SmogRank / History / January 28, 2025

Most polluted cities on January 28, 2025

2,214 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 261.0 µg/m³. Each city's own local calendar day.

← Dhaka 261.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 28, 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
    37217.4×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    27713.5×
  3. 3KolkataWest Bengal, India
    24911.6×
  4. 4SalorTashkent Region, Uzbekistan
    23110.4×
  5. 5DushanbeDushanbe, Tajikistan
    2088.9×
  6. 6Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1937.7×
  7. 6DelhiDelhi, India
    1937.7×
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    1897.3×
  9. 9Kampalalow-cost sensorsCentral Region, Uganda
    1877.1×
  10. 10Kathmandulow-cost sensorsBagmati Province, Nepal
    1786.3×
  11. 11Karachilow-cost sensorsSindh, Pakistan
    1766.1×
  12. 12MumbaiMaharashtra, India
    1725.7×
  13. 13ChennaiTamil Nadu, India
    1685.4×
  14. 14HyderabadTelangana, India
    1665.1×
  15. 15ColomboWestern Province, Sri Lanka
    1634.8×
  16. 16Ulan BatorUlaanbaatar, Mongolia
    1624.8×
  17. 17KigaliKigali, Rwanda
    1554.1×
  18. 18Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1544.0×
  19. 19DejCluj County, Romania
    1533.9×
  20. 20Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1413.5×
  21. 21CairoCairo, Egypt
    1403.4×
  22. 21Almatylow-cost sensorsAlmaty, Kazakhstan
    1403.4×
  23. 23N'DjamenaN’Djaména, Chad
    1363.3×
  24. 24YangonYangon, Myanmar
    1333.2×
  25. 25HanoiHanoi, Vietnam
    1283.1×
  26. 26CodleaBrașov County, Romania
    1253.0×
  27. 27RuseRuse, Bulgaria
    1253.0×
  28. 28IrapuatoGuanajuato, Mexico
    1243.0×
  29. 29KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1222.9×
  30. 30Cluj-NapocaCluj County, Romania
    1212.9×
  31. 31Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1202.9×
  32. 32Quezon Citylow-cost sensorsNational Capital Region, Philippines
    1142.7×
  33. 33Abujalow-cost sensorsFCT, Nigeria
    1112.6×
  34. 34BucharestBucharest, Romania
    1082.6×
  35. 35BaghdadBaghdad, Iraq
    1072.5×
  36. 36XonacatlánMéxico, Mexico
    1062.5×
  37. 37Istanbullow-cost sensorsIstanbul, Turkey
    1052.5×
  38. 37Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1052.5×
  39. 39Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1042.5×
  40. 40TolucaMéxico, Mexico
    1042.4×
  41. 41NacimientoBiobio, Chile
    1002.3×
  42. 42ChiguayanteBiobio, Chile
    992.3×
  43. 43ZgierzŁódź Voivodeship, Poland
    992.3×
  44. 44AthensAttica, Greece
    972.3×
  45. 45RacibórzSilesia, Poland
    962.2×
  46. 46Khlong Sam WaBangkok, Thailand
    952.2×
  47. 47WłocławekKujawsko-Pomorskie, Poland
    952.2×
  48. 48Silao de la VictoriaGuanajuato, Mexico
    942.2×
  49. 49LučenecBanská Bystrica Region, Slovakia
    932.1×
  50. 49Lak SiBangkok, Thailand
    932.1×
  51. 51Czechowice-DziedziceSilesia, Poland
    932.1×
  52. 52MiskolcBorsod-Abaúj-Zemplén, Hungary
    922.1×
  53. 52KrotoszynGreater Poland, Poland
    922.1×
  54. 54Accralow-cost sensorsGreater Accra, Ghana
    922.1×
  55. 55Lat KrabangBangkok, Thailand
    912.1×
  56. 56CraiovaDolj, Romania
    912.0×
  57. 57KošiceKošice Region, Slovakia
    902.0×
  58. 58AshgabatAshgabat, Turkmenistan
    892.0×
  59. 58Addis AbabaAddis Ababa, Ethiopia
    892.0×
  60. 60ParklandWashington, United States
    892.0×
  61. 61Nong KhaemBangkok, Thailand
    881.9×
  62. 62ThessaloníkiCentral Macedonia, Greece
    881.9×
  63. 63ShanghaiShanghai, China
    881.9×
  64. 64Ban Samae DamBangkok, Thailand
    871.9×
  65. 64OremUtah, United States
    871.9×
  66. 66AcharnésAttica, Greece
    871.9×
  67. 66Bueng KumBangkok, Thailand
    871.9×
  68. 68BangkokBangkok, Thailand
    851.8×
  69. 69IaşiIași County, Romania
    851.8×
  70. 71PoznańGreater Poland, Poland
    851.8×
  71. 71Grants PassOregon, United States
    851.8×
  72. 73ŻywiecSilesia, Poland
    851.8×
  73. 74Naucalpan de JuárezMéxico, Mexico
    841.8×
  74. 75AugustówPodlasie, Poland
    841.8×
  75. 76LubańLower Silesia, Poland
    841.8×
  76. 77Bang NaBangkok, Thailand
    841.8×
  77. 78Sai MaiBangkok, Thailand
    831.8×
  78. 78Saphan SungBangkok, Thailand
    831.8×
  79. 80Mueang NonthaburiNonthaburi, Thailand
    831.7×
  80. 80CalamaAntofagasta, Chile
    831.7×
  81. 82AsprópyrgosAttica, Greece
    831.7×
  82. 83Bang KapiBangkok, Thailand
    821.7×
  83. 83Khan Na YaoBangkok, Thailand
    821.7×
  84. 85LiepājaLiepaja, Latvia
    821.7×
  85. 86Spanish ForkUtah, United States
    821.7×
  86. 87OpoleOpole Voivodeship, Poland
    811.7×
  87. 88Ciudad NezahualcoyotlMéxico, Mexico
    811.7×
  88. 89WoodburnOregon, United States
    811.7×
  89. 90PiraeusAttica, Greece
    801.7×
  90. 90VarnaVarna, Bulgaria
    801.7×
  91. 90OtwockMazovia, Poland
    801.7×
  92. 93Santiago de QuerétaroQuerétaro, Mexico
    801.6×
  93. 93HelenaMontana, United States
    801.6×
  94. 95Ecatepec de MorelosMéxico, Mexico
    801.6×
  95. 96Tomaszów LubelskiLublin, Poland
    801.6×
  96. 97GdyniaPomerania, Poland
    791.6×
  97. 97AbasoloGuanajuato, Mexico
    791.6×
  98. 99Ban Khlong PrawetBangkok, Thailand
    791.6×
  99. 100HwacheonGangwon-do, South Korea
    791.6×
  100. 100ŁódźŁódź Voivodeship, Poland
    791.6×
  101. 100Mexico CityMexico City, Mexico
    791.6×
  102. 103OlsztynWarmia-Masuria, Poland
    781.6×
  103. 104EłkWarmia-Masuria, Poland
    781.6×
  104. 105MunsanGyeonggi-do, South Korea
    781.6×
  105. 106LublinLublin, Poland
    781.6×
  106. 107Nong ChokBangkok, Thailand
    771.6×
  107. 107GdańskPomerania, Poland
    771.6×
  108. 109ChicoCalifornia, United States
    771.5×
  109. 109PocatelloIdaho, United States
    771.5×
  110. 111RadomMazovia, Poland
    771.5×
  111. 112JinchengFukien, Taiwan
    771.5×
  112. 113KaliszGreater Poland, Poland
    771.5×
  113. 113QuinteroValparaiso, Chile
    771.5×
  114. 113LewistonIdaho, United States
    771.5×
  115. 116KutnoŁódź Voivodeship, Poland
    761.5×
  116. 116San Juan del RíoQuerétaro, Mexico
    761.5×
  117. 118CelayaGuanajuato, Mexico
    761.5×
  118. 119Ganghwa-gunIncheon, South Korea
    761.5×
  119. 120YangguGangwon-do, South Korea
    761.5×
  120. 120TacomaWashington, United States
    761.5×
  121. 122CheorwonGangwon-do, South Korea
    761.5×
  122. 122KatowiceSilesia, Poland
    761.5×
  123. 122San Luis de la PazGuanajuato, Mexico
    761.5×
  124. 125KrakówLesser Poland, Poland
    751.5×
  125. 126ConakryConakry, Guinea
    751.5×
  126. 127Chiayi CityTaiwan, Taiwan
    751.5×
  127. 127TocopillaAntofagasta, Chile
    751.5×
  128. 129RužomberokŽilina Region, Slovakia
    741.4×
  129. 129QuillotaValparaiso, Chile
    741.4×
  130. 131MillcreekUtah, United States
    741.4×
  131. 131CentraliaWashington, United States
    741.4×
  132. 133VentspilsVentspils, Latvia
    741.4×
  133. 133ChaozhouTaiwan, Taiwan
    741.4×
  134. 133Tuen MunTuen Mun, Hong Kong
    741.4×
  135. 133NamyangjuGyeonggi-do, South Korea
    741.4×
  136. 137KlaipėdaKlaipėda County, Lithuania
    741.4×
  137. 137FengshanTakao, Taiwan
    741.4×
  138. 139KosongGangwon-do, South Korea
    731.4×
  139. 139ToruńKujawsko-Pomorskie, Poland
    731.4×
  140. 139Puente AltoSantiago Metropolitan, Chile
    731.4×
  141. 139GuanajuatoGuanajuato, Mexico
    731.4×
  142. 143SalamancaGuanajuato, Mexico
    731.4×
  143. 144WarsawMazovia, Poland
    731.4×
  144. 144HwadoGyeonggi-do, South Korea
    731.4×
  145. 146GuangzhouGuangdong, China
    731.4×
  146. 147PrešovPrešov Region, Slovakia
    721.4×
  147. 147Konstancin-JeziornaMazovia, Poland
    721.4×
  148. 149KaohsiungTakao, Taiwan
    721.4×
  149. 149GwangmyeongGyeonggi-do, South Korea
    721.4×
  150. 151StarachowiceŚwiętokrzyskie, Poland
    721.4×
  151. 151GapyeongGyeonggi-do, South Korea
    721.4×
  152. 151BydgoszczKujawsko-Pomorskie, Poland
    721.4×
  153. 151SantiagoSantiago Metropolitan, Chile
    721.4×
  154. 155ChuncheonGangwon-do, South Korea
    721.4×
  155. 155WabuGyeonggi-do, South Korea
    721.4×
  156. 155ZvolenBanská Bystrica Region, Slovakia
    721.4×
  157. 155ConcónValparaiso, Chile
    721.4×
  158. 159Uijeongbu-siGyeonggi-do, South Korea
    721.3×
  159. 159Gimpo-siGyeonggi-do, South Korea
    721.3×
  160. 159HanamGyeonggi-do, South Korea
    721.3×
  161. 159Port AlberniBritish Columbia, Canada
    721.3×
  162. 163KielceŚwiętokrzyskie, Poland
    711.3×
  163. 163ZhushanTaiwan, Taiwan
    711.3×
  164. 165PruszkówMazovia, Poland
    711.3×
  165. 165MaputoMaputo City, Mozambique
    711.3×
  166. 165Guri-siGyeonggi-do, South Korea
    711.3×
  167. 165ShenyangLiaoning, China
    711.3×
  168. 165ToméBiobio, Chile
    711.3×
  169. 165HualquiBiobio, Chile
    711.3×
  170. 165CuranilahueBiobio, Chile
    711.3×
  171. 172TrebišovKošice Region, Slovakia
    711.3×
  172. 172SeoulSeoul, South Korea
    711.3×
  173. 172Gorzów WielkopolskiLubusz, Poland
    711.3×
  174. 172Viña del MarValparaiso, Chile
    711.3×
  175. 172ConcepciónBiobio, Chile
    711.3×
  176. 172AricaArica y Parinacota Region, Chile
    711.3×
  177. 172LongviewWashington, United States
    711.3×
  178. 172RentonWashington, United States
    711.3×
  179. 172San Pedro de la PazBiobio, Chile
    711.3×
  180. 181CiechanówMazovia, Poland
    711.3×
  181. 181CoronelBiobio, Chile
    711.3×
  182. 183SofiaSofia-Capital, Bulgaria
    711.3×
  183. 183San Miguel de AllendeGuanajuato, Mexico
    711.3×
  184. 185PylaíaCentral Macedonia, Greece
    711.3×
  185. 185LegionowoMazovia, Poland
    711.3×
  186. 185YangjuGyeonggi-do, South Korea
    711.3×
  187. 185PłockMazovia, Poland
    711.3×
  188. 185CoquimboCoquimbo Region, Chile
    711.3×
  189. 190RēzekneRēzekne, Latvia
    701.3×
  190. 191Mission BendTexas, United States
    701.3×
  191. 192AuburnWashington, United States
    701.3×
  192. 193CopiapóAtacama, Chile
    701.3×
  193. 193Missouri CityTexas, United States
    701.3×
  194. 195ŁaskŁódź Voivodeship, Poland
    691.3×
  195. 196Yangp'yŏngGyeonggi-do, South Korea
    691.3×
  196. 196YakimaWashington, United States
    691.3×
  197. 198WawerMazovia, Poland
    691.3×
  198. 198DouliuTaiwan, Taiwan
    691.3×
  199. 198WrocławLower Silesia, Poland
    691.3×

Top 200 of 2,214 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 28, 2025, smogrank.com/history/2025-01-28 (accessed 2 Oct 2026).

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