SmogRank / History / January 2, 2025

Most polluted cities on January 2, 2025

2,209 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 362.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 2, 2025. All episodes.

← Lahore 362.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for January 2, 2025, 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
    500+24.1×
  2. 2DelhiDelhi, India
    27413.3×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    27313.2×
  4. 4SarajevoFederation of B&H, Bosnia and Herzegovina
    26512.7×
  5. 5KolkataWest Bengal, India
    23610.7×
  6. 6N'DjamenaN’Djaména, Chad
    2239.9×
  7. 7Kampalalow-cost sensorsCentral Region, Uganda
    2159.3×
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    1988.1×
  9. 9PristinaPristina, Kosovo
    1897.3×
  10. 10Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1766.1×
  11. 11Kathmandulow-cost sensorsBagmati Province, Nepal
    1756.0×
  12. 12SalorTashkent Region, Uzbekistan
    1715.6×
  13. 13MumbaiMaharashtra, India
    1705.5×
  14. 15HyderabadTelangana, India
    1634.8×
  15. 16ChennaiTamil Nadu, India
    1594.5×
  16. 17KigaliKigali, Rwanda
    1564.1×
  17. 18Wan ChaiWan Chai, Hong Kong
    1554.1×
  18. 19KoperUrban Municipality of Koper, Slovenia
    1554.0×
  19. 20Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    1493.7×
  20. 21GuangzhouGuangdong, China
    1493.7×
  21. 22DushanbeDushanbe, Tajikistan
    1463.6×
  22. 23BadgerAlaska, United States
    1433.5×
  23. 24JeddahMecca Region, Saudi Arabia
    1393.4×
  24. 25Botevgradlow-cost sensorsSofia, Bulgaria
    1383.4×
  25. 26CodleaBrașov County, Romania
    1373.3×
  26. 27Haskovolow-cost sensorsHaskovo, Bulgaria
    1353.3×
  27. 28CraiovaDolj, Romania
    1353.3×
  28. 29ManlleuCatalonia, Spain
    1343.3×
  29. 30ThessaloníkiCentral Macedonia, Greece
    1343.3×
  30. 31Tuen MunTuen Mun, Hong Kong
    1333.2×
  31. 32AthensAttica, Greece
    1313.2×
  32. 33LinzUpper Austria, Austria
    1293.1×
  33. 34RužomberokŽilina Region, Slovakia
    1293.1×
  34. 35Sau Mau PingKwun Tong District, Hong Kong
    1263.0×
  35. 36VictoriaCentral and Western, Hong Kong
    1253.0×
  36. 37Tsuen WanTsuen Wan, Hong Kong
    1233.0×
  37. 37Sham Shui PoSham Shui Po District, Hong Kong
    1233.0×
  38. 39Khlong Sam WaBangkok, Thailand
    1222.9×
  39. 40San Tung Chung HangIslands, Hong Kong
    1202.9×
  40. 41MartinŽilina Region, Slovakia
    1202.9×
  41. 42Tai PoTai Po, Hong Kong
    1192.9×
  42. 43Santa Anita - Los FicusLima region, Peru
    1192.9×
  43. 44Tin Shui WaiYuen Long, Hong Kong
    1172.8×
  44. 45Khan Na YaoBangkok, Thailand
    1172.8×
  45. 46Nong KhaemBangkok, Thailand
    1132.7×
  46. 47Santa CatarinaNuevo León, Mexico
    1132.7×
  47. 48Saphan SungBangkok, Thailand
    1122.7×
  48. 49Lak SiBangkok, Thailand
    1122.7×
  49. 50Bueng KumBangkok, Thailand
    1122.7×
  50. 51Sevlievolow-cost sensorsGabrovo, Bulgaria
    1122.7×
  51. 51LiberpolisCounty of Osijek-Baranja, Croatia
    1122.7×
  52. 53TijuanaBaja California, Mexico
    1102.6×
  53. 54Bang KapiBangkok, Thailand
    1102.6×
  54. 54Sha TinSha Tin, Hong Kong
    1102.6×
  55. 54Lat KrabangBangkok, Thailand
    1102.6×
  56. 57TraunUpper Austria, Austria
    1082.6×
  57. 58Bang NaBangkok, Thailand
    1082.6×
  58. 58FanlingNorth District, Hong Kong
    1082.6×
  59. 60Nong ChokBangkok, Thailand
    1082.5×
  60. 60Klagenfurt am WörtherseeCarinthia, Austria
    1082.5×
  61. 62Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1062.5×
  62. 63Ban Samae DamBangkok, Thailand
    1062.5×
  63. 64Istanbullow-cost sensorsIstanbul, Turkey
    1042.5×
  64. 65BangkokBangkok, Thailand
    1032.4×
  65. 66Mueang NonthaburiNonthaburi, Thailand
    1032.4×
  66. 67FairbanksAlaska, United States
    1032.4×
  67. 68MonterreyNuevo León, Mexico
    1022.4×
  68. 69CairoCairo, Egypt
    1012.4×
  69. 70Ban Khlong PrawetBangkok, Thailand
    1002.4×
  70. 71Accralow-cost sensorsGreater Accra, Ghana
    992.3×
  71. 71Banská BystricaBanská Bystrica Region, Slovakia
    992.3×
  72. 71Sai MaiBangkok, Thailand
    992.3×
  73. 74YangonYangon, Myanmar
    992.3×
  74. 75Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    982.3×
  75. 76Ciudad Benito JuárezNuevo León, Mexico
    982.3×
  76. 77FresnoCalifornia, United States
    962.2×
  77. 78PonferradaCastille and León, Spain
    962.2×
  78. 79Jurupa ValleyCalifornia, United States
    962.2×
  79. 80PubalGyeonggi-do, South Korea
    962.2×
  80. 80AnaheimCalifornia, United States
    962.2×
  81. 82AlgiersAlgiers, Algeria
    952.2×
  82. 83Zagreblow-cost sensorsZagreb, Croatia
    952.2×
  83. 84GrazStyria, Austria
    952.2×
  84. 85GyőrGyőr-Moson-Sopron, Hungary
    942.2×
  85. 86GumiGyeongsangbuk-do, South Korea
    942.2×
  86. 87ComptonCalifornia, United States
    942.1×
  87. 88AcharnésAttica, Greece
    942.1×
  88. 89PátraWest Greece, Greece
    932.1×
  89. 90JungpyongNorth Chungcheong, South Korea
    932.1×
  90. 90ChungjuNorth Chungcheong, South Korea
    932.1×
  91. 92Yerevanlow-cost sensorsYerevan, Armenia
    922.1×
  92. 92YeongjuGyeongsangbuk-do, South Korea
    922.1×
  93. 94KinzanChungcheongnam-do, South Korea
    912.0×
  94. 95YeongdongNorth Chungcheong, South Korea
    912.0×
  95. 95Medina Estateslow-cost sensorsGreater Accra, Ghana
    912.0×
  96. 97JinchengFukien, Taiwan
    912.0×
  97. 98YeojuGyeonggi-do, South Korea
    902.0×
  98. 98KimjeJeollabuk-do, South Korea
    902.0×
  99. 98KranjUrban Municipality of Kranj, Slovenia
    902.0×
  100. 101BadenLower Austria, Austria
    902.0×
  101. 102Ciudad NezahualcoyotlMéxico, Mexico
    902.0×
  102. 102ChiguayanteBiobio, Chile
    902.0×
  103. 102Long BeachCalifornia, United States
    902.0×
  104. 105Liptovský Mikulᚎilina Region, Slovakia
    892.0×
  105. 106PyeongtaekGyeonggi-do, South Korea
    892.0×
  106. 107ZnojmoSouth Moravian, Czechia
    892.0×
  107. 108WŏnjuGangwon-do, South Korea
    892.0×
  108. 109VisaliaCalifornia, United States
    881.9×
  109. 110DejCluj County, Romania
    881.9×
  110. 110AnsfeldenUpper Austria, Austria
    881.9×
  111. 112SeonghwanChungcheongnam-do, South Korea
    881.9×
  112. 112Icheon-siGyeonggi-do, South Korea
    881.9×
  113. 112Cheongju-siNorth Chungcheong, South Korea
    881.9×
  114. 112Carsonlow-cost sensorsCalifornia, United States
    881.9×
  115. 116KoesanNorth Chungcheong, South Korea
    871.9×
  116. 116Jardines de la SillaNuevo León, Mexico
    871.9×
  117. 118PrievidzaTrenčín Region, Slovakia
    871.9×
  118. 118SejongSejong-si, South Korea
    871.9×
  119. 120WelsUpper Austria, Austria
    861.9×
  120. 121IngolstadtBavaria, Germany
    861.9×
  121. 122BuanJeollabuk-do, South Korea
    861.9×
  122. 122TongyeongGyeongsangnam-do, South Korea
    861.9×
  123. 122PerchtoldsdorfLower Austria, Austria
    861.9×
  124. 122VeszprémVeszprém, Hungary
    861.9×
  125. 126AnseongGyeonggi-do, South Korea
    861.9×
  126. 126Naucalpan de JuárezMéxico, Mexico
    861.9×
  127. 128ColomboWestern Province, Sri Lanka
    851.8×
  128. 129BakersfieldCalifornia, United States
    851.8×
  129. 130Hawthornelow-cost sensorsCalifornia, United States
    851.8×
  130. 131Hongch’ŏnGangwon-do, South Korea
    841.8×
  131. 131YŏnmuChungcheongnam-do, South Korea
    841.8×
  132. 131PécsBaranya, Hungary
    841.8×
  133. 134BellinzonaTicino, Switzerland
    841.8×
  134. 134ViennaVienna, Austria
    841.8×
  135. 136AmmanAmman, Jordan
    841.8×
  136. 136Gabrovolow-cost sensorsGabrovo, Bulgaria
    841.8×
  137. 138NacimientoBiobio, Chile
    831.8×
  138. 138Jacobo HunterArequipa, Peru
    831.8×
  139. 140SangjuGyeongsangbuk-do, South Korea
    831.8×
  140. 140GimcheonGyeongsangbuk-do, South Korea
    831.8×
  141. 140CheonanChungcheongnam-do, South Korea
    831.8×
  142. 140Chinch'ŏnNorth Chungcheong, South Korea
    831.8×
  143. 144Žiar nad HronomBanská Bystrica Region, Slovakia
    831.7×
  144. 145OurenseGalicia, Spain
    831.7×
  145. 146Yangp'yŏngGyeonggi-do, South Korea
    821.7×
  146. 147IksanJeollabuk-do, South Korea
    821.7×
  147. 148BakuBaki, Azerbaijan
    821.7×
  148. 148OlomoucOlomouc Region, Czechia
    821.7×
  149. 150PartizánskeTrenčín Region, Slovakia
    821.7×
  150. 150BrnoSouth Moravian, Czechia
    821.7×
  151. 152Jeju CityJeju-do, South Korea
    811.7×
  152. 153ChangsuJeollabuk-do, South Korea
    811.7×
  153. 153NogalesArizona, United States
    811.7×
  154. 155AsanChungcheongnam-do, South Korea
    811.7×
  155. 155Molina de SeguraMurcia, Spain
    811.7×
  156. 155PhoenixArizona, United States
    811.7×
  157. 158PohangGyeongsangbuk-do, South Korea
    811.7×
  158. 158PúchovTrenčín Region, Slovakia
    811.7×
  159. 160KlosterneuburgLower Austria, Austria
    801.7×
  160. 161PřerovOlomouc Region, Czechia
    801.6×
  161. 161Mexico CityMexico City, Mexico
    801.6×
  162. 163PiraeusAttica, Greece
    801.6×
  163. 163HandlováTrenčín Region, Slovakia
    801.6×
  164. 165HayangGyeongsangbuk-do, South Korea
    801.6×
  165. 165MödlingLower Austria, Austria
    801.6×
  166. 165Torrancelow-cost sensorsCalifornia, United States
    801.6×
  167. 168NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    801.6×
  168. 168LillehammerInnlandet, Norway
    801.6×
  169. 168IrapuatoGuanajuato, Mexico
    801.6×
  170. 171HanfordCalifornia, United States
    791.6×
  171. 172YesanChungcheongnam-do, South Korea
    791.6×
  172. 172QuinteroValparaiso, Chile
    791.6×
  173. 174NeietsuGangwon-do, South Korea
    791.6×
  174. 175OkcheonNorth Chungcheong, South Korea
    781.6×
  175. 175GoseongGyeongsangnam-do, South Korea
    781.6×
  176. 175ZvolenBanská Bystrica Region, Slovakia
    781.6×
  177. 175ŽilinaŽilina Region, Slovakia
    781.6×
  178. 179NangenJeollabuk-do, South Korea
    781.6×
  179. 179KłodzkoLower Silesia, Poland
    781.6×
  180. 181AsprópyrgosAttica, Greece
    781.6×
  181. 181NamsaJeollabuk-do, South Korea
    781.6×
  182. 181GaigeturiJeju-do, South Korea
    781.6×
  183. 181Alcalá de GuadairaAndalusia, Spain
    781.6×
  184. 181PezinokBratislava Region, Slovakia
    781.6×
  185. 181Silao de la VictoriaGuanajuato, Mexico
    781.6×
  186. 187AndongGyeongsangbuk-do, South Korea
    781.6×
  187. 188Almatylow-cost sensorsAlmaty, Kazakhstan
    771.6×
  188. 189MungyeongGyeongsangbuk-do, South Korea
    771.5×
  189. 189NogalesSonora, Mexico
    771.5×
  190. 189Sorel-TracyQuebec, Canada
    771.5×
  191. 192SarpsborgØstfold, Norway
    771.5×
  192. 193FengshanTakao, Taiwan
    771.5×
  193. 193YeonilGyeongsangbuk-do, South Korea
    771.5×
  194. 193ShenyangLiaoning, China
    771.5×
  195. 196KaohsiungTakao, Taiwan
    771.5×
  196. 196San DiegoCalifornia, United States
    771.5×
  197. 198ShanghaiShanghai, China
    761.5×
  198. 198BuyeoChungcheongnam-do, South Korea
    761.5×
  199. 198DunaújvárosFejér, Hungary
    761.5×

Top 200 of 2,209 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, January 2, 2025, smogrank.com/history/2025-01-02 (accessed 2 Oct 2026).

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