SmogRank / History / April 13, 2023

Most polluted cities on April 13, 2023

1,243 cities ranked by their average PM2.5 over the day; the worst was San Luis Potosí, Mexico, at 971.0 µg/m³. Each city's own local calendar day.

← San Luis Potosí 971.0 µg/m³ 900 µg/m³15 WHO 24-hour guideline
Every city ranked for April 13, 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. 1San Luis PotosíSan Luis Potosí, Mexico
    500+64.7×
  2. 2BeijingBeijing, China
    26112.4×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    2229.8×
  4. 4CoyhaiqueAysén, Chile
    2139.2×
  5. 5Kathmandulow-cost sensorsBagmati Province, Nepal
    2028.5×
  6. 6ShenyangLiaoning, China
    1897.3×
  7. 7DelhiDelhi, India
    1776.1×
  8. 8TlaquepaqueJalisco, Mexico
    1756.0×
  9. 9AshgabatAshgabat, Turkmenistan
    1705.5×
  10. 10Tha BoNong Khai, Thailand
    1685.3×
  11. 11KhartoumKhartoum, Sudan
    1675.2×
  12. 12Lahorelow-cost sensorsPunjab, Pakistan
    1624.7×
  13. 13San Mateo AtencoMéxico, Mexico
    1614.6×
  14. 14Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1594.5×
  15. 15YangonYangon, Myanmar
    1564.2×
  16. 16HyderabadTelangana, India
    1544.0×
  17. 17Bang Khun ThianBangkok, Thailand
    1393.4×
  18. 18Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1243.0×
  19. 19Islamabadlow-cost sensorsIslamabad, Pakistan
    1192.8×
  20. 20Nakhon PathomNakhon Pathom, Thailand
    1182.8×
  21. 21BamakoBamako, Mali
    1182.8×
  22. 22BangkokBangkok, Thailand
    1172.8×
  23. 23Nong KhaemBangkok, Thailand
    1162.8×
  24. 24MumbaiMaharashtra, India
    1152.7×
  25. 25Samut PrakanSamut Prakan, Thailand
    1122.7×
  26. 26BaghdadBaghdad, Iraq
    1102.6×
  27. 27Mueang NonthaburiNonthaburi, Thailand
    1082.6×
  28. 28Khlong LuangPathum Thani, Thailand
    1082.6×
  29. 29PristinaPristina, Kosovo
    1042.5×
  30. 30Bang Bo DistrictSamut Prakan, Thailand
    1032.4×
  31. 31Bang KapiBangkok, Thailand
    1022.4×
  32. 32Samut SakhonSamut Sakhon, Thailand
    1012.4×
  33. 32RabinalBaja Verapaz, Guatemala
    1012.4×
  34. 32Guatemala CityGuatemala, Guatemala
    1012.4×
  35. 35CelayaGuanajuato, Mexico
    1002.4×
  36. 36Phra PradaengSamut Prakan, Thailand
    992.3×
  37. 37La UniónLos Ríos Region, Chile
    992.3×
  38. 38NacimientoBiobio, Chile
    982.3×
  39. 39GuangzhouGuangdong, China
    962.2×
  40. 40MexicaliBaja California, Mexico
    962.2×
  41. 41Puerto VarasLos Lagos Region, Chile
    952.2×
  42. 41Puerto AysénAysén, Chile
    952.2×
  43. 43Puerto MonttLos Lagos Region, Chile
    952.2×
  44. 44ColomboWestern Province, Sri Lanka
    932.1×
  45. 44OsornoLos Lagos Region, Chile
    932.1×
  46. 46Fort SmithArkansas, United States
    932.1×
  47. 47HanoiHanoi, Vietnam
    922.1×
  48. 48Kampalalow-cost sensorsCentral Region, Uganda
    912.1×
  49. 49ManamaManama, Bahrain
    892.0×
  50. 50Ulu BedokSingapore
    851.8×
  51. 51XonacatlánMéxico, Mexico
    841.8×
  52. 52Ang Mo Kio New TownSingapore
    831.8×
  53. 52IngenioCanary Islands, Spain
    831.8×
  54. 52GuadalajaraJalisco, Mexico
    831.8×
  55. 55IndianapolisIndiana, United States
    831.8×
  56. 56BelmopanCayo District, Belize
    821.7×
  57. 57Santa Cruz de TenerifeCanary Islands, Spain
    811.7×
  58. 58BakuBaki, Azerbaijan
    811.7×
  59. 59San Francisco TlalcilalcalpanMéxico, Mexico
    811.7×
  60. 60Valley StationKentucky, United States
    811.7×
  61. 61Abujalow-cost sensorsFCT, Nigeria
    801.6×
  62. 62DushanbeDushanbe, Tajikistan
    801.6×
  63. 63Queenstown Estatelow-cost sensorsSingapore
    791.6×
  64. 64LinaresMaule Region, Chile
    791.6×
  65. 65AntananarivoAnalamanga, Madagascar
    781.6×
  66. 65TolucaMéxico, Mexico
    781.6×
  67. 67Los ÁngelesBiobio, Chile
    781.6×
  68. 68Naucalpan de JuárezMéxico, Mexico
    781.6×
  69. 69VisbyGotland, Sweden
    781.6×
  70. 69RancaguaO'Higgins Region, Chile
    781.6×
  71. 71Ciudad NezahualcoyotlMéxico, Mexico
    781.6×
  72. 72BohumínMoravian-Silesian Region, Czechia
    771.6×
  73. 73San IsidroCanary Islands, Spain
    771.5×
  74. 74Las Palmas de Gran CanariaCanary Islands, Spain
    771.5×
  75. 74ValdiviaLos Ríos Region, Chile
    771.5×
  76. 76GreenvilleSouth Carolina, United States
    771.5×
  77. 77ZapopanJalisco, Mexico
    761.5×
  78. 77LawrencevilleGeorgia, United States
    761.5×
  79. 79AlessandriaPiedmont, Italy
    761.5×
  80. 79TemucoAraucania, Chile
    761.5×
  81. 81NišCentral Serbia, Serbia
    761.5×
  82. 82AntofagastaAntofagasta, Chile
    751.5×
  83. 82Ciudad Benito JuárezNuevo León, Mexico
    751.5×
  84. 82ColumbusIndiana, United States
    751.5×
  85. 85MaspalomasCanary Islands, Spain
    741.4×
  86. 86Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    741.4×
  87. 86Tepeji del Río de OcampoHidalgo, Mexico
    741.4×
  88. 88DunaújvárosFejér, Hungary
    741.4×
  89. 88SalamancaGuanajuato, Mexico
    741.4×
  90. 90ConakryConakry, Guinea
    731.4×
  91. 90LotaBiobio, Chile
    731.4×
  92. 92San CarlosÑuble, Chile
    721.4×
  93. 93HualpénBiobio, Chile
    721.4×
  94. 94Puente AltoSantiago Metropolitan, Chile
    721.4×
  95. 95PrešovPrešov Region, Slovakia
    711.3×
  96. 96Addis AbabaAddis Ababa, Ethiopia
    711.3×
  97. 96CoronelBiobio, Chile
    711.3×
  98. 98RengoO'Higgins Region, Chile
    711.3×
  99. 98ChillánÑuble, Chile
    711.3×
  100. 100CuranilahueBiobio, Chile
    711.3×
  101. 101JeffersonvilleIndiana, United States
    711.3×
  102. 102AricaArica y Parinacota Region, Chile
    701.3×
  103. 103JeddahMecca Region, Saudi Arabia
    701.3×
  104. 104TalcahuanoBiobio, Chile
    701.3×
  105. 104Greater SudburyOntario, Canada
    701.3×
  106. 106León de los AldamaGuanajuato, Mexico
    691.3×
  107. 107Santa Cruz de la PalmaCanary Islands, Spain
    691.2×
  108. 108Accralow-cost sensorsGreater Accra, Ghana
    691.2×
  109. 108SantiagoSantiago Metropolitan, Chile
    691.2×
  110. 110HualquiBiobio, Chile
    691.2×
  111. 111GuanajuatoGuanajuato, Mexico
    681.2×
  112. 112La OrotavaCanary Islands, Spain
    681.2×
  113. 112CandelariaCanary Islands, Spain
    681.2×
  114. 112AgüimesCanary Islands, Spain
    681.2×
  115. 115QuillotaValparaiso, Chile
    681.2×
  116. 116CuricóMaule Region, Chile
    681.2×
  117. 116Ciudad ApodacaNuevo León, Mexico
    681.2×
  118. 118CuernavacaMorelos, Mexico
    671.2×
  119. 119TalcaMaule Region, Chile
    671.2×
  120. 119CopiapóAtacama, Chile
    671.2×
  121. 119Santa CatarinaNuevo León, Mexico
    671.2×
  122. 122AthensAttica, Greece
    661.2×
  123. 122HavířovMoravian-Silesian Region, Czechia
    661.2×
  124. 124KošiceKošice Region, Slovakia
    661.1×
  125. 124Pachuca de SotoHidalgo, Mexico
    661.1×
  126. 124CauquenesMaule Region, Chile
    661.1×
  127. 124IrapuatoGuanajuato, Mexico
    661.1×
  128. 124LouisvilleKentucky, United States
    661.1×
  129. 129RedfordMichigan, United States
    661.1×
  130. 130BogotáBogota D.C., Colombia
    661.1×
  131. 130QuinteroValparaiso, Chile
    661.1×
  132. 132HumennéPrešov Region, Slovakia
    661.1×
  133. 132Granadilla de AbonaCanary Islands, Spain
    661.1×
  134. 132Viña del MarValparaiso, Chile
    661.1×
  135. 132NorwoodOhio, United States
    661.1×
  136. 132East RidgeTennessee, United States
    661.1×
  137. 137ConcónValparaiso, Chile
    651.1×
  138. 137Santiago de QuerétaroQuerétaro, Mexico
    651.1×
  139. 137ChattanoogaTennessee, United States
    651.1×
  140. 140RigaRiga, Latvia
    651.1×
  141. 140ŽilinaŽilina Region, Slovakia
    651.1×
  142. 140TalaganteSantiago Metropolitan, Chile
    651.1×
  143. 140SpringfieldMassachusetts, United States
    651.1×
  144. 144AronaCanary Islands, Spain
    651.1×
  145. 144ChiguayanteBiobio, Chile
    651.1×
  146. 144CalamaAntofagasta, Chile
    651.1×
  147. 144Arroyo GrandeCalifornia, United States
    651.1×
  148. 144BarrieOntario, Canada
    651.1×
  149. 144PeterboroughOntario, Canada
    651.1×
  150. 150AcharnésAttica, Greece
    651.1×
  151. 150TrenčínTrenčín Region, Slovakia
    651.1×
  152. 150GainesvilleGeorgia, United States
    651.1×
  153. 150BrawleyCalifornia, United States
    651.1×
  154. 154VentspilsVentspils, Latvia
    641.1×
  155. 155ArucasCanary Islands, Spain
    641.1×
  156. 155Český TěšínMoravian-Silesian Region, Czechia
    641.1×
  157. 155San Andrés TuxtlaVeracruz, Mexico
    641.1×
  158. 155TocopillaAntofagasta, Chile
    641.1×
  159. 155Terre HauteIndiana, United States
    641.1×
  160. 160RockfordIllinois, United States
    641.1×
  161. 160DearbornMichigan, United States
    641.1×
  162. 162ConcepciónBiobio, Chile
    641.1×
  163. 162New HavenConnecticut, United States
    641.1×
  164. 164La SerenaCoquimbo Region, Chile
    641.1×
  165. 164DetroitMichigan, United States
    641.1×
  166. 166GarcíaNuevo León, Mexico
    631.1×
  167. 166San Pedro de la PazBiobio, Chile
    631.1×
  168. 168IaşiIași County, Romania
    631.0×
  169. 168JesiThe Marches, Italy
    631.0×
  170. 168PaducahKentucky, United States
    631.0×
  171. 171Almatylow-cost sensorsAlmaty, Kazakhstan
    631.0×
  172. 172NashvilleTennessee, United States
    631.0×
  173. 172ElizabethNew Jersey, United States
    631.0×
  174. 174AlgiersAlgiers, Algeria
    631.0×
  175. 174DaytonOhio, United States
    631.0×
  176. 176JakartaJakarta, Indonesia
    631.0×
  177. 176AguascalientesAguascalientes, Mexico
    631.0×
  178. 176CharlestonWest Virginia, United States
    631.0×
  179. 176South MilwaukeeWisconsin, United States
    631.0×
  180. 180OlomoucOlomouc Region, Czechia
    621.0×
  181. 180CoquimboCoquimbo Region, Chile
    621.0×
  182. 182Mexico CityMexico City, Mexico
    621.0×
  183. 182SpringfieldOhio, United States
    621.0×
  184. 182KitchenerOntario, Canada
    621.0×
  185. 182Sault Ste. MarieOntario, Canada
    621.0×
  186. 182St. ThomasOntario, Canada
    621.0×
  187. 187Ciudad JuárezChihuahua, Mexico
    621.0×
  188. 187BridgeportConnecticut, United States
    621.0×
  189. 189CincinnatiOhio, United States
    621.0×
  190. 189ZionIllinois, United States
    621.0×
  191. 191BucharestBucharest, Romania
    621.0×
  192. 191AlbanyNew York, United States
    621.0×
  193. 191CantonOhio, United States
    621.0×
  194. 191BellevilleOntario, Canada
    621.0×
  195. 195ModugnoApulia, Italy
    611.0×
  196. 195AbasoloGuanajuato, Mexico
    611.0×
  197. 195KnoxvilleTennessee, United States
    611.0×
  198. 198PatersonNew Jersey, United States
    611.0×
  199. 199OstravaMoravian-Silesian Region, Czechia
    611.0×
  200. 199ClintonIowa, United States
    611.0×

Top 200 of 1,243 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 13, 2023, smogrank.com/history/2023-04-13 (accessed 2 Oct 2026).

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