SmogRank / History / week of August 7, 2023

Most polluted cities, week of August 7, 2023

1,816 cities ranked by their average PM2.5 over the 7 days; the worst was Morelia, Mexico, at 275.8 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1MoreliaMichoacán, Mexico
    275.8
  2. 2BadgerAlaska, United States
    72.8
  3. 3ManamaManama, Bahrain
    65.2
  4. 4FairbanksAlaska, United States
    62.4
  5. 5Dhakalow-cost sensorsDhaka Division, Bangladesh
    59.7
  6. 6KigaliKigali, Rwanda
    57.0
  7. 7JakartaJakarta, Indonesia
    56.2
  8. 8Addis AbabaAddis Ababa, Ethiopia
    45.1
  9. 9Kampalalow-cost sensorsCentral Region, Uganda
    44.8
  10. 10Lahorelow-cost sensorsPunjab, Pakistan
    44.6
  11. 11Şabāḩ as SālimMubārak al Kabīr, Kuwait
    44.2
  12. 12KolkataWest Bengal, India
    43.6
  13. 13DushanbeDushanbe, Tajikistan
    43.4
  14. 14Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    42.6
  15. 15Islamabadlow-cost sensorsIslamabad, Pakistan
    33.4
  16. 15HanoiHanoi, Vietnam
    33.4
  17. 17Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    33.0
  18. 18BeijingBeijing, China
    32.7
  19. 18MexicaliBaja California, Mexico
    32.7
  20. 20Santa Anita - Los FicusLima region, Peru
    31.4
  21. 21ChennaiTamil Nadu, India
    31.2
  22. 22XonacatlánMéxico, Mexico
    31.0
  23. 23TlaquepaqueJalisco, Mexico
    29.1
  24. 24HyderabadTelangana, India
    27.5
  25. 25DelhiDelhi, India
    27.3
  26. 26BakuBaki, Azerbaijan
    25.5
  27. 27CalexicoCalifornia, United States
    25.2
  28. 28NairobiNairobi County, Kenya
    25.0
  29. 28PristinaPristina, Kosovo
    25.0
  30. 30CholulaPuebla, Mexico
    24.5
  31. 31BamakoBamako, Mali
    24.3
  32. 32Victoria de DurangoDurango, Mexico
    24.2
  33. 33Karachilow-cost sensorsSindh, Pakistan
    23.7
  34. 34TolucaMéxico, Mexico
    23.4
  35. 35SarajevoFederation of B&H, Bosnia and Herzegovina
    23.1
  36. 36LimaLima Province, Peru
    22.4
  37. 37N'DjamenaN’Djaména, Chad
    21.9
  38. 38Santa CatarinaNuevo León, Mexico
    21.8
  39. 38Ciudad Benito JuárezNuevo León, Mexico
    21.8
  40. 40GuangzhouGuangdong, China
    21.5
  41. 41AntananarivoAnalamanga, Madagascar
    20.9
  42. 42Alcalá de HenaresMadrid, Spain
    20.0
  43. 43CuencaCastille-La Mancha, Spain
    19.8
  44. 43BurgosCastille and León, Spain
    19.8
  45. 45Chiang Mailow-cost sensorsChiang Mai, Thailand
    19.7
  46. 45San Salvador TizatlalliMéxico, Mexico
    19.7
  47. 47CelayaGuanajuato, Mexico
    19.2
  48. 48Santa Cruz de TenerifeCanary Islands, Spain
    18.8
  49. 49Granadilla de AbonaCanary Islands, Spain
    18.7
  50. 49Ciudad JuárezChihuahua, Mexico
    18.7
  51. 51MóstolesMadrid, Spain
    18.6
  52. 51Collado-VillalbaMadrid, Spain
    18.6
  53. 53SliemaTas-Sliema, Malta
    18.3
  54. 54San Andrés TuxtlaVeracruz, Mexico
    18.0
  55. 54Villa Poeta José Gálvez BarrenecheaLima region, Peru
    18.0
  56. 54MonterreyNuevo León, Mexico
    18.0
  57. 57ValdemoroMadrid, Spain
    17.5
  58. 58ArrecifeCanary Islands, Spain
    17.4
  59. 58Naucalpan de JuárezMéxico, Mexico
    17.4
  60. 60Swift CurrentSaskatchewan, Canada
    17.2
  61. 61AlgecirasAndalusia, Spain
    17.0
  62. 62Tepeji del Río de OcampoHidalgo, Mexico
    16.9
  63. 62EdmontonAlberta, Canada
    16.9
  64. 62Jardines de la SillaNuevo León, Mexico
    16.9
  65. 65MaspalomasCanary Islands, Spain
    16.7
  66. 66ChihuahuaChihuahua, Mexico
    16.6
  67. 66HollandMichigan, United States
    16.6
  68. 68Wan ChaiWan Chai, Hong Kong
    16.5
  69. 69ReginaSaskatchewan, Canada
    16.3
  70. 70La Línea de la ConcepciónAndalusia, Spain
    16.1
  71. 71Tha BoNong Khai, Thailand
    16.0
  72. 71HuelvaAndalusia, Spain
    16.0
  73. 73NagoOkinawa, Japan
    15.9
  74. 74Ulu BedokSingapore
    15.8
  75. 74West MemphisArkansas, United States
    15.8
  76. 74BendOregon, United States
    15.8
  77. 77Ang Mo Kio New TownSingapore
    15.7
  78. 78Ciudad NezahualcoyotlMéxico, Mexico
    15.5
  79. 78Cadereyta JiménezNuevo León, Mexico
    15.5
  80. 80ColomboWestern Province, Sri Lanka
    15.4
  81. 81AlgeteMadrid, Spain
    15.3
  82. 82Abujalow-cost sensorsFCT, Nigeria
    14.9
  83. 82San Luis de la PazGuanajuato, Mexico
    14.9
  84. 84SalorTashkent Region, Uzbekistan
    14.8
  85. 84TakanabeMiyazaki, Japan
    14.8
  86. 84ShintomiMiyazaki, Japan
    14.8
  87. 87OkinawaOkinawa, Japan
    14.7
  88. 88San RoqueAndalusia, Spain
    14.4
  89. 89VeracruzVeracruz, Mexico
    14.3
  90. 89RedmondOregon, United States
    14.3
  91. 91NahaOkinawa, Japan
    14.0
  92. 91GuanajuatoGuanajuato, Mexico
    14.0
  93. 91Lexingtonlow-cost sensorsMassachusetts, United States
    14.0
  94. 94Mexico CityMexico City, Mexico
    13.9
  95. 95DębicaSubcarpathia, Poland
    13.8
  96. 95SevillaAndalusia, Spain
    13.8
  97. 95ApizacoTlaxcala, Mexico
    13.8
  98. 98Las Palmas de Gran CanariaCanary Islands, Spain
    13.7
  99. 98CandelariaCanary Islands, Spain
    13.7
  100. 100Lagoslow-cost sensorsLagos, Nigeria
    13.6
  101. 100RochesterMinnesota, United States
    13.6
  102. 102BurnsvilleMinnesota, United States
    13.5
  103. 102San Francisco De BorjaLima region, Peru
    13.5
  104. 104Bangkoklow-cost sensorsBangkok, Thailand
    13.4
  105. 104TakasakiGunma, Japan
    13.4
  106. 104Santiago de QuerétaroQuerétaro, Mexico
    13.4
  107. 107BaytownTexas, United States
    13.2
  108. 107BensalemPennsylvania, United States
    13.2
  109. 109KasaokaOkayama, Japan
    13.1
  110. 109San IsidroCanary Islands, Spain
    13.1
  111. 109CórdobaAndalusia, Spain
    13.1
  112. 109ShakopeeMinnesota, United States
    13.1
  113. 109BismarckNorth Dakota, United States
    13.1
  114. 114CosladaMadrid, Spain
    13.0
  115. 114NaplesCampania, Italy
    13.0
  116. 114Fort LauderdaleFlorida, United States
    13.0
  117. 117ŁukówLublin, Poland
    12.9
  118. 117Queenstown Estatelow-cost sensorsSingapore
    12.9
  119. 117AnconaThe Marches, Italy
    12.9
  120. 120NobeokaMiyazaki, Japan
    12.8
  121. 120AronaCanary Islands, Spain
    12.8
  122. 120KrakówLesser Poland, Poland
    12.8
  123. 120MadridMadrid, Spain
    12.8
  124. 120CalgaryAlberta, Canada
    12.8
  125. 125Kathmandulow-cost sensorsBagmati Province, Nepal
    12.7
  126. 125PalenciaCastille and León, Spain
    12.7
  127. 125Saint PaulMinnesota, United States
    12.7
  128. 125ElizabethNew Jersey, United States
    12.7
  129. 129IrapuatoGuanajuato, Mexico
    12.6
  130. 129MinneapolisMinnesota, United States
    12.6
  131. 129CranbrookBritish Columbia, Canada
    12.6
  132. 129Rouyn-NorandaQuebec, Canada
    12.6
  133. 133Franklin ParkIllinois, United States
    12.5
  134. 134San Miguel de AllendeGuanajuato, Mexico
    12.4
  135. 135JesiThe Marches, Italy
    12.2
  136. 135AlessandriaPiedmont, Italy
    12.2
  137. 135León de los AldamaGuanajuato, Mexico
    12.2
  138. 135PeoriaIllinois, United States
    12.2
  139. 135PortlandMaine, United States
    12.2
  140. 135AltamontOregon, United States
    12.2
  141. 135SaskatoonSaskatchewan, Canada
    12.2
  142. 142ToledoCastille-La Mancha, Spain
    12.1
  143. 142MostaIl-Mosta, Malta
    12.1
  144. 142DěčínÚstí nad Labem Region, Czechia
    12.1
  145. 142NewarkDelaware, United States
    12.1
  146. 142KalamazooMichigan, United States
    12.1
  147. 147Tuen MunTuen Mun, Hong Kong
    12.0
  148. 147NichinanMiyazaki, Japan
    12.0
  149. 147BailénAndalusia, Spain
    12.0
  150. 147São PauloSão Paulo, Brazil
    12.0
  151. 147Pachuca de SotoHidalgo, Mexico
    12.0
  152. 147PhiladelphiaPennsylvania, United States
    12.0
  153. 147Calumet CityIllinois, United States
    12.0
  154. 147Apple ValleyMinnesota, United States
    12.0
  155. 155GranadaAndalusia, Spain
    11.9
  156. 155AgüimesCanary Islands, Spain
    11.9
  157. 155Saint CloudMinnesota, United States
    11.9
  158. 158NiskoSubcarpathia, Poland
    11.8
  159. 158ArucasCanary Islands, Spain
    11.8
  160. 158LaredoTexas, United States
    11.8
  161. 158NorthbrookIllinois, United States
    11.8
  162. 162ShenyangLiaoning, China
    11.7
  163. 162Český TěšínMoravian-Silesian Region, Czechia
    11.7
  164. 162San Juan del RíoQuerétaro, Mexico
    11.7
  165. 162GalvestonTexas, United States
    11.7
  166. 162JolietIllinois, United States
    11.7
  167. 162Grand RapidsMichigan, United States
    11.7
  168. 162Great FallsMontana, United States
    11.7
  169. 169NagaiYamagata, Japan
    11.6
  170. 169OlomoucOlomouc Region, Czechia
    11.6
  171. 169HoustonTexas, United States
    11.6
  172. 169Eau ClaireWisconsin, United States
    11.6
  173. 173ZamośćLublin, Poland
    11.5
  174. 173AnanTokushima, Japan
    11.5
  175. 173ClintonIowa, United States
    11.5
  176. 173TrentonNew Jersey, United States
    11.5
  177. 177JeddahMecca Region, Saudi Arabia
    11.4
  178. 177GraysEngland, United Kingdom
    11.4
  179. 177Torrejón de ArdozMadrid, Spain
    11.4
  180. 177HomesteadFlorida, United States
    11.4
  181. 177AtlantaGeorgia, United States
    11.4
  182. 177AugustaMaine, United States
    11.4
  183. 177MadisonWisconsin, United States
    11.4
  184. 177MilwaukeeWisconsin, United States
    11.4
  185. 185Kuala Lumpurlow-cost sensorsKuala Lumpur, Malaysia
    11.3
  186. 185MiyazakiMiyazaki, Japan
    11.3
  187. 185RoveretoTrentino-Alto Adige, Italy
    11.3
  188. 185DetroitMichigan, United States
    11.3
  189. 185AmamiKagoshima, Japan
    11.3
  190. 190FanlingNorth District, Hong Kong
    11.2
  191. 190KurumeFukuoka, Japan
    11.2
  192. 190CuernavacaMorelos, Mexico
    11.2
  193. 190Port ArthurTexas, United States
    11.2
  194. 190Des PlainesIllinois, United States
    11.2
  195. 190WaukeshaWisconsin, United States
    11.2
  196. 190Spanish ForkUtah, United States
    11.2
  197. 190Red DeerAlberta, Canada
    11.2
  198. 190WindsorOntario, Canada
    11.2
  199. 199MiyakonojōMiyazaki, Japan
    11.1
  200. 199JaénAndalusia, Spain
    11.1

Top 200 of 1,816 shown.

Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+