SmogRank / History / December 2024

Most polluted cities, December 2024

2,078 cities ranked by their average PM2.5 over the 31 days; the worst was Lahore, Pakistan, at 231.9 µg/m³. A city needs measurements on 70% of the days to be ranked.

  1. 1Lahorelow-cost sensorsPunjab, Pakistan
    231.9
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    190.5
  3. 3Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    190.0
  4. 4DelhiDelhi, India
    175.2
  5. 5KolkataWest Bengal, India
    152.1
  6. 6DushanbeDushanbe, Tajikistan
    121.8
  7. 7Ulan BatorUlaanbaatar, Mongolia
    119.5
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    115.4
  9. 9N'DjamenaN’Djaména, Chad
    114.8
  10. 10Kampalalow-cost sensorsCentral Region, Uganda
    107.7
  11. 11Kathmandulow-cost sensorsBagmati Province, Nepal
    90.0
  12. 12MumbaiMaharashtra, India
    87.0
  13. 13BaghdadBaghdad, Iraq
    86.6
  14. 14Banja LukaSrpska, Bosnia and Herzegovina
    79.7
  15. 15Novi PazarCentral Serbia, Serbia
    78.6
  16. 16SalorTashkent Region, Uzbekistan
    70.2
  17. 17CairoCairo, Egypt
    66.9
  18. 18SarajevoFederation of B&H, Bosnia and Herzegovina
    65.2
  19. 19Yerevanlow-cost sensorsYerevan, Armenia
    64.3
  20. 20ValjevoCentral Serbia, Serbia
    59.8
  21. 21Zagreblow-cost sensorsZagreb, Croatia
    54.5
  22. 22Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    53.9
  23. 23Almatylow-cost sensorsAlmaty, Kazakhstan
    50.6
  24. 24UžiceCentral Serbia, Serbia
    49.4
  25. 25BihaćFederation of B&H, Bosnia and Herzegovina
    49.1
  26. 26ShanghaiShanghai, China
    46.9
  27. 27Şabāḩ as SālimMubārak al Kabīr, Kuwait
    44.8
  28. 28NegotinCentral Serbia, Serbia
    44.7
  29. 29LazarevacCentral Serbia, Serbia
    44.4
  30. 30OpoleOpole Voivodeship, Poland
    43.8
  31. 31GuangzhouGuangdong, China
    43.7
  32. 32Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    42.7
  33. 33ChennaiTamil Nadu, India
    42.6
  34. 33Accralow-cost sensorsGreater Accra, Ghana
    42.6
  35. 35DejCluj County, Romania
    41.7
  36. 36Bangkoklow-cost sensorsBangkok, Thailand
    40.1
  37. 37SmederevoCentral Serbia, Serbia
    39.8
  38. 38NišCentral Serbia, Serbia
    39.7
  39. 39PančevoVojvodina, Serbia
    39.1
  40. 39Tuen MunTuen Mun, Hong Kong
    39.1
  41. 41Dubailow-cost sensorsDubai, United Arab Emirates
    38.8
  42. 42ZemunCentral Serbia, Serbia
    38.7
  43. 43ŻywiecSilesia, Poland
    38.1
  44. 43Santa Anita - Los FicusLima region, Peru
    38.1
  45. 45KragujevacCentral Serbia, Serbia
    37.9
  46. 45Medina Estateslow-cost sensorsGreater Accra, Ghana
    37.9
  47. 47ObrenovacCentral Serbia, Serbia
    37.5
  48. 47RacibórzSilesia, Poland
    37.5
  49. 49Chiang Mailow-cost sensorsChiang Mai, Thailand
    37.4
  50. 49Wan ChaiWan Chai, Hong Kong
    37.4
  51. 51KigaliKigali, Rwanda
    37.0
  52. 52AntananarivoAnalamanga, Madagascar
    35.5
  53. 53Tin Shui WaiYuen Long, Hong Kong
    34.6
  54. 54San Tung Chung HangIslands, Hong Kong
    34.2
  55. 54Jastrzębie ZdrójSilesia, Poland
    34.2
  56. 56Bielsko-BialaSilesia, Poland
    34.0
  57. 57Skarżysko-KamiennaŚwiętokrzyskie, Poland
    33.7
  58. 58Tha BoNong Khai, Thailand
    33.6
  59. 59Kędzierzyn-KoźleOpole Voivodeship, Poland
    33.5
  60. 60SallanchesAuvergne-Rhône-Alpes, France
    33.1
  61. 61OtwockMazovia, Poland
    32.6
  62. 62KłodzkoLower Silesia, Poland
    32.5
  63. 63BelgradeCentral Serbia, Serbia
    32.3
  64. 63OstravaMoravian-Silesian Region, Czechia
    32.3
  65. 63CeljeUrban Municipality of Celje, Slovenia
    32.3
  66. 66Czechowice-DziedziceSilesia, Poland
    32.1
  67. 67CodleaBrașov County, Romania
    32.0
  68. 67ManlleuCatalonia, Spain
    32.0
  69. 69YangonYangon, Myanmar
    31.8
  70. 70ZgierzŁódź Voivodeship, Poland
    31.6
  71. 71Tai PoTai Po, Hong Kong
    31.5
  72. 72SremčicaCentral Serbia, Serbia
    31.2
  73. 73ShenyangLiaoning, China
    31.1
  74. 74Mong KokYau Tsim Mong District, Hong Kong
    30.7
  75. 75Kwai ChungKwai Tsing District, Hong Kong
    30.3
  76. 76FutogVojvodina, Serbia
    30.0
  77. 77ChaozhouTaiwan, Taiwan
    29.8
  78. 78HavířovMoravian-Silesian Region, Czechia
    29.7
  79. 79Istanbullow-cost sensorsIstanbul, Turkey
    29.2
  80. 79Tsuen WanTsuen Wan, Hong Kong
    29.2
  81. 79KatowiceSilesia, Poland
    29.2
  82. 82BakersfieldCalifornia, United States
    29.0
  83. 83BohumínMoravian-Silesian Region, Czechia
    28.9
  84. 83ŁaskŁódź Voivodeship, Poland
    28.9
  85. 85VictoriaCentral and Western, Hong Kong
    28.6
  86. 85LjubljanaLjubljana, Slovenia
    28.6
  87. 85Jacobo HunterArequipa, Peru
    28.6
  88. 88LučenecBanská Bystrica Region, Slovakia
    28.5
  89. 89Sham Shui PoSham Shui Po District, Hong Kong
    28.4
  90. 90FengshanTakao, Taiwan
    28.3
  91. 91AshgabatAshgabat, Turkmenistan
    28.2
  92. 91KaliszGreater Poland, Poland
    28.2
  93. 93ColomboWestern Province, Sri Lanka
    28.1
  94. 94KranjUrban Municipality of Kranj, Slovenia
    28.0
  95. 95Silao de la VictoriaGuanajuato, Mexico
    27.7
  96. 95IrapuatoGuanajuato, Mexico
    27.7
  97. 97Sha TinSha Tin, Hong Kong
    27.5
  98. 97PtujUrban Municipality of Ptuj, Slovenia
    27.5
  99. 99KaohsiungTakao, Taiwan
    27.4
  100. 99Frýdek-MístekMoravian-Silesian Region, Czechia
    27.4
  101. 101BakuBaki, Azerbaijan
    27.3
  102. 102KielceŚwiętokrzyskie, Poland
    27.1
  103. 102Sau Mau PingKwun Tong District, Hong Kong
    27.1
  104. 104TrbovljeMunicipality of Trbovlje, Slovenia
    27.0
  105. 105KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    26.7
  106. 105JinchengFukien, Taiwan
    26.7
  107. 107MiskolcBorsod-Abaúj-Zemplén, Hungary
    26.3
  108. 107Botevgradlow-cost sensorsSofia, Bulgaria
    26.3
  109. 107Jurupa ValleyCalifornia, United States
    26.3
  110. 110FresnoCalifornia, United States
    26.2
  111. 111StarachowiceŚwiętokrzyskie, Poland
    25.8
  112. 112AberdeenSouthern District, Hong Kong
    25.6
  113. 113DziałdowoWarmia-Masuria, Poland
    25.3
  114. 114ThessaloníkiCentral Macedonia, Greece
    25.2
  115. 114KrakówLesser Poland, Poland
    25.2
  116. 116HanfordCalifornia, United States
    25.1
  117. 117RadomMazovia, Poland
    24.9
  118. 117KutnoŁódź Voivodeship, Poland
    24.9
  119. 119Novo MestoUrban Municipality of Novo Mesto, Slovenia
    24.7
  120. 120Jelenia GóraLower Silesia, Poland
    24.6
  121. 121RužomberokŽilina Region, Slovakia
    24.2
  122. 121BadgerAlaska, United States
    24.2
  123. 123WłocławekKujawsko-Pomorskie, Poland
    24.1
  124. 124JeddahMecca Region, Saudi Arabia
    24.0
  125. 124BeijingBeijing, China
    24.0
  126. 126GyőrGyőr-Moson-Sopron, Hungary
    23.9
  127. 126WrocławLower Silesia, Poland
    23.9
  128. 128NiskoSubcarpathia, Poland
    23.8
  129. 129Valašské MeziříčíZlín, Czechia
    23.7
  130. 130LublinLublin, Poland
    23.6
  131. 130DębicaSubcarpathia, Poland
    23.6
  132. 130TijuanaBaja California, Mexico
    23.6
  133. 133ComptonCalifornia, United States
    23.5
  134. 134XinyingTaiwan, Taiwan
    23.2
  135. 134PřerovOlomouc Region, Czechia
    23.2
  136. 134RadomskoŁódź Voivodeship, Poland
    23.2
  137. 134NogalesArizona, United States
    23.2
  138. 134ClovisCalifornia, United States
    23.2
  139. 139GrazStyria, Austria
    23.1
  140. 139Novi SadVojvodina, Serbia
    23.1
  141. 139León de los AldamaGuanajuato, Mexico
    23.1
  142. 142Cluj-NapocaCluj County, Romania
    23.0
  143. 142NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    23.0
  144. 144EsztergomKomárom-Esztergom, Hungary
    22.9
  145. 145AugustówPodlasie, Poland
    22.6
  146. 145PortervilleCalifornia, United States
    22.6
  147. 147Sevlievolow-cost sensorsGabrovo, Bulgaria
    22.5
  148. 147PúchovTrenčín Region, Slovakia
    22.5
  149. 149Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    22.3
  150. 149Chiayi CityTaiwan, Taiwan
    22.3
  151. 149LimaLima Province, Peru
    22.3
  152. 152DouliuTaiwan, Taiwan
    22.2
  153. 153PrzemyślSubcarpathia, Poland
    22.1
  154. 153TainanTaiwan, Taiwan
    22.1
  155. 155ZlínZlín, Czechia
    22.0
  156. 155TřinecMoravian-Silesian Region, Czechia
    22.0
  157. 155PhoenixArizona, United States
    22.0
  158. 158Addis AbabaAddis Ababa, Ethiopia
    21.9
  159. 158YongkangTaiwan, Taiwan
    21.9
  160. 158ZvolenBanská Bystrica Region, Slovakia
    21.9
  161. 158Mexico CityMexico City, Mexico
    21.9
  162. 162ŻyrardówMazovia, Poland
    21.8
  163. 162ŽilinaŽilina Region, Slovakia
    21.8
  164. 162PezinokBratislava Region, Slovakia
    21.8
  165. 162Český TěšínMoravian-Silesian Region, Czechia
    21.8
  166. 162OurenseGalicia, Spain
    21.8
  167. 167ŁódźŁódź Voivodeship, Poland
    21.7
  168. 167Florinlow-cost sensorsCalifornia, United States
    21.7
  169. 169PiscoIca, Peru
    21.6
  170. 169BurbankCalifornia, United States
    21.6
  171. 171Hawthornelow-cost sensorsCalifornia, United States
    21.5
  172. 172ZhushanTaiwan, Taiwan
    21.4
  173. 172RiversideCalifornia, United States
    21.4
  174. 174Los AngelesCalifornia, United States
    21.3
  175. 175PruszkówMazovia, Poland
    21.2
  176. 176WawerMazovia, Poland
    21.1
  177. 176OpavaMoravian-Silesian Region, Czechia
    21.1
  178. 176MaderaCalifornia, United States
    21.1
  179. 179Haskovolow-cost sensorsHaskovo, Bulgaria
    21.0
  180. 179ČadcaŽilina Region, Slovakia
    21.0
  181. 181MielecSubcarpathia, Poland
    20.9
  182. 182ErlunTaiwan, Taiwan
    20.8
  183. 183MurciaMurcia, Spain
    20.7
  184. 183OlomoucOlomouc Region, Czechia
    20.7
  185. 183TurlockCalifornia, United States
    20.7
  186. 186AmmanAmman, Jordan
    20.6
  187. 186RzeszówSubcarpathia, Poland
    20.6
  188. 186CorcoranCalifornia, United States
    20.6
  189. 189SzegedCsongrád, Hungary
    20.5
  190. 189Winterthurlow-cost sensorsZurich, Switzerland
    20.5
  191. 189NáchodHradec Králové Region, Czechia
    20.5
  192. 189LleidaCatalonia, Spain
    20.5
  193. 189FontanaCalifornia, United States
    20.5
  194. 194Liptovský Mikulᚎilina Region, Slovakia
    20.4
  195. 195PécsBaranya, Hungary
    20.3
  196. 196MercedCalifornia, United States
    20.2
  197. 197PoznańGreater Poland, Poland
    20.1
  198. 197AnaheimCalifornia, United States
    20.1
  199. 197LiberpolisCounty of Osijek-Baranja, Croatia
    20.1
  200. 200PuliTaiwan, Taiwan
    20.0

Top 200 of 2,078 shown.

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