SmogRank / History / August 12, 2023

Most polluted cities on August 12, 2023

2,029 cities ranked by their average PM2.5 over the day; the worst was Manama, Bahrain, at 193.0 µg/m³. Each city's own local calendar day.

← Manama 193.0 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for August 12, 2023, 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. 1ManamaManama, Bahrain
    26812.9×
  2. 2Puerto VarasLos Lagos Region, Chile
    22910.3×
  3. 3CoyhaiqueAysén, Chile
    1725.7×
  4. 4OsornoLos Lagos Region, Chile
    1685.3×
  5. 5Puerto AysénAysén, Chile
    1614.7×
  6. 6BritsNorth West, South Africa
    1594.5×
  7. 7Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1594.5×
  8. 8KigaliKigali, Rwanda
    1574.3×
  9. 9TemucoAraucania, Chile
    1564.2×
  10. 10Dhakalow-cost sensorsDhaka Division, Bangladesh
    1564.2×
  11. 11Puerto MonttLos Lagos Region, Chile
    1554.1×
  12. 12Kampalalow-cost sensorsCentral Region, Uganda
    1544.0×
  13. 13ThembisaGauteng, South Africa
    1523.8×
  14. 14La UniónLos Ríos Region, Chile
    1503.7×
  15. 15Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1463.6×
  16. 16CoronelBiobio, Chile
    1393.4×
  17. 17ValdiviaLos Ríos Region, Chile
    1393.4×
  18. 18JakartaJakarta, Indonesia
    1363.3×
  19. 19HualquiBiobio, Chile
    1283.1×
  20. 20Addis AbabaAddis Ababa, Ethiopia
    1263.0×
  21. 21CuranilahueBiobio, Chile
    1192.9×
  22. 22KolkataWest Bengal, India
    1182.8×
  23. 23NacimientoBiobio, Chile
    1172.8×
  24. 24Islamabadlow-cost sensorsIslamabad, Pakistan
    1162.8×
  25. 25DushanbeDushanbe, Tajikistan
    1152.8×
  26. 26QuillotaValparaiso, Chile
    1152.7×
  27. 27SantiagoSantiago Metropolitan, Chile
    1132.7×
  28. 28Los ÁngelesBiobio, Chile
    1102.6×
  29. 29Puente AltoSantiago Metropolitan, Chile
    1092.6×
  30. 30HanoiHanoi, Vietnam
    1082.5×
  31. 31TalcahuanoBiobio, Chile
    1072.5×
  32. 32TalaganteSantiago Metropolitan, Chile
    1052.5×
  33. 33Lahorelow-cost sensorsPunjab, Pakistan
    1042.5×
  34. 34HyderabadTelangana, India
    1022.4×
  35. 35San CarlosÑuble, Chile
    992.3×
  36. 36ToméBiobio, Chile
    972.2×
  37. 37AlexandriaAlexandria, Egypt
    972.2×
  38. 38VanderbijlparkGauteng, South Africa
    962.2×
  39. 39RancaguaO'Higgins Region, Chile
    942.2×
  40. 40MiddelburgMpumalanga, South Africa
    942.1×
  41. 41NairobiNairobi County, Kenya
    932.1×
  42. 42ChennaiTamil Nadu, India
    922.1×
  43. 43MexicaliBaja California, Mexico
    922.1×
  44. 44RengoO'Higgins Region, Chile
    922.1×
  45. 45CholulaPuebla, Mexico
    912.1×
  46. 46TlaquepaqueJalisco, Mexico
    912.0×
  47. 47ChiguayanteBiobio, Chile
    892.0×
  48. 48San Francisco TlalcilalcalpanMéxico, Mexico
    892.0×
  49. 49Santa Cruz de TenerifeCanary Islands, Spain
    881.9×
  50. 49ChillánÑuble, Chile
    881.9×
  51. 49Santa Anita - Los FicusLima region, Peru
    881.9×
  52. 52DelhiDelhi, India
    881.9×
  53. 53AltamontOregon, United States
    871.9×
  54. 54Viña del MarValparaiso, Chile
    861.9×
  55. 55BamakoBamako, Mali
    861.9×
  56. 56MaspalomasCanary Islands, Spain
    851.8×
  57. 57Ciudad Benito JuárezNuevo León, Mexico
    851.8×
  58. 58TolucaMéxico, Mexico
    841.8×
  59. 58ConcepciónBiobio, Chile
    841.8×
  60. 60LinaresMaule Region, Chile
    841.8×
  61. 61CauquenesMaule Region, Chile
    841.8×
  62. 62BakuBaki, Azerbaijan
    831.8×
  63. 63Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    831.7×
  64. 64QuinteroValparaiso, Chile
    821.7×
  65. 65EvatonGauteng, South Africa
    821.7×
  66. 66XonacatlánMéxico, Mexico
    811.7×
  67. 67PristinaPristina, Kosovo
    811.7×
  68. 67StilfonteinNorth West, South Africa
    811.7×
  69. 69Ban Samae DamBangkok, Thailand
    801.7×
  70. 70Santa CatarinaNuevo León, Mexico
    801.6×
  71. 71La SerenaCoquimbo Region, Chile
    791.6×
  72. 72Sing BuriSing Buri, Thailand
    791.6×
  73. 73SarajevoFederation of B&H, Bosnia and Herzegovina
    791.6×
  74. 73CopiapóAtacama, Chile
    791.6×
  75. 75ArrecifeCanary Islands, Spain
    781.6×
  76. 76CuricóMaule Region, Chile
    781.6×
  77. 77San Salvador TizatlalliMéxico, Mexico
    771.6×
  78. 78GuangzhouGuangdong, China
    771.5×
  79. 79Karachilow-cost sensorsSindh, Pakistan
    771.5×
  80. 79MukdahanMukdahan, Thailand
    771.5×
  81. 79Bang NaBangkok, Thailand
    771.5×
  82. 79CelayaGuanajuato, Mexico
    771.5×
  83. 83AntofagastaAntofagasta, Chile
    761.5×
  84. 84Saphan SungBangkok, Thailand
    761.5×
  85. 85LitvínovÚstí nad Labem Region, Czechia
    761.5×
  86. 85San Pedro de la PazBiobio, Chile
    761.5×
  87. 87LampangLampang, Thailand
    751.5×
  88. 87Ulu BedokSingapore
    751.5×
  89. 89AronaCanary Islands, Spain
    751.5×
  90. 90San Andrés TuxtlaVeracruz, Mexico
    741.4×
  91. 90MonterreyNuevo León, Mexico
    741.4×
  92. 92Nakhon RatchasimaNakhon Ratchasima, Thailand
    741.4×
  93. 93Granadilla de AbonaCanary Islands, Spain
    741.4×
  94. 94AntananarivoAnalamanga, Madagascar
    741.4×
  95. 95Ang Mo Kio New TownSingapore
    741.4×
  96. 96N'DjamenaN’Djaména, Chad
    731.4×
  97. 96SaltilloCoahuila, Mexico
    731.4×
  98. 98TocopillaAntofagasta, Chile
    731.4×
  99. 99Chiang MaiChiang Mai, Thailand
    731.4×
  100. 100Udon ThaniUdon Thani, Thailand
    731.4×
  101. 101Nong KhaemBangkok, Thailand
    721.4×
  102. 102ConcónValparaiso, Chile
    721.4×
  103. 102BendOregon, United States
    721.4×
  104. 104FairbanksAlaska, United States
    721.4×
  105. 104Jardines de la SillaNuevo León, Mexico
    721.4×
  106. 106Naucalpan de JuárezMéxico, Mexico
    721.3×
  107. 107San Luis de la PazGuanajuato, Mexico
    711.3×
  108. 108TalcaMaule Region, Chile
    711.3×
  109. 108West MemphisArkansas, United States
    711.3×
  110. 110Jurong WestSingapore
    711.3×
  111. 111PhetchabunPhetchabun, Thailand
    711.3×
  112. 111Cadereyta JiménezNuevo León, Mexico
    711.3×
  113. 113Victoria de DurangoDurango, Mexico
    711.3×
  114. 114PhraePhrae, Thailand
    701.3×
  115. 114Khlong Sam WaBangkok, Thailand
    701.3×
  116. 116Tha BoNong Khai, Thailand
    701.3×
  117. 116AlessandriaPiedmont, Italy
    701.3×
  118. 116LotaBiobio, Chile
    701.3×
  119. 119SukhothaiSukhothai, Thailand
    701.3×
  120. 119Las Palmas de Gran CanariaCanary Islands, Spain
    701.3×
  121. 121Bang Bo DistrictSamut Prakan, Thailand
    701.3×
  122. 122ŁukówLublin, Poland
    691.3×
  123. 123KanchanaburiKanchanaburi, Thailand
    691.3×
  124. 123UttaraditUttaradit, Thailand
    691.3×
  125. 123CalamaAntofagasta, Chile
    691.3×
  126. 126SaraburiSaraburi, Thailand
    691.3×
  127. 127KrakówLesser Poland, Poland
    691.2×
  128. 128CandelariaCanary Islands, Spain
    691.2×
  129. 129Ciudad NezahualcoyotlMéxico, Mexico
    691.2×
  130. 130DębicaSubcarpathia, Poland
    681.2×
  131. 131BangkokBangkok, Thailand
    681.2×
  132. 131La Línea de la ConcepciónAndalusia, Spain
    681.2×
  133. 131AnconaThe Marches, Italy
    681.2×
  134. 134NanNan, Thailand
    671.2×
  135. 134SliemaTas-Sliema, Malta
    671.2×
  136. 134BolzanoTrentino-Alto Adige, Italy
    671.2×
  137. 134Tepeji del Río de OcampoHidalgo, Mexico
    671.2×
  138. 134Santiago de QuerétaroQuerétaro, Mexico
    671.2×
  139. 139RatchaburiRatchaburi, Thailand
    671.2×
  140. 139Phra PradaengSamut Prakan, Thailand
    671.2×
  141. 139Sai MaiBangkok, Thailand
    671.2×
  142. 142DěčínÚstí nad Labem Region, Czechia
    671.2×
  143. 143Ban Khlong PrawetBangkok, Thailand
    671.2×
  144. 143ElizabethNew Jersey, United States
    671.2×
  145. 143Khan Na YaoBangkok, Thailand
    671.2×
  146. 146PhichitPhichit, Thailand
    661.2×
  147. 147Queenstown Estatelow-cost sensorsSingapore
    661.1×
  148. 147KaliszGreater Poland, Poland
    661.1×
  149. 149Samut SakhonSamut Sakhon, Thailand
    661.1×
  150. 149Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    661.1×
  151. 149LimaLima Province, Peru
    661.1×
  152. 152Nong ChokBangkok, Thailand
    661.1×
  153. 152San IsidroCanary Islands, Spain
    661.1×
  154. 152São PauloSão Paulo, Brazil
    661.1×
  155. 155NagoOkinawa, Japan
    661.1×
  156. 156Lagoslow-cost sensorsLagos, Nigeria
    651.1×
  157. 156Alto HospicioTarapacá, Chile
    651.1×
  158. 158La OrotavaCanary Islands, Spain
    651.1×
  159. 159SmederevoCentral Serbia, Serbia
    651.1×
  160. 159GadsdenAlabama, United States
    651.1×
  161. 161PrešovPrešov Region, Slovakia
    651.1×
  162. 161Mae SaiChiang Rai, Thailand
    651.1×
  163. 161TakasakiGunma, Japan
    651.1×
  164. 161KasaokaOkayama, Japan
    651.1×
  165. 161MóstolesMadrid, Spain
    651.1×
  166. 161YatomiAichi, Japan
    651.1×
  167. 167Mexico CityMexico City, Mexico
    641.1×
  168. 167Villa Poeta José Gálvez BarrenecheaLima region, Peru
    641.1×
  169. 167L'Ancienne-LoretteQuebec, Canada
    641.1×
  170. 167Lak SiBangkok, Thailand
    641.1×
  171. 171Abujalow-cost sensorsFCT, Nigeria
    641.1×
  172. 171MostÚstí nad Labem Region, Czechia
    641.1×
  173. 171VeracruzVeracruz, Mexico
    641.1×
  174. 171CalexicoCalifornia, United States
    641.1×
  175. 175MiyakonojōMiyazaki, Japan
    641.1×
  176. 175Puerto del RosarioCanary Islands, Spain
    641.1×
  177. 175BensalemPennsylvania, United States
    641.1×
  178. 178Nakhon SawanNakhon Sawan, Thailand
    641.1×
  179. 178BaytownTexas, United States
    641.1×
  180. 178Eagle PassTexas, United States
    641.1×
  181. 181AlgecirasAndalusia, Spain
    631.1×
  182. 181TrentoTrentino-Alto Adige, Italy
    631.1×
  183. 181LaredoTexas, United States
    631.1×
  184. 184GeorgeWestern Cape, South Africa
    631.0×
  185. 184LamphunLamphun, Thailand
    631.0×
  186. 184Ubon RatchathaniUbon Ratchathani, Thailand
    631.0×
  187. 184RadomskoŁódź Voivodeship, Poland
    631.0×
  188. 184Grants PassOregon, United States
    631.0×
  189. 184Lat KrabangBangkok, Thailand
    631.0×
  190. 190NiskoSubcarpathia, Poland
    631.0×
  191. 191TarnówLesser Poland, Poland
    631.0×
  192. 191San RoqueAndalusia, Spain
    631.0×
  193. 191Collado-VillalbaMadrid, Spain
    631.0×
  194. 191Bueng KumBangkok, Thailand
    631.0×
  195. 195Khon KaenKhon Kaen, Thailand
    631.0×
  196. 195Bang KapiBangkok, Thailand
    631.0×
  197. 195OkinawaOkinawa, Japan
    631.0×
  198. 198ColomboWestern Province, Sri Lanka
    621.0×
  199. 198Khlong LuangPathum Thani, Thailand
    621.0×
  200. 198ArucasCanary Islands, Spain
    621.0×

Top 200 of 2,029 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

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SmogRank, most polluted cities, PM2.5, August 12, 2023, smogrank.com/history/2023-08-12 (accessed 2 Oct 2026).

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