SmogRank / History / September 28, 2023

Most polluted cities on September 28, 2023

1,824 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 102.0 µg/m³. Each city's own local calendar day.

← Peshawar 102.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for September 28, 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. 1Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1846.8×
  2. 2Karachilow-cost sensorsSindh, Pakistan
    1604.6×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    1594.5×
  4. 4JeddahMecca Region, Saudi Arabia
    1584.3×
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    1554.1×
  6. 6Fort McMurrayAlberta, Canada
    1543.9×
  7. 7DelhiDelhi, India
    1393.4×
  8. 8Kampalalow-cost sensorsCentral Region, Uganda
    1283.1×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    1263.0×
  10. 10Addis AbabaAddis Ababa, Ethiopia
    1192.8×
  11. 11JakartaJakarta, Indonesia
    1162.8×
  12. 12KolkataWest Bengal, India
    1142.7×
  13. 13Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1132.7×
  14. 14GuangzhouGuangdong, China
    1122.7×
  15. 15CoyhaiqueAysén, Chile
    1122.7×
  16. 16MumbaiMaharashtra, India
    1112.6×
  17. 17Puerto VarasLos Lagos Region, Chile
    1022.4×
  18. 18La UniónLos Ríos Region, Chile
    1002.4×
  19. 19HyderabadTelangana, India
    992.3×
  20. 20Puerto MonttLos Lagos Region, Chile
    992.3×
  21. 21DushanbeDushanbe, Tajikistan
    992.3×
  22. 22BakuBaki, Azerbaijan
    972.2×
  23. 23OsornoLos Lagos Region, Chile
    962.2×
  24. 24SalorTashkent Region, Uzbekistan
    942.1×
  25. 25TlaquepaqueJalisco, Mexico
    932.1×
  26. 26Fort St. JohnBritish Columbia, Canada
    892.0×
  27. 27CairoCairo, Egypt
    881.9×
  28. 28ManamaManama, Bahrain
    861.9×
  29. 28TemucoAraucania, Chile
    861.9×
  30. 28NacimientoBiobio, Chile
    861.9×
  31. 31CholulaPuebla, Mexico
    851.8×
  32. 32SantiagoSantiago Metropolitan, Chile
    841.8×
  33. 33NairobiNairobi County, Kenya
    841.8×
  34. 34San Salvador TizatlalliMéxico, Mexico
    841.8×
  35. 35Puerto AysénAysén, Chile
    831.8×
  36. 36Ulu BedokSingapore
    831.7×
  37. 37RancaguaO'Higgins Region, Chile
    821.7×
  38. 38KrakówLesser Poland, Poland
    811.7×
  39. 39TijuanaBaja California, Mexico
    811.7×
  40. 39St. John'sNewfoundland and Labrador, Canada
    811.7×
  41. 41TolucaMéxico, Mexico
    811.7×
  42. 41San Francisco TlalcilalcalpanMéxico, Mexico
    811.7×
  43. 43N'DjamenaN’Djaména, Chad
    801.7×
  44. 43Puente AltoSantiago Metropolitan, Chile
    801.7×
  45. 45BogotáBogota D.C., Colombia
    801.7×
  46. 46OlsztynWarmia-Masuria, Poland
    801.6×
  47. 47AnconaThe Marches, Italy
    791.6×
  48. 48BydgoszczKujawsko-Pomorskie, Poland
    781.6×
  49. 48NaplesCampania, Italy
    781.6×
  50. 50Ang Mo Kio New TownSingapore
    781.6×
  51. 50CalexicoCalifornia, United States
    781.6×
  52. 52TocopillaAntofagasta, Chile
    781.6×
  53. 52Ciudad General EscobedoNuevo León, Mexico
    781.6×
  54. 54HanoiHanoi, Vietnam
    771.5×
  55. 54SarajevoFederation of B&H, Bosnia and Herzegovina
    771.5×
  56. 54QuillotaValparaiso, Chile
    771.5×
  57. 57PristinaPristina, Kosovo
    771.5×
  58. 57FujinomiyaShizuoka, Japan
    771.5×
  59. 59TalaganteSantiago Metropolitan, Chile
    771.5×
  60. 60YamanashiYamanashi, Japan
    771.5×
  61. 61ConcónValparaiso, Chile
    761.5×
  62. 62DěčínÚstí nad Labem Region, Czechia
    761.5×
  63. 62XonacatlánMéxico, Mexico
    761.5×
  64. 64DębicaSubcarpathia, Poland
    761.5×
  65. 65RengoO'Higgins Region, Chile
    761.5×
  66. 66AiharaKanagawa, Japan
    761.5×
  67. 66QuinteroValparaiso, Chile
    761.5×
  68. 66FontanaCalifornia, United States
    761.5×
  69. 69FujiedaShizuoka, Japan
    751.5×
  70. 70AtamiShizuoka, Japan
    751.5×
  71. 71GdyniaPomerania, Poland
    751.5×
  72. 71CuranilahueBiobio, Chile
    751.5×
  73. 71AntofagastaAntofagasta, Chile
    751.5×
  74. 71Ciudad JuárezChihuahua, Mexico
    751.5×
  75. 75NiskoSubcarpathia, Poland
    741.4×
  76. 75Santa CatarinaNuevo León, Mexico
    741.4×
  77. 77ValdiviaLos Ríos Region, Chile
    741.4×
  78. 78KutnoŁódź Voivodeship, Poland
    741.4×
  79. 78GuadalajaraJalisco, Mexico
    741.4×
  80. 78Ciudad ApodacaNuevo León, Mexico
    741.4×
  81. 81KaliszGreater Poland, Poland
    741.4×
  82. 82EłkWarmia-Masuria, Poland
    731.4×
  83. 82KatowiceSilesia, Poland
    731.4×
  84. 82SusonoShizuoka, Japan
    731.4×
  85. 85Little RockArkansas, United States
    731.4×
  86. 85Mount PearlNewfoundland and Labrador, Canada
    731.4×
  87. 87PoznańGreater Poland, Poland
    731.4×
  88. 87PueblaPuebla, Mexico
    731.4×
  89. 87TalcahuanoBiobio, Chile
    731.4×
  90. 90PłockMazovia, Poland
    731.4×
  91. 90HualquiBiobio, Chile
    731.4×
  92. 90CoronelBiobio, Chile
    731.4×
  93. 93MinamirinkanKanagawa, Japan
    721.4×
  94. 94CoquimboCoquimbo Region, Chile
    721.4×
  95. 95CuricóMaule Region, Chile
    721.4×
  96. 95CopiapóAtacama, Chile
    721.4×
  97. 95ZapopanJalisco, Mexico
    721.4×
  98. 98Kathmandulow-cost sensorsBagmati Province, Nepal
    721.4×
  99. 99RacibórzSilesia, Poland
    721.3×
  100. 100ChigasakiKanagawa, Japan
    711.3×
  101. 100ToméBiobio, Chile
    711.3×
  102. 102Wan ChaiWan Chai, Hong Kong
    711.3×
  103. 102MinawaKanagawa, Japan
    711.3×
  104. 104TarnówLesser Poland, Poland
    711.3×
  105. 104KętrzynWarmia-Masuria, Poland
    711.3×
  106. 104La SerenaCoquimbo Region, Chile
    711.3×
  107. 107FukuroiShizuoka, Japan
    711.3×
  108. 107GrazStyria, Austria
    711.3×
  109. 107TrnavaTrnava Region, Slovakia
    711.3×
  110. 107Český TěšínMoravian-Silesian Region, Czechia
    711.3×
  111. 111NumazuShizuoka, Japan
    711.3×
  112. 111MostÚstí nad Labem Region, Czechia
    711.3×
  113. 113SofiaSofia-Capital, Bulgaria
    701.3×
  114. 113IyoEhime, Japan
    701.3×
  115. 113SzczecinWest Pomerania, Poland
    701.3×
  116. 113KrapkowiceOpole Voivodeship, Poland
    701.3×
  117. 117FujiShizuoka, Japan
    701.3×
  118. 117HuelvaAndalusia, Spain
    701.3×
  119. 117Falconara MarittimaThe Marches, Italy
    701.3×
  120. 120SanoTochigi, Japan
    701.3×
  121. 120KladnoCentral Bohemia, Czechia
    701.3×
  122. 120MóstolesMadrid, Spain
    701.3×
  123. 123BamakoBamako, Mali
    701.3×
  124. 124BerlinState of Berlin, Germany
    691.3×
  125. 124San CarlosÑuble, Chile
    691.3×
  126. 124MonterreyNuevo León, Mexico
    691.3×
  127. 127WeidenBavaria, Germany
    691.3×
  128. 127PřerovOlomouc Region, Czechia
    691.3×
  129. 127Jastrzębie ZdrójSilesia, Poland
    691.3×
  130. 127MontréalQuebec, Canada
    691.3×
  131. 131ŁaskŁódź Voivodeship, Poland
    691.3×
  132. 132YatomiAichi, Japan
    691.2×
  133. 133GrajewoPodlasie, Poland
    691.2×
  134. 133KakegawaShizuoka, Japan
    691.2×
  135. 133ZnojmoSouth Moravian, Czechia
    691.2×
  136. 133OstravaMoravian-Silesian Region, Czechia
    691.2×
  137. 133ChikuseiIbaraki, Japan
    691.2×
  138. 138MiskolcBorsod-Abaúj-Zemplén, Hungary
    691.2×
  139. 138IrumaSaitama, Japan
    691.2×
  140. 138Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    691.2×
  141. 141ŻyrardówMazovia, Poland
    681.2×
  142. 141AlessandriaPiedmont, Italy
    681.2×
  143. 141NiizaSaitama, Japan
    681.2×
  144. 144StarachowiceŚwiętokrzyskie, Poland
    681.2×
  145. 144AugustówPodlasie, Poland
    681.2×
  146. 144Queenstown Estatelow-cost sensorsSingapore
    681.2×
  147. 144Collado-VillalbaMadrid, Spain
    681.2×
  148. 144AricaArica y Parinacota Region, Chile
    681.2×
  149. 144Ciudad Benito JuárezNuevo León, Mexico
    681.2×
  150. 150NorrtäljeStockholm, Sweden
    681.2×
  151. 150SenicaTrnava Region, Slovakia
    681.2×
  152. 150RiversideCalifornia, United States
    681.2×
  153. 153TakasakiGunma, Japan
    681.2×
  154. 153NodaChiba, Japan
    681.2×
  155. 155MielecSubcarpathia, Poland
    681.2×
  156. 155AstanaAstana, Kazakhstan
    681.2×
  157. 155IwataShizuoka, Japan
    681.2×
  158. 155HiratsukaKanagawa, Japan
    681.2×
  159. 155HadanoKanagawa, Japan
    681.2×
  160. 155MitoIbaraki, Japan
    681.2×
  161. 161RigaRiga, Latvia
    671.2×
  162. 161HachiōjiTokyo, Japan
    671.2×
  163. 161SliemaTas-Sliema, Malta
    671.2×
  164. 161TeltowBrandenburg, Germany
    671.2×
  165. 161DallasTexas, United States
    671.2×
  166. 166AgeoSaitama, Japan
    671.2×
  167. 166Alcalá de HenaresMadrid, Spain
    671.2×
  168. 166DorvalQuebec, Canada
    671.2×
  169. 169KadaňÚstí nad Labem Region, Czechia
    671.2×
  170. 169Hradec KrálovéHradec Králové Region, Czechia
    671.2×
  171. 171BitolaBitola, North Macedonia
    671.2×
  172. 171MartinŽilina Region, Slovakia
    671.2×
  173. 171JōsōIbaraki, Japan
    671.2×
  174. 174RuseRuse, Bulgaria
    671.2×
  175. 174BelgradeCentral Serbia, Serbia
    671.2×
  176. 174CauquenesMaule Region, Chile
    671.2×
  177. 174GranbyQuebec, Canada
    671.2×
  178. 174Prince AlbertSaskatchewan, Canada
    671.2×
  179. 179KielceŚwiętokrzyskie, Poland
    661.2×
  180. 179KawaguchiSaitama, Japan
    661.2×
  181. 179Bernau bei BerlinBrandenburg, Germany
    661.2×
  182. 179TepliceÚstí nad Labem Region, Czechia
    661.2×
  183. 179BohumínMoravian-Silesian Region, Czechia
    661.2×
  184. 179KościanGreater Poland, Poland
    661.2×
  185. 179SaitamaSaitama, Japan
    661.2×
  186. 186AntananarivoAnalamanga, Madagascar
    661.2×
  187. 186KasukabeSaitama, Japan
    661.2×
  188. 186PisaTuscany, Italy
    661.2×
  189. 186TsuchiuraIbaraki, Japan
    661.2×
  190. 186KodairaTokyo, Japan
    661.2×
  191. 191Shimo-tsumaIbaraki, Japan
    661.1×
  192. 191BerounCentral Bohemia, Czechia
    661.1×
  193. 191Kędzierzyn-KoźleOpole Voivodeship, Poland
    661.1×
  194. 191Banja LukaSrpska, Bosnia and Herzegovina
    661.1×
  195. 191L'Ancienne-LoretteQuebec, Canada
    661.1×
  196. 196MachidaTokyo, Japan
    661.1×
  197. 196AsakaSaitama, Japan
    661.1×
  198. 196Jurupa ValleyCalifornia, United States
    661.1×
  199. 196BrossardQuebec, Canada
    661.1×
  200. 196CornwallOntario, Canada
    661.1×

Top 200 of 1,824 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, September 28, 2023, smogrank.com/history/2023-09-28 (accessed 2 Oct 2026).

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