SmogRank / History / October 6, 2024

Most polluted cities on October 6, 2024

1,799 cities ranked by their average PM2.5 over the day; the worst was Kampala, Uganda, at 89.8 µg/m³. Each city's own local calendar day.

Bad-air episodes during October 6, 2024. All episodes.

← Kampala 89.8 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for October 6, 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. 1Kampalalow-cost sensorsCentral Region, Uganda
    1756.0×
  2. 2BeijingBeijing, China
    1725.7×
  3. 3SheridanWyoming, United States
    1715.6×
  4. 4HanoiHanoi, Vietnam
    1685.3×
  5. 5DushanbeDushanbe, Tajikistan
    1634.8×
  6. 6Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1523.8×
  7. 7HyderabadTelangana, India
    1513.7×
  8. 8Santa Anita - Los FicusLima region, Peru
    1503.7×
  9. 9JakartaJakarta, Indonesia
    1413.4×
  10. 10KolkataWest Bengal, India
    1383.4×
  11. 11OsornoLos Lagos Region, Chile
    1313.2×
  12. 12CairoCairo, Egypt
    1293.1×
  13. 13Dhakalow-cost sensorsDhaka Division, Bangladesh
    1283.1×
  14. 14AshgabatAshgabat, Turkmenistan
    1273.1×
  15. 15KanchanaburiKanchanaburi, Thailand
    1253.0×
  16. 15CoyhaiqueAysén, Chile
    1253.0×
  17. 17LimaLima Province, Peru
    1233.0×
  18. 18Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1222.9×
  19. 19ShenyangLiaoning, China
    1212.9×
  20. 20Nong KhaemBangkok, Thailand
    1202.9×
  21. 21La UniónLos Ríos Region, Chile
    1172.8×
  22. 22Lahorelow-cost sensorsPunjab, Pakistan
    1152.7×
  23. 22Samut SakhonSamut Sakhon, Thailand
    1152.7×
  24. 22CoronelBiobio, Chile
    1152.7×
  25. 25Kathmandulow-cost sensorsBagmati Province, Nepal
    1112.6×
  26. 26DelhiDelhi, India
    1102.6×
  27. 27BaghdadBaghdad, Iraq
    1082.6×
  28. 28Vientianelow-cost sensorsVientiane Prefecture, Laos
    1072.5×
  29. 28San Francisco De BorjaLima region, Peru
    1072.5×
  30. 30HualpénBiobio, Chile
    1062.5×
  31. 31NacimientoBiobio, Chile
    1052.5×
  32. 32Sing BuriSing Buri, Thailand
    1032.4×
  33. 33Ban Samae DamBangkok, Thailand
    1022.4×
  34. 34Nakhon PathomNakhon Pathom, Thailand
    1022.4×
  35. 35HualquiBiobio, Chile
    1012.4×
  36. 36MukdahanMukdahan, Thailand
    992.3×
  37. 37KalasinKalasin, Thailand
    982.3×
  38. 38ChiguayanteBiobio, Chile
    982.3×
  39. 39Ubon RatchathaniUbon Ratchathani, Thailand
    972.3×
  40. 40CallaoCallao, Peru
    972.2×
  41. 41Jacobo HunterArequipa, Peru
    962.2×
  42. 42HelenaMontana, United States
    942.2×
  43. 43Puerto VarasLos Lagos Region, Chile
    942.2×
  44. 44ManamaManama, Bahrain
    942.1×
  45. 44Bang NaBangkok, Thailand
    942.1×
  46. 46YasothonYasothon, Thailand
    932.1×
  47. 47Khlong LuangPathum Thani, Thailand
    922.1×
  48. 48TalcahuanoBiobio, Chile
    922.1×
  49. 49Ulan BatorUlaanbaatar, Mongolia
    912.1×
  50. 49Khlong Sam WaBangkok, Thailand
    912.1×
  51. 51ChillánÑuble, Chile
    912.0×
  52. 52SalorTashkent Region, Uzbekistan
    902.0×
  53. 53ChennaiTamil Nadu, India
    902.0×
  54. 54Nakhon RatchasimaNakhon Ratchasima, Thailand
    892.0×
  55. 54Amnat CharoenAmnat Charoen, Thailand
    892.0×
  56. 54ToméBiobio, Chile
    892.0×
  57. 57Puerto AysénAysén, Chile
    892.0×
  58. 58ButteMontana, United States
    881.9×
  59. 59Sakon NakhonSakon Nakhon, Thailand
    881.9×
  60. 59GuangzhouGuangdong, China
    881.9×
  61. 61Grand JunctionColorado, United States
    881.9×
  62. 62RatchaburiRatchaburi, Thailand
    871.9×
  63. 63NanNan, Thailand
    871.9×
  64. 63Lop BuriLopburi, Thailand
    871.9×
  65. 63Wan ChaiWan Chai, Hong Kong
    871.9×
  66. 66BangkokBangkok, Thailand
    871.9×
  67. 67BendOregon, United States
    861.9×
  68. 68Si Maha PhotPrachin Buri, Thailand
    851.8×
  69. 69Buri RamBuriram, Thailand
    851.8×
  70. 70Şabāḩ as SālimMubārak al Kabīr, Kuwait
    841.8×
  71. 71AntofagastaAntofagasta, Chile
    841.8×
  72. 72Udon ThaniUdon Thani, Thailand
    841.8×
  73. 73ConcepciónBiobio, Chile
    831.8×
  74. 74SurinSurin, Thailand
    831.7×
  75. 74Mueang NonthaburiNonthaburi, Thailand
    831.7×
  76. 76TemucoAraucania, Chile
    821.7×
  77. 77Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    821.7×
  78. 78MumbaiMaharashtra, India
    821.7×
  79. 78ChaiyaphumChaiyaphum, Thailand
    821.7×
  80. 78Puente AltoSantiago Metropolitan, Chile
    821.7×
  81. 78YauriCuzco Department, Peru
    821.7×
  82. 82Villa Poeta José Gálvez BarrenecheaLima region, Peru
    811.7×
  83. 83CuricóMaule Region, Chile
    811.7×
  84. 84MaputoMaputo City, Mozambique
    801.6×
  85. 84Los ÁngelesBiobio, Chile
    801.6×
  86. 84CuranilahueBiobio, Chile
    801.6×
  87. 87Tuen MunTuen Mun, Hong Kong
    801.6×
  88. 87ValdiviaLos Ríos Region, Chile
    801.6×
  89. 89LotaBiobio, Chile
    791.6×
  90. 90ZgierzŁódź Voivodeship, Poland
    791.6×
  91. 91Si Sa KetSi Sa Ket, Thailand
    791.6×
  92. 91SantiagoSantiago Metropolitan, Chile
    791.6×
  93. 93ĆuprijaCentral Serbia, Serbia
    791.6×
  94. 93ValjevoCentral Serbia, Serbia
    791.6×
  95. 93Saphan SungBangkok, Thailand
    791.6×
  96. 96GreeleyColorado, United States
    781.6×
  97. 97Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    781.6×
  98. 97ChocopeLa Libertad, Peru
    781.6×
  99. 99CauquenesMaule Region, Chile
    781.6×
  100. 99CasperWyoming, United States
    781.6×
  101. 101Lak SiBangkok, Thailand
    781.6×
  102. 102TratTrat, Thailand
    771.5×
  103. 102SaraburiSaraburi, Thailand
    771.5×
  104. 104Bang Bo DistrictSamut Prakan, Thailand
    771.5×
  105. 104ŁaskŁódź Voivodeship, Poland
    771.5×
  106. 104AricaArica y Parinacota Region, Chile
    771.5×
  107. 104Lat KrabangBangkok, Thailand
    771.5×
  108. 108San Pedro de la PazBiobio, Chile
    771.5×
  109. 109NišCentral Serbia, Serbia
    771.5×
  110. 109Phra PradaengSamut Prakan, Thailand
    771.5×
  111. 111BakuBaki, Azerbaijan
    761.5×
  112. 111LazarevacCentral Serbia, Serbia
    761.5×
  113. 113VillarricaAraucania, Chile
    761.5×
  114. 113YanacanchaPasco, Peru
    761.5×
  115. 115PhetchabunPhetchabun, Thailand
    761.5×
  116. 116YesanChungcheongnam-do, South Korea
    761.5×
  117. 116Fort CollinsColorado, United States
    761.5×
  118. 118TocopillaAntofagasta, Chile
    761.5×
  119. 118TalcaMaule Region, Chile
    761.5×
  120. 120Islamabadlow-cost sensorsIslamabad, Pakistan
    751.5×
  121. 120Jurupa ValleyCalifornia, United States
    751.5×
  122. 122TalaganteSantiago Metropolitan, Chile
    751.5×
  123. 122Sai MaiBangkok, Thailand
    751.5×
  124. 124Suphan BuriSuphan Buri, Thailand
    751.5×
  125. 124Bueng KumBangkok, Thailand
    751.5×
  126. 126Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    741.4×
  127. 127Bang KapiBangkok, Thailand
    741.4×
  128. 127Banja LukaSrpska, Bosnia and Herzegovina
    741.4×
  129. 129South Lake TahoeCalifornia, United States
    741.4×
  130. 130QuillotaValparaiso, Chile
    741.4×
  131. 131Khan Na YaoBangkok, Thailand
    741.4×
  132. 132RiversideCalifornia, United States
    731.4×
  133. 133Ban Khlong PrawetBangkok, Thailand
    731.4×
  134. 133GainesvilleGeorgia, United States
    731.4×
  135. 135Nong ChokBangkok, Thailand
    731.4×
  136. 135BytówPomerania, Poland
    731.4×
  137. 135QuinteroValparaiso, Chile
    731.4×
  138. 138AlgiersAlgiers, Algeria
    721.4×
  139. 138RengoO'Higgins Region, Chile
    721.4×
  140. 140ZemunCentral Serbia, Serbia
    721.4×
  141. 140Asunciónlow-cost sensorsAsuncion, Paraguay
    721.4×
  142. 140QuilpuéValparaiso, Chile
    721.4×
  143. 140Puerto MonttLos Lagos Region, Chile
    721.4×
  144. 144KraljevoCentral Serbia, Serbia
    721.4×
  145. 144Nong Bua LamphuNong Bua Lamphu, Thailand
    721.4×
  146. 144San Tung Chung HangIslands, Hong Kong
    721.4×
  147. 147ConcónValparaiso, Chile
    721.4×
  148. 147BozemanMontana, United States
    721.4×
  149. 149AranyaprathetSa Kaeo, Thailand
    721.3×
  150. 149ThorntonColorado, United States
    721.3×
  151. 151LongmontColorado, United States
    711.3×
  152. 152TangjinChungcheongnam-do, South Korea
    711.3×
  153. 152Viña del MarValparaiso, Chile
    711.3×
  154. 154Los AngelesCalifornia, United States
    711.3×
  155. 155EugeneOregon, United States
    711.3×
  156. 156SmederevoCentral Serbia, Serbia
    701.3×
  157. 156Tin Shui WaiYuen Long, Hong Kong
    701.3×
  158. 158Hwaseong-siGyeonggi-do, South Korea
    701.3×
  159. 159Jastrzębie ZdrójSilesia, Poland
    701.3×
  160. 159RancaguaO'Higgins Region, Chile
    701.3×
  161. 161BartlettTennessee, United States
    701.3×
  162. 162Nakhon SawanNakhon Sawan, Thailand
    701.3×
  163. 163ObrenovacCentral Serbia, Serbia
    691.3×
  164. 163FanlingNorth District, Hong Kong
    691.3×
  165. 165NogalesSonora, Mexico
    691.3×
  166. 166FontanaCalifornia, United States
    691.3×
  167. 167OtwockMazovia, Poland
    691.2×
  168. 167AntananarivoAnalamanga, Madagascar
    691.2×
  169. 169Nakhon NayokNakhon Nayok, Thailand
    691.2×
  170. 170HernandoMississippi, United States
    691.2×
  171. 170Colorado SpringsColorado, United States
    691.2×
  172. 172DenverColorado, United States
    681.2×
  173. 173Ganghwa-gunIncheon, South Korea
    681.2×
  174. 173AugustaGeorgia, United States
    681.2×
  175. 175AnaheimCalifornia, United States
    681.2×
  176. 176HongseongChungcheongnam-do, South Korea
    681.2×
  177. 177SremčicaCentral Serbia, Serbia
    671.2×
  178. 177IncheonIncheon, South Korea
    671.2×
  179. 177Laem ChabangChon Buri, Thailand
    671.2×
  180. 177MissoulaMontana, United States
    671.2×
  181. 177BadgerAlaska, United States
    671.2×
  182. 182KutnoŁódź Voivodeship, Poland
    671.2×
  183. 183FresnoCalifornia, United States
    671.2×
  184. 184RadomMazovia, Poland
    671.2×
  185. 184ČačakCentral Serbia, Serbia
    671.2×
  186. 184KościerzynaPomerania, Poland
    671.2×
  187. 184GlendoraCalifornia, United States
    671.2×
  188. 184LittletonColorado, United States
    671.2×
  189. 189KaliszGreater Poland, Poland
    661.2×
  190. 190Zielona GóraLubusz, Poland
    661.1×
  191. 190Alto HospicioTarapacá, Chile
    661.1×
  192. 190BoulderColorado, United States
    661.1×
  193. 193Mong KokYau Tsim Mong District, Hong Kong
    661.1×
  194. 193Gimpo-siGyeonggi-do, South Korea
    661.1×
  195. 193BirminghamAlabama, United States
    661.1×
  196. 193Arvadalow-cost sensorsColorado, United States
    661.1×
  197. 197CalamaAntofagasta, Chile
    661.1×
  198. 198Karachilow-cost sensorsSindh, Pakistan
    661.1×
  199. 198Little RockArkansas, United States
    661.1×
  200. 200BuanJeollabuk-do, South Korea
    651.1×

Top 200 of 1,799 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, October 6, 2024, smogrank.com/history/2024-10-06 (accessed 3 Oct 2026).

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