SmogRank / History / February 20, 2024

Most polluted cities on February 20, 2024

2,216 cities ranked by their average PM2.5 over the day; the worst was Dhaka, Bangladesh, at 148.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during February 20, 2024. All episodes.

← Dhaka 148.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for February 20, 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
    2239.9×
  2. 1TlaquepaqueJalisco, Mexico
    2239.9×
  3. 3DelhiDelhi, India
    2119.1×
  4. 4Kathmandulow-cost sensorsBagmati Province, Nepal
    1856.9×
  5. 5Ulan BatorUlaanbaatar, Mongolia
    1745.9×
  6. 6Novi PazarCentral Serbia, Serbia
    1715.6×
  7. 7MilanLombardy, Italy
    1705.5×
  8. 8N'DjamenaN’Djaména, Chad
    1705.5×
  9. 9VigevanoLombardy, Italy
    1695.4×
  10. 10KraljevoCentral Serbia, Serbia
    1675.2×
  11. 11PaviaLombardy, Italy
    1644.9×
  12. 11MantuaLombardy, Italy
    1644.9×
  13. 13DushanbeDushanbe, Tajikistan
    1614.7×
  14. 14LodiLombardy, Italy
    1614.7×
  15. 15KolkataWest Bengal, India
    1614.6×
  16. 16LampangLampang, Thailand
    1604.6×
  17. 17KigaliKigali, Rwanda
    1604.6×
  18. 17BloemfonteinFree State, South Africa
    1604.6×
  19. 19VimercateLombardy, Italy
    1604.5×
  20. 20Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1594.5×
  21. 21NišCentral Serbia, Serbia
    1584.4×
  22. 22Ubon RatchathaniUbon Ratchathani, Thailand
    1574.3×
  23. 23PljevljaPljevlja, Montenegro
    1564.2×
  24. 24AlessandriaPiedmont, Italy
    1564.2×
  25. 25MukdahanMukdahan, Thailand
    1564.1×
  26. 26Mae SotTak, Thailand
    1554.1×
  27. 27KavadarciKavadarci, North Macedonia
    1554.0×
  28. 28NanNan, Thailand
    1533.9×
  29. 29YasothonYasothon, Thailand
    1533.9×
  30. 30Amnat CharoenAmnat Charoen, Thailand
    1513.7×
  31. 31UžiceCentral Serbia, Serbia
    1503.7×
  32. 32GostivarGostivar, North Macedonia
    1473.6×
  33. 33BitolaBitola, North Macedonia
    1473.6×
  34. 34ValjevoCentral Serbia, Serbia
    1463.6×
  35. 35SukhothaiSukhothai, Thailand
    1463.6×
  36. 36PirotCentral Serbia, Serbia
    1453.6×
  37. 37YangonYangon, Myanmar
    1453.6×
  38. 37Banja LukaSrpska, Bosnia and Herzegovina
    1453.6×
  39. 39CapannoriTuscany, Italy
    1423.5×
  40. 40KalasinKalasin, Thailand
    1373.4×
  41. 41KragujevacCentral Serbia, Serbia
    1353.3×
  42. 42Almatylow-cost sensorsAlmaty, Kazakhstan
    1353.3×
  43. 43LazarevacCentral Serbia, Serbia
    1343.3×
  44. 44Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1343.3×
  45. 45SalorTashkent Region, Uzbekistan
    1313.2×
  46. 46DejCluj County, Romania
    1313.2×
  47. 47LamphunLamphun, Thailand
    1313.2×
  48. 48TetovoTetovo, North Macedonia
    1303.1×
  49. 49ErbaLombardy, Italy
    1293.1×
  50. 50PhayaoPhayao, Thailand
    1273.1×
  51. 51ZemunCentral Serbia, Serbia
    1263.1×
  52. 52HyderabadTelangana, India
    1253.0×
  53. 53SmederevoCentral Serbia, Serbia
    1233.0×
  54. 54Si Sa KetSi Sa Ket, Thailand
    1222.9×
  55. 55HanoiHanoi, Vietnam
    1212.9×
  56. 56AlbanyGeorgia, United States
    1212.9×
  57. 57Khon KaenKhon Kaen, Thailand
    1182.8×
  58. 58ČačakCentral Serbia, Serbia
    1182.8×
  59. 59Roi EtRoi Et, Thailand
    1182.8×
  60. 60MumbaiMaharashtra, India
    1172.8×
  61. 61Botevgradlow-cost sensorsSofia, Bulgaria
    1172.8×
  62. 62NovaraPiedmont, Italy
    1172.8×
  63. 63ComoLombardy, Italy
    1162.8×
  64. 64PančevoVojvodina, Serbia
    1162.8×
  65. 65LoeiLoei, Thailand
    1152.8×
  66. 66Cluj-NapocaCluj County, Romania
    1152.7×
  67. 67PhraePhrae, Thailand
    1152.7×
  68. 68Nong Bua LamphuNong Bua Lamphu, Thailand
    1142.7×
  69. 69UttaraditUttaradit, Thailand
    1142.7×
  70. 70ĆuprijaCentral Serbia, Serbia
    1132.7×
  71. 71SkopjeGrad Skopje, North Macedonia
    1122.7×
  72. 72ChennaiTamil Nadu, India
    1122.7×
  73. 73SremčicaCentral Serbia, Serbia
    1112.6×
  74. 74Puerto VarasLos Lagos Region, Chile
    1102.6×
  75. 75MiskolcBorsod-Abaúj-Zemplén, Hungary
    1102.6×
  76. 76Islamabadlow-cost sensorsIslamabad, Pakistan
    1092.6×
  77. 77Udon ThaniUdon Thani, Thailand
    1092.6×
  78. 78CairoCairo, Egypt
    1082.6×
  79. 79TurinPiedmont, Italy
    1082.5×
  80. 80Mae SaiChiang Rai, Thailand
    1062.5×
  81. 81PesaroThe Marches, Italy
    1062.5×
  82. 81AugustaGeorgia, United States
    1062.5×
  83. 83ObrenovacCentral Serbia, Serbia
    1042.5×
  84. 84SurinSurin, Thailand
    1042.4×
  85. 85SarajevoFederation of B&H, Bosnia and Herzegovina
    1032.4×
  86. 86BelgradeCentral Serbia, Serbia
    1032.4×
  87. 87San Salvador TizatlalliMéxico, Mexico
    1012.4×
  88. 88ChaiyaphumChaiyaphum, Thailand
    1002.4×
  89. 89Sevlievolow-cost sensorsGabrovo, Bulgaria
    982.3×
  90. 89TocopillaAntofagasta, Chile
    982.3×
  91. 91BeneventoCampania, Italy
    982.3×
  92. 91AcerraCampania, Italy
    982.3×
  93. 93KošiceKošice Region, Slovakia
    972.3×
  94. 94KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    972.3×
  95. 95Kampalalow-cost sensorsCentral Region, Uganda
    962.2×
  96. 95StrumicaStrumica, North Macedonia
    962.2×
  97. 97Nakhon RatchasimaNakhon Ratchasima, Thailand
    952.2×
  98. 97Falconara MarittimaThe Marches, Italy
    952.2×
  99. 97Ceglie MessapicaApulia, Italy
    952.2×
  100. 100Vranov nad TopľouPrešov Region, Slovakia
    952.2×
  101. 101PhetchabunPhetchabun, Thailand
    942.2×
  102. 102PrešovPrešov Region, Slovakia
    942.1×
  103. 102SaskatoonSaskatchewan, Canada
    942.1×
  104. 104JesiThe Marches, Italy
    942.1×
  105. 105Si Maha PhotPrachin Buri, Thailand
    932.1×
  106. 106Gabrovolow-cost sensorsGabrovo, Bulgaria
    922.1×
  107. 107PinetownKwaZulu-Natal, South Africa
    922.1×
  108. 108TrebišovKošice Region, Slovakia
    912.1×
  109. 108MaconGeorgia, United States
    912.1×
  110. 110AnconaThe Marches, Italy
    902.0×
  111. 111Buri RamBuriram, Thailand
    902.0×
  112. 112OrkneyNorth West, South Africa
    902.0×
  113. 113BraPiedmont, Italy
    892.0×
  114. 114HamarInnlandet, Norway
    881.9×
  115. 115Şabāḩ as SālimMubārak al Kabīr, Kuwait
    881.9×
  116. 116VereenigingGauteng, South Africa
    871.9×
  117. 117Lop BuriLopburi, Thailand
    871.9×
  118. 117Fort SmithArkansas, United States
    871.9×
  119. 119FabrianoThe Marches, Italy
    871.9×
  120. 120PátraWest Greece, Greece
    861.9×
  121. 120VelesVeles, North Macedonia
    861.9×
  122. 122ReginaSaskatchewan, Canada
    861.9×
  123. 123SulphurLouisiana, United States
    851.8×
  124. 124CodleaBrașov County, Romania
    851.8×
  125. 124BardejovPrešov Region, Slovakia
    851.8×
  126. 124PhichitPhichit, Thailand
    851.8×
  127. 127VanderbijlparkGauteng, South Africa
    851.8×
  128. 127Chai NatChai Nat, Thailand
    851.8×
  129. 129Karachilow-cost sensorsSindh, Pakistan
    841.8×
  130. 130HumennéPrešov Region, Slovakia
    841.8×
  131. 131RuseRuse, Bulgaria
    831.8×
  132. 132EvatonGauteng, South Africa
    831.8×
  133. 133Granite CityIllinois, United States
    831.7×
  134. 134Chiang MaiChiang Mai, Thailand
    821.7×
  135. 135MaspalomasCanary Islands, Spain
    821.7×
  136. 136Santa Cruz de TenerifeCanary Islands, Spain
    821.7×
  137. 137Chiang RaiChiang Rai, Thailand
    801.7×
  138. 137BresciaLombardy, Italy
    801.7×
  139. 139Sing BuriSing Buri, Thailand
    801.6×
  140. 140AsprópyrgosAttica, Greece
    791.6×
  141. 140IlindenIlinden, North Macedonia
    791.6×
  142. 142KochaniKochani, North Macedonia
    791.6×
  143. 142OurenseGalicia, Spain
    791.6×
  144. 144Haskovolow-cost sensorsHaskovo, Bulgaria
    791.6×
  145. 145East Saint LouisIllinois, United States
    781.6×
  146. 146FukuyamaHiroshima, Japan
    781.6×
  147. 147HualpénBiobio, Chile
    771.6×
  148. 147MilwaukeeWisconsin, United States
    771.6×
  149. 149RatchaburiRatchaburi, Thailand
    771.5×
  150. 150CraiovaDolj, Romania
    771.5×
  151. 151BorCentral Serbia, Serbia
    771.5×
  152. 151NaplesCampania, Italy
    771.5×
  153. 153Prince GeorgeBritish Columbia, Canada
    761.5×
  154. 154RoveretoTrentino-Alto Adige, Italy
    761.5×
  155. 154SantiagoSantiago Metropolitan, Chile
    761.5×
  156. 154NacimientoBiobio, Chile
    761.5×
  157. 157KanchanaburiKanchanaburi, Thailand
    761.5×
  158. 157BirminghamAlabama, United States
    761.5×
  159. 159SasolburgFree State, South Africa
    751.5×
  160. 159FutogVojvodina, Serbia
    751.5×
  161. 159Puente AltoSantiago Metropolitan, Chile
    751.5×
  162. 162Nakhon SawanNakhon Sawan, Thailand
    751.5×
  163. 163QuinteroValparaiso, Chile
    751.5×
  164. 163Prince AlbertSaskatchewan, Canada
    751.5×
  165. 165Warner RobinsGeorgia, United States
    751.5×
  166. 166EdmontonAlberta, Canada
    741.4×
  167. 167TratTrat, Thailand
    741.4×
  168. 168SaijōEhime, Japan
    741.4×
  169. 168Mollet del VallèsCatalonia, Spain
    741.4×
  170. 170Viña del MarValparaiso, Chile
    741.4×
  171. 171VolosThessaly, Greece
    741.4×
  172. 171South MilwaukeeWisconsin, United States
    741.4×
  173. 173HelenaMontana, United States
    741.4×
  174. 174AntananarivoAnalamanga, Madagascar
    731.4×
  175. 174WaukeshaWisconsin, United States
    731.4×
  176. 176Khlong LuangPathum Thani, Thailand
    731.4×
  177. 176AtlantaGeorgia, United States
    731.4×
  178. 178ValdostaGeorgia, United States
    731.4×
  179. 179San CarlosÑuble, Chile
    731.4×
  180. 179San Pedro de la PazBiobio, Chile
    731.4×
  181. 181CannesProvence-Alpes-Côte d'Azur, France
    731.4×
  182. 181BrookfieldIllinois, United States
    731.4×
  183. 183Bang NaBangkok, Thailand
    721.4×
  184. 184SalamancaGuanajuato, Mexico
    721.4×
  185. 184MontgomeryAlabama, United States
    721.4×
  186. 186PodgoricaPodgorica, Montenegro
    721.4×
  187. 186AsakuchiOkayama, Japan
    721.4×
  188. 188BakuBaki, Azerbaijan
    721.4×
  189. 188St. LouisMissouri, United States
    721.4×
  190. 190Bang Khun ThianBangkok, Thailand
    721.3×
  191. 190ToméBiobio, Chile
    721.3×
  192. 192CuranilahueBiobio, Chile
    711.3×
  193. 193Suphan BuriSuphan Buri, Thailand
    711.3×
  194. 193RancaguaO'Higgins Region, Chile
    711.3×
  195. 195AranyaprathetSa Kaeo, Thailand
    711.3×
  196. 195Las Palmas de Gran CanariaCanary Islands, Spain
    711.3×
  197. 195LučenecBanská Bystrica Region, Slovakia
    711.3×
  198. 195BogotáBogota D.C., Colombia
    711.3×
  199. 199TalcahuanoBiobio, Chile
    711.3×
  200. 199TalaganteSantiago Metropolitan, Chile
    711.3×

Top 200 of 2,216 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 20, 2024, smogrank.com/history/2024-02-20 (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.