21.6
  187. 185BhiwandiMaharashtra, India
    21.6
  188. 188ShrīrāmpurWest Bengal, India
    21.5
  189. 188Singaporelow-cost sensorsSingapore
    21.5
  190. 190AurangabadMaharashtra, India
    21.3
  191. 190Iloilolow-cost sensorsWestern Visayas, Philippines
    21.3
  192. 190PueblaPuebla, Mexico
    21.3
  193. 190PanchkulaHaryana, India
    21.3
  194. 194ChennaiTamil Nadu, India
    21.2
  195. 195SrinagarJammu and Kashmir, India
    21.1
  196. 195BhopalMadhya Pradesh, India
    21.1
  197. 195Naucalpan de JuárezMéxico, Mexico
    21.1
  198. 195VancouverWashington, United States
    21.1
  199. 195KhargharMaharashtra, India
    21.1
  200. 200Santa CatarinaNuevo León, Mexico
    21.0

Top 200 of 2,320 shown.

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