SmogRank / History / week of January 27, 2025

Most polluted cities, week of January 27, 2025

2,011 cities ranked by their average PM2.5 over the 7 days; the worst was Dhaka, Bangladesh, at 240.4 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1Dhakalow-cost sensorsDhaka Division, Bangladesh
    240.4
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    213.6
  3. 3DelhiDelhi, India
    175.3
  4. 4KolkataWest Bengal, India
    124.7
  5. 5Kampalalow-cost sensorsCentral Region, Uganda
    121.5
  6. 6DushanbeDushanbe, Tajikistan
    115.1
  7. 7Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    96.5
  8. 8Kathmandulow-cost sensorsBagmati Province, Nepal
    89.2
  9. 9SalorTashkent Region, Uzbekistan
    82.4
  10. 10MumbaiMaharashtra, India
    80.0
  11. 11Islamabadlow-cost sensorsIslamabad, Pakistan
    78.7
  12. 12Ulan BatorUlaanbaatar, Mongolia
    78.5
  13. 13Şabāḩ as SālimMubārak al Kabīr, Kuwait
    78.1
  14. 14N'DjamenaN’Djaména, Chad
    74.6
  15. 15KraljevoCentral Serbia, Serbia
    70.1
  16. 16ShenyangLiaoning, China
    68.2
  17. 17Karachilow-cost sensorsSindh, Pakistan
    67.9
  18. 18KigaliKigali, Rwanda
    67.5
  19. 19HyderabadTelangana, India
    64.3
  20. 20Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    59.8
  21. 21Abujalow-cost sensorsFCT, Nigeria
    59.2
  22. 22DejCluj County, Romania
    56.6
  23. 23SmederevoCentral Serbia, Serbia
    56.1
  24. 24CairoCairo, Egypt
    53.7
  25. 25CodleaBrașov County, Romania
    51.7
  26. 26ChennaiTamil Nadu, India
    49.8
  27. 27YangonYangon, Myanmar
    48.3
  28. 27Tha BoNong Khai, Thailand
    48.3
  29. 29HanoiHanoi, Vietnam
    47.7
  30. 30Banja LukaSrpska, Bosnia and Herzegovina
    42.1
  31. 31Almatylow-cost sensorsAlmaty, Kazakhstan
    41.9
  32. 32LazarevacCentral Serbia, Serbia
    40.2
  33. 33Istanbullow-cost sensorsIstanbul, Turkey
    40.1
  34. 34ObrenovacCentral Serbia, Serbia
    39.8
  35. 35ZemunCentral Serbia, Serbia
    39.4
  36. 36BaghdadBaghdad, Iraq
    38.8
  37. 37ColomboWestern Province, Sri Lanka
    38.6
  38. 38KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    37.7
  39. 39BeijingBeijing, China
    37.6
  40. 40Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    37.4
  41. 41Cluj-NapocaCluj County, Romania
    37.3
  42. 42SarajevoFederation of B&H, Bosnia and Herzegovina
    37.0
  43. 43ŻywiecSilesia, Poland
    36.2
  44. 44ShanghaiShanghai, China
    36.1
  45. 45Accralow-cost sensorsGreater Accra, Ghana
    34.7
  46. 46FutogVojvodina, Serbia
    34.5
  47. 47PančevoVojvodina, Serbia
    34.0
  48. 48Skarżysko-KamiennaŚwiętokrzyskie, Poland
    33.6
  49. 49ThessaloníkiCentral Macedonia, Greece
    32.6
  50. 50MiskolcBorsod-Abaúj-Zemplén, Hungary
    32.3
  51. 51DhahranEastern Province, Saudi Arabia
    32.2
  52. 52RuseRuse, Bulgaria
    31.6
  53. 52XonacatlánMéxico, Mexico
    31.6
  54. 54Novi SadVojvodina, Serbia
    30.2
  55. 55IrapuatoGuanajuato, Mexico
    30.1
  56. 56AshgabatAshgabat, Turkmenistan
    29.8
  57. 56BelgradeCentral Serbia, Serbia
    29.8
  58. 58CraiovaDolj, Romania
    29.0
  59. 59GuangzhouGuangdong, China
    28.8
  60. 60Tomaszów LubelskiLublin, Poland
    28.7
  61. 61BucharestBucharest, Romania
    28.2
  62. 62Czechowice-DziedziceSilesia, Poland
    28.1
  63. 63BakuBaki, Azerbaijan
    27.6
  64. 63SremčicaCentral Serbia, Serbia
    27.6
  65. 65AthensAttica, Greece
    27.5
  66. 66RacibórzSilesia, Poland
    27.1
  67. 67ZgierzŁódź Voivodeship, Poland
    26.6
  68. 67BihaćFederation of B&H, Bosnia and Herzegovina
    26.6
  69. 69KłodzkoLower Silesia, Poland
    26.5
  70. 70LučenecBanská Bystrica Region, Slovakia
    26.3
  71. 71Silao de la VictoriaGuanajuato, Mexico
    26.0
  72. 72Jastrzębie ZdrójSilesia, Poland
    25.9
  73. 73KoprivnicaKoprivnica-Križevci, Croatia
    25.7
  74. 74PřerovOlomouc Region, Czechia
    25.4
  75. 75Chiayi CityTaiwan, Taiwan
    25.3
  76. 75HamarInnlandet, Norway
    25.3
  77. 77Addis AbabaAddis Ababa, Ethiopia
    25.1
  78. 78IaşiIași County, Romania
    24.7
  79. 78Bielsko-BialaSilesia, Poland
    24.7
  80. 80Quezon Citylow-cost sensorsNational Capital Region, Philippines
    24.5
  81. 81Naucalpan de JuárezMéxico, Mexico
    24.4
  82. 82LubańLower Silesia, Poland
    24.3
  83. 83BohumínMoravian-Silesian Region, Czechia
    24.1
  84. 84AugustówPodlasie, Poland
    23.8
  85. 85PátraWest Greece, Greece
    23.7
  86. 86OpoleOpole Voivodeship, Poland
    23.5
  87. 87KošiceKošice Region, Slovakia
    23.1
  88. 87RužomberokŽilina Region, Slovakia
    23.1
  89. 87DěčínÚstí nad Labem Region, Czechia
    23.1
  90. 90JinchengFukien, Taiwan
    22.8
  91. 91FengshanTakao, Taiwan
    22.7
  92. 91WłocławekKujawsko-Pomorskie, Poland
    22.7
  93. 91KrotoszynGreater Poland, Poland
    22.7
  94. 94PrešovPrešov Region, Slovakia
    22.5
  95. 95OtwockMazovia, Poland
    22.4
  96. 95KaohsiungTakao, Taiwan
    22.4
  97. 97Ciudad NezahualcoyotlMéxico, Mexico
    22.3
  98. 97Jurupa ValleyCalifornia, United States
    22.3
  99. 99KrakówLesser Poland, Poland
    22.2
  100. 100ČadcaŽilina Region, Slovakia
    21.8
  101. 101San Luis de la PazGuanajuato, Mexico
    21.7
  102. 102DębicaSubcarpathia, Poland
    21.6
  103. 103ChaozhouTaiwan, Taiwan
    21.5
  104. 103Mexico CityMexico City, Mexico
    21.5
  105. 105HelenaMontana, United States
    21.0
  106. 106XinyingTaiwan, Taiwan
    20.8
  107. 106ŽilinaŽilina Region, Slovakia
    20.8
  108. 106HanfordCalifornia, United States
    20.8
  109. 109Tuen MunTuen Mun, Hong Kong
    20.7
  110. 109KutnoŁódź Voivodeship, Poland
    20.7
  111. 111LublinLublin, Poland
    20.6
  112. 112NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    20.4
  113. 113BorCentral Serbia, Serbia
    20.2
  114. 113Wan ChaiWan Chai, Hong Kong
    20.2
  115. 113ŁaskŁódź Voivodeship, Poland
    20.2
  116. 113FresnoCalifornia, United States
    20.2
  117. 117DouliuTaiwan, Taiwan
    20.1
  118. 118ErlunTaiwan, Taiwan
    20.0
  119. 118ŁódźŁódź Voivodeship, Poland
    20.0
  120. 120KatowiceSilesia, Poland
    19.9
  121. 121TainanTaiwan, Taiwan
    19.8
  122. 121Grants PassOregon, United States
    19.8
  123. 123MartinŽilina Region, Slovakia
    19.7
  124. 124VarnaVarna, Bulgaria
    19.6
  125. 124ZhushanTaiwan, Taiwan
    19.6
  126. 124OlomoucOlomouc Region, Czechia
    19.6
  127. 127TrebišovKošice Region, Slovakia
    19.5
  128. 127RzeszówSubcarpathia, Poland
    19.5
  129. 127PúchovTrenčín Region, Slovakia
    19.5
  130. 130Kędzierzyn-KoźleOpole Voivodeship, Poland
    19.4
  131. 131ZvolenBanská Bystrica Region, Slovakia
    19.2
  132. 132AcharnésAttica, Greece
    19.0
  133. 133SofiaSofia-Capital, Bulgaria
    18.9
  134. 133TřinecMoravian-Silesian Region, Czechia
    18.9
  135. 135AsprópyrgosAttica, Greece
    18.8
  136. 135RadomMazovia, Poland
    18.8
  137. 135ChicoCalifornia, United States
    18.8
  138. 138AmmanAmman, Jordan
    18.7
  139. 138YongkangTaiwan, Taiwan
    18.7
  140. 138RiversideCalifornia, United States
    18.7
  141. 138OremUtah, United States
    18.7
  142. 142TijuanaBaja California, Mexico
    18.6
  143. 143NiskoSubcarpathia, Poland
    18.1
  144. 143KielceŚwiętokrzyskie, Poland
    18.1
  145. 143Santa Anita - Los FicusLima region, Peru
    18.1
  146. 146OstravaMoravian-Silesian Region, Czechia
    18.0
  147. 146LimaLima Province, Peru
    18.0
  148. 146CelayaGuanajuato, Mexico
    18.0
  149. 146YakimaWashington, United States
    18.0
  150. 150ZamośćLublin, Poland
    17.9
  151. 150KaliszGreater Poland, Poland
    17.9
  152. 150NogalesArizona, United States
    17.9
  153. 153BeigangTaiwan, Taiwan
    17.8
  154. 153CeljeUrban Municipality of Celje, Slovenia
    17.8
  155. 153AbasoloGuanajuato, Mexico
    17.8
  156. 156BéthuneHauts-de-France, France
    17.7
  157. 157AstanaAstana, Kazakhstan
    17.5
  158. 157YuanlinTaiwan, Taiwan
    17.5
  159. 157NantouTaiwan, Taiwan
    17.5
  160. 157PilsenPlzeň Region, Czechia
    17.5
  161. 157BrzegOpole Voivodeship, Poland
    17.5
  162. 157San Francisco De BorjaLima region, Peru
    17.5
  163. 163PiraeusAttica, Greece
    17.4
  164. 163OurenseGalicia, Spain
    17.4
  165. 163VisaliaCalifornia, United States
    17.4
  166. 166ManlleuCatalonia, Spain
    17.3
  167. 166KourouGuyane, French Guiana
    17.3
  168. 168Vranov nad TopľouPrešov Region, Slovakia
    17.2
  169. 168PocatelloIdaho, United States
    17.2
  170. 170PruszkówMazovia, Poland
    17.1
  171. 170TaibaoTaiwan, Taiwan
    17.1
  172. 172WarsawMazovia, Poland
    17.0
  173. 172Hawthornelow-cost sensorsCalifornia, United States
    17.0
  174. 172LewistonIdaho, United States
    17.0
  175. 175ToruńKujawsko-Pomorskie, Poland
    16.9
  176. 175SalamancaGuanajuato, Mexico
    16.9
  177. 177YawataKyoto, Japan
    16.8
  178. 178LiepājaLiepaja, Latvia
    16.7
  179. 178ErlinTaiwan, Taiwan
    16.7
  180. 178CorcoranCalifornia, United States
    16.7
  181. 181WawerMazovia, Poland
    16.6
  182. 181StarachowiceŚwiętokrzyskie, Poland
    16.6
  183. 181TakahashiOkayama, Japan
    16.6
  184. 184BardejovPrešov Region, Slovakia
    16.5
  185. 184SiedlceMazovia, Poland
    16.5
  186. 186HigashinozoeHyōgo, Japan
    16.4
  187. 186KariyaHyōgo, Japan
    16.4
  188. 186Las VegasNevada, United States
    16.4
  189. 186Spanish ForkUtah, United States
    16.4
  190. 190Mong KokYau Tsim Mong District, Hong Kong
    16.3
  191. 190TraunUpper Austria, Austria
    16.3
  192. 190RadomskoŁódź Voivodeship, Poland
    16.3
  193. 190SocorroTexas, United States
    16.3
  194. 194PoznańGreater Poland, Poland
    16.2
  195. 194FontanaCalifornia, United States
    16.2
  196. 194ParklandWashington, United States
    16.2
  197. 194AridaWakayama, Japan
    16.2
  198. 198AntananarivoAnalamanga, Madagascar
    16.1
  199. 198ShidoKagawa, Japan
    16.1
  200. 200LegionowoMazovia, Poland
    16.0

Top 200 of 2,011 shown.

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