SmogRank / History / April 28, 2023

Most polluted cities on April 28, 2023

1,246 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 465.0 µg/m³. Each city's own local calendar day.

← Peshawar 465.0 µg/m³ 400 µg/m³15 WHO 24-hour guideline
Every city ranked for April 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
    500+31.0×
  2. 2Kathmandulow-cost sensorsBagmati Province, Nepal
    2179.4×
  3. 3BelmopanCayo District, Belize
    1766.1×
  4. 4BamakoBamako, Mali
    1735.8×
  5. 5DelhiDelhi, India
    1554.1×
  6. 6RancaguaO'Higgins Region, Chile
    1554.1×
  7. 7Puente AltoSantiago Metropolitan, Chile
    1503.7×
  8. 8Lahorelow-cost sensorsPunjab, Pakistan
    1493.7×
  9. 9CoyhaiqueAysén, Chile
    1473.6×
  10. 10HyderabadTelangana, India
    1453.6×
  11. 11Dhakalow-cost sensorsDhaka Division, Bangladesh
    1393.4×
  12. 12RengoO'Higgins Region, Chile
    1393.4×
  13. 13SantiagoSantiago Metropolitan, Chile
    1343.3×
  14. 14CelayaGuanajuato, Mexico
    1253.0×
  15. 15CholulaPuebla, Mexico
    1202.9×
  16. 16LinaresMaule Region, Chile
    1162.8×
  17. 17Tha BoNong Khai, Thailand
    1152.7×
  18. 17MexicaliBaja California, Mexico
    1152.7×
  19. 19ShanghaiShanghai, China
    1132.7×
  20. 19BeijingBeijing, China
    1132.7×
  21. 21RabinalBaja Verapaz, Guatemala
    1102.6×
  22. 21Guatemala CityGuatemala, Guatemala
    1102.6×
  23. 23BaghdadBaghdad, Iraq
    1102.6×
  24. 23Hacienda Santa FeJalisco, Mexico
    1102.6×
  25. 25Kampalalow-cost sensorsCentral Region, Uganda
    1092.6×
  26. 26ZapopanJalisco, Mexico
    1092.6×
  27. 27ChillánÑuble, Chile
    1082.6×
  28. 28Túxpam de Rodríguez CanoVeracruz, Mexico
    1072.5×
  29. 29CuricóMaule Region, Chile
    1062.5×
  30. 30San CarlosÑuble, Chile
    1052.5×
  31. 31Puerto AysénAysén, Chile
    1052.5×
  32. 32TalaganteSantiago Metropolitan, Chile
    1042.5×
  33. 33TolucaMéxico, Mexico
    1022.4×
  34. 34San Mateo AtencoMéxico, Mexico
    1012.4×
  35. 35KigaliKigali, Rwanda
    992.3×
  36. 36YangonYangon, Myanmar
    972.2×
  37. 37PristinaPristina, Kosovo
    942.2×
  38. 38GuangzhouGuangdong, China
    942.1×
  39. 39Khlong LuangPathum Thani, Thailand
    932.1×
  40. 40Ciudad Benito JuárezNuevo León, Mexico
    932.1×
  41. 41HanoiHanoi, Vietnam
    912.1×
  42. 42Nong KhaemBangkok, Thailand
    912.0×
  43. 43Addis AbabaAddis Ababa, Ethiopia
    912.0×
  44. 43KhartoumKhartoum, Sudan
    912.0×
  45. 45XonacatlánMéxico, Mexico
    912.0×
  46. 46Klagenfurt am WörtherseeCarinthia, Austria
    892.0×
  47. 47TalcaMaule Region, Chile
    881.9×
  48. 48QuillotaValparaiso, Chile
    881.9×
  49. 49San Francisco TlalcilalcalpanMéxico, Mexico
    881.9×
  50. 50GuadalajaraJalisco, Mexico
    871.9×
  51. 51BohumínMoravian-Silesian Region, Czechia
    871.9×
  52. 52Silao de la VictoriaGuanajuato, Mexico
    841.8×
  53. 53Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    831.7×
  54. 53San Juan del RíoQuerétaro, Mexico
    831.7×
  55. 53Ciudad NezahualcoyotlMéxico, Mexico
    831.7×
  56. 56KadaňÚstí nad Labem Region, Czechia
    831.7×
  57. 57Mexico CityMexico City, Mexico
    821.7×
  58. 58Almatylow-cost sensorsAlmaty, Kazakhstan
    821.7×
  59. 59ColomboWestern Province, Sri Lanka
    811.7×
  60. 59Mueang NonthaburiNonthaburi, Thailand
    811.7×
  61. 59MostÚstí nad Labem Region, Czechia
    811.7×
  62. 62BangkokBangkok, Thailand
    811.7×
  63. 63TlaxcalaTlaxcala, Mexico
    811.7×
  64. 64SalamancaGuanajuato, Mexico
    801.7×
  65. 65Los AngelesCalifornia, United States
    801.6×
  66. 66CuranilahueBiobio, Chile
    801.6×
  67. 67Lagoslow-cost sensorsLagos, Nigeria
    791.6×
  68. 68JakartaJakarta, Indonesia
    791.6×
  69. 69AlgiersAlgiers, Algeria
    791.6×
  70. 70Nakhon PathomNakhon Pathom, Thailand
    791.6×
  71. 71IrapuatoGuanajuato, Mexico
    791.6×
  72. 72NacimientoBiobio, Chile
    781.6×
  73. 73Bang Bo DistrictSamut Prakan, Thailand
    781.6×
  74. 73PueblaPuebla, Mexico
    781.6×
  75. 75AntofagastaAntofagasta, Chile
    781.6×
  76. 76ShenyangLiaoning, China
    781.6×
  77. 77Şabāḩ as SālimMubārak al Kabīr, Kuwait
    771.6×
  78. 78DěčínÚstí nad Labem Region, Czechia
    771.5×
  79. 78ValdiviaLos Ríos Region, Chile
    771.5×
  80. 80Samut PrakanSamut Prakan, Thailand
    771.5×
  81. 80CuernavacaMorelos, Mexico
    771.5×
  82. 80TemucoAraucania, Chile
    771.5×
  83. 83Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    761.5×
  84. 84San Miguel de AllendeGuanajuato, Mexico
    761.5×
  85. 85Samut SakhonSamut Sakhon, Thailand
    761.5×
  86. 86LitvínovÚstí nad Labem Region, Czechia
    751.5×
  87. 86Viña del MarValparaiso, Chile
    751.5×
  88. 88Ciudad ApodacaNuevo León, Mexico
    751.5×
  89. 89NišCentral Serbia, Serbia
    751.5×
  90. 89QuinteroValparaiso, Chile
    751.5×
  91. 89MonterreyNuevo León, Mexico
    751.5×
  92. 92Pachuca de SotoHidalgo, Mexico
    751.5×
  93. 92Naucalpan de JuárezMéxico, Mexico
    751.5×
  94. 94San JoséSan José, Costa Rica
    741.4×
  95. 95Los ÁngelesBiobio, Chile
    741.4×
  96. 95Santiago de QuerétaroQuerétaro, Mexico
    741.4×
  97. 97HualpénBiobio, Chile
    741.4×
  98. 97ConcónValparaiso, Chile
    741.4×
  99. 99BailénAndalusia, Spain
    731.4×
  100. 99CopiapóAtacama, Chile
    731.4×
  101. 101SevillaAndalusia, Spain
    731.4×
  102. 101GlendoraCalifornia, United States
    731.4×
  103. 103TijuanaBaja California, Mexico
    731.4×
  104. 104AshgabatAshgabat, Turkmenistan
    721.4×
  105. 105CoronelBiobio, Chile
    721.4×
  106. 106Islamabadlow-cost sensorsIslamabad, Pakistan
    721.4×
  107. 107BurbankCalifornia, United States
    721.3×
  108. 108Ústí nad LabemÚstí nad Labem Region, Czechia
    711.3×
  109. 109DushanbeDushanbe, Tajikistan
    711.3×
  110. 109HammondIndiana, United States
    711.3×
  111. 111MühlhausenThuringia, Germany
    711.3×
  112. 112LotaBiobio, Chile
    711.3×
  113. 113Phra PradaengSamut Prakan, Thailand
    701.3×
  114. 114San Andrés TuxtlaVeracruz, Mexico
    701.3×
  115. 114GarcíaNuevo León, Mexico
    701.3×
  116. 116CauquenesMaule Region, Chile
    701.3×
  117. 117Lomitalow-cost sensorsCalifornia, United States
    701.3×
  118. 118Puerto VarasLos Lagos Region, Chile
    701.3×
  119. 118Ciudad JuárezChihuahua, Mexico
    701.3×
  120. 120ParadiseCalifornia, United States
    691.3×
  121. 121ManamaManama, Bahrain
    691.3×
  122. 121Hradec KrálovéHradec Králové Region, Czechia
    691.3×
  123. 121Český TěšínMoravian-Silesian Region, Czechia
    691.3×
  124. 121OsornoLos Lagos Region, Chile
    691.3×
  125. 125AppletonWisconsin, United States
    691.2×
  126. 126Karachilow-cost sensorsSindh, Pakistan
    691.2×
  127. 127PrešovPrešov Region, Slovakia
    691.2×
  128. 127La Línea de la ConcepciónAndalusia, Spain
    691.2×
  129. 127OlomoucOlomouc Region, Czechia
    691.2×
  130. 127BerounCentral Bohemia, Czechia
    691.2×
  131. 127VisaliaCalifornia, United States
    691.2×
  132. 132CoquimboCoquimbo Region, Chile
    681.2×
  133. 133ComptonCalifornia, United States
    681.2×
  134. 134KladnoCentral Bohemia, Czechia
    681.2×
  135. 134Carsonlow-cost sensorsCalifornia, United States
    681.2×
  136. 134Long BeachCalifornia, United States
    681.2×
  137. 137Jurupa ValleyCalifornia, United States
    681.2×
  138. 138La UniónLos Ríos Region, Chile
    681.2×
  139. 138CalexicoCalifornia, United States
    681.2×
  140. 140GrazStyria, Austria
    671.2×
  141. 140Puerto MonttLos Lagos Region, Chile
    671.2×
  142. 140BakersfieldCalifornia, United States
    671.2×
  143. 143Banja LukaSrpska, Bosnia and Herzegovina
    671.2×
  144. 144HumennéPrešov Region, Slovakia
    671.2×
  145. 144PilsenPlzeň Region, Czechia
    671.2×
  146. 146SalorTashkent Region, Uzbekistan
    671.2×
  147. 146TalcahuanoBiobio, Chile
    671.2×
  148. 146CalamaAntofagasta, Chile
    671.2×
  149. 149BelgradeCentral Serbia, Serbia
    661.2×
  150. 149GuanajuatoGuanajuato, Mexico
    661.2×
  151. 151HalberstadtSaxony-Anhalt, Germany
    661.2×
  152. 151Santa CatarinaNuevo León, Mexico
    661.2×
  153. 153KošiceKošice Region, Slovakia
    661.1×
  154. 153HualquiBiobio, Chile
    661.1×
  155. 155HuelvaAndalusia, Spain
    661.1×
  156. 156ConakryConakry, Guinea
    661.1×
  157. 157AbasoloGuanajuato, Mexico
    651.1×
  158. 158MolineIllinois, United States
    651.1×
  159. 159Green BayWisconsin, United States
    651.1×
  160. 160NordhausenThuringia, Germany
    651.1×
  161. 160Torrancelow-cost sensorsCalifornia, United States
    651.1×
  162. 162San DiegoCalifornia, United States
    651.1×
  163. 163MartinŽilina Region, Slovakia
    641.1×
  164. 163La SerenaCoquimbo Region, Chile
    641.1×
  165. 163AnaheimCalifornia, United States
    641.1×
  166. 163Hawthornelow-cost sensorsCalifornia, United States
    641.1×
  167. 163San Pedro de la PazBiobio, Chile
    641.1×
  168. 168Las CrucesNew Mexico, United States
    641.1×
  169. 169San RoqueAndalusia, Spain
    641.1×
  170. 169RužomberokŽilina Region, Slovakia
    641.1×
  171. 169CuencaCastille-La Mancha, Spain
    641.1×
  172. 169MadisonWisconsin, United States
    641.1×
  173. 173Laudio / LlodioBasque Country, Spain
    641.1×
  174. 174Sankt PöltenLower Austria, Austria
    641.1×
  175. 174TocopillaAntofagasta, Chile
    641.1×
  176. 174ChiguayanteBiobio, Chile
    641.1×
  177. 177AntananarivoAnalamanga, Madagascar
    631.1×
  178. 177AlgecirasAndalusia, Spain
    631.1×
  179. 177TrnavaTrnava Region, Slovakia
    631.1×
  180. 177EdinburgTexas, United States
    631.1×
  181. 177DavenportIowa, United States
    631.1×
  182. 182FresnoCalifornia, United States
    631.0×
  183. 183TraunUpper Austria, Austria
    631.0×
  184. 183Alcalá de HenaresMadrid, Spain
    631.0×
  185. 183Calumet CityIllinois, United States
    631.0×
  186. 183BanningCalifornia, United States
    631.0×
  187. 187Spišská Nová VesKošice Region, Slovakia
    631.0×
  188. 187MagdeburgSaxony-Anhalt, Germany
    631.0×
  189. 187ŽilinaŽilina Region, Slovakia
    631.0×
  190. 187WittenbergSaxony-Anhalt, Germany
    631.0×
  191. 191AmstettenLower Austria, Austria
    631.0×
  192. 191CosladaMadrid, Spain
    631.0×
  193. 191Collado-VillalbaMadrid, Spain
    631.0×
  194. 191HobbsNew Mexico, United States
    631.0×
  195. 195GyőrGyőr-Moson-Sopron, Hungary
    621.0×
  196. 195OstravaMoravian-Silesian Region, Czechia
    621.0×
  197. 195WaukeshaWisconsin, United States
    621.0×
  198. 198KöthenSaxony-Anhalt, Germany
    621.0×
  199. 198NapervilleIllinois, United States
    621.0×
  200. 200KasselHesse, Germany
    621.0×

Top 200 of 1,246 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, April 28, 2023, smogrank.com/history/2023-04-28 (accessed 2 Oct 2026).

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