SmogRank / History / week of January 23, 2023

Most polluted cities, week of January 23, 2023

1,073 cities ranked by their average PM2.5 over the 7 days; the worst was Gómez Palacio, Mexico, at 917.4 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1Gómez PalacioDurango, Mexico
    917.4
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    238.5
  3. 3DushanbeDushanbe, Tajikistan
    193.1
  4. 4SalorTashkent Region, Uzbekistan
    154.1
  5. 5Lahorelow-cost sensorsPunjab, Pakistan
    146.1
  6. 6DelhiDelhi, India
    125.0
  7. 7N'DjamenaN’Djaména, Chad
    122.0
  8. 8Almatylow-cost sensorsAlmaty, Kazakhstan
    117.1
  9. 9Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    99.4
  10. 10Islamabadlow-cost sensorsIslamabad, Pakistan
    98.0
  11. 11MumbaiMaharashtra, India
    94.8
  12. 12Abujalow-cost sensorsFCT, Nigeria
    90.6
  13. 13Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    86.8
  14. 14San Luis PotosíSan Luis Potosí, Mexico
    85.2
  15. 15Şabāḩ as SālimMubārak al Kabīr, Kuwait
    75.2
  16. 16Kathmandulow-cost sensorsBagmati Province, Nepal
    74.8
  17. 17BaghdadBaghdad, Iraq
    73.4
  18. 18Kampalalow-cost sensorsCentral Region, Uganda
    67.3
  19. 19HyderabadTelangana, India
    66.3
  20. 20AlexandriaAlexandria, Egypt
    62.9
  21. 20HanoiHanoi, Vietnam
    62.9
  22. 22KigaliKigali, Rwanda
    62.8
  23. 23BamakoBamako, Mali
    60.3
  24. 24Karachilow-cost sensorsSindh, Pakistan
    58.1
  25. 25YangonYangon, Myanmar
    53.9
  26. 26Tha BoNong Khai, Thailand
    53.6
  27. 27Banja LukaSrpska, Bosnia and Herzegovina
    49.5
  28. 28San Mateo AtencoMéxico, Mexico
    44.3
  29. 29Ciudad Benito JuárezNuevo León, Mexico
    39.6
  30. 30TolucaMéxico, Mexico
    35.2
  31. 31SallanchesAuvergne-Rhône-Alpes, France
    34.7
  32. 32CelayaGuanajuato, Mexico
    34.5
  33. 33AshgabatAshgabat, Turkmenistan
    33.5
  34. 33KhartoumKhartoum, Sudan
    33.5
  35. 35GuangzhouGuangdong, China
    33.1
  36. 36Wan ChaiWan Chai, Hong Kong
    32.9
  37. 37MexicaliBaja California, Mexico
    32.7
  38. 38BitolaBitola, North Macedonia
    32.5
  39. 39AmmanAmman, Jordan
    32.2
  40. 40ShanghaiShanghai, China
    32.0
  41. 41ColomboWestern Province, Sri Lanka
    31.7
  42. 41Jastrzębie ZdrójSilesia, Poland
    31.7
  43. 43RacibórzSilesia, Poland
    31.2
  44. 44ŁaskŁódź Voivodeship, Poland
    31.1
  45. 44Bielsko-BialaSilesia, Poland
    31.1
  46. 46Villa Poeta José Gálvez BarrenecheaLima region, Peru
    30.9
  47. 47BakuBaki, Azerbaijan
    30.7
  48. 47XonacatlánMéxico, Mexico
    30.7
  49. 49IrapuatoGuanajuato, Mexico
    30.3
  50. 50MeylanAuvergne-Rhône-Alpes, France
    30.0
  51. 51DrammenBuskerud, Norway
    29.8
  52. 52ŻyrardówMazovia, Poland
    29.7
  53. 52GarcíaNuevo León, Mexico
    29.7
  54. 52Santa CatarinaNuevo León, Mexico
    29.7
  55. 55Tin Shui WaiYuen Long, Hong Kong
    29.3
  56. 55MonterreyNuevo León, Mexico
    29.3
  57. 57KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    29.0
  58. 58ZapopanJalisco, Mexico
    28.8
  59. 59RadomMazovia, Poland
    28.5
  60. 60GuadalajaraJalisco, Mexico
    28.4
  61. 61FanlingNorth District, Hong Kong
    28.1
  62. 62VolosThessaly, Greece
    28.0
  63. 62Addis AbabaAddis Ababa, Ethiopia
    28.0
  64. 62CholulaPuebla, Mexico
    28.0
  65. 65ChisinauChișinău Municipality, Moldova
    27.8
  66. 65OtwockMazovia, Poland
    27.8
  67. 67WrocławLower Silesia, Poland
    27.7
  68. 68HanfordCalifornia, United States
    27.3
  69. 69PátraWest Greece, Greece
    27.2
  70. 69LublinLublin, Poland
    27.2
  71. 69FresnoCalifornia, United States
    27.2
  72. 72PułtuskMazovia, Poland
    27.0
  73. 72San Tung Chung HangIslands, Hong Kong
    27.0
  74. 74Mong KokYau Tsim Mong District, Hong Kong
    26.9
  75. 75San Salvador TizatlalliMéxico, Mexico
    26.7
  76. 76LimaLima Province, Peru
    26.5
  77. 77Tepeji del Río de OcampoHidalgo, Mexico
    26.2
  78. 78KutnoŁódź Voivodeship, Poland
    26.1
  79. 79VictoriaCentral and Western, Hong Kong
    26.0
  80. 79GrenobleAuvergne-Rhône-Alpes, France
    26.0
  81. 79AguascalientesAguascalientes, Mexico
    26.0
  82. 82AlessandriaPiedmont, Italy
    25.9
  83. 82Ciudad NezahualcoyotlMéxico, Mexico
    25.9
  84. 84Kwai ChungKwai Tsing District, Hong Kong
    25.8
  85. 85Ciudad General EscobedoNuevo León, Mexico
    25.7
  86. 86DouaiHauts-de-France, France
    25.6
  87. 86VisaliaCalifornia, United States
    25.6
  88. 88Botevgradlow-cost sensorsSofia, Bulgaria
    25.4
  89. 88RzeszówSubcarpathia, Poland
    25.4
  90. 88Zacatepec de HidalgoMorelos, Mexico
    25.4
  91. 91Tsuen WanTsuen Wan, Hong Kong
    25.2
  92. 92Sha TinSha Tin, Hong Kong
    25.0
  93. 92Accralow-cost sensorsGreater Accra, Ghana
    25.0
  94. 92LilleHauts-de-France, France
    25.0
  95. 92TurinPiedmont, Italy
    25.0
  96. 96AugustówPodlasie, Poland
    24.9
  97. 96Ciudad ApodacaNuevo León, Mexico
    24.9
  98. 98ValenciennesHauts-de-France, France
    24.8
  99. 98TijuanaBaja California, Mexico
    24.8
  100. 100Sau Mau PingKwun Tong District, Hong Kong
    24.7
  101. 101RužomberokŽilina Region, Slovakia
    24.6
  102. 102PłockMazovia, Poland
    24.5
  103. 102LęborkPomerania, Poland
    24.5
  104. 102SalamancaGuanajuato, Mexico
    24.5
  105. 105KrapkowiceOpole Voivodeship, Poland
    24.4
  106. 105BakersfieldCalifornia, United States
    24.4
  107. 107SiedlceMazovia, Poland
    24.3
  108. 108RoubaixHauts-de-France, France
    24.0
  109. 109WarsawMazovia, Poland
    23.9
  110. 109StarachowiceŚwiętokrzyskie, Poland
    23.9
  111. 111Spišská Nová VesKošice Region, Slovakia
    23.8
  112. 111GrajewoPodlasie, Poland
    23.8
  113. 111Český TěšínMoravian-Silesian Region, Czechia
    23.8
  114. 111ToruńKujawsko-Pomorskie, Poland
    23.8
  115. 115WawerMazovia, Poland
    23.7
  116. 115MarseilleProvence-Alpes-Côte d'Azur, France
    23.7
  117. 115SzamotułyGreater Poland, Poland
    23.7
  118. 118EindhovenNorth Brabant, The Netherlands
    23.6
  119. 119Tai PoTai Po, Hong Kong
    23.5
  120. 120PruszkówMazovia, Poland
    23.4
  121. 121ChambéryAuvergne-Rhône-Alpes, France
    23.3
  122. 121ZgierzŁódź Voivodeship, Poland
    23.3
  123. 123ParedesPorto, Portugal
    23.2
  124. 124RouenNormandy, France
    23.0
  125. 124WłocławekKujawsko-Pomorskie, Poland
    23.0
  126. 124CorcoranCalifornia, United States
    23.0
  127. 127AberdeenSouthern District, Hong Kong
    22.8
  128. 127Zielona GóraLubusz, Poland
    22.8
  129. 127León de los AldamaGuanajuato, Mexico
    22.8
  130. 130PueblaPuebla, Mexico
    22.7
  131. 130CalexicoCalifornia, United States
    22.7
  132. 132TarnówLesser Poland, Poland
    22.5
  133. 132ŁukówLublin, Poland
    22.5
  134. 132Saint-QuentinHauts-de-France, France
    22.5
  135. 132GyőrGyőr-Moson-Sopron, Hungary
    22.5
  136. 136ManosqueProvence-Alpes-Côte d'Azur, France
    22.4
  137. 137KatowiceSilesia, Poland
    22.3
  138. 138BiałystokPodlasie, Poland
    22.2
  139. 139AthensAttica, Greece
    22.1
  140. 139EsztergomKomárom-Esztergom, Hungary
    22.1
  141. 139ŽilinaŽilina Region, Slovakia
    22.1
  142. 139OstravaMoravian-Silesian Region, Czechia
    22.1
  143. 143Santiago de QuerétaroQuerétaro, Mexico
    21.9
  144. 144HavířovMoravian-Silesian Region, Czechia
    21.8
  145. 145TilburgNorth Brabant, The Netherlands
    21.7
  146. 146Cluj-NapocaCluj County, Romania
    21.4
  147. 147Frýdek-MístekMoravian-Silesian Region, Czechia
    21.3
  148. 148JeddahMecca Region, Saudi Arabia
    21.0
  149. 148Sham Shui PoSham Shui Po District, Hong Kong
    21.0
  150. 148MonacoMunicipality of Monaco, Monaco
    21.0
  151. 148OpoleOpole Voivodeship, Poland
    21.0
  152. 152KętrzynWarmia-Masuria, Poland
    20.8
  153. 152AlbertvilleAuvergne-Rhône-Alpes, France
    20.8
  154. 152ZvolenBanská Bystrica Region, Slovakia
    20.8
  155. 152Valašské MeziříčíZlín, Czechia
    20.8
  156. 152Ecatepec de MorelosMéxico, Mexico
    20.8
  157. 157DunkirkHauts-de-France, France
    20.7
  158. 157PoznańGreater Poland, Poland
    20.7
  159. 159EłkWarmia-Masuria, Poland
    20.6
  160. 159HamarInnlandet, Norway
    20.6
  161. 161Kędzierzyn-KoźleOpole Voivodeship, Poland
    20.5
  162. 162NottinghamEngland, United Kingdom
    20.4
  163. 162ParisÎle-de-France, France
    20.4
  164. 164SuwałkiPodlasie, Poland
    20.3
  165. 164Ciudad JuárezChihuahua, Mexico
    20.3
  166. 164ModestoCalifornia, United States
    20.3
  167. 167PristinaPristina, Kosovo
    20.1
  168. 167VenrayLimburg, The Netherlands
    20.1
  169. 169Sevlievolow-cost sensorsGabrovo, Bulgaria
    20.0
  170. 170NiskoSubcarpathia, Poland
    19.8
  171. 170JarosławSubcarpathia, Poland
    19.8
  172. 170KrakówLesser Poland, Poland
    19.8
  173. 170KłodzkoLower Silesia, Poland
    19.8
  174. 174SenicaTrnava Region, Slovakia
    19.7
  175. 174Pachuca de SotoHidalgo, Mexico
    19.7
  176. 174MercedCalifornia, United States
    19.7
  177. 177NitraNitra Region, Slovakia
    19.6
  178. 178Konstancin-JeziornaMazovia, Poland
    19.5
  179. 178BelgradeCentral Serbia, Serbia
    19.5
  180. 178Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    19.5
  181. 181Mexico CityMexico City, Mexico
    19.4
  182. 182MielecSubcarpathia, Poland
    19.3
  183. 182SouthamptonEngland, United Kingdom
    19.3
  184. 182PauNew Aquitaine, France
    19.3
  185. 182MaderaCalifornia, United States
    19.3
  186. 186PejëPec, Kosovo
    19.2
  187. 186BeauvaisHauts-de-France, France
    19.2
  188. 186ŚwiecieKujawsko-Pomorskie, Poland
    19.2
  189. 189AnnemasseAuvergne-Rhône-Alpes, France
    19.0
  190. 189Jelenia GóraLower Silesia, Poland
    19.0
  191. 191KrosnoSubcarpathia, Poland
    18.9
  192. 192JasłoSubcarpathia, Poland
    18.8
  193. 192LisieuxNormandy, France
    18.8
  194. 192VeszprémVeszprém, Hungary
    18.8
  195. 195HayesEngland, United Kingdom
    18.7
  196. 195BohumínMoravian-Silesian Region, Czechia
    18.7
  197. 195Cadereyta JiménezNuevo León, Mexico
    18.7
  198. 198MartinŽilina Region, Slovakia
    18.4
  199. 199NairobiNairobi County, Kenya
    18.3
  200. 199DunaújvárosFejér, Hungary
    18.3

Top 200 of 1,073 shown.

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