SmogRank / History / February 4, 2025

Most polluted cities on February 4, 2025

2,246 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 188.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during February 4, 2025. All episodes.

← Dhaka 188.0 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for February 4, 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
    26312.5×
  2. 2DelhiDelhi, India
    23210.5×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    22810.2×
  4. 3Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    22810.2×
  5. 5DushanbeDushanbe, Tajikistan
    2199.6×
  6. 6YangonYangon, Myanmar
    2189.5×
  7. 7KolkataWest Bengal, India
    2028.5×
  8. 8N'DjamenaN’Djaména, Chad
    2018.4×
  9. 9Kampalalow-cost sensorsCentral Region, Uganda
    1897.3×
  10. 9OpoleOpole Voivodeship, Poland
    1897.3×
  11. 11SalorTashkent Region, Uzbekistan
    1897.3×
  12. 12Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1786.2×
  13. 13KrotoszynGreater Poland, Poland
    1745.9×
  14. 14Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1725.7×
  15. 15Kathmandulow-cost sensorsBagmati Province, Nepal
    1715.6×
  16. 16Almatylow-cost sensorsAlmaty, Kazakhstan
    1705.5×
  17. 17KigaliKigali, Rwanda
    1685.4×
  18. 18BaghdadBaghdad, Iraq
    1675.2×
  19. 19Islamabadlow-cost sensorsIslamabad, Pakistan
    1665.2×
  20. 20Czechowice-DziedziceSilesia, Poland
    1665.1×
  21. 21KłodzkoLower Silesia, Poland
    1655.0×
  22. 22Ulan BatorUlaanbaatar, Mongolia
    1634.9×
  23. 23RacibórzSilesia, Poland
    1624.8×
  24. 24Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1624.8×
  25. 25LubańLower Silesia, Poland
    1614.7×
  26. 26LazarevacCentral Serbia, Serbia
    1594.5×
  27. 27KraljevoCentral Serbia, Serbia
    1594.5×
  28. 29Banja LukaSrpska, Bosnia and Herzegovina
    1584.4×
  29. 30ŻywiecSilesia, Poland
    1584.3×
  30. 31Novi PazarCentral Serbia, Serbia
    1574.3×
  31. 32ObrenovacCentral Serbia, Serbia
    1574.3×
  32. 33SukhothaiSukhothai, Thailand
    1574.3×
  33. 34Bielsko-BialaSilesia, Poland
    1564.2×
  34. 35PoznańGreater Poland, Poland
    1554.1×
  35. 36MumbaiMaharashtra, India
    1554.1×
  36. 36Gorzów WielkopolskiLubusz, Poland
    1554.1×
  37. 38Jelenia GóraLower Silesia, Poland
    1544.0×
  38. 39DejCluj County, Romania
    1544.0×
  39. 40Jastrzębie ZdrójSilesia, Poland
    1544.0×
  40. 41ValjevoCentral Serbia, Serbia
    1533.9×
  41. 42HyderabadTelangana, India
    1523.8×
  42. 43Si Maha PhotPrachin Buri, Thailand
    1523.8×
  43. 43AranyaprathetSa Kaeo, Thailand
    1523.8×
  44. 45CairoCairo, Egypt
    1523.8×
  45. 45Sing BuriSing Buri, Thailand
    1523.8×
  46. 47PhetchaburiPhetchaburi, Thailand
    1513.7×
  47. 48KragujevacCentral Serbia, Serbia
    1503.7×
  48. 49Prachin BuriPrachin Buri, Thailand
    1483.6×
  49. 50Nakhon LuangPhra Nakhon Si Ayutthaya, Thailand
    1473.6×
  50. 51Khlong LuangPathum Thani, Thailand
    1473.6×
  51. 52DěčínÚstí nad Labem Region, Czechia
    1463.6×
  52. 53Khlong Sam WaBangkok, Thailand
    1453.5×
  53. 54LampangLampang, Thailand
    1433.5×
  54. 55PhraePhrae, Thailand
    1423.5×
  55. 56Khan Na YaoBangkok, Thailand
    1423.5×
  56. 57Nong ChokBangkok, Thailand
    1413.5×
  57. 57Kędzierzyn-KoźleOpole Voivodeship, Poland
    1413.5×
  58. 59BerounCentral Bohemia, Czechia
    1403.4×
  59. 60Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1393.4×
  60. 60SremčicaCentral Serbia, Serbia
    1393.4×
  61. 62Bang NaBangkok, Thailand
    1383.4×
  62. 63Ústí nad LabemÚstí nad Labem Region, Czechia
    1373.3×
  63. 63ZgierzŁódź Voivodeship, Poland
    1373.3×
  64. 63Bueng KumBangkok, Thailand
    1373.3×
  65. 66Lop BuriLopburi, Thailand
    1363.3×
  66. 66TepliceÚstí nad Labem Region, Czechia
    1363.3×
  67. 68RzeszówSubcarpathia, Poland
    1363.3×
  68. 69Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1343.3×
  69. 69WłocławekKujawsko-Pomorskie, Poland
    1343.3×
  70. 71BihaćFederation of B&H, Bosnia and Herzegovina
    1343.3×
  71. 71Lak SiBangkok, Thailand
    1343.3×
  72. 73OtwockMazovia, Poland
    1333.2×
  73. 74KaliszGreater Poland, Poland
    1333.2×
  74. 75SaraburiSaraburi, Thailand
    1323.2×
  75. 76RatchaburiRatchaburi, Thailand
    1323.2×
  76. 77NišCentral Serbia, Serbia
    1313.2×
  77. 78Bang KapiBangkok, Thailand
    1313.2×
  78. 79Novi SadVojvodina, Serbia
    1313.2×
  79. 80SmederevoCentral Serbia, Serbia
    1303.2×
  80. 81ZemunCentral Serbia, Serbia
    1303.2×
  81. 82Ban Talat BuengChon Buri, Thailand
    1303.1×
  82. 83Mae SaiChiang Rai, Thailand
    1293.1×
  83. 84DębicaSubcarpathia, Poland
    1283.1×
  84. 85NanNan, Thailand
    1283.1×
  85. 85ShanghaiShanghai, China
    1283.1×
  86. 87Saphan SungBangkok, Thailand
    1263.0×
  87. 88Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1253.0×
  88. 88Mladá BoleslavCentral Bohemia, Czechia
    1253.0×
  89. 90UttaraditUttaradit, Thailand
    1243.0×
  90. 90TratTrat, Thailand
    1243.0×
  91. 92PirotCentral Serbia, Serbia
    1243.0×
  92. 92Sai MaiBangkok, Thailand
    1243.0×
  93. 94UžiceCentral Serbia, Serbia
    1233.0×
  94. 94KoprivnicaKoprivnica-Križevci, Croatia
    1233.0×
  95. 96ČačakCentral Serbia, Serbia
    1233.0×
  96. 97Abujalow-cost sensorsFCT, Nigeria
    1222.9×
  97. 98Chai NatChai Nat, Thailand
    1212.9×
  98. 99PhichitPhichit, Thailand
    1202.9×
  99. 99OstravaMoravian-Silesian Region, Czechia
    1202.9×
  100. 101LitvínovÚstí nad Labem Region, Czechia
    1202.9×
  101. 102CeljeUrban Municipality of Celje, Slovenia
    1192.9×
  102. 103MostÚstí nad Labem Region, Czechia
    1192.8×
  103. 104Mueang NonthaburiNonthaburi, Thailand
    1182.8×
  104. 104MartinŽilina Region, Slovakia
    1182.8×
  105. 106Nong KhaemBangkok, Thailand
    1172.8×
  106. 107PilsenPlzeň Region, Czechia
    1172.8×
  107. 108FlensburgSchleswig-Holstein, Germany
    1172.8×
  108. 109KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1162.8×
  109. 109Valašské MeziříčíZlín, Czechia
    1162.8×
  110. 111LublinLublin, Poland
    1162.8×
  111. 112KielceŚwiętokrzyskie, Poland
    1152.8×
  112. 113KrakówLesser Poland, Poland
    1152.7×
  113. 114Nakhon SawanNakhon Sawan, Thailand
    1152.7×
  114. 114BangkokBangkok, Thailand
    1152.7×
  115. 116PhayaoPhayao, Thailand
    1142.7×
  116. 117HavířovMoravian-Silesian Region, Czechia
    1132.7×
  117. 118BrzegOpole Voivodeship, Poland
    1132.7×
  118. 119Ban Khlong PrawetBangkok, Thailand
    1122.7×
  119. 119FutogVojvodina, Serbia
    1122.7×
  120. 121AshgabatAshgabat, Turkmenistan
    1122.7×
  121. 121MiskolcBorsod-Abaúj-Zemplén, Hungary
    1122.7×
  122. 123Karachilow-cost sensorsSindh, Pakistan
    1112.6×
  123. 124DillingenSaarland, Germany
    1112.6×
  124. 125JinchengFukien, Taiwan
    1112.6×
  125. 126Phra PradaengSamut Prakan, Thailand
    1102.6×
  126. 127BelgradeCentral Serbia, Serbia
    1102.6×
  127. 128RužomberokŽilina Region, Slovakia
    1102.6×
  128. 129WormsRheinland-Pfalz, Germany
    1092.6×
  129. 130Bang Bo DistrictSamut Prakan, Thailand
    1092.6×
  130. 131MainzRheinland-Pfalz, Germany
    1092.6×
  131. 131PraguePrague, Czechia
    1092.6×
  132. 131Frýdek-MístekMoravian-Silesian Region, Czechia
    1092.6×
  133. 131WrocławLower Silesia, Poland
    1092.6×
  134. 135Laem ChabangChon Buri, Thailand
    1082.6×
  135. 136PardubicePardubice Region, Czechia
    1082.6×
  136. 137Nakhon NayokNakhon Nayok, Thailand
    1082.5×
  137. 138PřerovOlomouc Region, Czechia
    1072.5×
  138. 138Lat KrabangBangkok, Thailand
    1072.5×
  139. 140TrierRheinland-Pfalz, Germany
    1072.5×
  140. 141Buri RamBuriram, Thailand
    1062.5×
  141. 141GyőrGyőr-Moson-Sopron, Hungary
    1062.5×
  142. 143Nakhon PathomNakhon Pathom, Thailand
    1062.5×
  143. 143SzczecinWest Pomerania, Poland
    1062.5×
  144. 145NegotinCentral Serbia, Serbia
    1062.5×
  145. 145Ban Samae DamBangkok, Thailand
    1062.5×
  146. 147HamburgHamburg, Germany
    1052.5×
  147. 148ĆuprijaCentral Serbia, Serbia
    1052.5×
  148. 149ŽilinaŽilina Region, Slovakia
    1052.5×
  149. 150BydgoszczKujawsko-Pomorskie, Poland
    1052.5×
  150. 151Kamphaeng PhetKamphaeng Phet, Thailand
    1042.5×
  151. 152PančevoVojvodina, Serbia
    1042.5×
  152. 153ŁaskŁódź Voivodeship, Poland
    1042.4×
  153. 154ChanthaburiChanthaburi, Thailand
    1032.4×
  154. 155KatowiceSilesia, Poland
    1032.4×
  155. 156Khon KaenKhon Kaen, Thailand
    1032.4×
  156. 156GießenHesse, Germany
    1032.4×
  157. 158BremerhavenBremen, Germany
    1032.4×
  158. 159MielecSubcarpathia, Poland
    1022.4×
  159. 159ChennaiTamil Nadu, India
    1022.4×
  160. 159Nakhon RatchasimaNakhon Ratchasima, Thailand
    1022.4×
  161. 159Hradec KrálovéHradec Králové Region, Czechia
    1022.4×
  162. 159KutnoŁódź Voivodeship, Poland
    1022.4×
  163. 164HalstenbekSchleswig-Holstein, Germany
    1022.4×
  164. 165TraunUpper Austria, Austria
    1022.4×
  165. 166PassauBavaria, Germany
    1012.4×
  166. 167BrnoSouth Moravian, Czechia
    1012.4×
  167. 168ŁódźŁódź Voivodeship, Poland
    1012.4×
  168. 169TarnówLesser Poland, Poland
    1002.4×
  169. 170StarachowiceŚwiętokrzyskie, Poland
    992.3×
  170. 170Accralow-cost sensorsGreater Accra, Ghana
    992.3×
  171. 170TrenčínTrenčín Region, Slovakia
    992.3×
  172. 173OlomoucOlomouc Region, Czechia
    992.3×
  173. 174PhetchabunPhetchabun, Thailand
    992.3×
  174. 176RayongRayong, Thailand
    982.3×
  175. 176OldenburgLower Saxony, Germany
    982.3×
  176. 176Novo MestoUrban Municipality of Novo Mesto, Slovenia
    982.3×
  177. 179LoeiLoei, Thailand
    982.3×
  178. 179RostockMecklenburg-Vorpommern, Germany
    982.3×
  179. 179BremenBremen, Germany
    982.3×
  180. 182KanchanaburiKanchanaburi, Thailand
    982.3×
  181. 182PúchovTrenčín Region, Slovakia
    982.3×
  182. 184AugustówPodlasie, Poland
    972.3×
  183. 184Rüsselsheim am MainHesse, Germany
    972.3×
  184. 186Ban ChangRayong, Thailand
    972.3×
  185. 187ToruńKujawsko-Pomorskie, Poland
    972.3×
  186. 187ChiguayanteBiobio, Chile
    972.3×
  187. 189VölklingenSaarland, Germany
    972.2×
  188. 189KielSchleswig-Holstein, Germany
    972.2×
  189. 191BakuBaki, Azerbaijan
    972.2×
  190. 191EschbornHesse, Germany
    972.2×
  191. 191OpavaMoravian-Silesian Region, Czechia
    972.2×
  192. 194NitraNitra Region, Slovakia
    962.2×
  193. 195WilhelmshavenLower Saxony, Germany
    962.2×
  194. 195OytenLower Saxony, Germany
    962.2×
  195. 195LučenecBanská Bystrica Region, Slovakia
    962.2×
  196. 195ČadcaŽilina Region, Slovakia
    962.2×
  197. 199StralsundMecklenburg-Vorpommern, Germany
    962.2×
  198. 199BuxtehudeLower Saxony, Germany
    962.2×

Top 200 of 2,246 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 4, 2025, smogrank.com/history/2025-02-04 (accessed 2 Oct 2026).

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