SmogRank / History / week of May 25, 2026

Most polluted cities, week of May 25, 2026

2,230 cities ranked by their average PM2.5 over the 7 days; the worst was Saltillo, Mexico, at 198.4 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1SaltilloCoahuila, Mexico
    198.4
  2. 2BhiwāniHaryana, India
    101.8
  3. 3GurugramHaryana, India
    91.4
  4. 4KaithalHaryana, India
    90.5
  5. 5FaridabadHaryana, India
    90.1
  6. 6DādriUttar Pradesh, India
    84.5
  7. 7Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    82.5
  8. 8BahadurgarhHaryana, India
    80.2
  9. 9DhāruheraHaryana, India
    74.6
  10. 10NarelaDelhi, India
    70.5
  11. 11KarnālHaryana, India
    68.5
  12. 12AmbālaHaryana, India
    65.2
  13. 13JodaOdisha, India
    63.8
  14. 14MuzaffarnagarUttar Pradesh, India
    60.6
  15. 15DhaulpurRajasthan, India
    59.6
  16. 16Greater NoidaUttar Pradesh, India
    59.1
  17. 17GummidipundiTamil Nadu, India
    58.7
  18. 18PanchkulaHaryana, India
    58.5
  19. 19HāpurUttar Pradesh, India
    57.1
  20. 20JhariaJharkhand, India
    54.1
  21. 21Vereeniginglow-cost sensorsGauteng, South Africa
    52.4
  22. 22ThānesarHaryana, India
    51.9
  23. 22BhiwadiRajasthan, India
    51.9
  24. 24DelhiDelhi, India
    51.0
  25. 25SingrauliMadhya Pradesh, India
    50.8
  26. 26NoidaUttar Pradesh, India
    50.7
  27. 27SonīpatHaryana, India
    49.7
  28. 27Aya NagarDelhi, India
    49.7
  29. 29VirārMaharashtra, India
    49.5
  30. 30JaipurRajasthan, India
    49.0
  31. 31JalandharPunjab, India
    48.6
  32. 31JhunjhunūnRajasthan, India
    48.6
  33. 33GhāziābādUttar Pradesh, India
    46.3
  34. 34Kampalalow-cost sensorsCentral Region, Uganda
    45.3
  35. 34LucknowUttar Pradesh, India
    45.3
  36. 36Beitbridgelow-cost sensorsMatabeleland South Province, Zimbabwe
    45.0
  37. 37Lilongwelow-cost sensorsCentral Region, Malawi
    44.2
  38. 37HājīpurBihar, India
    44.2
  39. 39Yamuna NagarHaryana, India
    43.7
  40. 40JaisalmerRajasthan, India
    43.6
  41. 41Dhakalow-cost sensorsDhaka Division, Bangladesh
    43.4
  42. 42MeerutUttar Pradesh, India
    43.2
  43. 42Jammulow-cost sensorsJammu and Kashmir, India
    43.2
  44. 44Faisalabadlow-cost sensorsPunjab, Pakistan
    41.8
  45. 45NajafgarhDelhi, India
    41.6
  46. 46BānswāraRajasthan, India
    41.4
  47. 47AngulOdisha, India
    40.2
  48. 48AgraUttar Pradesh, India
    40.0
  49. 49Dubailow-cost sensorsDubai, United Arab Emirates
    39.3
  50. 50AjmerRajasthan, India
    38.5
  51. 51VijayawadaAndhra Pradesh, India
    37.9
  52. 51NagpurMaharashtra, India
    37.9
  53. 53ChāndaMaharashtra, India
    37.8
  54. 54Lagoslow-cost sensorsLagos, Nigeria
    37.1
  55. 55ChittorgarhRajasthan, India
    37.0
  56. 56GwaliorMadhya Pradesh, India
    36.7
  57. 57ChittoorAndhra Pradesh, India
    36.2
  58. 58Lahorelow-cost sensorsPunjab, Pakistan
    36.0
  59. 59Kathmandulow-cost sensorsBagmati Province, Nepal
    35.8
  60. 60ChūruRajasthan, India
    35.4
  61. 61GayaBihar, India
    35.3
  62. 62Rahim Yar Khanlow-cost sensorsPunjab, Pakistan
    35.2
  63. 62TonkRajasthan, India
    35.2
  64. 64NalbāriAssam, India
    35.1
  65. 65Pachuca de SotoHidalgo, Mexico
    34.7
  66. 66BārānRajasthan, India
    34.6
  67. 66BadlapurMaharashtra, India
    34.6
  68. 68Gujranwalalow-cost sensorsPunjab, Pakistan
    34.5
  69. 69Sialkotlow-cost sensorsPunjab, Pakistan
    34.4
  70. 70JhālāwārRajasthan, India
    34.0
  71. 71Santa Anita - Los FicusLima region, Peru
    33.6
  72. 72RourkelaOdisha, India
    33.4
  73. 73TuxtlaChiapas, Mexico
    33.3
  74. 74Multanlow-cost sensorsPunjab, Pakistan
    33.2
  75. 74KanpurUttar Pradesh, India
    33.2
  76. 76NagaonAssam, India
    33.0
  77. 77RājgīrBihar, India
    32.8
  78. 78TrentoTrentino-Alto Adige, Italy
    32.1
  79. 79LimaLima Province, Peru
    32.0
  80. 80KeonjhargarhOdisha, India
    31.7
  81. 80Quezon Citylow-cost sensorsNational Capital Region, Philippines
    31.7
  82. 82TlaquepaqueJalisco, Mexico
    31.6
  83. 83RasapūdipalemAndhra Pradesh, India
    31.5
  84. 83LaturMaharashtra, India
    31.5
  85. 85SaugorMadhya Pradesh, India
    31.3
  86. 86Kotli Loharanlow-cost sensorsPunjab, Pakistan
    30.9
  87. 87Ashaimanlow-cost sensorsGreater Accra, Ghana
    30.8
  88. 88MorādābādUttar Pradesh, India
    30.7
  89. 89BhilwaraRajasthan, India
    30.5
  90. 90BikanerRajasthan, India
    30.4
  91. 91Rawalpindilow-cost sensorsPunjab, Pakistan
    30.2
  92. 92BhiwandiMaharashtra, India
    30.0
  93. 93Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    29.9
  94. 94CalexicoCalifornia, United States
    29.7
  95. 95DhuleMaharashtra, India
    29.5
  96. 96RaipurChhattisgarh, India
    29.0
  97. 96BoisarMaharashtra, India
    29.0
  98. 96Temalow-cost sensorsGreater Accra, Ghana
    29.0
  99. 99AkolaMaharashtra, India
    28.9
  100. 100Bahawalpurlow-cost sensorsPunjab, Pakistan
    28.6
  101. 100PatiālaPunjab, India
    28.6
  102. 100JalgaonMaharashtra, India
    28.6
  103. 100BuxarBihar, India
    28.6
  104. 100QuthbullapurTelangana, India
    28.6
  105. 105San Francisco De BorjaLima region, Peru
    28.5
  106. 106Dakarlow-cost sensorsDakar, Senegal
    28.3
  107. 107BūndiRajasthan, India
    28.1
  108. 107San Luis PotosíSan Luis Potosí, Mexico
    28.1
  109. 109IndoreMadhya Pradesh, India
    28.0
  110. 110DausaRajasthan, India
    27.7
  111. 110Sukutalow-cost sensorsWestern, Gambia
    27.7
  112. 112BhilaiChhattisgarh, India
    27.6
  113. 112AmaravatiAndhra Pradesh, India
    27.6
  114. 114CuautlaMorelos, Mexico
    27.4
  115. 115Ibadanlow-cost sensorsOyo State, Nigeria
    27.2
  116. 116AhmedabadGujarat, India
    27.0
  117. 117DūngarpurRajasthan, India
    26.9
  118. 118AmravatiMaharashtra, India
    26.7
  119. 119RājsamandRajasthan, India
    26.6
  120. 119KotaRajasthan, India
    26.6
  121. 119BārmerRajasthan, India
    26.6
  122. 122BarbilOdisha, India
    26.5
  123. 123BhāgalpurBihar, India
    26.4
  124. 124SholapurMaharashtra, India
    26.3
  125. 125BegusaraiBihar, India
    26.1
  126. 126NeelankaraiTamil Nadu, India
    26.0
  127. 127Islamabadlow-cost sensorsIslamabad, Pakistan
    25.9
  128. 127KolkataWest Bengal, India
    25.9
  129. 127BaripādaOdisha, India
    25.9
  130. 130SirohiRajasthan, India
    25.8
  131. 131Tongaatlow-cost sensorsKwaZulu-Natal, South Africa
    25.7
  132. 131HanumāngarhRajasthan, India
    25.7
  133. 133Karachilow-cost sensorsSindh, Pakistan
    25.6
  134. 134DurgapurWest Bengal, India
    25.3
  135. 135SīkarRajasthan, India
    25.2
  136. 135JalorRajasthan, India
    25.2
  137. 135ChandigarhChandigarh, India
    25.2
  138. 135BareillyUttar Pradesh, India
    25.2
  139. 139Phuntsholinglow-cost sensorsChukha, Bhutan
    25.1
  140. 139PatnaBihar, India
    25.1
  141. 139Iloilolow-cost sensorsWestern Visayas, Philippines
    25.1
  142. 142KalyānMaharashtra, India
    25.0
  143. 142NandriRajasthan, India
    25.0
  144. 144TirupatiAndhra Pradesh, India
    24.9
  145. 144NāgaurRajasthan, India
    24.9
  146. 144GuwahatiAssam, India
    24.9
  147. 144MinokamoGifu, Japan
    24.9
  148. 148Sri GanganagarRajasthan, India
    24.7
  149. 148Hacienda Santa FeJalisco, Mexico
    24.7
  150. 150ChennaiTamil Nadu, India
    24.6
  151. 150AguascalientesAguascalientes, Mexico
    24.6
  152. 152BhopalMadhya Pradesh, India
    24.3
  153. 153ArāriaBihar, India
    24.0
  154. 154Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    23.9
  155. 155UnderaGujarat, India
    23.8
  156. 156ParbhaniMaharashtra, India
    23.6
  157. 157Murreelow-cost sensorsPunjab, Pakistan
    23.5
  158. 158AurangabadMaharashtra, India
    23.4
  159. 159PrayagrajUttar Pradesh, India
    23.3
  160. 160JodhpurRajasthan, India
    23.2
  161. 160JabalpurMadhya Pradesh, India
    23.2
  162. 162PueblaPuebla, Mexico
    23.0
  163. 162NaharlagunArunachal Pradesh, India
    23.0
  164. 164HubballiKarnataka, India
    22.8
  165. 165HaldiaWest Bengal, India
    22.5
  166. 166Richards Baylow-cost sensorsKwaZulu-Natal, South Africa
    22.4
  167. 167ThāneMaharashtra, India
    22.3
  168. 167PratāpgarhRajasthan, India
    22.3
  169. 167Saint-Louislow-cost sensorsSaint-Louis, Senegal
    22.3
  170. 170Ciudad NezahualcoyotlMéxico, Mexico
    22.2
  171. 171NandedMaharashtra, India
    21.6
  172. 172Istanbullow-cost sensorsIstanbul, Turkey
    21.2
  173. 173Portolow-cost sensorsPorto, Portugal
    21.0
  174. 173IrapuatoGuanajuato, Mexico
    21.0
  175. 175SzegedCsongrád, Hungary
    20.9
  176. 175Blantyrelow-cost sensorsSouthern Region, Malawi
    20.9
  177. 177SilcharAssam, India
    20.5
  178. 177DurgChhattisgarh, India
    20.5
  179. 179Mixquiahuala de JuárezHidalgo, Mexico
    20.3
  180. 179CelayaGuanajuato, Mexico
    20.3
  181. 181BettiahBihar, India
    20.1
  182. 181MoreliaMichoacán, Mexico
    20.1
  183. 183BhubaneswarOdisha, India
    19.7
  184. 183SalamancaGuanajuato, Mexico
    19.7
  185. 185Mexico CityMexico City, Mexico
    19.6
  186. 186Hyderabadlow-cost sensorsSindh, Pakistan
    19.5
  187. 186ShivamoggaKarnataka, India
    19.5
  188. 188Pimpri-ChinchwadMaharashtra, India
    19.2
  189. 189Sawai MadhopurRajasthan, India
    19.1
  190. 189RānīganjWest Bengal, India
    19.1
  191. 189NashikMaharashtra, India
    19.1
  192. 192GandhinagarGujarat, India
    18.9
  193. 193ĀsansolWest Bengal, India
    18.8
  194. 194RairangpurOdisha, India
    18.6
  195. 195CallaoCallao, Peru
    18.4
  196. 196VijayapuraKarnataka, India
    18.0
  197. 197GudalurTamil Nadu, India
    17.9
  198. 198DunkirkHauts-de-France, France
    17.8
  199. 199ArrahBihar, India
    17.7
  200. 200Karongalow-cost sensorsNorthern Region, Malawi
    17.6

Top 200 of 2,230 shown.

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