SmogRank / History / May 14, 2023

Most polluted cities on May 14, 2023

1,294 cities ranked by their average PM2.5 over the day; the worst was Delhi, India, at 87.8 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 14, 2023. All episodes.

← Delhi 87.8 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for May 14, 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. 1DelhiDelhi, India
    1745.9×
  2. 2OsornoLos Lagos Region, Chile
    1725.7×
  3. 3Grande PrairieAlberta, Canada
    1614.7×
  4. 4CuricóMaule Region, Chile
    1614.6×
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    1564.2×
  6. 6Kathmandulow-cost sensorsBagmati Province, Nepal
    1554.1×
  7. 7CuranilahueBiobio, Chile
    1554.1×
  8. 8SantiagoSantiago Metropolitan, Chile
    1523.8×
  9. 9La UniónLos Ríos Region, Chile
    1523.8×
  10. 10LinaresMaule Region, Chile
    1523.8×
  11. 11NacimientoBiobio, Chile
    1513.7×
  12. 12TalaganteSantiago Metropolitan, Chile
    1513.7×
  13. 13CoronelBiobio, Chile
    1513.7×
  14. 14GuangzhouGuangdong, China
    1493.7×
  15. 14BeneventoCampania, Italy
    1493.7×
  16. 16HualquiBiobio, Chile
    1453.5×
  17. 17CoyhaiqueAysén, Chile
    1423.5×
  18. 18Dhakalow-cost sensorsDhaka Division, Bangladesh
    1333.2×
  19. 19Hacienda Santa FeJalisco, Mexico
    1323.2×
  20. 20Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1303.2×
  21. 21Puente AltoSantiago Metropolitan, Chile
    1293.1×
  22. 22BeijingBeijing, China
    1263.0×
  23. 23HyderabadTelangana, India
    1233.0×
  24. 24QuillotaValparaiso, Chile
    1212.9×
  25. 25Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1192.9×
  26. 26RancaguaO'Higgins Region, Chile
    1142.7×
  27. 27ChennaiTamil Nadu, India
    1112.6×
  28. 28Fort McMurrayAlberta, Canada
    1092.6×
  29. 29TemucoAraucania, Chile
    1072.5×
  30. 30Viña del MarValparaiso, Chile
    1052.5×
  31. 31QuinteroValparaiso, Chile
    1042.5×
  32. 32ValdiviaLos Ríos Region, Chile
    1022.4×
  33. 33KolkataWest Bengal, India
    982.3×
  34. 34Addis AbabaAddis Ababa, Ethiopia
    982.3×
  35. 35TalcaMaule Region, Chile
    972.3×
  36. 36Fort St. JohnBritish Columbia, Canada
    972.3×
  37. 37CoquimboCoquimbo Region, Chile
    972.2×
  38. 38ManamaManama, Bahrain
    972.2×
  39. 38HualpénBiobio, Chile
    972.2×
  40. 40CharleroiWallonia, Belgium
    962.2×
  41. 41Puerto AysénAysén, Chile
    962.2×
  42. 42La SerenaCoquimbo Region, Chile
    952.2×
  43. 43San CarlosÑuble, Chile
    942.1×
  44. 44ConcónValparaiso, Chile
    932.1×
  45. 45MonsWallonia, Belgium
    922.1×
  46. 46ChillánÑuble, Chile
    902.0×
  47. 46León de los AldamaGuanajuato, Mexico
    902.0×
  48. 48AndenneWallonia, Belgium
    892.0×
  49. 48CelayaGuanajuato, Mexico
    892.0×
  50. 50TalcahuanoBiobio, Chile
    892.0×
  51. 50Prince AlbertSaskatchewan, Canada
    892.0×
  52. 52TocopillaAntofagasta, Chile
    881.9×
  53. 53JakartaJakarta, Indonesia
    881.9×
  54. 54AntofagastaAntofagasta, Chile
    881.9×
  55. 55LotaBiobio, Chile
    871.9×
  56. 56Kampalalow-cost sensorsCentral Region, Uganda
    861.9×
  57. 56TournaiWallonia, Belgium
    861.9×
  58. 56Puerto VarasLos Lagos Region, Chile
    861.9×
  59. 59Puerto MonttLos Lagos Region, Chile
    861.9×
  60. 60AcharnésAttica, Greece
    841.8×
  61. 61SliemaTas-Sliema, Malta
    831.8×
  62. 62HanoiHanoi, Vietnam
    831.8×
  63. 62ToméBiobio, Chile
    831.8×
  64. 62ConcepciónBiobio, Chile
    831.8×
  65. 65LiègeWallonia, Belgium
    831.7×
  66. 66ChiguayanteBiobio, Chile
    821.7×
  67. 66SalamancaGuanajuato, Mexico
    821.7×
  68. 68MenenFlanders, Belgium
    821.7×
  69. 69CopiapóAtacama, Chile
    811.7×
  70. 70BaghdadBaghdad, Iraq
    811.7×
  71. 70GrimbergenFlanders, Belgium
    811.7×
  72. 72PristinaPristina, Kosovo
    811.7×
  73. 72WillebroekFlanders, Belgium
    811.7×
  74. 74CauquenesMaule Region, Chile
    801.6×
  75. 75KortrijkFlanders, Belgium
    801.6×
  76. 75AntwerpFlanders, Belgium
    801.6×
  77. 77IzegemFlanders, Belgium
    801.6×
  78. 78EvergemFlanders, Belgium
    791.6×
  79. 79WaregemFlanders, Belgium
    791.6×
  80. 80TijuanaBaja California, Mexico
    791.6×
  81. 81ReimsGrand Est, France
    781.6×
  82. 82KrefeldNorth Rhine-Westphalia, Germany
    781.6×
  83. 82Prince GeorgeBritish Columbia, Canada
    781.6×
  84. 84Saint-QuentinHauts-de-France, France
    771.5×
  85. 84Alto HospicioTarapacá, Chile
    771.5×
  86. 86RoeselareFlanders, Belgium
    771.5×
  87. 87Marche-en-FamenneWallonia, Belgium
    761.5×
  88. 88BrusselsBrussels Capital, Belgium
    761.5×
  89. 89KapellenFlanders, Belgium
    751.5×
  90. 89LisieuxNormandy, France
    751.5×
  91. 91Lagoslow-cost sensorsLagos, Nigeria
    751.5×
  92. 92LilleHauts-de-France, France
    751.5×
  93. 93JeddahMecca Region, Saudi Arabia
    741.4×
  94. 94Silao de la VictoriaGuanajuato, Mexico
    741.4×
  95. 95San Pedro de la PazBiobio, Chile
    741.4×
  96. 95La Crescenta-Montroselow-cost sensorsCalifornia, United States
    741.4×
  97. 97RoubaixHauts-de-France, France
    741.4×
  98. 98DouaiHauts-de-France, France
    731.4×
  99. 99GentFlanders, Belgium
    731.4×
  100. 100CreilHauts-de-France, France
    731.4×
  101. 101ÉtampesÎle-de-France, France
    731.4×
  102. 102BeverenFlanders, Belgium
    731.4×
  103. 103Mexico CityMexico City, Mexico
    721.4×
  104. 104ZwijndrechtFlanders, Belgium
    721.4×
  105. 104AmiensHauts-de-France, France
    721.4×
  106. 104Los ÁngelesBiobio, Chile
    721.4×
  107. 107Naucalpan de JuárezMéxico, Mexico
    721.4×
  108. 108AricaArica y Parinacota Region, Chile
    721.4×
  109. 109Flémalle-HauteWallonia, Belgium
    711.3×
  110. 109MelunÎle-de-France, France
    711.3×
  111. 109DreuxCentre-Val de Loire, France
    711.3×
  112. 112ÉpernayGrand Est, France
    711.3×
  113. 113ParadiseCalifornia, United States
    711.3×
  114. 114Islamabadlow-cost sensorsIslamabad, Pakistan
    711.3×
  115. 114BéthuneHauts-de-France, France
    711.3×
  116. 116LochristiFlanders, Belgium
    711.3×
  117. 117KoksijdeFlanders, Belgium
    701.3×
  118. 117ParisÎle-de-France, France
    701.3×
  119. 119GraysEngland, United Kingdom
    701.3×
  120. 119OlivetCentre-Val de Loire, France
    701.3×
  121. 121ChâteaurouxCentre-Val de Loire, France
    701.3×
  122. 122SalorTashkent Region, Uzbekistan
    701.3×
  123. 122Coconut CreekFlorida, United States
    701.3×
  124. 124Sainte-Geneviève-des-BoisÎle-de-France, France
    691.3×
  125. 124DieppeNormandy, France
    691.3×
  126. 126FontanaCalifornia, United States
    691.3×
  127. 127StabroekFlanders, Belgium
    691.3×
  128. 128MaldegemFlanders, Belgium
    691.2×
  129. 128CaenNormandy, France
    691.2×
  130. 130EupenWallonia, Belgium
    681.2×
  131. 130Le HavreNormandy, France
    681.2×
  132. 130Santa ClaritaCalifornia, United States
    681.2×
  133. 133AthensAttica, Greece
    681.2×
  134. 134Khlong LuangPathum Thani, Thailand
    681.2×
  135. 134East LakeFlorida, United States
    681.2×
  136. 136AstanaAstana, Kazakhstan
    671.2×
  137. 136MolFlanders, Belgium
    671.2×
  138. 136RouenNormandy, France
    671.2×
  139. 136BloisCentre-Val de Loire, France
    671.2×
  140. 140DushanbeDushanbe, Tajikistan
    671.2×
  141. 141RambouilletÎle-de-France, France
    671.2×
  142. 141RiversideCalifornia, United States
    671.2×
  143. 143ChartresCentre-Val de Loire, France
    671.2×
  144. 143CalamaAntofagasta, Chile
    671.2×
  145. 145DuisburgNorth Rhine-Westphalia, Germany
    661.2×
  146. 145Banja LukaSrpska, Bosnia and Herzegovina
    661.2×
  147. 145AachenNorth Rhine-Westphalia, Germany
    661.2×
  148. 148ValenceAuvergne-Rhône-Alpes, France
    661.2×
  149. 148AngersPays de la Loire, France
    661.2×
  150. 148TexarkanaTexas, United States
    661.2×
  151. 151GuanajuatoGuanajuato, Mexico
    661.1×
  152. 152RennesBrittany, France
    661.1×
  153. 152La Roche-sur-YonPays de la Loire, France
    661.1×
  154. 152FontainebleauÎle-de-France, France
    661.1×
  155. 155Karachilow-cost sensorsSindh, Pakistan
    661.1×
  156. 155SundsvallVästernorrland, Sweden
    661.1×
  157. 157AlençonNormandy, France
    661.1×
  158. 158BangkokBangkok, Thailand
    651.1×
  159. 158JülichNorth Rhine-Westphalia, Germany
    651.1×
  160. 160Bang Bo DistrictSamut Prakan, Thailand
    651.1×
  161. 160MostaIl-Mosta, Malta
    651.1×
  162. 162BexleyEngland, United Kingdom
    651.1×
  163. 162DomontÎle-de-France, France
    651.1×
  164. 162BeauvaisHauts-de-France, France
    651.1×
  165. 162Jurupa ValleyCalifornia, United States
    651.1×
  166. 162Simi ValleyCalifornia, United States
    651.1×
  167. 167Nakhon PathomNakhon Pathom, Thailand
    651.1×
  168. 167SarcellesÎle-de-France, France
    651.1×
  169. 167ÉvreuxNormandy, France
    651.1×
  170. 167Los AngelesCalifornia, United States
    651.1×
  171. 171Nong KhaemBangkok, Thailand
    651.1×
  172. 171CoulommiersÎle-de-France, France
    651.1×
  173. 171GlendoraCalifornia, United States
    651.1×
  174. 174DenainHauts-de-France, France
    641.1×
  175. 174SaskatoonSaskatchewan, Canada
    641.1×
  176. 176AbasoloGuanajuato, Mexico
    641.1×
  177. 177EssenNorth Rhine-Westphalia, Germany
    641.1×
  178. 177HavířovMoravian-Silesian Region, Czechia
    641.1×
  179. 179MönchengladbachNorth Rhine-Westphalia, Germany
    641.1×
  180. 179DelmenhorstLower Saxony, Germany
    641.1×
  181. 181DunkirkHauts-de-France, France
    641.1×
  182. 182Frýdek-MístekMoravian-Silesian Region, Czechia
    631.1×
  183. 182El CajonCalifornia, United States
    631.1×
  184. 184GelsenkirchenNorth Rhine-Westphalia, Germany
    631.0×
  185. 184Le MansPays de la Loire, France
    631.0×
  186. 184Blankenfelde-MahlowBrandenburg, Germany
    631.0×
  187. 187Bang KapiBangkok, Thailand
    631.0×
  188. 187Joué-lès-ToursCentre-Val de Loire, France
    631.0×
  189. 189NantesPays de la Loire, France
    631.0×
  190. 190YangonYangon, Myanmar
    631.0×
  191. 191TeltowBrandenburg, Germany
    631.0×
  192. 191AnkenyIowa, United States
    631.0×
  193. 193AntananarivoAnalamanga, Madagascar
    621.0×
  194. 193Phra PradaengSamut Prakan, Thailand
    621.0×
  195. 195La RochelleNew Aquitaine, France
    621.0×
  196. 195AuxerreBourgogne-Franche-Comté, France
    621.0×
  197. 197TroyesGrand Est, France
    621.0×
  198. 198Schwedt (Oder)Brandenburg, Germany
    621.0×
  199. 198OberhausenNorth Rhine-Westphalia, Germany
    621.0×
  200. 198DüsseldorfNorth Rhine-Westphalia, Germany
    621.0×

Top 200 of 1,294 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, May 14, 2023, smogrank.com/history/2023-05-14 (accessed 2 Oct 2026).

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