SmogRank / History / May 9, 2023

Most polluted cities on May 9, 2023

1,300 cities ranked by their average PM2.5 over the day; the worst was Linares, Chile, at 115.0 µg/m³. Each city's own local calendar day.

← Linares 115.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for May 9, 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. 1LinaresMaule Region, Chile
    1937.7×
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    1867.0×
  3. 3OsornoLos Lagos Region, Chile
    1846.8×
  4. 4DelhiDelhi, India
    1756.0×
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    1715.6×
  6. 6CuricóMaule Region, Chile
    1675.2×
  7. 7TlaquepaqueJalisco, Mexico
    1624.7×
  8. 8TalaganteSantiago Metropolitan, Chile
    1584.4×
  9. 9Fort St. JohnBritish Columbia, Canada
    1584.4×
  10. 10TalcaMaule Region, Chile
    1564.2×
  11. 11La UniónLos Ríos Region, Chile
    1564.1×
  12. 12SantiagoSantiago Metropolitan, Chile
    1554.1×
  13. 13Grande PrairieAlberta, Canada
    1554.0×
  14. 14Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1544.0×
  15. 15Puerto VarasLos Lagos Region, Chile
    1533.9×
  16. 16HualquiBiobio, Chile
    1523.8×
  17. 17RancaguaO'Higgins Region, Chile
    1463.6×
  18. 18KolkataWest Bengal, India
    1463.6×
  19. 19QuillotaValparaiso, Chile
    1433.5×
  20. 20Viña del MarValparaiso, Chile
    1433.5×
  21. 21BaghdadBaghdad, Iraq
    1433.5×
  22. 22AstanaAstana, Kazakhstan
    1413.4×
  23. 23San CarlosÑuble, Chile
    1313.2×
  24. 24CoronelBiobio, Chile
    1303.2×
  25. 25Puerto AysénAysén, Chile
    1253.0×
  26. 26Puerto MonttLos Lagos Region, Chile
    1253.0×
  27. 27JakartaJakarta, Indonesia
    1243.0×
  28. 28Kathmandulow-cost sensorsBagmati Province, Nepal
    1243.0×
  29. 29NacimientoBiobio, Chile
    1212.9×
  30. 30ToméBiobio, Chile
    1212.9×
  31. 31GuangzhouGuangdong, China
    1182.8×
  32. 31CoquimboCoquimbo Region, Chile
    1182.8×
  33. 33ConcónValparaiso, Chile
    1172.8×
  34. 34Guatemala CityGuatemala, Guatemala
    1152.7×
  35. 35Addis AbabaAddis Ababa, Ethiopia
    1122.7×
  36. 36La SerenaCoquimbo Region, Chile
    1122.7×
  37. 37BeijingBeijing, China
    1112.6×
  38. 38ValdiviaLos Ríos Region, Chile
    1102.6×
  39. 39ChennaiTamil Nadu, India
    1092.6×
  40. 39Puente AltoSantiago Metropolitan, Chile
    1092.6×
  41. 41HanoiHanoi, Vietnam
    1092.6×
  42. 42Ciudad JuárezChihuahua, Mexico
    1082.6×
  43. 43KigaliKigali, Rwanda
    1072.5×
  44. 43RabinalBaja Verapaz, Guatemala
    1072.5×
  45. 45CauquenesMaule Region, Chile
    1062.5×
  46. 46QuinteroValparaiso, Chile
    1052.5×
  47. 47ChillánÑuble, Chile
    1032.4×
  48. 48PylaíaCentral Macedonia, Greece
    1032.4×
  49. 49Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1032.4×
  50. 50ConcepciónBiobio, Chile
    1002.3×
  51. 51ChiguayanteBiobio, Chile
    992.3×
  52. 52HyderabadTelangana, India
    982.3×
  53. 52CuranilahueBiobio, Chile
    982.3×
  54. 54CelayaGuanajuato, Mexico
    962.2×
  55. 55TalcahuanoBiobio, Chile
    922.1×
  56. 56TemucoAraucania, Chile
    912.0×
  57. 56CoyhaiqueAysén, Chile
    912.0×
  58. 58Karachilow-cost sensorsSindh, Pakistan
    902.0×
  59. 59LotaBiobio, Chile
    902.0×
  60. 60Kampalalow-cost sensorsCentral Region, Uganda
    881.9×
  61. 61AntofagastaAntofagasta, Chile
    861.8×
  62. 62CopiapóAtacama, Chile
    851.8×
  63. 63Los ÁngelesBiobio, Chile
    851.8×
  64. 64Alto HospicioTarapacá, Chile
    811.7×
  65. 65León de los AldamaGuanajuato, Mexico
    801.6×
  66. 65Prince GeorgeBritish Columbia, Canada
    801.6×
  67. 67SalamancaGuanajuato, Mexico
    791.6×
  68. 68ManamaManama, Bahrain
    781.6×
  69. 69TocopillaAntofagasta, Chile
    781.6×
  70. 70Hacienda Santa FeJalisco, Mexico
    771.5×
  71. 71YangonYangon, Myanmar
    761.5×
  72. 71Tha BoNong Khai, Thailand
    761.5×
  73. 73Khlong LuangPathum Thani, Thailand
    761.5×
  74. 74BeneventoCampania, Italy
    751.5×
  75. 75VentspilsVentspils, Latvia
    751.5×
  76. 75Islamabadlow-cost sensorsIslamabad, Pakistan
    751.5×
  77. 77BangkokBangkok, Thailand
    741.4×
  78. 78AbasoloGuanajuato, Mexico
    741.4×
  79. 79MumbaiMaharashtra, India
    731.4×
  80. 80Las Palmas de Gran CanariaCanary Islands, Spain
    711.3×
  81. 81IndioCalifornia, United States
    711.3×
  82. 82Bang KapiBangkok, Thailand
    711.3×
  83. 82GuanajuatoGuanajuato, Mexico
    711.3×
  84. 84Samut PrakanSamut Prakan, Thailand
    701.3×
  85. 84Phra PradaengSamut Prakan, Thailand
    701.3×
  86. 86Naucalpan de JuárezMéxico, Mexico
    701.3×
  87. 87ColomboWestern Province, Sri Lanka
    701.3×
  88. 88Mueang NonthaburiNonthaburi, Thailand
    691.3×
  89. 89Mexico CityMexico City, Mexico
    691.3×
  90. 90MooreOklahoma, United States
    691.2×
  91. 91CártamaAndalusia, Spain
    681.2×
  92. 92AcharnésAttica, Greece
    681.2×
  93. 93Nakhon PathomNakhon Pathom, Thailand
    671.2×
  94. 94TexarkanaTexas, United States
    671.2×
  95. 95La Línea de la ConcepciónAndalusia, Spain
    671.2×
  96. 95WolfsbergCarinthia, Austria
    671.2×
  97. 95AlessandriaPiedmont, Italy
    671.2×
  98. 98MainzRheinland-Pfalz, Germany
    671.2×
  99. 98CalamaAntofagasta, Chile
    671.2×
  100. 100San Miguel de AllendeGuanajuato, Mexico
    661.2×
  101. 101Almatylow-cost sensorsAlmaty, Kazakhstan
    661.2×
  102. 102Nong KhaemBangkok, Thailand
    661.1×
  103. 103AntananarivoAnalamanga, Madagascar
    661.1×
  104. 104EdmondOklahoma, United States
    661.1×
  105. 105Alcalá de HenaresMadrid, Spain
    651.1×
  106. 105HobbsNew Mexico, United States
    651.1×
  107. 107North CharlestonSouth Carolina, United States
    651.1×
  108. 108AthensAttica, Greece
    651.1×
  109. 108DushanbeDushanbe, Tajikistan
    651.1×
  110. 108Puerto del RosarioCanary Islands, Spain
    651.1×
  111. 108San Luis de la PazGuanajuato, Mexico
    651.1×
  112. 108BirminghamAlabama, United States
    651.1×
  113. 108HueytownAlabama, United States
    651.1×
  114. 114WiesbadenHesse, Germany
    651.1×
  115. 114Oklahoma CityOklahoma, United States
    651.1×
  116. 114BrawleyCalifornia, United States
    651.1×
  117. 117ArrecifeCanary Islands, Spain
    641.1×
  118. 117IrapuatoGuanajuato, Mexico
    641.1×
  119. 119Frankfurt am MainHesse, Germany
    641.1×
  120. 120ModugnoApulia, Italy
    641.1×
  121. 120GadsdenAlabama, United States
    641.1×
  122. 122SavannahGeorgia, United States
    641.1×
  123. 123SpringdaleArkansas, United States
    641.1×
  124. 124AthensGeorgia, United States
    631.1×
  125. 124GainesvilleGeorgia, United States
    631.1×
  126. 126OpavaMoravian-Silesian Region, Czechia
    631.0×
  127. 127Lagoslow-cost sensorsLagos, Nigeria
    631.0×
  128. 127TulsaOklahoma, United States
    631.0×
  129. 129BorkenNorth Rhine-Westphalia, Germany
    631.0×
  130. 129HavířovMoravian-Silesian Region, Czechia
    631.0×
  131. 131BakuBaki, Azerbaijan
    631.0×
  132. 131WormsRheinland-Pfalz, Germany
    631.0×
  133. 131MannheimBaden-Wurttemberg, Germany
    631.0×
  134. 134AsprópyrgosAttica, Greece
    621.0×
  135. 135Candler-McAfeeGeorgia, United States
    621.0×
  136. 136EschbornHesse, Germany
    611.0×
  137. 136PesaroThe Marches, Italy
    611.0×
  138. 138ConakryConakry, Guinea
    611.0×
  139. 138Ludwigshafen am RheinRheinland-Pfalz, Germany
    611.0×
  140. 138Limburg an der LahnHesse, Germany
    611.0×
  141. 138St. LouisMissouri, United States
    611.0×
  142. 138YumaArizona, United States
    611.0×
  143. 143AlgiersAlgiers, Algeria
    611.0×
  144. 144GrazStyria, Austria
    611.0×
  145. 144Rüsselsheim am MainHesse, Germany
    611.0×
  146. 144Banja LukaSrpska, Bosnia and Herzegovina
    611.0×
  147. 144EdmontonAlberta, Canada
    611.0×
  148. 148LawrencevilleGeorgia, United States
    610.9×
  149. 148JacksonMississippi, United States
    610.9×
  150. 148Ponca CityOklahoma, United States
    610.9×
  151. 148SaginawTexas, United States
    610.9×
  152. 152OstravaMoravian-Silesian Region, Czechia
    600.9×
  153. 152HattiesburgMississippi, United States
    600.9×
  154. 152HernandoMississippi, United States
    600.9×
  155. 155NeuwiedRheinland-Pfalz, Germany
    600.9×
  156. 155Le LamentinMartinique, Martinique
    600.9×
  157. 155Fort WorthTexas, United States
    600.9×
  158. 158MontgomeryAlabama, United States
    600.9×
  159. 158Little RockArkansas, United States
    600.9×
  160. 158DentonTexas, United States
    600.9×
  161. 161San RoqueAndalusia, Spain
    600.9×
  162. 161TrussvilleAlabama, United States
    600.9×
  163. 161MaconGeorgia, United States
    600.9×
  164. 161JenksOklahoma, United States
    600.9×
  165. 165ThessaloníkiCentral Macedonia, Greece
    590.9×
  166. 166Spišská Nová VesKošice Region, Slovakia
    590.9×
  167. 166KrefeldNorth Rhine-Westphalia, Germany
    590.9×
  168. 168GießenHesse, Germany
    590.9×
  169. 168JesiThe Marches, Italy
    590.9×
  170. 170BensheimHesse, Germany
    590.9×
  171. 170Le RobertMartinique, Martinique
    590.9×
  172. 170West MemphisArkansas, United States
    590.9×
  173. 170AugustaGeorgia, United States
    590.9×
  174. 174SliemaTas-Sliema, Malta
    580.9×
  175. 174BellinzonaTicino, Switzerland
    580.9×
  176. 174Fort SmithArkansas, United States
    580.9×
  177. 177PrešovPrešov Region, Slovakia
    580.9×
  178. 177ArucasCanary Islands, Spain
    580.9×
  179. 177AtlantaGeorgia, United States
    580.9×
  180. 180LingenLower Saxony, Germany
    580.9×
  181. 180La SpeziaLiguria, Italy
    580.9×
  182. 180Ceglie MessapicaApulia, Italy
    580.9×
  183. 183UlmBaden-Wurttemberg, Germany
    580.9×
  184. 183DuisburgNorth Rhine-Westphalia, Germany
    580.9×
  185. 183Phenix CityAlabama, United States
    580.9×
  186. 183ValdostaGeorgia, United States
    580.9×
  187. 187SundsvallVästernorrland, Sweden
    580.8×
  188. 187LampertheimHesse, Germany
    580.8×
  189. 187AnconaThe Marches, Italy
    580.8×
  190. 187ConwaySouth Carolina, United States
    580.8×
  191. 187GreenvilleSouth Carolina, United States
    580.8×
  192. 187Saint AndrewsSouth Carolina, United States
    580.8×
  193. 193La OrotavaCanary Islands, Spain
    580.8×
  194. 193AnsfeldenUpper Austria, Austria
    580.8×
  195. 193HuntsvilleAlabama, United States
    580.8×
  196. 196AlbanyGeorgia, United States
    570.8×
  197. 196Warner RobinsGeorgia, United States
    570.8×
  198. 196AdaOklahoma, United States
    570.8×
  199. 196East RidgeTennessee, United States
    570.8×
  200. 200GardanneProvence-Alpes-Côte d'Azur, France
    570.8×

Top 200 of 1,300 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 9, 2023, smogrank.com/history/2023-05-09 (accessed 2 Oct 2026).

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