SmogRank / History / January 17, 2025

Most polluted cities on January 17, 2025

2,037 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 216.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 17, 2025. All episodes.

← Lahore 216.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 17, 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
    29114.4×
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    26112.4×
  3. 3KolkataWest Bengal, India
    24611.4×
  4. 4N'DjamenaN’Djaména, Chad
    22710.1×
  5. 5Ulan BatorUlaanbaatar, Mongolia
    2249.9×
  6. 6DelhiDelhi, India
    2229.8×
  7. 7Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    2068.7×
  8. 8Islamabadlow-cost sensorsIslamabad, Pakistan
    1978.1×
  9. 9Kampalalow-cost sensorsCentral Region, Uganda
    1927.6×
  10. 10DushanbeDushanbe, Tajikistan
    1907.4×
  11. 11HyderabadTelangana, India
    1816.5×
  12. 12MumbaiMaharashtra, India
    1816.5×
  13. 13Abujalow-cost sensorsFCT, Nigeria
    1786.3×
  14. 14HanoiHanoi, Vietnam
    1766.1×
  15. 15ChennaiTamil Nadu, India
    1735.7×
  16. 16Kathmandulow-cost sensorsBagmati Province, Nepal
    1725.7×
  17. 17SarajevoFederation of B&H, Bosnia and Herzegovina
    1705.5×
  18. 18Karachilow-cost sensorsSindh, Pakistan
    1685.3×
  19. 19SalorTashkent Region, Uzbekistan
    1675.2×
  20. 20DhahranEastern Province, Saudi Arabia
    1634.8×
  21. 21Almatylow-cost sensorsAlmaty, Kazakhstan
    1564.1×
  22. 22KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1533.9×
  23. 23ShanghaiShanghai, China
    1523.8×
  24. 24MiskolcBorsod-Abaúj-Zemplén, Hungary
    1513.7×
  25. 26ConakryConakry, Guinea
    1493.7×
  26. 27BaghdadBaghdad, Iraq
    1483.6×
  27. 27Botevgradlow-cost sensorsSofia, Bulgaria
    1483.6×
  28. 29LazarevacCentral Serbia, Serbia
    1423.5×
  29. 30LubańLower Silesia, Poland
    1423.5×
  30. 31Banja LukaSrpska, Bosnia and Herzegovina
    1413.4×
  31. 32Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1393.4×
  32. 33Haskovolow-cost sensorsHaskovo, Bulgaria
    1353.3×
  33. 34KošiceKošice Region, Slovakia
    1333.2×
  34. 35PezinokBratislava Region, Slovakia
    1313.2×
  35. 36TrebišovKošice Region, Slovakia
    1303.1×
  36. 37PubalGyeonggi-do, South Korea
    1273.1×
  37. 37ŻywiecSilesia, Poland
    1273.1×
  38. 39NitraNitra Region, Slovakia
    1253.0×
  39. 39Bielsko-BialaSilesia, Poland
    1253.0×
  40. 41SremčicaCentral Serbia, Serbia
    1253.0×
  41. 42Vranov nad TopľouPrešov Region, Slovakia
    1233.0×
  42. 43BardejovPrešov Region, Slovakia
    1202.9×
  43. 44PrešovPrešov Region, Slovakia
    1182.8×
  44. 45NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    1172.8×
  45. 46KinzanChungcheongnam-do, South Korea
    1172.8×
  46. 47SeonghwanChungcheongnam-do, South Korea
    1162.8×
  47. 48HumennéPrešov Region, Slovakia
    1152.8×
  48. 49YangonYangon, Myanmar
    1152.7×
  49. 50LučenecBanská Bystrica Region, Slovakia
    1142.7×
  50. 51KrotoszynGreater Poland, Poland
    1132.7×
  51. 52Wan ChaiWan Chai, Hong Kong
    1132.7×
  52. 53Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1122.7×
  53. 54AnseongGyeonggi-do, South Korea
    1122.7×
  54. 55BeijingBeijing, China
    1112.6×
  55. 56OpoleOpole Voivodeship, Poland
    1102.6×
  56. 57Chinch'ŏnNorth Chungcheong, South Korea
    1102.6×
  57. 58EsztergomKomárom-Esztergom, Hungary
    1102.6×
  58. 59YeongdongNorth Chungcheong, South Korea
    1092.6×
  59. 60ShenyangLiaoning, China
    1092.6×
  60. 61Yangp'yŏngGyeonggi-do, South Korea
    1092.6×
  61. 62YeongjuGyeongsangbuk-do, South Korea
    1082.6×
  62. 63JungpyongNorth Chungcheong, South Korea
    1082.6×
  63. 64ZemunCentral Serbia, Serbia
    1082.5×
  64. 64YeojuGyeonggi-do, South Korea
    1082.5×
  65. 64HwadoGyeonggi-do, South Korea
    1082.5×
  66. 64Accralow-cost sensorsGreater Accra, Ghana
    1082.5×
  67. 68BelgradeCentral Serbia, Serbia
    1072.5×
  68. 69Sevlievolow-cost sensorsGabrovo, Bulgaria
    1072.5×
  69. 70KutnoŁódź Voivodeship, Poland
    1072.5×
  70. 71OkcheonNorth Chungcheong, South Korea
    1072.5×
  71. 71Icheon-siGyeonggi-do, South Korea
    1072.5×
  72. 71Cheongju-siNorth Chungcheong, South Korea
    1072.5×
  73. 74TrnavaTrnava Region, Slovakia
    1062.5×
  74. 75SejongSejong-si, South Korea
    1062.5×
  75. 76GumiGyeongsangbuk-do, South Korea
    1062.5×
  76. 77Yerevanlow-cost sensorsYerevan, Armenia
    1052.5×
  77. 77KoesanNorth Chungcheong, South Korea
    1052.5×
  78. 79Istanbullow-cost sensorsIstanbul, Turkey
    1052.5×
  79. 80Ecatepec de MorelosMéxico, Mexico
    1052.5×
  80. 81ColomboWestern Province, Sri Lanka
    1042.5×
  81. 81ChungjuNorth Chungcheong, South Korea
    1042.5×
  82. 83ObrenovacCentral Serbia, Serbia
    1042.5×
  83. 84BakuBaki, Azerbaijan
    1032.4×
  84. 84Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1032.4×
  85. 86BratislavaBratislava Region, Slovakia
    1022.4×
  86. 87PančevoVojvodina, Serbia
    1022.4×
  87. 88Mong KokYau Tsim Mong District, Hong Kong
    1012.4×
  88. 89Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    992.3×
  89. 90JeddahMecca Region, Saudi Arabia
    992.3×
  90. 90GrenobleAuvergne-Rhône-Alpes, France
    992.3×
  91. 92PyeongtaekGyeonggi-do, South Korea
    992.3×
  92. 92MoulinsAuvergne-Rhône-Alpes, France
    992.3×
  93. 94YeonilGyeongsangbuk-do, South Korea
    992.3×
  94. 95AsanChungcheongnam-do, South Korea
    992.3×
  95. 96YangjuGyeonggi-do, South Korea
    982.3×
  96. 96NonsanChungcheongnam-do, South Korea
    982.3×
  97. 98Gabrovolow-cost sensorsGabrovo, Bulgaria
    982.3×
  98. 98Tuen MunTuen Mun, Hong Kong
    982.3×
  99. 98GwangjuGyeonggi-do, South Korea
    982.3×
  100. 101Guri-siGyeonggi-do, South Korea
    982.3×
  101. 102SenecBratislava Region, Slovakia
    972.3×
  102. 103OtwockMazovia, Poland
    972.2×
  103. 103OsanGyeonggi-do, South Korea
    972.2×
  104. 105GuangzhouGuangdong, China
    962.2×
  105. 106WŏnjuGangwon-do, South Korea
    962.2×
  106. 107MeylanAuvergne-Rhône-Alpes, France
    952.2×
  107. 108ChuncheonGangwon-do, South Korea
    952.2×
  108. 108SereďTrnava Region, Slovakia
    952.2×
  109. 110SuwonGyeonggi-do, South Korea
    952.2×
  110. 111ArlesProvence-Alpes-Côte d'Azur, France
    952.2×
  111. 112CairoCairo, Egypt
    942.2×
  112. 112Seongnam-siGyeonggi-do, South Korea
    942.2×
  113. 112Khlong Sam WaBangkok, Thailand
    942.2×
  114. 115VictoriaCentral and Western, Hong Kong
    942.1×
  115. 115Jelenia GóraLower Silesia, Poland
    942.1×
  116. 117Kwai ChungKwai Tsing District, Hong Kong
    932.1×
  117. 117SeoulSeoul, South Korea
    932.1×
  118. 117LormontNew Aquitaine, France
    932.1×
  119. 117CoulommiersÎle-de-France, France
    932.1×
  120. 121KranjUrban Municipality of Kranj, Slovenia
    932.1×
  121. 122GwangmyeongGyeonggi-do, South Korea
    932.1×
  122. 123Sau Mau PingKwun Tong District, Hong Kong
    932.1×
  123. 124Tsuen WanTsuen Wan, Hong Kong
    932.1×
  124. 124MungyeongGyeongsangbuk-do, South Korea
    932.1×
  125. 126Anyang-siGyeonggi-do, South Korea
    922.1×
  126. 127PartizánskeTrenčín Region, Slovakia
    922.1×
  127. 128BordeauxNew Aquitaine, France
    922.1×
  128. 129Sham Shui PoSham Shui Po District, Hong Kong
    922.1×
  129. 129ŁaskŁódź Voivodeship, Poland
    922.1×
  130. 131Tai PoTai Po, Hong Kong
    922.1×
  131. 131WabuGyeonggi-do, South Korea
    922.1×
  132. 133JinchengFukien, Taiwan
    912.1×
  133. 133San Tung Chung HangIslands, Hong Kong
    912.1×
  134. 133CheonanChungcheongnam-do, South Korea
    912.1×
  135. 136Uijeongbu-siGyeonggi-do, South Korea
    912.0×
  136. 137Addis AbabaAddis Ababa, Ethiopia
    912.0×
  137. 137PohangGyeongsangbuk-do, South Korea
    912.0×
  138. 137MarignaneProvence-Alpes-Côte d'Azur, France
    912.0×
  139. 140NamyangjuGyeonggi-do, South Korea
    912.0×
  140. 141GimcheonGyeongsangbuk-do, South Korea
    902.0×
  141. 142Nong KhaemBangkok, Thailand
    902.0×
  142. 142SangjuGyeongsangbuk-do, South Korea
    902.0×
  143. 142HayangGyeongsangbuk-do, South Korea
    902.0×
  144. 145Bang NaBangkok, Thailand
    902.0×
  145. 145KimhaeGyeongsangnam-do, South Korea
    902.0×
  146. 147ChiguayanteBiobio, Chile
    902.0×
  147. 148BuyeoChungcheongnam-do, South Korea
    902.0×
  148. 148NangenJeollabuk-do, South Korea
    902.0×
  149. 148Naucalpan de JuárezMéxico, Mexico
    902.0×
  150. 151Lak SiBangkok, Thailand
    902.0×
  151. 152ChangsuJeollabuk-do, South Korea
    892.0×
  152. 152ZvolenBanská Bystrica Region, Slovakia
    892.0×
  153. 154YŏnmuChungcheongnam-do, South Korea
    892.0×
  154. 154Silao de la VictoriaGuanajuato, Mexico
    892.0×
  155. 156DębicaSubcarpathia, Poland
    892.0×
  156. 157KapellenFlanders, Belgium
    892.0×
  157. 158BusanBusan, South Korea
    881.9×
  158. 158HanamGyeonggi-do, South Korea
    881.9×
  159. 158LochristiFlanders, Belgium
    881.9×
  160. 158KaliszGreater Poland, Poland
    881.9×
  161. 158Asunciónlow-cost sensorsAsuncion, Paraguay
    881.9×
  162. 163IzegemFlanders, Belgium
    881.9×
  163. 164JasłoSubcarpathia, Poland
    881.9×
  164. 165DaejeonDaejeon, South Korea
    881.9×
  165. 165MunsanGyeonggi-do, South Korea
    881.9×
  166. 165HwacheonGangwon-do, South Korea
    881.9×
  167. 165AndongGyeongsangbuk-do, South Korea
    881.9×
  168. 165ŁódźŁódź Voivodeship, Poland
    881.9×
  169. 170WaegwanGyeongsangbuk-do, South Korea
    881.9×
  170. 171WarsawMazovia, Poland
    881.9×
  171. 171AugustówPodlasie, Poland
    881.9×
  172. 171DaeguDaegu, South Korea
    881.9×
  173. 174IksanJeollabuk-do, South Korea
    871.9×
  174. 174CheorwonGangwon-do, South Korea
    871.9×
  175. 174The HagueSouth Holland, The Netherlands
    871.9×
  176. 174PoitiersNew Aquitaine, France
    871.9×
  177. 178Tin Shui WaiYuen Long, Hong Kong
    871.9×
  178. 178EisenGyeongsangbuk-do, South Korea
    871.9×
  179. 178TrenčínTrenčín Region, Slovakia
    871.9×
  180. 181Goyang-siGyeonggi-do, South Korea
    871.9×
  181. 182AvignonProvence-Alpes-Côte d'Azur, France
    871.9×
  182. 182San Luis de la PazGuanajuato, Mexico
    871.9×
  183. 184PoznańGreater Poland, Poland
    871.9×
  184. 185GongjuChungcheongnam-do, South Korea
    861.9×
  185. 186Ban Samae DamBangkok, Thailand
    861.9×
  186. 186MaldegemFlanders, Belgium
    861.9×
  187. 188KigaliKigali, Rwanda
    861.9×
  188. 188OviedoAsturias, Spain
    861.9×
  189. 190BrzegOpole Voivodeship, Poland
    861.9×
  190. 191YesanChungcheongnam-do, South Korea
    861.8×
  191. 191BeverenFlanders, Belgium
    861.8×
  192. 191MüllheimBaden-Wurttemberg, Germany
    861.8×
  193. 191Lat KrabangBangkok, Thailand
    861.8×
  194. 195ÉpinalGrand Est, France
    851.8×
  195. 196Skarżysko-KamiennaŚwiętokrzyskie, Poland
    851.8×
  196. 196Sha TinSha Tin, Hong Kong
    851.8×
  197. 196NamsaJeollabuk-do, South Korea
    851.8×
  198. 196Gyeongsan-siGyeongsangbuk-do, South Korea
    851.8×
  199. 196TongyeongGyeongsangnam-do, South Korea
    851.8×

Top 200 of 2,037 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

Use this board

SmogRank, most polluted cities, PM2.5, January 17, 2025, smogrank.com/history/2025-01-17 (accessed 2 Oct 2026).

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