SmogRank / History / February 25, 2024

Most polluted cities on February 25, 2024

2,143 cities ranked by their average PM2.5 over the day; the worst was Lampang, Thailand, at 79.6 µg/m³. Each city's own local calendar day.

← Lampang 79.6 µg/m³ 70 µg/m³15 WHO 24-hour guideline
Every city ranked for February 25, 2024, 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. 1LampangLampang, Thailand
    1685.3×
  2. 2DelhiDelhi, India
    1665.1×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    1614.7×
  4. 4SalorTashkent Region, Uzbekistan
    1604.5×
  5. 5Mae SotTak, Thailand
    1594.5×
  6. 6SukhothaiSukhothai, Thailand
    1584.4×
  7. 7ShenyangLiaoning, China
    1564.2×
  8. 8Kathmandulow-cost sensorsBagmati Province, Nepal
    1554.1×
  9. 9N'DjamenaN’Djaména, Chad
    1554.1×
  10. 10YangonYangon, Myanmar
    1554.1×
  11. 11NanNan, Thailand
    1544.0×
  12. 12LamphunLamphun, Thailand
    1544.0×
  13. 13MumbaiMaharashtra, India
    1533.9×
  14. 14Ulan BatorUlaanbaatar, Mongolia
    1513.7×
  15. 15Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1463.6×
  16. 16DushanbeDushanbe, Tajikistan
    1463.6×
  17. 17SarajevoFederation of B&H, Bosnia and Herzegovina
    1453.6×
  18. 18LoeiLoei, Thailand
    1423.5×
  19. 19Islamabadlow-cost sensorsIslamabad, Pakistan
    1383.4×
  20. 20Le RobertMartinique, Martinique
    1353.3×
  21. 21ŻywiecSilesia, Poland
    1313.2×
  22. 22Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1283.1×
  23. 23Almatylow-cost sensorsAlmaty, Kazakhstan
    1273.1×
  24. 24PhayaoPhayao, Thailand
    1263.1×
  25. 25Nakhon RatchasimaNakhon Ratchasima, Thailand
    1263.0×
  26. 26ValjevoCentral Serbia, Serbia
    1243.0×
  27. 27PoznańGreater Poland, Poland
    1233.0×
  28. 28WłocławekKujawsko-Pomorskie, Poland
    1233.0×
  29. 29Mae SaiChiang Rai, Thailand
    1222.9×
  30. 30Banja LukaSrpska, Bosnia and Herzegovina
    1202.9×
  31. 31LazarevacCentral Serbia, Serbia
    1192.9×
  32. 32SurinSurin, Thailand
    1192.9×
  33. 33HyderabadTelangana, India
    1182.8×
  34. 34Nong Bua LamphuNong Bua Lamphu, Thailand
    1182.8×
  35. 35Kamphaeng PhetKamphaeng Phet, Thailand
    1172.8×
  36. 36KourouGuyane, French Guiana
    1172.8×
  37. 37CayenneGuyane, French Guiana
    1172.8×
  38. 38Novi PazarCentral Serbia, Serbia
    1162.8×
  39. 38PhraePhrae, Thailand
    1162.8×
  40. 40PhetchabunPhetchabun, Thailand
    1142.7×
  41. 41UttaraditUttaradit, Thailand
    1132.7×
  42. 42Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1132.7×
  43. 42KalasinKalasin, Thailand
    1132.7×
  44. 42ChaiyaphumChaiyaphum, Thailand
    1132.7×
  45. 42Le LamentinMartinique, Martinique
    1132.7×
  46. 46CairoCairo, Egypt
    1122.7×
  47. 47Les AbymesGuadeloupe, Guadeloupe
    1122.7×
  48. 48DejCluj County, Romania
    1092.6×
  49. 49OpoleOpole Voivodeship, Poland
    1092.6×
  50. 50Buri RamBuriram, Thailand
    1082.6×
  51. 51KigaliKigali, Rwanda
    1062.5×
  52. 51StrumicaStrumica, North Macedonia
    1062.5×
  53. 51Ubon RatchathaniUbon Ratchathani, Thailand
    1062.5×
  54. 54Si Sa KetSi Sa Ket, Thailand
    1052.5×
  55. 55Abujalow-cost sensorsFCT, Nigeria
    1042.5×
  56. 55KościanGreater Poland, Poland
    1042.5×
  57. 57RacibórzSilesia, Poland
    1042.5×
  58. 58DziałdowoWarmia-Masuria, Poland
    1042.4×
  59. 59YasothonYasothon, Thailand
    1032.4×
  60. 59Si Maha PhotPrachin Buri, Thailand
    1032.4×
  61. 61KłodzkoLower Silesia, Poland
    1022.4×
  62. 62LęborkPomerania, Poland
    1012.4×
  63. 63Chai NatChai Nat, Thailand
    1002.4×
  64. 64PhichitPhichit, Thailand
    1002.4×
  65. 64Lop BuriLopburi, Thailand
    1002.4×
  66. 66Khon KaenKhon Kaen, Thailand
    992.3×
  67. 67KanchanaburiKanchanaburi, Thailand
    992.3×
  68. 67ChennaiTamil Nadu, India
    992.3×
  69. 69Udon ThaniUdon Thani, Thailand
    992.3×
  70. 70TetovoTetovo, North Macedonia
    972.3×
  71. 71Bielsko-BialaSilesia, Poland
    972.3×
  72. 72MukdahanMukdahan, Thailand
    952.2×
  73. 73BrakpanGauteng, South Africa
    942.2×
  74. 74PljevljaPljevlja, Montenegro
    932.1×
  75. 75LegionowoMazovia, Poland
    922.1×
  76. 76PretoriaGauteng, South Africa
    922.1×
  77. 76AranyaprathetSa Kaeo, Thailand
    922.1×
  78. 78NišCentral Serbia, Serbia
    912.0×
  79. 78Roi EtRoi Et, Thailand
    912.0×
  80. 78Wodzisław ŚląskiSilesia, Poland
    912.0×
  81. 81KrakówLesser Poland, Poland
    912.0×
  82. 82RatchaburiRatchaburi, Thailand
    912.0×
  83. 83Chiang MaiChiang Mai, Thailand
    902.0×
  84. 83Amnat CharoenAmnat Charoen, Thailand
    902.0×
  85. 85Nakhon SawanNakhon Sawan, Thailand
    892.0×
  86. 86KaliszGreater Poland, Poland
    892.0×
  87. 87eMbalenhleMpumalanga, South Africa
    881.9×
  88. 88Sing BuriSing Buri, Thailand
    881.9×
  89. 89SiedlceMazovia, Poland
    881.9×
  90. 90BucharestBucharest, Romania
    881.9×
  91. 91OtwockMazovia, Poland
    871.9×
  92. 92Cluj-NapocaCluj County, Romania
    861.9×
  93. 92StilfonteinNorth West, South Africa
    861.9×
  94. 94Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    861.9×
  95. 95BydgoszczKujawsko-Pomorskie, Poland
    861.9×
  96. 96Czechowice-DziedziceSilesia, Poland
    851.8×
  97. 97JohannesburgGauteng, South Africa
    851.8×
  98. 97Wan ChaiWan Chai, Hong Kong
    851.8×
  99. 99GostivarGostivar, North Macedonia
    851.8×
  100. 100KavadarciKavadarci, North Macedonia
    841.8×
  101. 101RuseRuse, Bulgaria
    841.8×
  102. 101PruszkówMazovia, Poland
    841.8×
  103. 103ZemunCentral Serbia, Serbia
    841.8×
  104. 103Puerto VarasLos Lagos Region, Chile
    841.8×
  105. 105Los ÁngelesBiobio, Chile
    831.8×
  106. 106PodgoricaPodgorica, Montenegro
    831.7×
  107. 107MarigotSaint Martin
    821.7×
  108. 108Khlong Sam WaBangkok, Thailand
    821.7×
  109. 109BeneventoCampania, Italy
    821.7×
  110. 110KościerzynaPomerania, Poland
    811.7×
  111. 110QuinteroValparaiso, Chile
    811.7×
  112. 112Konstancin-JeziornaMazovia, Poland
    811.7×
  113. 113TocopillaAntofagasta, Chile
    811.7×
  114. 113GulfportMississippi, United States
    811.7×
  115. 115Chiang RaiChiang Rai, Thailand
    801.7×
  116. 115Nakhon NayokNakhon Nayok, Thailand
    801.7×
  117. 115WrocławLower Silesia, Poland
    801.7×
  118. 118VanderbijlparkGauteng, South Africa
    801.7×
  119. 118LimaLima Province, Peru
    801.7×
  120. 120BorCentral Serbia, Serbia
    801.6×
  121. 121ObrenovacCentral Serbia, Serbia
    801.6×
  122. 121TratTrat, Thailand
    801.6×
  123. 121KutnoŁódź Voivodeship, Poland
    801.6×
  124. 121Santa Anita - Los FicusLima region, Peru
    801.6×
  125. 125Nong ChokBangkok, Thailand
    801.6×
  126. 126SaraburiSaraburi, Thailand
    801.6×
  127. 126AguascalientesAguascalientes, Mexico
    801.6×
  128. 126PascagoulaMississippi, United States
    801.6×
  129. 126MarikanaNorth West, South Africa
    801.6×
  130. 130ToruńKujawsko-Pomorskie, Poland
    791.6×
  131. 131SalamancaGuanajuato, Mexico
    791.6×
  132. 132Bang NaBangkok, Thailand
    791.6×
  133. 132CelayaGuanajuato, Mexico
    791.6×
  134. 132AbasoloGuanajuato, Mexico
    791.6×
  135. 135Bang KapiBangkok, Thailand
    781.6×
  136. 135OstravaMoravian-Silesian Region, Czechia
    781.6×
  137. 137CapannoriTuscany, Italy
    781.6×
  138. 137PrichardAlabama, United States
    781.6×
  139. 139Khlong LuangPathum Thani, Thailand
    771.6×
  140. 140Tuen MunTuen Mun, Hong Kong
    771.5×
  141. 140San CarlosÑuble, Chile
    771.5×
  142. 142ŁukówLublin, Poland
    771.5×
  143. 143ThabazimbiLimpopo, South Africa
    771.5×
  144. 143Suphan BuriSuphan Buri, Thailand
    771.5×
  145. 143ŚwiecieKujawsko-Pomorskie, Poland
    771.5×
  146. 146StarachowiceŚwiętokrzyskie, Poland
    761.5×
  147. 146SmederevoCentral Serbia, Serbia
    761.5×
  148. 146HanoiHanoi, Vietnam
    761.5×
  149. 149PirotCentral Serbia, Serbia
    761.5×
  150. 149IrapuatoGuanajuato, Mexico
    761.5×
  151. 151ŻyrardówMazovia, Poland
    761.5×
  152. 151KatowiceSilesia, Poland
    761.5×
  153. 153ThembisaGauteng, South Africa
    751.5×
  154. 154SecundaMpumalanga, South Africa
    751.5×
  155. 154Viña del MarValparaiso, Chile
    751.5×
  156. 156RadomMazovia, Poland
    751.5×
  157. 156PančevoVojvodina, Serbia
    751.5×
  158. 156AstanaAstana, Kazakhstan
    751.5×
  159. 156HualpénBiobio, Chile
    751.5×
  160. 160EłkWarmia-Masuria, Poland
    751.5×
  161. 160DěčínÚstí nad Labem Region, Czechia
    751.5×
  162. 162León de los AldamaGuanajuato, Mexico
    751.5×
  163. 162Saphan SungBangkok, Thailand
    751.5×
  164. 164ČačakCentral Serbia, Serbia
    741.4×
  165. 165BytówPomerania, Poland
    741.4×
  166. 166ToméBiobio, Chile
    741.4×
  167. 166CoronelBiobio, Chile
    741.4×
  168. 168Bang Khun ThianBangkok, Thailand
    741.4×
  169. 168ChillánÑuble, Chile
    741.4×
  170. 168HattiesburgMississippi, United States
    741.4×
  171. 171GdyniaPomerania, Poland
    741.4×
  172. 171TalcahuanoBiobio, Chile
    741.4×
  173. 173ZgierzŁódź Voivodeship, Poland
    731.4×
  174. 173HualquiBiobio, Chile
    731.4×
  175. 173StocktonCalifornia, United States
    731.4×
  176. 176Ban Samae DamBangkok, Thailand
    731.4×
  177. 177Hua HinPrachuap Khiri Khan, Thailand
    731.4×
  178. 177SantiagoSantiago Metropolitan, Chile
    731.4×
  179. 179AlessandriaPiedmont, Italy
    731.4×
  180. 179Imperial BeachCalifornia, United States
    731.4×
  181. 181PułtuskMazovia, Poland
    731.4×
  182. 181Fort SmithArkansas, United States
    731.4×
  183. 181Khan Na YaoBangkok, Thailand
    731.4×
  184. 184TalaganteSantiago Metropolitan, Chile
    721.4×
  185. 185WarsawMazovia, Poland
    721.4×
  186. 185AcerraCampania, Italy
    721.4×
  187. 185Puente AltoSantiago Metropolitan, Chile
    721.4×
  188. 188SkopjeGrad Skopje, North Macedonia
    721.4×
  189. 188NacimientoBiobio, Chile
    721.4×
  190. 188Lat KrabangBangkok, Thailand
    721.4×
  191. 191OlsztynWarmia-Masuria, Poland
    721.4×
  192. 191NogalesArizona, United States
    721.4×
  193. 193EvatonGauteng, South Africa
    721.3×
  194. 193PłockMazovia, Poland
    721.3×
  195. 193Jastrzębie ZdrójSilesia, Poland
    721.3×
  196. 193Ciudad JuárezChihuahua, Mexico
    721.3×
  197. 197BelgradeCentral Serbia, Serbia
    711.3×
  198. 197VereenigingGauteng, South Africa
    711.3×
  199. 199DębicaSubcarpathia, Poland
    711.3×
  200. 199JesiThe Marches, Italy
    711.3×

Top 200 of 2,143 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, February 25, 2024, smogrank.com/history/2024-02-25 (accessed 3 Oct 2026).

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