SmogRank / World / South Korea / January 2025

Most polluted cities in South Korea, January 2025

136 cities in South Korea ranked by their average PM2.5 over the 31 days. Worst: Pubal at 37.5 µg/m³, #56 of 2,121 cities in the world. Cleanest: Beolgyo at 12.7. A city needs measurements on 70% of the days to be ranked.

← Pubal 37.5
Every city in South Korea ranked for January 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1PubalGyeonggi-do
    37.5
  2. 2Yangp'yŏngGyeonggi-do
    34.1
  3. 3YeojuGyeonggi-do
    33.0
  4. 4SeonghwanChungcheongnam-do
    32.6
  5. 5Icheon-siGyeonggi-do
    31.6
  6. 6GumiGyeongsangbuk-do
    31.4
  7. 7WŏnjuGangwon-do
    30.9
  8. 8YeongjuGyeongsangbuk-do
    30.8
  9. 9KinzanChungcheongnam-do
    30.6
  10. 10HwadoGyeonggi-do
    30.4
  11. 11PyeongtaekGyeonggi-do
    30.1
  12. 12JungpyongNorth Chungcheong
    29.7
  13. 13ChungjuNorth Chungcheong
    29.2
  14. 14KoesanNorth Chungcheong
    29.0
  15. 14Cheongju-siNorth Chungcheong
    29.0
  16. 16YeongdongNorth Chungcheong
    28.8
  17. 17Hongch’ŏnGangwon-do
    28.5
  18. 18AnseongGyeonggi-do
    28.3
  19. 19AsanChungcheongnam-do
    28.0
  20. 20OsanGyeonggi-do
    27.8
  21. 20GimcheonGyeongsangbuk-do
    27.8
  22. 20Chinch'ŏnNorth Chungcheong
    27.8
  23. 23GwangjuGyeonggi-do
    27.6
  24. 24SejongSejong-si
    27.5
  25. 25SuwonGyeonggi-do
    27.3
  26. 25OkcheonNorth Chungcheong
    27.3
  27. 27SeoulSeoul
    27.2
  28. 28MunsanGyeonggi-do
    27.0
  29. 28Guri-siGyeonggi-do
    27.0
  30. 28YŏnmuChungcheongnam-do
    27.0
  31. 28GwangmyeongGyeonggi-do
    27.0
  32. 32ChuncheonGangwon-do
    26.7
  33. 33Goyang-siGyeonggi-do
    26.4
  34. 34Uijeongbu-siGyeonggi-do
    26.0
  35. 34BuyeoChungcheongnam-do
    26.0
  36. 34Gimpo-siGyeonggi-do
    26.0
  37. 37YesanChungcheongnam-do
    25.9
  38. 37WabuGyeonggi-do
    25.9
  39. 39Ganghwa-gunIncheon
    25.8
  40. 39IksanJeollabuk-do
    25.8
  41. 39CheonanChungcheongnam-do
    25.8
  42. 42SangjuGyeongsangbuk-do
    25.6
  43. 42Bucheon-siGyeonggi-do
    25.6
  44. 44Anyang-siGyeonggi-do
    25.1
  45. 44Ansan-siGyeonggi-do
    25.1
  46. 44AndongGyeongsangbuk-do
    25.1
  47. 47GunsanJeollabuk-do
    24.9
  48. 48PohangGyeongsangbuk-do
    24.8
  49. 49Seongnam-siGyeonggi-do
    24.7
  50. 50YangjuGyeonggi-do
    24.6
  51. 50CheorwonGangwon-do
    24.6
  52. 52TangjinChungcheongnam-do
    24.5
  53. 52NonsanChungcheongnam-do
    24.5
  54. 52NamyangjuGyeonggi-do
    24.5
  55. 55KimjeJeollabuk-do
    24.4
  56. 55IncheonIncheon
    24.4
  57. 55HongseongChungcheongnam-do
    24.4
  58. 58Hwaseong-siGyeonggi-do
    24.3
  59. 59WaegwanGyeongsangbuk-do
    24.0
  60. 60HayangGyeongsangbuk-do
    23.9
  61. 60TongyeongGyeongsangnam-do
    23.9
  62. 62Gyeongsan-siGyeongsangbuk-do
    23.8
  63. 63HwacheonGangwon-do
    23.3
  64. 64BuanJeollabuk-do
    23.1
  65. 64HanamGyeonggi-do
    23.1
  66. 66MungyeongGyeongsangbuk-do
    23.0
  67. 67BoryeongChungcheongnam-do
    22.7
  68. 68WanjuJeollabuk-do
    22.6
  69. 69YeonilGyeongsangbuk-do
    22.5
  70. 69DaeguDaegu
    22.5
  71. 71NangenJeollabuk-do
    22.4
  72. 72BusanBusan
    22.3
  73. 72ChangsuJeollabuk-do
    22.3
  74. 74GapyeongGyeonggi-do
    22.1
  75. 75GongjuChungcheongnam-do
    21.9
  76. 76NeietsuGangwon-do
    21.8
  77. 76ChinjuGyeongsangnam-do
    21.8
  78. 78SeosanChungcheongnam-do
    21.6
  79. 78NamsaJeollabuk-do
    21.6
  80. 80NajuJeollanam-do
    21.3
  81. 81MasanGwangju
    21.2
  82. 81NaesŏGyeongsangnam-do
    21.2
  83. 83YangguGangwon-do
    21.1
  84. 84DaejeonDaejeon
    21.0
  85. 84KunwiGyeongsangbuk-do
    21.0
  86. 86YecheonGyeongsangbuk-do
    20.9
  87. 86JeonjuJeollabuk-do
    20.9
  88. 86HwawŏnDaegu
    20.9
  89. 89SantyokuGangwon-do
    20.8
  90. 89GijangBusan
    20.8
  91. 91KimhaeGyeongsangnam-do
    20.7
  92. 92GwangjuGwangju
    20.6
  93. 93UlsanUlsan
    20.4
  94. 94EisenGyeongsangbuk-do
    20.2
  95. 95GangneungGangwon-do
    20.1
  96. 95JeongeupJeollabuk-do
    20.1
  97. 97Donghae CityGangwon-do
    19.9
  98. 98ImsilJeollabuk-do
    19.7
  99. 98ChangnyeongGyeongsangnam-do
    19.7
  100. 100MiryangGyeongsangnam-do
    19.6
  101. 100Jinan-gunJeollabuk-do
    19.6
  102. 102GoseongGyeongsangnam-do
    19.3
  103. 103Cheongsong gunGyeongsangbuk-do
    19.1
  104. 103UngsangGyeongsangnam-do
    19.1
  105. 105GyeongjuGyeongsangbuk-do
    19.0
  106. 105SinhyeonGyeongsangnam-do
    19.0
  107. 107ChangwonGyeongsangnam-do
    18.9
  108. 108KwangyangJeollanam-do
    18.4
  109. 109YeosuJeollanam-do
    18.3
  110. 110YangsanGyeongsangnam-do
    18.0
  111. 110HaenamJeollanam-do
    18.0
  112. 110GeojeGyeongsangnam-do
    18.0
  113. 113MokpoJeollanam-do
    17.8
  114. 114DamyangJeollanam-do
    17.6
  115. 115YeonggwangJeollanam-do
    17.5
  116. 116GwangyangJeollanam-do
    17.4
  117. 117JangseongJeollanam-do
    17.3
  118. 118SeogwipoJeju-do
    17.0
  119. 119Jeju CityJeju-do
    16.5
  120. 119HadongGyeongsangnam-do
    16.5
  121. 121GaigeturiJeju-do
    16.4
  122. 122YeongamJeollanam-do
    16.3
  123. 123Koch'angJeollabuk-do
    15.7
  124. 123BoseongJeollanam-do
    15.7
  125. 125SuncheonJeollanam-do
    15.4
  126. 126KosongGangwon-do
    15.2
  127. 127MuanJeollanam-do
    15.0
  128. 128JangheungJeollanam-do
    14.6
  129. 129SokchoGangwon-do
    14.2
  130. 130T’aebaekGangwon-do
    14.1
  131. 131HwasunJeollanam-do
    13.8
  132. 132KuryeJeollanam-do
    13.2
  133. 133Taesal-liChungcheongnam-do
    12.9
  134. 133JumunjinGangwon-do
    12.9
  135. 135SinanJeollanam-do
    12.8
  136. 136BeolgyoJeollanam-do
    12.7
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, January 2025 · South Korea now

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

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