SmogRank / History / January 27, 2025

Most polluted cities on January 27, 2025

2,182 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 227.0 µg/m³. Each city's own local calendar day.

← Dhaka 227.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 27, 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. 1Dhakalow-cost sensorsDhaka Division, Bangladesh
    30415.1×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    28514.0×
  3. 3KolkataWest Bengal, India
    2219.7×
  4. 4Kampalalow-cost sensorsCentral Region, Uganda
    2179.5×
  5. 5DelhiDelhi, India
    1917.5×
  6. 6SalorTashkent Region, Uzbekistan
    1867.0×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    1856.9×
  8. 8MumbaiMaharashtra, India
    1846.9×
  9. 9Kathmandulow-cost sensorsBagmati Province, Nepal
    1846.8×
  10. 10Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1826.7×
  11. 11DushanbeDushanbe, Tajikistan
    1816.5×
  12. 12ShenyangLiaoning, China
    1766.1×
  13. 13N'DjamenaN’Djaména, Chad
    1745.9×
  14. 14Karachilow-cost sensorsSindh, Pakistan
    1705.5×
  15. 15Ulan BatorUlaanbaatar, Mongolia
    1705.5×
  16. 16CairoCairo, Egypt
    1655.1×
  17. 17CodleaBrașov County, Romania
    1614.7×
  18. 18DejCluj County, Romania
    1604.6×
  19. 19HyderabadTelangana, India
    1584.3×
  20. 20KigaliKigali, Rwanda
    1554.1×
  21. 21YangonYangon, Myanmar
    1554.1×
  22. 22Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1523.8×
  23. 23ChennaiTamil Nadu, India
    1493.7×
  24. 24IrapuatoGuanajuato, Mexico
    1393.4×
  25. 25Istanbullow-cost sensorsIstanbul, Turkey
    1393.4×
  26. 26KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1353.3×
  27. 27LampangLampang, Thailand
    1343.3×
  28. 28Cluj-NapocaCluj County, Romania
    1333.2×
  29. 29MiskolcBorsod-Abaúj-Zemplén, Hungary
    1313.2×
  30. 30CraiovaDolj, Romania
    1263.0×
  31. 31Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1222.9×
  32. 32Abujalow-cost sensorsFCT, Nigeria
    1182.8×
  33. 33Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1162.8×
  34. 34ZemunCentral Serbia, Serbia
    1162.8×
  35. 34HanoiHanoi, Vietnam
    1162.8×
  36. 36ŻywiecSilesia, Poland
    1152.7×
  37. 37Bang NaBangkok, Thailand
    1132.7×
  38. 38PřerovOlomouc Region, Czechia
    1122.7×
  39. 39KošiceKošice Region, Slovakia
    1122.7×
  40. 40Khlong Sam WaBangkok, Thailand
    1092.6×
  41. 41Khan Na YaoBangkok, Thailand
    1092.6×
  42. 42Lat KrabangBangkok, Thailand
    1092.6×
  43. 43AugustówPodlasie, Poland
    1082.6×
  44. 44Bang KapiBangkok, Thailand
    1062.5×
  45. 45Bueng KumBangkok, Thailand
    1062.5×
  46. 46AshgabatAshgabat, Turkmenistan
    1062.5×
  47. 46Nong ChokBangkok, Thailand
    1062.5×
  48. 48Nong KhaemBangkok, Thailand
    1032.4×
  49. 49LučenecBanská Bystrica Region, Slovakia
    1032.4×
  50. 50BaghdadBaghdad, Iraq
    1022.4×
  51. 51Ban Samae DamBangkok, Thailand
    1022.4×
  52. 52Quezon Citylow-cost sensorsNational Capital Region, Philippines
    1002.4×
  53. 53Lak SiBangkok, Thailand
    972.3×
  54. 54BangkokBangkok, Thailand
    972.2×
  55. 55TrebišovKošice Region, Slovakia
    962.2×
  56. 56ShanghaiShanghai, China
    962.2×
  57. 57Saphan SungBangkok, Thailand
    952.2×
  58. 58Ban Khlong PrawetBangkok, Thailand
    952.2×
  59. 59ColomboWestern Province, Sri Lanka
    942.2×
  60. 60Silao de la VictoriaGuanajuato, Mexico
    942.1×
  61. 61Sai MaiBangkok, Thailand
    942.1×
  62. 62Prince GeorgeBritish Columbia, Canada
    922.1×
  63. 63OtwockMazovia, Poland
    922.1×
  64. 64NacimientoBiobio, Chile
    912.0×
  65. 65LazarevacCentral Serbia, Serbia
    912.0×
  66. 66RuseRuse, Bulgaria
    902.0×
  67. 67Grants PassOregon, United States
    902.0×
  68. 68Addis AbabaAddis Ababa, Ethiopia
    892.0×
  69. 69Tomaszów LubelskiLublin, Poland
    892.0×
  70. 70Santa CatarinaNuevo León, Mexico
    892.0×
  71. 71Mueang NonthaburiNonthaburi, Thailand
    881.9×
  72. 72PančevoVojvodina, Serbia
    881.9×
  73. 73Czechowice-DziedziceSilesia, Poland
    881.9×
  74. 74BucharestBucharest, Romania
    871.9×
  75. 75Ecatepec de MorelosMéxico, Mexico
    871.9×
  76. 76ParklandWashington, United States
    861.9×
  77. 77ŁódźŁódź Voivodeship, Poland
    861.9×
  78. 78Ciudad NezahualcoyotlMéxico, Mexico
    851.8×
  79. 78TocopillaAntofagasta, Chile
    851.8×
  80. 80PrešovPrešov Region, Slovakia
    851.8×
  81. 81BelgradeCentral Serbia, Serbia
    841.8×
  82. 82WarsawMazovia, Poland
    831.8×
  83. 82MaputoMaputo City, Mozambique
    831.8×
  84. 82RacibórzSilesia, Poland
    831.8×
  85. 85AcharnésAttica, Greece
    831.8×
  86. 86Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    831.8×
  87. 87AthensAttica, Greece
    831.7×
  88. 88AbasoloGuanajuato, Mexico
    821.7×
  89. 89ZgierzŁódź Voivodeship, Poland
    811.7×
  90. 90KatowiceSilesia, Poland
    811.7×
  91. 91ObrenovacCentral Serbia, Serbia
    811.7×
  92. 92AsprópyrgosAttica, Greece
    811.7×
  93. 93EłkWarmia-Masuria, Poland
    801.6×
  94. 94SuwałkiPodlasie, Poland
    791.6×
  95. 94SalamancaGuanajuato, Mexico
    791.6×
  96. 96BardejovPrešov Region, Slovakia
    791.6×
  97. 96KrakówLesser Poland, Poland
    791.6×
  98. 98PúchovTrenčín Region, Slovakia
    791.6×
  99. 98ChiguayanteBiobio, Chile
    791.6×
  100. 100ZvolenBanská Bystrica Region, Slovakia
    791.6×
  101. 100OpoleOpole Voivodeship, Poland
    791.6×
  102. 100Puente AltoSantiago Metropolitan, Chile
    791.6×
  103. 103TraunUpper Austria, Austria
    781.6×
  104. 103KutnoŁódź Voivodeship, Poland
    781.6×
  105. 105RužomberokŽilina Region, Slovakia
    781.6×
  106. 106Banja LukaSrpska, Bosnia and Herzegovina
    781.6×
  107. 107AmmanAmman, Jordan
    781.6×
  108. 107TongyeongGyeongsangnam-do, South Korea
    781.6×
  109. 107WłocławekKujawsko-Pomorskie, Poland
    781.6×
  110. 110SantiagoSantiago Metropolitan, Chile
    781.6×
  111. 111SofiaSofia-Capital, Bulgaria
    771.6×
  112. 112KlaipėdaKlaipėda County, Lithuania
    771.5×
  113. 112LaceyWashington, United States
    771.5×
  114. 114PruszkówMazovia, Poland
    771.5×
  115. 115PátraWest Greece, Greece
    771.5×
  116. 115Almatylow-cost sensorsAlmaty, Kazakhstan
    771.5×
  117. 115Naucalpan de JuárezMéxico, Mexico
    771.5×
  118. 118ČadcaŽilina Region, Slovakia
    761.5×
  119. 119ThessaloníkiCentral Macedonia, Greece
    761.5×
  120. 119RadomMazovia, Poland
    761.5×
  121. 119Spanish ForkUtah, United States
    761.5×
  122. 122Konstancin-JeziornaMazovia, Poland
    761.5×
  123. 123KielceŚwiętokrzyskie, Poland
    761.5×
  124. 123Mexico CityMexico City, Mexico
    761.5×
  125. 123CalamaAntofagasta, Chile
    761.5×
  126. 126GumiGyeongsangbuk-do, South Korea
    751.5×
  127. 127KaunasKaunas, Lithuania
    751.5×
  128. 127QuillotaValparaiso, Chile
    751.5×
  129. 129VarnaVarna, Bulgaria
    751.5×
  130. 130OlsztynWarmia-Masuria, Poland
    751.5×
  131. 131WawerMazovia, Poland
    741.4×
  132. 132BiałystokPodlasie, Poland
    741.4×
  133. 132Banská BystricaBanská Bystrica Region, Slovakia
    741.4×
  134. 132BrunswickGeorgia, United States
    741.4×
  135. 132TacomaWashington, United States
    741.4×
  136. 136ŁaskŁódź Voivodeship, Poland
    741.4×
  137. 137WŏnjuGangwon-do, South Korea
    741.4×
  138. 137DěčínÚstí nad Labem Region, Czechia
    741.4×
  139. 139AstanaAstana, Kazakhstan
    741.4×
  140. 139Port AlberniBritish Columbia, Canada
    741.4×
  141. 141LegionowoMazovia, Poland
    731.4×
  142. 142BerounCentral Bohemia, Czechia
    731.4×
  143. 142PłockMazovia, Poland
    731.4×
  144. 142QuinteroValparaiso, Chile
    731.4×
  145. 145OlomoucOlomouc Region, Czechia
    731.4×
  146. 145ElblągWarmia-Masuria, Poland
    731.4×
  147. 147TalaganteSantiago Metropolitan, Chile
    721.4×
  148. 148CheorwonGangwon-do, South Korea
    721.4×
  149. 148HelenaMontana, United States
    721.4×
  150. 150LinzUpper Austria, Austria
    721.4×
  151. 150ToruńKujawsko-Pomorskie, Poland
    721.4×
  152. 152SiedlceMazovia, Poland
    721.4×
  153. 152KaliszGreater Poland, Poland
    721.4×
  154. 154SzegedCsongrád, Hungary
    711.3×
  155. 154GdyniaPomerania, Poland
    711.3×
  156. 157YeongjuGyeongsangbuk-do, South Korea
    711.3×
  157. 157MontpellierOccitanie, France
    711.3×
  158. 157ConcónValparaiso, Chile
    711.3×
  159. 157AricaArica y Parinacota Region, Chile
    711.3×
  160. 157RentonWashington, United States
    711.3×
  161. 162StarachowiceŚwiętokrzyskie, Poland
    711.3×
  162. 162Jastrzębie ZdrójSilesia, Poland
    711.3×
  163. 162CopiapóAtacama, Chile
    711.3×
  164. 165LublinLublin, Poland
    711.3×
  165. 166KinzanChungcheongnam-do, South Korea
    711.3×
  166. 166ThorntonColorado, United States
    711.3×
  167. 168Ganghwa-gunIncheon, South Korea
    701.3×
  168. 169WelsUpper Austria, Austria
    701.3×
  169. 169CoquimboCoquimbo Region, Chile
    701.3×
  170. 171Viña del MarValparaiso, Chile
    701.3×
  171. 171CentraliaWashington, United States
    701.3×
  172. 174ŽilinaŽilina Region, Slovakia
    701.3×
  173. 174Žiar nad HronomBanská Bystrica Region, Slovakia
    701.3×
  174. 174Santa Anita - Los FicusLima region, Peru
    701.3×
  175. 177YeongdongNorth Chungcheong, South Korea
    701.3×
  176. 177MurciaMurcia, Spain
    701.3×
  177. 177Sankt PöltenLower Austria, Austria
    701.3×
  178. 180IaşiIași County, Romania
    691.3×
  179. 180HumennéPrešov Region, Slovakia
    691.3×
  180. 180SangjuGyeongsangbuk-do, South Korea
    691.3×
  181. 180AntofagastaAntofagasta, Chile
    691.3×
  182. 184GimcheonGyeongsangbuk-do, South Korea
    691.3×
  183. 184PoznańGreater Poland, Poland
    691.3×
  184. 184OremUtah, United States
    691.3×
  185. 187CiechanówMazovia, Poland
    691.3×
  186. 187GunsanJeollabuk-do, South Korea
    691.3×
  187. 187GdańskPomerania, Poland
    691.3×
  188. 187San Francisco De BorjaLima region, Peru
    691.3×
  189. 191ŻyrardówMazovia, Poland
    691.2×
  190. 191GuanajuatoGuanajuato, Mexico
    691.2×
  191. 193PubalGyeonggi-do, South Korea
    691.2×
  192. 193GreeleyColorado, United States
    691.2×
  193. 195MartinŽilina Region, Slovakia
    691.2×
  194. 195San Miguel de AllendeGuanajuato, Mexico
    691.2×
  195. 195San Luis de la PazGuanajuato, Mexico
    691.2×
  196. 195LewistonIdaho, United States
    691.2×
  197. 195Spokane ValleyWashington, United States
    691.2×

Top 200 of 2,182 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

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SmogRank, most polluted cities, PM2.5, January 27, 2025, smogrank.com/history/2025-01-27 (accessed 2 Oct 2026).

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