SmogRank / History / February 4, 2024

Most polluted cities on February 4, 2024

2,160 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 221.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during February 4, 2024. All episodes.

← Dhaka 221.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for February 4, 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. 1Dhakalow-cost sensorsDhaka Division, Bangladesh
    29614.7×
  2. 2DelhiDelhi, India
    2179.5×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    2048.6×
  4. 3Banja LukaSrpska, Bosnia and Herzegovina
    2048.6×
  5. 5TlaquepaqueJalisco, Mexico
    2028.5×
  6. 6Abujalow-cost sensorsFCT, Nigeria
    1917.5×
  7. 7Novi PazarCentral Serbia, Serbia
    1877.1×
  8. 8PljevljaPljevlja, Montenegro
    1826.6×
  9. 9Kathmandulow-cost sensorsBagmati Province, Nepal
    1816.5×
  10. 10BeijingBeijing, China
    1806.5×
  11. 11N'DjamenaN’Djaména, Chad
    1806.5×
  12. 12BitolaBitola, North Macedonia
    1796.4×
  13. 13SkopjeGrad Skopje, North Macedonia
    1776.1×
  14. 14ShenyangLiaoning, China
    1766.1×
  15. 15Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1766.1×
  16. 16TetovoTetovo, North Macedonia
    1766.0×
  17. 17StrumicaStrumica, North Macedonia
    1756.0×
  18. 18GostivarGostivar, North Macedonia
    1705.5×
  19. 19CairoCairo, Egypt
    1705.5×
  20. 20SarajevoFederation of B&H, Bosnia and Herzegovina
    1705.5×
  21. 21MumbaiMaharashtra, India
    1695.4×
  22. 22Ubon RatchathaniUbon Ratchathani, Thailand
    1695.4×
  23. 23Ulan BatorUlaanbaatar, Mongolia
    1685.3×
  24. 24NišCentral Serbia, Serbia
    1675.2×
  25. 25KavadarciKavadarci, North Macedonia
    1645.0×
  26. 26MantuaLombardy, Italy
    1644.9×
  27. 26PodgoricaPodgorica, Montenegro
    1644.9×
  28. 28Karachilow-cost sensorsSindh, Pakistan
    1634.9×
  29. 29MukdahanMukdahan, Thailand
    1614.6×
  30. 30Kampalalow-cost sensorsCentral Region, Uganda
    1604.6×
  31. 31YangonYangon, Myanmar
    1594.4×
  32. 32HyderabadTelangana, India
    1584.4×
  33. 33DejCluj County, Romania
    1584.3×
  34. 34BresciaLombardy, Italy
    1564.2×
  35. 35Khon KaenKhon Kaen, Thailand
    1544.0×
  36. 36Almatylow-cost sensorsAlmaty, Kazakhstan
    1533.9×
  37. 37KigaliKigali, Rwanda
    1533.9×
  38. 37PhraePhrae, Thailand
    1533.9×
  39. 39DushanbeDushanbe, Tajikistan
    1533.8×
  40. 40KalasinKalasin, Thailand
    1523.8×
  41. 41IlindenIlinden, North Macedonia
    1513.7×
  42. 42YasothonYasothon, Thailand
    1503.7×
  43. 43MilanLombardy, Italy
    1483.6×
  44. 44UžiceCentral Serbia, Serbia
    1463.6×
  45. 45PhayaoPhayao, Thailand
    1453.6×
  46. 46Amnat CharoenAmnat Charoen, Thailand
    1443.5×
  47. 47VolosThessaly, Greece
    1403.4×
  48. 48BeneventoCampania, Italy
    1373.3×
  49. 49SurinSurin, Thailand
    1363.3×
  50. 50LampangLampang, Thailand
    1363.3×
  51. 51ZemunCentral Serbia, Serbia
    1343.3×
  52. 52VelesVeles, North Macedonia
    1343.2×
  53. 53Islamabadlow-cost sensorsIslamabad, Pakistan
    1333.2×
  54. 54Mae SaiChiang Rai, Thailand
    1323.2×
  55. 54Nakhon RatchasimaNakhon Ratchasima, Thailand
    1323.2×
  56. 56CapannoriTuscany, Italy
    1283.1×
  57. 57LazarevacCentral Serbia, Serbia
    1253.0×
  58. 58PhetchabunPhetchabun, Thailand
    1233.0×
  59. 59Si Maha PhotPrachin Buri, Thailand
    1222.9×
  60. 60ChaiyaphumChaiyaphum, Thailand
    1222.9×
  61. 61ComoLombardy, Italy
    1172.8×
  62. 61Viña del MarValparaiso, Chile
    1172.8×
  63. 63ErbaLombardy, Italy
    1152.7×
  64. 64Nong Bua LamphuNong Bua Lamphu, Thailand
    1142.7×
  65. 65Sakon NakhonSakon Nakhon, Thailand
    1132.7×
  66. 65Ceglie MessapicaApulia, Italy
    1132.7×
  67. 67Buri RamBuriram, Thailand
    1122.7×
  68. 68Chai NatChai Nat, Thailand
    1122.7×
  69. 69Ban Samae DamBangkok, Thailand
    1112.6×
  70. 70VimercateLombardy, Italy
    1112.6×
  71. 71NanNan, Thailand
    1102.6×
  72. 72Mae SotTak, Thailand
    1092.6×
  73. 72Lop BuriLopburi, Thailand
    1092.6×
  74. 74PhichitPhichit, Thailand
    1062.5×
  75. 75KochaniKochani, North Macedonia
    1062.5×
  76. 75SukhothaiSukhothai, Thailand
    1062.5×
  77. 77Udon ThaniUdon Thani, Thailand
    1052.5×
  78. 78LamphunLamphun, Thailand
    1052.5×
  79. 78Chiang RaiChiang Rai, Thailand
    1052.5×
  80. 80ĆuprijaCentral Serbia, Serbia
    1042.4×
  81. 81Nakhon SawanNakhon Sawan, Thailand
    1042.4×
  82. 82SalorTashkent Region, Uzbekistan
    1032.4×
  83. 83Sing BuriSing Buri, Thailand
    1032.4×
  84. 84PančevoVojvodina, Serbia
    1022.4×
  85. 85TalaganteSantiago Metropolitan, Chile
    1022.4×
  86. 86Botevgradlow-cost sensorsSofia, Bulgaria
    1012.4×
  87. 87RatchaburiRatchaburi, Thailand
    1002.3×
  88. 88PristinaPristina, Kosovo
    992.3×
  89. 88PinetownKwaZulu-Natal, South Africa
    992.3×
  90. 90BailénAndalusia, Spain
    992.3×
  91. 91Haskovolow-cost sensorsHaskovo, Bulgaria
    982.3×
  92. 91Chiang MaiChiang Mai, Thailand
    982.3×
  93. 93FréjusProvence-Alpes-Côte d'Azur, France
    982.3×
  94. 94ParedesPorto, Portugal
    982.3×
  95. 95TalcahuanoBiobio, Chile
    972.3×
  96. 96Bang NaBangkok, Thailand
    972.2×
  97. 97HualpénBiobio, Chile
    962.2×
  98. 98ManlleuCatalonia, Spain
    962.2×
  99. 99HanoiHanoi, Vietnam
    962.2×
  100. 99SantiagoSantiago Metropolitan, Chile
    962.2×
  101. 101NovaraPiedmont, Italy
    942.1×
  102. 102BelgradeCentral Serbia, Serbia
    932.1×
  103. 102HualquiBiobio, Chile
    932.1×
  104. 104HumennéPrešov Region, Slovakia
    932.1×
  105. 105BakuBaki, Azerbaijan
    932.1×
  106. 106OurenseGalicia, Spain
    932.1×
  107. 107NacimientoBiobio, Chile
    932.1×
  108. 108Khlong Sam WaBangkok, Thailand
    922.1×
  109. 109Cluj-NapocaCluj County, Romania
    922.1×
  110. 109ObrenovacCentral Serbia, Serbia
    922.1×
  111. 111SallanchesAuvergne-Rhône-Alpes, France
    912.1×
  112. 112QuinteroValparaiso, Chile
    912.0×
  113. 112Lat KrabangBangkok, Thailand
    912.0×
  114. 114GrazStyria, Austria
    912.0×
  115. 115VigoGalicia, Spain
    912.0×
  116. 116Khlong LuangPathum Thani, Thailand
    902.0×
  117. 117PhuketPhuket, Thailand
    892.0×
  118. 118GrenobleAuvergne-Rhône-Alpes, France
    892.0×
  119. 119SremčicaCentral Serbia, Serbia
    892.0×
  120. 119eMbalenhleMpumalanga, South Africa
    892.0×
  121. 121Nong KhaemBangkok, Thailand
    892.0×
  122. 121Saphan SungBangkok, Thailand
    892.0×
  123. 123PesaroThe Marches, Italy
    881.9×
  124. 124AcerraCampania, Italy
    881.9×
  125. 125AranyaprathetSa Kaeo, Thailand
    881.9×
  126. 126San CarlosÑuble, Chile
    871.9×
  127. 127Khan Na YaoBangkok, Thailand
    871.9×
  128. 128Suphan BuriSuphan Buri, Thailand
    871.9×
  129. 128Nakhon NayokNakhon Nayok, Thailand
    871.9×
  130. 130Bang KapiBangkok, Thailand
    871.9×
  131. 131Bueng KumBangkok, Thailand
    861.9×
  132. 132LoeiLoei, Thailand
    861.9×
  133. 132BorgomaneroPiedmont, Italy
    861.9×
  134. 132CoquimboCoquimbo Region, Chile
    861.9×
  135. 135BangkokBangkok, Thailand
    861.9×
  136. 135Puerto del RosarioCanary Islands, Spain
    861.9×
  137. 137Puente AltoSantiago Metropolitan, Chile
    861.8×
  138. 138TratTrat, Thailand
    851.8×
  139. 138Nong ChokBangkok, Thailand
    851.8×
  140. 138CuricóMaule Region, Chile
    851.8×
  141. 141Bang Bo DistrictSamut Prakan, Thailand
    851.8×
  142. 141LimaLima Province, Peru
    851.8×
  143. 143AmoraSetúbal, Portugal
    841.8×
  144. 143TarbesOccitanie, France
    841.8×
  145. 145SaraburiSaraburi, Thailand
    841.8×
  146. 146MaspalomasCanary Islands, Spain
    841.8×
  147. 146Lak SiBangkok, Thailand
    841.8×
  148. 148LodiLombardy, Italy
    831.8×
  149. 149Klagenfurt am WörtherseeCarinthia, Austria
    831.7×
  150. 149Mollet del VallèsCatalonia, Spain
    831.7×
  151. 151RanongRanong province, Thailand
    821.7×
  152. 152ConcónValparaiso, Chile
    821.7×
  153. 153LourdesOccitanie, France
    821.7×
  154. 153Sai MaiBangkok, Thailand
    821.7×
  155. 155Falconara MarittimaThe Marches, Italy
    811.7×
  156. 156Hua HinPrachuap Khiri Khan, Thailand
    811.7×
  157. 156Phra PradaengSamut Prakan, Thailand
    811.7×
  158. 156Ban Khlong PrawetBangkok, Thailand
    811.7×
  159. 156PuertollanoCastille-La Mancha, Spain
    811.7×
  160. 156La SerenaCoquimbo Region, Chile
    811.7×
  161. 161Mueang NonthaburiNonthaburi, Thailand
    811.7×
  162. 162Surat ThaniSurat Thani, Thailand
    811.7×
  163. 162NogalesArizona, United States
    811.7×
  164. 164VigevanoLombardy, Italy
    801.7×
  165. 165KošiceKošice Region, Slovakia
    801.6×
  166. 165PhetchaburiPhetchaburi, Thailand
    801.6×
  167. 165LleidaCatalonia, Spain
    801.6×
  168. 168Los ÁngelesBiobio, Chile
    791.6×
  169. 169Nakhon PathomNakhon Pathom, Thailand
    791.6×
  170. 170JohannesburgGauteng, South Africa
    791.6×
  171. 170ChanthaburiChanthaburi, Thailand
    791.6×
  172. 172SmederevoCentral Serbia, Serbia
    791.6×
  173. 172Laem ChabangChon Buri, Thailand
    791.6×
  174. 174Samut SakhonSamut Sakhon, Thailand
    781.6×
  175. 175Şabāḩ as SālimMubārak al Kabīr, Kuwait
    781.6×
  176. 175SatunSatun, Thailand
    781.6×
  177. 177WolfsbergCarinthia, Austria
    781.6×
  178. 178MeylanAuvergne-Rhône-Alpes, France
    781.6×
  179. 179AlbertvilleAuvergne-Rhône-Alpes, France
    781.6×
  180. 179CoronelBiobio, Chile
    781.6×
  181. 181Ban ChangRayong, Thailand
    771.6×
  182. 182UttaraditUttaradit, Thailand
    771.5×
  183. 182PauNew Aquitaine, France
    771.5×
  184. 182TalcaMaule Region, Chile
    771.5×
  185. 185BilbaoBasque Country, Spain
    771.5×
  186. 186SecundaMpumalanga, South Africa
    771.5×
  187. 186DearbornMichigan, United States
    771.5×
  188. 188ColomboWestern Province, Sri Lanka
    771.5×
  189. 188PécsBaranya, Hungary
    771.5×
  190. 190CelayaGuanajuato, Mexico
    761.5×
  191. 190Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    761.5×
  192. 192Lincoln ParkMichigan, United States
    761.5×
  193. 193RancaguaO'Higgins Region, Chile
    751.5×
  194. 194Vranov nad TopľouPrešov Region, Slovakia
    751.5×
  195. 195Ban Talat BuengChon Buri, Thailand
    751.5×
  196. 195A CoruñaGalicia, Spain
    751.5×
  197. 195JesiThe Marches, Italy
    751.5×
  198. 198Molina de SeguraMurcia, Spain
    751.5×
  199. 198NaplesCampania, Italy
    751.5×
  200. 200DurangoBasque Country, Spain
    751.5×

Top 200 of 2,160 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, 2024, smogrank.com/history/2024-02-04 (accessed 3 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.