SmogRank / History / February 27, 2024

Most polluted cities on February 27, 2024

1,631 cities ranked by their average PM2.5 over the day; the worst was Puerto Montt, Chile, at 137.2 µg/m³. Each city's own local calendar day.

← Puerto Montt 137.2 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for February 27, 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. 1Puerto MonttLos Lagos Region, Chile
    2139.1×
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    1998.3×
  3. 3TlaquepaqueJalisco, Mexico
    1897.3×
  4. 4KolkataWest Bengal, India
    1856.9×
  5. 5N'DjamenaN’Djaména, Chad
    1776.2×
  6. 6Banja LukaSrpska, Bosnia and Herzegovina
    1776.1×
  7. 7ShenyangLiaoning, China
    1685.3×
  8. 8Kathmandulow-cost sensorsBagmati Province, Nepal
    1655.1×
  9. 9MumbaiMaharashtra, India
    1655.0×
  10. 10DushanbeDushanbe, Tajikistan
    1645.0×
  11. 11DelhiDelhi, India
    1584.3×
  12. 12YangonYangon, Myanmar
    1574.3×
  13. 13Ulan BatorUlaanbaatar, Mongolia
    1574.2×
  14. 14Islamabadlow-cost sensorsIslamabad, Pakistan
    1554.1×
  15. 15Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1554.0×
  16. 16AmarilloTexas, United States
    1533.9×
  17. 17TetovoTetovo, North Macedonia
    1513.7×
  18. 18Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1493.7×
  19. 19PljevljaPljevlja, Montenegro
    1473.6×
  20. 20BeijingBeijing, China
    1373.3×
  21. 21Ciudad JuárezChihuahua, Mexico
    1363.3×
  22. 22Abujalow-cost sensorsFCT, Nigeria
    1363.3×
  23. 23Almatylow-cost sensorsAlmaty, Kazakhstan
    1353.3×
  24. 24SalorTashkent Region, Uzbekistan
    1253.0×
  25. 25Novi PazarCentral Serbia, Serbia
    1233.0×
  26. 26UžiceCentral Serbia, Serbia
    1212.9×
  27. 27Khlong LuangPathum Thani, Thailand
    1172.8×
  28. 28Kampalalow-cost sensorsCentral Region, Uganda
    1162.8×
  29. 29DejCluj County, Romania
    1152.8×
  30. 30Nong KhaemBangkok, Thailand
    1082.6×
  31. 31PardubicePardubice Region, Czechia
    1072.5×
  32. 32Ponca CityOklahoma, United States
    1052.5×
  33. 33Mueang NonthaburiNonthaburi, Thailand
    1052.5×
  34. 34GostivarGostivar, North Macedonia
    1022.4×
  35. 35Hradec KrálovéHradec Králové Region, Czechia
    1012.4×
  36. 36Ban Khlong PrawetBangkok, Thailand
    1012.4×
  37. 37San Salvador TizatlalliMéxico, Mexico
    992.3×
  38. 38MiskolcBorsod-Abaúj-Zemplén, Hungary
    992.3×
  39. 39Karachilow-cost sensorsSindh, Pakistan
    972.3×
  40. 39BangkokBangkok, Thailand
    972.3×
  41. 41BeneventoCampania, Italy
    962.2×
  42. 42CairoCairo, Egypt
    962.2×
  43. 43Alto HospicioTarapacá, Chile
    942.2×
  44. 44CelayaGuanajuato, Mexico
    932.1×
  45. 45Nakhon PathomNakhon Pathom, Thailand
    932.1×
  46. 45Bang Bo DistrictSamut Prakan, Thailand
    932.1×
  47. 47PodgoricaPodgorica, Montenegro
    932.1×
  48. 48Phra PradaengSamut Prakan, Thailand
    932.1×
  49. 49Wan ChaiWan Chai, Hong Kong
    922.1×
  50. 50KavadarciKavadarci, North Macedonia
    922.1×
  51. 51BerounCentral Bohemia, Czechia
    912.1×
  52. 52Botevgradlow-cost sensorsSofia, Bulgaria
    912.0×
  53. 53LiègeWallonia, Belgium
    902.0×
  54. 54Wodzisław ŚląskiSilesia, Poland
    902.0×
  55. 55ChennaiTamil Nadu, India
    902.0×
  56. 55DěčínÚstí nad Labem Region, Czechia
    902.0×
  57. 57HyderabadTelangana, India
    892.0×
  58. 58EupenWallonia, Belgium
    892.0×
  59. 59KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    881.9×
  60. 60BogotáBogota D.C., Colombia
    881.9×
  61. 61MissionTexas, United States
    871.9×
  62. 62Samut SakhonSamut Sakhon, Thailand
    871.9×
  63. 62PúchovTrenčín Region, Slovakia
    871.9×
  64. 64GainesvilleGeorgia, United States
    871.9×
  65. 65AstanaAstana, Kazakhstan
    871.9×
  66. 65OpavaMoravian-Silesian Region, Czechia
    871.9×
  67. 67KladnoCentral Bohemia, Czechia
    861.9×
  68. 68Samut PrakanSamut Prakan, Thailand
    861.9×
  69. 68Tuen MunTuen Mun, Hong Kong
    861.9×
  70. 70BakuBaki, Azerbaijan
    861.9×
  71. 70PilsenPlzeň Region, Czechia
    861.9×
  72. 72Silao de la VictoriaGuanajuato, Mexico
    861.8×
  73. 73Mladá BoleslavCentral Bohemia, Czechia
    851.8×
  74. 74Mong KokYau Tsim Mong District, Hong Kong
    851.8×
  75. 75Marche-en-FamenneWallonia, Belgium
    851.8×
  76. 75LučenecBanská Bystrica Region, Slovakia
    851.8×
  77. 77České BudějoviceSouth Bohemian Region, Czechia
    851.8×
  78. 78PezinokBratislava Region, Slovakia
    851.8×
  79. 79Haskovolow-cost sensorsHaskovo, Bulgaria
    851.8×
  80. 80AmmanAmman, Jordan
    841.8×
  81. 80PraguePrague, Czechia
    841.8×
  82. 80Live OakTexas, United States
    841.8×
  83. 83EdinburgTexas, United States
    841.8×
  84. 84Cluj-NapocaCluj County, Romania
    831.8×
  85. 84SarajevoFederation of B&H, Bosnia and Herzegovina
    831.8×
  86. 86TocopillaAntofagasta, Chile
    831.8×
  87. 87PrešovPrešov Region, Slovakia
    831.8×
  88. 88MartinŽilina Region, Slovakia
    831.7×
  89. 88OstravaMoravian-Silesian Region, Czechia
    831.7×
  90. 90LubbockTexas, United States
    821.7×
  91. 91SkopjeGrad Skopje, North Macedonia
    821.7×
  92. 91RužomberokŽilina Region, Slovakia
    821.7×
  93. 93KomárnoNitra Region, Slovakia
    821.7×
  94. 94KošiceKošice Region, Slovakia
    821.7×
  95. 95LitvínovÚstí nad Labem Region, Czechia
    821.7×
  96. 96Puerto VarasLos Lagos Region, Chile
    811.7×
  97. 97VictoriaCentral and Western, Hong Kong
    811.7×
  98. 97AndenneWallonia, Belgium
    811.7×
  99. 97ZvolenBanská Bystrica Region, Slovakia
    811.7×
  100. 97TrnavaTrnava Region, Slovakia
    811.7×
  101. 101SenecBratislava Region, Slovakia
    801.7×
  102. 101IrapuatoGuanajuato, Mexico
    801.7×
  103. 103VelesVeles, North Macedonia
    801.7×
  104. 104HavířovMoravian-Silesian Region, Czechia
    801.6×
  105. 105ŽilinaŽilina Region, Slovakia
    801.6×
  106. 105AthensGeorgia, United States
    801.6×
  107. 107TepliceÚstí nad Labem Region, Czechia
    801.6×
  108. 107SalamancaGuanajuato, Mexico
    801.6×
  109. 109HasseltFlanders, Belgium
    791.6×
  110. 109DearbornMichigan, United States
    791.6×
  111. 111TrebišovKošice Region, Slovakia
    791.6×
  112. 112Flémalle-HauteWallonia, Belgium
    781.6×
  113. 112BratislavaBratislava Region, Slovakia
    781.6×
  114. 114KaunasKaunas, Lithuania
    781.6×
  115. 114AguascalientesAguascalientes, Mexico
    781.6×
  116. 116NamurWallonia, Belgium
    781.6×
  117. 117Tsuen WanTsuen Wan, Hong Kong
    781.6×
  118. 117SantiagoSantiago Metropolitan, Chile
    781.6×
  119. 117ElizabethNew Jersey, United States
    781.6×
  120. 120Birminghamlow-cost sensorsEngland, United Kingdom
    771.6×
  121. 120ČadcaŽilina Region, Slovakia
    771.6×
  122. 122Valašské MeziříčíZlín, Czechia
    771.5×
  123. 123Ústí nad LabemÚstí nad Labem Region, Czechia
    771.5×
  124. 124Kwai ChungKwai Tsing District, Hong Kong
    771.5×
  125. 124MalackyBratislava Region, Slovakia
    771.5×
  126. 124Puente AltoSantiago Metropolitan, Chile
    771.5×
  127. 124San AntonioTexas, United States
    771.5×
  128. 128Vranov nad TopľouPrešov Region, Slovakia
    761.5×
  129. 128Sham Shui PoSham Shui Po District, Hong Kong
    761.5×
  130. 130PrievidzaTrenčín Region, Slovakia
    761.5×
  131. 130Banská BystricaBanská Bystrica Region, Slovakia
    761.5×
  132. 132AntananarivoAnalamanga, Madagascar
    761.5×
  133. 132HandlováTrenčín Region, Slovakia
    761.5×
  134. 132Imperial BeachCalifornia, United States
    761.5×
  135. 135KadaňÚstí nad Labem Region, Czechia
    761.5×
  136. 136SenicaTrnava Region, Slovakia
    761.5×
  137. 137ĆuprijaCentral Serbia, Serbia
    751.5×
  138. 138CharleroiWallonia, Belgium
    751.5×
  139. 139Viña del MarValparaiso, Chile
    751.5×
  140. 139MaconGeorgia, United States
    751.5×
  141. 141AustinTexas, United States
    751.5×
  142. 142QuinteroValparaiso, Chile
    751.5×
  143. 142León de los AldamaGuanajuato, Mexico
    751.5×
  144. 144Tai PoTai Po, Hong Kong
    741.4×
  145. 144San Pawl il-BaħarSaint Paul’s Bay, Malta
    741.4×
  146. 146HanoiHanoi, Vietnam
    741.4×
  147. 147HumennéPrešov Region, Slovakia
    741.4×
  148. 147BitolaBitola, North Macedonia
    741.4×
  149. 147BelgradeCentral Serbia, Serbia
    741.4×
  150. 147ŻabbarĦaż-Żabbar, Malta
    741.4×
  151. 151LiberecLiberec Region, Czechia
    741.4×
  152. 152ThessaloníkiCentral Macedonia, Greece
    741.4×
  153. 152Corpus ChristiTexas, United States
    741.4×
  154. 152HarrisburgPennsylvania, United States
    741.4×
  155. 155NišCentral Serbia, Serbia
    731.4×
  156. 155HouthalenFlanders, Belgium
    731.4×
  157. 155TrenčínTrenčín Region, Slovakia
    731.4×
  158. 158SpartanburgSouth Carolina, United States
    731.4×
  159. 159OlomoucOlomouc Region, Czechia
    731.4×
  160. 159La Crescenta-Montroselow-cost sensorsCalifornia, United States
    731.4×
  161. 161LugoGalicia, Spain
    731.4×
  162. 162Sha TinSha Tin, Hong Kong
    731.4×
  163. 162TřinecMoravian-Silesian Region, Czechia
    731.4×
  164. 164Tin Shui WaiYuen Long, Hong Kong
    721.4×
  165. 164BogatyniaLower Silesia, Poland
    721.4×
  166. 166EsztergomKomárom-Esztergom, Hungary
    721.4×
  167. 167AcerraCampania, Italy
    721.4×
  168. 168NaplesCampania, Italy
    721.4×
  169. 169QuillotaValparaiso, Chile
    711.3×
  170. 169Port HuronMichigan, United States
    711.3×
  171. 171Ulu BedokSingapore
    711.3×
  172. 171Frýdek-MístekMoravian-Silesian Region, Czechia
    711.3×
  173. 173Warner RobinsGeorgia, United States
    711.3×
  174. 174ClevelandOhio, United States
    711.3×
  175. 174SocorroTexas, United States
    711.3×
  176. 174WindsorOntario, Canada
    711.3×
  177. 177StrumicaStrumica, North Macedonia
    711.3×
  178. 177SereďTrnava Region, Slovakia
    711.3×
  179. 177PartizánskeTrenčín Region, Slovakia
    711.3×
  180. 177SokolovCarlsbad Region, Czechia
    711.3×
  181. 181MostaIl-Mosta, Malta
    701.3×
  182. 181AbasoloGuanajuato, Mexico
    701.3×
  183. 181BensalemPennsylvania, United States
    701.3×
  184. 184TalaganteSantiago Metropolitan, Chile
    701.3×
  185. 184DetroitMichigan, United States
    701.3×
  186. 186NitraNitra Region, Slovakia
    701.3×
  187. 187DunaújvárosFejér, Hungary
    701.3×
  188. 187Žiar nad HronomBanská Bystrica Region, Slovakia
    701.3×
  189. 187DallasTexas, United States
    701.3×
  190. 187MilwaukeeWisconsin, United States
    701.3×
  191. 191KlaipėdaKlaipėda County, Lithuania
    691.3×
  192. 191ZnojmoSouth Moravian, Czechia
    691.3×
  193. 191AricaArica y Parinacota Region, Chile
    691.3×
  194. 194RancaguaO'Higgins Region, Chile
    691.3×
  195. 195BrnoSouth Moravian, Czechia
    691.3×
  196. 195CieszynSilesia, Poland
    691.3×
  197. 195ConcónValparaiso, Chile
    691.3×
  198. 195Eagle PassTexas, United States
    691.3×
  199. 199RockfordIllinois, United States
    691.2×
  200. 199LebanonPennsylvania, United States
    691.2×

Top 200 of 1,631 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 27, 2024, smogrank.com/history/2024-02-27 (accessed 3 Oct 2026).

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