SmogRank / History / May 17, 2025

Most polluted cities on May 17, 2025

2,095 cities ranked by their average PM2.5 over the day; the worst was Dushanbe, Tajikistan, at 120.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 17, 2025. All episodes.

← Dushanbe 120.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for May 17, 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. 1DushanbeDushanbe, Tajikistan
    1968.0×
  2. 2MuzaffarnagarUttar Pradesh, India
    1947.8×
  3. 3KhannaPunjab, India
    1806.4×
  4. 4RājgīrBihar, India
    1786.3×
  5. 5JalandharPunjab, India
    1695.4×
  6. 6LucknowUttar Pradesh, India
    1675.2×
  7. 7SasarāmBihar, India
    1665.1×
  8. 8LudhianaPunjab, India
    1665.1×
  9. 9Santa Anita - Los FicusLima region, Peru
    1655.0×
  10. 10PatiālaPunjab, India
    1655.0×
  11. 11NacimientoBiobio, Chile
    1645.0×
  12. 12CoyhaiqueAysén, Chile
    1644.9×
  13. 13RamanathapuramTamil Nadu, India
    1584.4×
  14. 14NarelaDelhi, India
    1574.2×
  15. 15BhelaiChhattisgarh, India
    1564.1×
  16. 16AngulOdisha, India
    1554.1×
  17. 17CuddaloreTamil Nadu, India
    1544.0×
  18. 18RengoO'Higgins Region, Chile
    1544.0×
  19. 19KeonjhargarhOdisha, India
    1533.9×
  20. 20HanumāngarhRajasthan, India
    1523.8×
  21. 21Puente AltoSantiago Metropolitan, Chile
    1483.6×
  22. 22SantiagoSantiago Metropolitan, Chile
    1483.6×
  23. 23KanpurUttar Pradesh, India
    1463.6×
  24. 24BawānaDelhi, India
    1463.6×
  25. 25MangaluruKarnataka, India
    1453.6×
  26. 25GayaBihar, India
    1453.6×
  27. 27Islamabadlow-cost sensorsIslamabad, Pakistan
    1423.5×
  28. 28SangāreddiTelangana, India
    1403.4×
  29. 29JodaOdisha, India
    1393.4×
  30. 30PrayagrajUttar Pradesh, India
    1373.3×
  31. 31RourkelaOdisha, India
    1343.3×
  32. 32QuilpuéValparaiso, Chile
    1343.2×
  33. 33GarcíaNuevo León, Mexico
    1333.2×
  34. 34AmritsarPunjab, India
    1333.2×
  35. 34MohaliPunjab, India
    1333.2×
  36. 36KarauliRajasthan, India
    1323.2×
  37. 37GhāziābādUttar Pradesh, India
    1313.2×
  38. 37AnantapurAndhra Pradesh, India
    1313.2×
  39. 37RancaguaO'Higgins Region, Chile
    1313.2×
  40. 40LoniUttar Pradesh, India
    1273.1×
  41. 41Dera MāndiDelhi, India
    1243.0×
  42. 41CuricóMaule Region, Chile
    1243.0×
  43. 41Aya NagarDelhi, India
    1243.0×
  44. 44BrawleyCalifornia, United States
    1243.0×
  45. 45KigaliKigali, Rwanda
    1222.9×
  46. 46ManamaManama, Bahrain
    1202.9×
  47. 46ConcónValparaiso, Chile
    1202.9×
  48. 46LimaLima Province, Peru
    1202.9×
  49. 49CuttackOdisha, India
    1202.9×
  50. 50Sawai MadhopurRajasthan, India
    1192.9×
  51. 50DelhiDelhi, India
    1192.9×
  52. 52Ciudad Benito JuárezNuevo León, Mexico
    1172.8×
  53. 53BarbilOdisha, India
    1152.7×
  54. 54FīrozābādUttar Pradesh, India
    1142.7×
  55. 55RairangpurOdisha, India
    1132.7×
  56. 56Puerto AysénAysén, Chile
    1132.7×
  57. 57KalyānMaharashtra, India
    1132.7×
  58. 58PatnaBihar, India
    1122.7×
  59. 59TalaganteSantiago Metropolitan, Chile
    1112.6×
  60. 60TirupparangunramTamil Nadu, India
    1112.6×
  61. 60BathindaPunjab, India
    1112.6×
  62. 60PithampurMadhya Pradesh, India
    1112.6×
  63. 63AurangābādBihar, India
    1112.6×
  64. 64BhiwandiMaharashtra, India
    1102.6×
  65. 65YasothonYasothon, Thailand
    1102.6×
  66. 66Dubailow-cost sensorsDubai, United Arab Emirates
    1102.6×
  67. 66CholulaPuebla, Mexico
    1102.6×
  68. 68DhuleMaharashtra, India
    1102.6×
  69. 68DhaulpurRajasthan, India
    1102.6×
  70. 70UdaipurRajasthan, India
    1092.6×
  71. 71RishīkeshUttarakhand, India
    1092.6×
  72. 71ChandigarhChandigarh, India
    1092.6×
  73. 73PāliRajasthan, India
    1092.6×
  74. 73BaddiHimachal Pradesh, India
    1092.6×
  75. 75MandideepMadhya Pradesh, India
    1082.6×
  76. 76TirupatiAndhra Pradesh, India
    1082.6×
  77. 76BadlapurMaharashtra, India
    1082.6×
  78. 78NagpurMaharashtra, India
    1082.5×
  79. 78JaipurRajasthan, India
    1082.5×
  80. 78CallaoCallao, Peru
    1082.5×
  81. 81DādriUttar Pradesh, India
    1072.5×
  82. 82San Luis PotosíSan Luis Potosí, Mexico
    1072.5×
  83. 83VijayawadaAndhra Pradesh, India
    1072.5×
  84. 84JhālāwārRajasthan, India
    1062.5×
  85. 85MonterreyNuevo León, Mexico
    1052.5×
  86. 86TocopillaAntofagasta, Chile
    1052.5×
  87. 86Santa CatarinaNuevo León, Mexico
    1052.5×
  88. 88HājīpurBihar, India
    1052.5×
  89. 89HyderabadTelangana, India
    1032.4×
  90. 90AguascalientesAguascalientes, Mexico
    1022.4×
  91. 91NajafgarhDelhi, India
    1022.4×
  92. 92NoidaUttar Pradesh, India
    1012.4×
  93. 93SingrauliMadhya Pradesh, India
    1002.4×
  94. 94JabalpurMadhya Pradesh, India
    1002.3×
  95. 94TulancingoHidalgo, Mexico
    1002.3×
  96. 96MeerutUttar Pradesh, India
    992.3×
  97. 97BegusaraiBihar, India
    992.3×
  98. 98NavalpattuTamil Nadu, India
    992.3×
  99. 98Dera Colliery TownshipOdisha, India
    992.3×
  100. 100AjmerRajasthan, India
    992.3×
  101. 101GandhinagarGujarat, India
    982.3×
  102. 102Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    972.3×
  103. 103MorādābādUttar Pradesh, India
    972.2×
  104. 103JakartaJakarta, Indonesia
    972.2×
  105. 105Viña del MarValparaiso, Chile
    962.2×
  106. 106TehuacánPuebla, Mexico
    962.2×
  107. 107BāghpatUttar Pradesh, India
    962.2×
  108. 107Ciudad General EscobedoNuevo León, Mexico
    962.2×
  109. 109La SerenaCoquimbo Region, Chile
    962.2×
  110. 111Mixquiahuala de JuárezHidalgo, Mexico
    952.2×
  111. 112Hacienda Santa FeJalisco, Mexico
    952.2×
  112. 113San CarlosÑuble, Chile
    942.2×
  113. 114QuinteroValparaiso, Chile
    942.2×
  114. 115PueblaPuebla, Mexico
    942.1×
  115. 116ĀsansolWest Bengal, India
    942.1×
  116. 116AhmedabadGujarat, India
    942.1×
  117. 118KollamKerala, India
    932.1×
  118. 119Naucalpan de JuárezMéxico, Mexico
    932.1×
  119. 120BulandshahrUttar Pradesh, India
    932.1×
  120. 121AtlixcoPuebla, Mexico
    932.1×
  121. 122Addis AbabaAddis Ababa, Ethiopia
    922.1×
  122. 122LinaresMaule Region, Chile
    922.1×
  123. 124MungerBihar, India
    922.1×
  124. 125ThāneMaharashtra, India
    922.1×
  125. 126BhopalMadhya Pradesh, India
    912.1×
  126. 127DamohMadhya Pradesh, India
    912.0×
  127. 127AmaravatiAndhra Pradesh, India
    912.0×
  128. 129KadapaAndhra Pradesh, India
    912.0×
  129. 130VrindāvanUttar Pradesh, India
    912.0×
  130. 131ChennaiTamil Nadu, India
    902.0×
  131. 131AriyalūrTamil Nadu, India
    902.0×
  132. 133Tepeji del Río de OcampoHidalgo, Mexico
    902.0×
  133. 133CoquimboCoquimbo Region, Chile
    902.0×
  134. 133AntofagastaAntofagasta, Chile
    902.0×
  135. 136ChillánÑuble, Chile
    902.0×
  136. 137Sri GanganagarRajasthan, India
    902.0×
  137. 137Wadgaon KolhatiMaharashtra, India
    902.0×
  138. 139TalcaMaule Region, Chile
    902.0×
  139. 139Santiago de QuerétaroQuerétaro, Mexico
    902.0×
  140. 141BilāspurChhattisgarh, India
    892.0×
  141. 141EdinburgTexas, United States
    892.0×
  142. 143DausaRajasthan, India
    892.0×
  143. 144AlangadKerala, India
    892.0×
  144. 145RasapūdipalemAndhra Pradesh, India
    892.0×
  145. 145DehradunUttarakhand, India
    892.0×
  146. 145AlwarRajasthan, India
    892.0×
  147. 148ThrissurKerala, India
    881.9×
  148. 148SaugorMadhya Pradesh, India
    881.9×
  149. 148GwaliorMadhya Pradesh, India
    881.9×
  150. 148Eagle PassTexas, United States
    881.9×
  151. 152Mexico CityMexico City, Mexico
    881.9×
  152. 153ByasanagarOdisha, India
    881.9×
  153. 154TlaquepaqueJalisco, Mexico
    881.9×
  154. 155PatancheruTelangana, India
    871.9×
  155. 155SerilingampalleTelangana, India
    871.9×
  156. 157TirumalaAndhra Pradesh, India
    871.9×
  157. 157BānswāraRajasthan, India
    871.9×
  158. 157AkolaMaharashtra, India
    871.9×
  159. 157Puerto MonttLos Lagos Region, Chile
    871.9×
  160. 161Ciudad NezahualcoyotlMéxico, Mexico
    871.9×
  161. 162BhiwadiRajasthan, India
    861.9×
  162. 163JhānsiUttar Pradesh, India
    861.9×
  163. 164KolhāpurMaharashtra, India
    861.9×
  164. 164San AntonioTexas, United States
    861.9×
  165. 166SīkarRajasthan, India
    861.9×
  166. 167Bang NaBangkok, Thailand
    851.8×
  167. 167ZapopanJalisco, Mexico
    851.8×
  168. 167San Francisco De BorjaLima region, Peru
    851.8×
  169. 170Jardines de la SillaNuevo León, Mexico
    851.8×
  170. 171PanvelMaharashtra, India
    851.8×
  171. 172OotyTamil Nadu, India
    851.8×
  172. 173GummidipundiTamil Nadu, India
    851.8×
  173. 173TlaxcalaTlaxcala, Mexico
    851.8×
  174. 175Bang Pakonglow-cost sensorsChachoengsao, Thailand
    851.8×
  175. 175NeelankaraiTamil Nadu, India
    851.8×
  176. 177San Juan del RíoQuerétaro, Mexico
    841.8×
  177. 178GorakhpurUttar Pradesh, India
    841.8×
  178. 178BaripādaOdisha, India
    841.8×
  179. 180Istanbullow-cost sensorsIstanbul, Turkey
    841.8×
  180. 180DindigulTamil Nadu, India
    841.8×
  181. 180RajākheriMadhya Pradesh, India
    841.8×
  182. 183MuzaffarpurBihar, India
    841.8×
  183. 184RajamahendravaramAndhra Pradesh, India
    831.8×
  184. 184ChūruRajasthan, India
    831.8×
  185. 184Ciudad JuárezChihuahua, Mexico
    831.8×
  186. 187SatnaMadhya Pradesh, India
    831.8×
  187. 188VaranasiUttar Pradesh, India
    831.8×
  188. 189KotaRajasthan, India
    831.7×
  189. 190TambaramTamil Nadu, India
    821.7×
  190. 190Cadereyta JiménezNuevo León, Mexico
    821.7×
  191. 192NashikMaharashtra, India
    821.7×
  192. 193MissionTexas, United States
    821.7×
  193. 194AmravatiMaharashtra, India
    821.7×
  194. 195Ban Samae DamBangkok, Thailand
    811.7×
  195. 196DūngarpurRajasthan, India
    811.7×
  196. 197JhunjhunūnRajasthan, India
    801.7×
  197. 197Live OakTexas, United States
    801.7×
  198. 199KanchanaburiKanchanaburi, Thailand
    801.7×
  199. 199TonkRajasthan, India
    801.7×

Top 200 of 2,095 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

Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, most polluted cities, PM2.5, May 17, 2025, smogrank.com/history/2025-05-17 (accessed 2 Oct 2026).

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