SmogRank / History / May 22, 2025

Most polluted cities on May 22, 2025

2,676 cities ranked by their average PM2.5 over the day; the worst was Navalpattu, India, at 239.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 22, 2025. All episodes.

← Navalpattu 239.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for May 22, 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. 1NavalpattuTamil Nadu, India
    32815.9×
  2. 2OsornoLos Lagos Region, Chile
    22510.0×
  3. 3TemucoAraucania, Chile
    1988.2×
  4. 4TonkRajasthan, India
    1897.3×
  5. 5Puerto VarasLos Lagos Region, Chile
    1796.4×
  6. 6HualpénBiobio, Chile
    1786.3×
  7. 7Santa Anita - Los FicusLima region, Peru
    1776.1×
  8. 8ChittorgarhRajasthan, India
    1705.5×
  9. 9Dubailow-cost sensorsDubai, United Arab Emirates
    1685.3×
  10. 10NacimientoBiobio, Chile
    1685.3×
  11. 11CuddaloreTamil Nadu, India
    1655.0×
  12. 12JaipurRajasthan, India
    1634.9×
  13. 13CoyhaiqueAysén, Chile
    1624.8×
  14. 14AjmerRajasthan, India
    1594.5×
  15. 15JhālāwārRajasthan, India
    1594.5×
  16. 16DūngarpurRajasthan, India
    1574.3×
  17. 16CuranilahueBiobio, Chile
    1574.3×
  18. 18ValdiviaLos Ríos Region, Chile
    1574.2×
  19. 19BathindaPunjab, India
    1574.2×
  20. 20Sawai MadhopurRajasthan, India
    1564.2×
  21. 21Islamabadlow-cost sensorsIslamabad, Pakistan
    1564.2×
  22. 22CoronelBiobio, Chile
    1564.2×
  23. 23LudhianaPunjab, India
    1564.2×
  24. 24SangāreddiTelangana, India
    1554.1×
  25. 25GobindgarhPunjab, India
    1554.1×
  26. 26Puerto MonttLos Lagos Region, Chile
    1554.0×
  27. 27San CarlosÑuble, Chile
    1533.9×
  28. 28DushanbeDushanbe, Tajikistan
    1523.8×
  29. 29RamanathapuramTamil Nadu, India
    1523.8×
  30. 30KishanganjBihar, India
    1513.7×
  31. 31HanumāngarhRajasthan, India
    1453.6×
  32. 32La UniónLos Ríos Region, Chile
    1433.5×
  33. 33SantiagoSantiago Metropolitan, Chile
    1433.5×
  34. 34ManamaManama, Bahrain
    1413.4×
  35. 35BhelaiChhattisgarh, India
    1353.3×
  36. 36TuxtlaChiapas, Mexico
    1353.3×
  37. 37AnkleshwarGujarat, India
    1343.3×
  38. 38Puerto AysénAysén, Chile
    1323.2×
  39. 39JhunjhunūnRajasthan, India
    1323.2×
  40. 40TalcahuanoBiobio, Chile
    1323.2×
  41. 41PāliRajasthan, India
    1323.2×
  42. 42TalaganteSantiago Metropolitan, Chile
    1293.1×
  43. 43LinaresMaule Region, Chile
    1293.1×
  44. 44ShenyangLiaoning, China
    1273.1×
  45. 45ConcepciónBiobio, Chile
    1253.0×
  46. 46GandhinagarGujarat, India
    1243.0×
  47. 47Puente AltoSantiago Metropolitan, Chile
    1212.9×
  48. 48MuzaffarnagarUttar Pradesh, India
    1212.9×
  49. 49CholulaPuebla, Mexico
    1212.9×
  50. 50Hacienda Santa FeJalisco, Mexico
    1212.9×
  51. 51SīkarRajasthan, India
    1202.9×
  52. 52MangaluruKarnataka, India
    1202.9×
  53. 52UnderaGujarat, India
    1202.9×
  54. 54Bihār SharīfBihar, India
    1172.8×
  55. 55LimaLima Province, Peru
    1162.8×
  56. 55VapiGujarat, India
    1162.8×
  57. 57DhuleMaharashtra, India
    1152.7×
  58. 58AtlixcoPuebla, Mexico
    1142.7×
  59. 59TirupatiAndhra Pradesh, India
    1142.7×
  60. 59RancaguaO'Higgins Region, Chile
    1142.7×
  61. 61AnantapurAndhra Pradesh, India
    1142.7×
  62. 62BaddiHimachal Pradesh, India
    1142.7×
  63. 63GummidipundiTamil Nadu, India
    1132.7×
  64. 64UdaipurRajasthan, India
    1132.7×
  65. 65PatnaBihar, India
    1112.6×
  66. 66JalandharPunjab, India
    1112.6×
  67. 66Sri GanganagarRajasthan, India
    1112.6×
  68. 68CauquenesMaule Region, Chile
    1102.6×
  69. 68AntofagastaAntofagasta, Chile
    1102.6×
  70. 70AhmedabadGujarat, India
    1092.6×
  71. 71VelloreTamil Nadu, India
    1082.6×
  72. 71SrinagarJammu and Kashmir, India
    1082.6×
  73. 73AlwarRajasthan, India
    1072.5×
  74. 74ChillánÑuble, Chile
    1062.5×
  75. 75TlaquepaqueJalisco, Mexico
    1062.5×
  76. 76Aya NagarDelhi, India
    1052.5×
  77. 77RengoO'Higgins Region, Chile
    1052.5×
  78. 78SasarāmBihar, India
    1042.5×
  79. 79KanchipuramTamil Nadu, India
    1042.4×
  80. 80TalcaMaule Region, Chile
    1042.4×
  81. 81AmritsarPunjab, India
    1032.4×
  82. 82TehuacánPuebla, Mexico
    1032.4×
  83. 83CuricóMaule Region, Chile
    1022.4×
  84. 84HājīpurBihar, India
    1012.4×
  85. 85GayaBihar, India
    1002.4×
  86. 86TulancingoHidalgo, Mexico
    1002.3×
  87. 87Ciudad JuárezChihuahua, Mexico
    992.3×
  88. 88BawānaDelhi, India
    992.3×
  89. 88JakartaJakarta, Indonesia
    992.3×
  90. 90NarelaDelhi, India
    992.3×
  91. 90ToméBiobio, Chile
    992.3×
  92. 92BhiwandiMaharashtra, India
    982.3×
  93. 92San Pedro de la PazBiobio, Chile
    982.3×
  94. 94SuratGujarat, India
    982.3×
  95. 95KalyānMaharashtra, India
    982.3×
  96. 96KhannaPunjab, India
    982.3×
  97. 97ChiguayanteBiobio, Chile
    972.3×
  98. 98AurangābādBihar, India
    972.3×
  99. 99KhargharMaharashtra, India
    972.2×
  100. 100AlangadKerala, India
    972.2×
  101. 101ChūruRajasthan, India
    962.2×
  102. 102Ciudad NezahualcoyotlMéxico, Mexico
    952.2×
  103. 103SalemTamil Nadu, India
    952.2×
  104. 104San Francisco De BorjaLima region, Peru
    942.2×
  105. 105PerunduraiTamil Nadu, India
    942.1×
  106. 105KeonjhargarhOdisha, India
    942.1×
  107. 107Tepeji del Río de OcampoHidalgo, Mexico
    932.1×
  108. 108Ban Talat BuengChon Buri, Thailand
    932.1×
  109. 108NeelankaraiTamil Nadu, India
    932.1×
  110. 110PueblaPuebla, Mexico
    932.1×
  111. 111VirārMaharashtra, India
    932.1×
  112. 111BengaluruKarnataka, India
    932.1×
  113. 113Santa AnitaJalisco, Mexico
    912.0×
  114. 114GuadalajaraJalisco, Mexico
    912.0×
  115. 115LucknowUttar Pradesh, India
    902.0×
  116. 116BhiwadiRajasthan, India
    902.0×
  117. 117VijayawadaAndhra Pradesh, India
    902.0×
  118. 118PithampurMadhya Pradesh, India
    902.0×
  119. 119MalegaonMaharashtra, India
    902.0×
  120. 120Mixquiahuala de JuárezHidalgo, Mexico
    892.0×
  121. 121CallaoCallao, Peru
    892.0×
  122. 122BuxarBihar, India
    892.0×
  123. 123ThrissurKerala, India
    892.0×
  124. 123DausaRajasthan, India
    892.0×
  125. 123CoquimboCoquimbo Region, Chile
    892.0×
  126. 126RājsamandRajasthan, India
    881.9×
  127. 127TiruchirappalliTamil Nadu, India
    881.9×
  128. 128RasapūdipalemAndhra Pradesh, India
    881.9×
  129. 129MadikeriKarnataka, India
    881.9×
  130. 129Los ÁngelesBiobio, Chile
    881.9×
  131. 129León de los AldamaGuanajuato, Mexico
    881.9×
  132. 132KohimaNagaland, India
    881.9×
  133. 133SamāstipurBihar, India
    881.9×
  134. 133ChennaiTamil Nadu, India
    881.9×
  135. 135TirumalaAndhra Pradesh, India
    871.9×
  136. 135GoseongGyeongsangnam-do, South Korea
    871.9×
  137. 135TongyeongGyeongsangnam-do, South Korea
    871.9×
  138. 138TirupparangunramTamil Nadu, India
    871.9×
  139. 138ChristchurchCanterbury, New Zealand
    871.9×
  140. 138Mexico CityMexico City, Mexico
    871.9×
  141. 141DelhiDelhi, India
    861.9×
  142. 141Naucalpan de JuárezMéxico, Mexico
    861.9×
  143. 143Samut SakhonSamut Sakhon, Thailand
    861.9×
  144. 143San Martin Texmelucan de LabastidaPuebla, Mexico
    861.9×
  145. 145TomiokaGunma, Japan
    851.8×
  146. 146ZapopanJalisco, Mexico
    851.8×
  147. 147GwaliorMadhya Pradesh, India
    851.8×
  148. 148HyderabadTelangana, India
    851.8×
  149. 148Bang Pakonglow-cost sensorsChachoengsao, Thailand
    851.8×
  150. 150Istanbullow-cost sensorsIstanbul, Turkey
    841.8×
  151. 150Pachuca de SotoHidalgo, Mexico
    841.8×
  152. 152ĀsansolWest Bengal, India
    841.8×
  153. 152AguascalientesAguascalientes, Mexico
    841.8×
  154. 154RangioraCanterbury, New Zealand
    841.8×
  155. 155CoimbatoreTamil Nadu, India
    841.8×
  156. 156QuilpuéValparaiso, Chile
    831.8×
  157. 157QuinteroValparaiso, Chile
    831.8×
  158. 158ConcónValparaiso, Chile
    831.7×
  159. 159Tula de AllendeHidalgo, Mexico
    821.7×
  160. 160PrayagrajUttar Pradesh, India
    821.7×
  161. 161SiwānBihar, India
    821.7×
  162. 161NanNan, Thailand
    821.7×
  163. 161Ban ChangRayong, Thailand
    821.7×
  164. 161Bang NaBangkok, Thailand
    821.7×
  165. 161AricaArica y Parinacota Region, Chile
    821.7×
  166. 166JalorRajasthan, India
    811.7×
  167. 166La SerenaCoquimbo Region, Chile
    811.7×
  168. 168NashikMaharashtra, India
    811.7×
  169. 169ThāneMaharashtra, India
    801.7×
  170. 169KalaburagiKarnataka, India
    801.7×
  171. 169TlaxcalaTlaxcala, Mexico
    801.7×
  172. 169San Luis PotosíSan Luis Potosí, Mexico
    801.7×
  173. 173Duque de CaxiasRio de Janeiro, Brazil
    801.7×
  174. 174KigaliKigali, Rwanda
    801.6×
  175. 175RānipetTamil Nadu, India
    801.6×
  176. 176BoisarMaharashtra, India
    801.6×
  177. 176Wadgaon KolhatiMaharashtra, India
    801.6×
  178. 178NajafgarhDelhi, India
    791.6×
  179. 178Khlong LuangPathum Thani, Thailand
    791.6×
  180. 178ShibukawaGunma, Japan
    791.6×
  181. 181RourkelaOdisha, India
    791.6×
  182. 181Viña del MarValparaiso, Chile
    791.6×
  183. 183DādriUttar Pradesh, India
    781.6×
  184. 184SalamancaGuanajuato, Mexico
    781.6×
  185. 185RānīganjWest Bengal, India
    781.6×
  186. 185Santiago de QuerétaroQuerétaro, Mexico
    781.6×
  187. 187KolkataWest Bengal, India
    771.5×
  188. 188Dera MāndiDelhi, India
    771.5×
  189. 188Villa Poeta José Gálvez BarrenecheaLima region, Peru
    771.5×
  190. 190TambaramTamil Nadu, India
    771.5×
  191. 190BilāspurChhattisgarh, India
    771.5×
  192. 190BārmerRajasthan, India
    771.5×
  193. 190CopiapóAtacama, Chile
    771.5×
  194. 190Victoria de DurangoDurango, Mexico
    771.5×
  195. 190NoidaUttar Pradesh, India
    771.5×
  196. 190Khlong Sam WaBangkok, Thailand
    771.5×
  197. 197Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    761.5×
  198. 197NāgaurRajasthan, India
    761.5×
  199. 199CelayaGuanajuato, Mexico
    761.5×
  200. 200Ban Samae DamBangkok, Thailand
    761.5×

Top 200 of 2,676 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 22, 2025, smogrank.com/history/2025-05-22 (accessed 3 Oct 2026).

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