SmogRank / History / December 31, 2024

Most polluted cities on December 31, 2024

2,308 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 311.0 µg/m³. Each city's own local calendar day.

← Lahore 311.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 31, 2024, 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. 1Lahorelow-cost sensorsPunjab, Pakistan
    47120.7×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    42519.2×
  3. 3Banja LukaSrpska, Bosnia and Herzegovina
    28413.9×
  4. 4Zagreblow-cost sensorsZagreb, Croatia
    26412.6×
  5. 5DelhiDelhi, India
    25812.2×
  6. 6Dhakalow-cost sensorsDhaka Division, Bangladesh
    25411.9×
  7. 7BihaćFederation of B&H, Bosnia and Herzegovina
    25011.7×
  8. 8SarajevoFederation of B&H, Bosnia and Herzegovina
    23510.7×
  9. 9Islamabadlow-cost sensorsIslamabad, Pakistan
    23410.6×
  10. 10Kampalalow-cost sensorsCentral Region, Uganda
    22910.3×
  11. 11KolkataWest Bengal, India
    2068.7×
  12. 12PristinaPristina, Kosovo
    1796.4×
  13. 13N'DjamenaN’Djaména, Chad
    1796.3×
  14. 14Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1776.2×
  15. 15MumbaiMaharashtra, India
    1745.9×
  16. 16Kathmandulow-cost sensorsBagmati Province, Nepal
    1705.5×
  17. 17DushanbeDushanbe, Tajikistan
    1695.4×
  18. 17PtujUrban Municipality of Ptuj, Slovenia
    1695.4×
  19. 19BadgerAlaska, United States
    1685.3×
  20. 20HyderabadTelangana, India
    1675.2×
  21. 21BaghdadBaghdad, Iraq
    1655.1×
  22. 22CeljeUrban Municipality of Celje, Slovenia
    1655.0×
  23. 23RužomberokŽilina Region, Slovakia
    1655.0×
  24. 24SallanchesAuvergne-Rhône-Alpes, France
    1634.8×
  25. 24KłodzkoLower Silesia, Poland
    1634.8×
  26. 26TrbovljeMunicipality of Trbovlje, Slovenia
    1634.8×
  27. 27ChennaiTamil Nadu, India
    1624.7×
  28. 28LjubljanaLjubljana, Slovenia
    1614.6×
  29. 29IrapuatoGuanajuato, Mexico
    1584.4×
  30. 30OpoleOpole Voivodeship, Poland
    1584.3×
  31. 31Haskovolow-cost sensorsHaskovo, Bulgaria
    1574.3×
  32. 32KigaliKigali, Rwanda
    1574.3×
  33. 33Botevgradlow-cost sensorsSofia, Bulgaria
    1574.3×
  34. 34KielceŚwiętokrzyskie, Poland
    1564.1×
  35. 35Santa Anita - Los FicusLima region, Peru
    1554.1×
  36. 36Stodůlkylow-cost sensorsPrague, Czechia
    1533.9×
  37. 37Almatylow-cost sensorsAlmaty, Kazakhstan
    1533.9×
  38. 38SchiedamSouth Holland, The Netherlands
    1523.8×
  39. 39Liptovský Mikulᚎilina Region, Slovakia
    1513.7×
  40. 40GuangzhouGuangdong, China
    1503.7×
  41. 41Wan ChaiWan Chai, Hong Kong
    1483.6×
  42. 42Tuen MunTuen Mun, Hong Kong
    1473.6×
  43. 43Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1473.6×
  44. 43Jelenia GóraLower Silesia, Poland
    1473.6×
  45. 45AugsburgBavaria, Germany
    1443.5×
  46. 46BakuBaki, Azerbaijan
    1413.5×
  47. 47ThessaloníkiCentral Macedonia, Greece
    1393.4×
  48. 47ČadcaŽilina Region, Slovakia
    1393.4×
  49. 49KranjUrban Municipality of Kranj, Slovenia
    1383.4×
  50. 50TarbesOccitanie, France
    1373.4×
  51. 51ShanghaiShanghai, China
    1373.3×
  52. 52ArlesProvence-Alpes-Côte d'Azur, France
    1363.3×
  53. 53Winterthurlow-cost sensorsZurich, Switzerland
    1353.3×
  54. 54KrakówLesser Poland, Poland
    1353.3×
  55. 55Tin Shui WaiYuen Long, Hong Kong
    1343.3×
  56. 56MartinŽilina Region, Slovakia
    1313.2×
  57. 57Sevlievolow-cost sensorsGabrovo, Bulgaria
    1313.2×
  58. 58MariborUrban Municipality of Maribor, Slovenia
    1303.2×
  59. 59ManlleuCatalonia, Spain
    1293.1×
  60. 60XonacatlánMéxico, Mexico
    1283.1×
  61. 61ComptonCalifornia, United States
    1273.1×
  62. 62San Tung Chung HangIslands, Hong Kong
    1263.0×
  63. 63PhoenixArizona, United States
    1253.0×
  64. 64SalorTashkent Region, Uzbekistan
    1243.0×
  65. 65Tai PoTai Po, Hong Kong
    1243.0×
  66. 66MarignaneProvence-Alpes-Côte d'Azur, France
    1233.0×
  67. 67České BudějoviceSouth Bohemian Region, Czechia
    1222.9×
  68. 68CalexicoCalifornia, United States
    1222.9×
  69. 69ŽilinaŽilina Region, Slovakia
    1202.9×
  70. 69Ciudad NezahualcoyotlMéxico, Mexico
    1202.9×
  71. 71Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    1202.9×
  72. 72WrocławLower Silesia, Poland
    1202.9×
  73. 73Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1192.9×
  74. 74Jurupa ValleyCalifornia, United States
    1182.8×
  75. 75AnaheimCalifornia, United States
    1182.8×
  76. 76NîmesOccitanie, France
    1182.8×
  77. 77Silao de la VictoriaGuanajuato, Mexico
    1172.8×
  78. 78Yerevanlow-cost sensorsYerevan, Armenia
    1172.8×
  79. 79Kędzierzyn-KoźleOpole Voivodeship, Poland
    1172.8×
  80. 80Long BeachCalifornia, United States
    1162.8×
  81. 81DhahranEastern Province, Saudi Arabia
    1152.8×
  82. 82Valašské MeziříčíZlín, Czechia
    1152.7×
  83. 83Kwai ChungKwai Tsing District, Hong Kong
    1152.7×
  84. 83Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    1152.7×
  85. 85Tsuen WanTsuen Wan, Hong Kong
    1152.7×
  86. 86GrazStyria, Austria
    1142.7×
  87. 87GlendaleArizona, United States
    1142.7×
  88. 88GyőrGyőr-Moson-Sopron, Hungary
    1142.7×
  89. 89ReutlingenBaden-Wurttemberg, Germany
    1132.7×
  90. 89Khlong Sam WaBangkok, Thailand
    1132.7×
  91. 91León de los AldamaGuanajuato, Mexico
    1132.7×
  92. 92Accralow-cost sensorsGreater Accra, Ghana
    1132.7×
  93. 92NogalesArizona, United States
    1132.7×
  94. 94PřerovOlomouc Region, Czechia
    1132.7×
  95. 95PécsBaranya, Hungary
    1122.7×
  96. 96Mong KokYau Tsim Mong District, Hong Kong
    1122.7×
  97. 97ZlínZlín, Czechia
    1112.6×
  98. 98AbasoloGuanajuato, Mexico
    1112.6×
  99. 99Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1102.6×
  100. 100AthensAttica, Greece
    1102.6×
  101. 101Carsonlow-cost sensorsCalifornia, United States
    1092.6×
  102. 102ZgierzŁódź Voivodeship, Poland
    1092.6×
  103. 103Istanbullow-cost sensorsIstanbul, Turkey
    1082.6×
  104. 104Sham Shui PoSham Shui Po District, Hong Kong
    1082.6×
  105. 105AguascalientesAguascalientes, Mexico
    1082.6×
  106. 106SalamancaGuanajuato, Mexico
    1072.5×
  107. 107VictoriaCentral and Western, Hong Kong
    1062.5×
  108. 108Nong KhaemBangkok, Thailand
    1062.5×
  109. 108BrnoSouth Moravian, Czechia
    1062.5×
  110. 110Lak SiBangkok, Thailand
    1052.5×
  111. 111PúchovTrenčín Region, Slovakia
    1042.4×
  112. 112Sha TinSha Tin, Hong Kong
    1042.4×
  113. 113FontanaCalifornia, United States
    1032.4×
  114. 114Khan Na YaoBangkok, Thailand
    1032.4×
  115. 115Kempten (Allgäu)Bavaria, Germany
    1032.4×
  116. 115Bueng KumBangkok, Thailand
    1032.4×
  117. 115Saphan SungBangkok, Thailand
    1032.4×
  118. 118Medina Estateslow-cost sensorsGreater Accra, Ghana
    1022.4×
  119. 119Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1022.4×
  120. 120CelayaGuanajuato, Mexico
    1022.4×
  121. 121PátraWest Greece, Greece
    1012.4×
  122. 122OstravaMoravian-Silesian Region, Czechia
    1002.3×
  123. 123Sau Mau PingKwun Tong District, Hong Kong
    992.3×
  124. 124RiversideCalifornia, United States
    992.3×
  125. 125ZvolenBanská Bystrica Region, Slovakia
    992.3×
  126. 125HandlováTrenčín Region, Slovakia
    992.3×
  127. 125Frýdek-MístekMoravian-Silesian Region, Czechia
    992.3×
  128. 128ŻywiecSilesia, Poland
    982.3×
  129. 129Ban Samae DamBangkok, Thailand
    982.3×
  130. 129HavířovMoravian-Silesian Region, Czechia
    982.3×
  131. 129Lomitalow-cost sensorsCalifornia, United States
    982.3×
  132. 132EsztergomKomárom-Esztergom, Hungary
    982.3×
  133. 133BadenLower Austria, Austria
    982.3×
  134. 133MontpellierOccitanie, France
    982.3×
  135. 133FairbanksAlaska, United States
    982.3×
  136. 136Bang NaBangkok, Thailand
    972.3×
  137. 137Bang KapiBangkok, Thailand
    972.2×
  138. 138YangonYangon, Myanmar
    972.2×
  139. 138BerounCentral Bohemia, Czechia
    972.2×
  140. 140JinchengFukien, Taiwan
    962.2×
  141. 141Gabrovolow-cost sensorsGabrovo, Bulgaria
    962.2×
  142. 141FengshanTakao, Taiwan
    962.2×
  143. 141AvignonProvence-Alpes-Côte d'Azur, France
    962.2×
  144. 141AlbertvilleAuvergne-Rhône-Alpes, France
    962.2×
  145. 145VarnaVarna, Bulgaria
    962.2×
  146. 145Mueang NonthaburiNonthaburi, Thailand
    962.2×
  147. 145MunichBavaria, Germany
    962.2×
  148. 145Banská BystricaBanská Bystrica Region, Slovakia
    962.2×
  149. 149Hawthornelow-cost sensorsCalifornia, United States
    962.2×
  150. 149Sai MaiBangkok, Thailand
    962.2×
  151. 151ValenceAuvergne-Rhône-Alpes, France
    952.2×
  152. 151Jastrzębie ZdrójSilesia, Poland
    952.2×
  153. 153ErlunTaiwan, Taiwan
    952.2×
  154. 154San ClementeIca, Peru
    942.2×
  155. 154Jacobo HunterArequipa, Peru
    942.2×
  156. 156BangkokBangkok, Thailand
    942.2×
  157. 156KroměřížZlín, Czechia
    942.2×
  158. 158PerchtoldsdorfLower Austria, Austria
    942.1×
  159. 159ŁaskŁódź Voivodeship, Poland
    942.1×
  160. 160YongkangTaiwan, Taiwan
    942.1×
  161. 160KlosterneuburgLower Austria, Austria
    942.1×
  162. 160VeszprémVeszprém, Hungary
    942.1×
  163. 163OtwockMazovia, Poland
    932.1×
  164. 163Torrancelow-cost sensorsCalifornia, United States
    932.1×
  165. 163Lat KrabangBangkok, Thailand
    932.1×
  166. 166Quezon Citylow-cost sensorsNational Capital Region, Philippines
    932.1×
  167. 167NeiliTaiwan, Taiwan
    932.1×
  168. 168ViennaVienna, Austria
    932.1×
  169. 168Los AngelesCalifornia, United States
    932.1×
  170. 171MesaArizona, United States
    922.1×
  171. 172XinyingTaiwan, Taiwan
    922.1×
  172. 172RacibórzSilesia, Poland
    922.1×
  173. 174TainanTaiwan, Taiwan
    922.1×
  174. 175KaohsiungTakao, Taiwan
    922.1×
  175. 176Nong ChokBangkok, Thailand
    922.1×
  176. 176BurbankCalifornia, United States
    922.1×
  177. 178Klagenfurt am WörtherseeCarinthia, Austria
    912.1×
  178. 179Ban Khlong PrawetBangkok, Thailand
    912.0×
  179. 180LunelOccitanie, France
    912.0×
  180. 181CairoCairo, Egypt
    902.0×
  181. 181MarseilleProvence-Alpes-Côte d'Azur, France
    902.0×
  182. 181LourdesOccitanie, France
    902.0×
  183. 184BeigangTaiwan, Taiwan
    902.0×
  184. 184KoperUrban Municipality of Koper, Slovenia
    902.0×
  185. 186Chiayi CityTaiwan, Taiwan
    902.0×
  186. 186Žiar nad HronomBanská Bystrica Region, Slovakia
    902.0×
  187. 186ZnojmoSouth Moravian, Czechia
    902.0×
  188. 189LublinLublin, Poland
    892.0×
  189. 189SpeyerRheinland-Pfalz, Germany
    892.0×
  190. 189OlomoucOlomouc Region, Czechia
    892.0×
  191. 192Brownsvillelow-cost sensorsTexas, United States
    881.9×
  192. 193ChaozhouTaiwan, Taiwan
    881.9×
  193. 193TübingenBaden-Wurttemberg, Germany
    881.9×
  194. 193FilderstadtBaden-Wurttemberg, Germany
    881.9×
  195. 196PiraeusAttica, Greece
    881.9×
  196. 196Inglewoodlow-cost sensorsCalifornia, United States
    881.9×
  197. 196LiberpolisCounty of Osijek-Baranja, Croatia
    881.9×
  198. 199NacimientoBiobio, Chile
    881.9×
  199. 200Clermont-FerrandAuvergne-Rhône-Alpes, France
    881.9×

Top 200 of 2,308 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

Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, most polluted cities, PM2.5, December 31, 2024, smogrank.com/history/2024-12-31 (accessed 2 Oct 2026).

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