SmogRank / World / South Korea / 2026

Most polluted cities in South Korea, 2026

136 cities in South Korea ranked by their average PM2.5 so far (273 of 365 days); 136 above the WHO annual guideline (5.0 µg/m³). Worst: Miryang at 257.8 µg/m³, #1 of 2,452 cities in the world. Cleanest: Daegu at 14.4. A city needs measurements on 70% of the days to be ranked.

← Miryang 257.8 µg/m³ 200 µg/m³5 WHO annual guideline
Every city in South Korea ranked for 2026, 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. 1MiryangGyeongsangnam-do
    36551.6×
  2. 2HwasunJeollanam-do
    29143.4×
  3. 3SinhyeonGyeongsangnam-do
    22129.1×
  4. 4SejongSejong-si
    21527.9×
  5. 5HadongGyeongsangnam-do
    21327.5×
  6. 6SeogwipoJeju-do
    21227.3×
  7. 7SeosanChungcheongnam-do
    20626.1×
  8. 8GaigeturiJeju-do
    20025.0×
  9. 9HongseongChungcheongnam-do
    19924.8×
  10. 10PubalGyeonggi-do
    18721.5×
  11. 11KinzanChungcheongnam-do
    18721.4×
  12. 12TangjinChungcheongnam-do
    18621.1×
  13. 13BeolgyoJeollanam-do
    18220.0×
  14. 14AnseongGyeonggi-do
    18219.8×
  15. 15Taesal-liChungcheongnam-do
    18119.8×
  16. 16GapyeongGyeonggi-do
    17818.7×
  17. 17YangjuGyeonggi-do
    17718.5×
  18. 18Hwaseong-siGyeonggi-do
    17618.4×
  19. 19Yangp'yŏngGyeonggi-do
    17518.1×
  20. 20GangneungGangwon-do
    17518.0×
  21. 21YeongdongNorth Chungcheong
    17417.6×
  22. 22GeojeGyeongsangnam-do
    17317.3×
  23. 23HwawŏnDaegu
    17217.1×
  24. 24TongyeongGyeongsangnam-do
    17217.0×
  25. 25BoryeongChungcheongnam-do
    17116.9×
  26. 26GongjuChungcheongnam-do
    17116.9×
  27. 27NonsanChungcheongnam-do
    17116.8×
  28. 28SinanJeollanam-do
    17016.6×
  29. 29SeonghwanChungcheongnam-do
    17016.6×
  30. 30KosongGangwon-do
    16916.1×
  31. 30Ganghwa-gunIncheon
    16916.1×
  32. 32NangenJeollabuk-do
    16715.8×
  33. 32KunwiGyeongsangbuk-do
    16715.8×
  34. 34ChuncheonGangwon-do
    16715.7×
  35. 35WabuGyeonggi-do
    16715.6×
  36. 36ChinjuGyeongsangnam-do
    16715.6×
  37. 37KimjeJeollabuk-do
    16615.4×
  38. 38GoseongGyeongsangnam-do
    16615.4×
  39. 39Jeju CityJeju-do
    16515.1×
  40. 40NamsaJeollabuk-do
    16515.0×
  41. 41ChangsuJeollabuk-do
    16414.9×
  42. 42OkcheonNorth Chungcheong
    16414.9×
  43. 43T’aebaekGangwon-do
    16414.8×
  44. 44MunsanGyeonggi-do
    16214.3×
  45. 45SantyokuGangwon-do
    16114.1×
  46. 46JangheungJeollanam-do
    16113.9×
  47. 47HaenamJeollanam-do
    16113.9×
  48. 48BuanJeollabuk-do
    16013.7×
  49. 49EisenGyeongsangbuk-do
    16013.5×
  50. 50YeojuGyeonggi-do
    15913.5×
  51. 51BuyeoChungcheongnam-do
    15913.4×
  52. 52ChangnyeongGyeongsangnam-do
    15913.3×
  53. 53Chinch'ŏnNorth Chungcheong
    15913.3×
  54. 54DamyangJeollanam-do
    15813.1×
  55. 55MasanGwangju
    15813.0×
  56. 56NamyangjuGyeonggi-do
    15712.9×
  57. 57HayangGyeongsangbuk-do
    15712.7×
  58. 58KoesanNorth Chungcheong
    15712.7×
  59. 59Icheon-siGyeonggi-do
    15612.7×
  60. 60Jinan-gunJeollabuk-do
    15612.6×
  61. 61JungpyongNorth Chungcheong
    15612.5×
  62. 62YangsanGyeongsangnam-do
    15612.5×
  63. 63KuryeJeollanam-do
    15512.2×
  64. 64Koch'angJeollabuk-do
    15412.0×
  65. 65HwadoGyeonggi-do
    15411.9×
  66. 66JeongeupJeollabuk-do
    15411.8×
  67. 67YeongjuGyeongsangbuk-do
    15311.6×
  68. 68MokpoJeollanam-do
    15311.6×
  69. 69WanjuJeollabuk-do
    15211.4×
  70. 70MungyeongGyeongsangbuk-do
    15211.3×
  71. 71MuanJeollanam-do
    15111.2×
  72. 72YŏnmuChungcheongnam-do
    15111.1×
  73. 73GwangjuGyeonggi-do
    15111.1×
  74. 74AsanChungcheongnam-do
    15011.0×
  75. 75HwacheonGangwon-do
    14911.0×
  76. 76SangjuGyeongsangbuk-do
    14710.8×
  77. 77YecheonGyeongsangbuk-do
    14610.7×
  78. 78JangseongJeollanam-do
    14410.6×
  79. 79YesanChungcheongnam-do
    14310.5×
  80. 80ImsilJeollabuk-do
    14210.4×
  81. 81JumunjinGangwon-do
    14210.4×
  82. 82NajuJeollanam-do
    14110.3×
  83. 83PyeongtaekGyeonggi-do
    14010.3×
  84. 84Cheongju-siNorth Chungcheong
    13810.1×
  85. 85YeonggwangJeollanam-do
    1349.7×
  86. 86YangguGangwon-do
    1339.7×
  87. 87BoseongJeollanam-do
    1319.5×
  88. 88Hongch’ŏnGangwon-do
    1319.5×
  89. 89GimcheonGyeongsangbuk-do
    1309.5×
  90. 90GyeongjuGyeongsangbuk-do
    1269.2×
  91. 91IksanJeollabuk-do
    1259.1×
  92. 92NeietsuGangwon-do
    1249.0×
  93. 93GwangmyeongGyeonggi-do
    1249.0×
  94. 94CheorwonGangwon-do
    1238.9×
  95. 95SokchoGangwon-do
    1218.8×
  96. 96YeongamJeollanam-do
    1208.6×
  97. 97AndongGyeongsangbuk-do
    1198.5×
  98. 98WaegwanGyeongsangbuk-do
    1188.5×
  99. 99DaejeonDaejeon
    1178.4×
  100. 100JeonjuJeollabuk-do
    1178.4×
  101. 101CheonanChungcheongnam-do
    1158.3×
  102. 102SuncheonJeollanam-do
    1158.2×
  103. 103GunsanJeollabuk-do
    1138.0×
  104. 104Cheongsong gunGyeongsangbuk-do
    1128.0×
  105. 105WŏnjuGangwon-do
    1107.8×
  106. 106UngsangGyeongsangnam-do
    1107.8×
  107. 107Donghae CityGangwon-do
    1067.5×
  108. 108YeonilGyeongsangbuk-do
    986.9×
  109. 108GwangjuGwangju
    986.9×
  110. 110Goyang-siGyeonggi-do
    976.7×
  111. 111HanamGyeonggi-do
    966.6×
  112. 112NaesŏGyeongsangnam-do
    966.6×
  113. 113Gyeongsan-siGyeongsangbuk-do
    936.3×
  114. 114ChungjuNorth Chungcheong
    906.0×
  115. 115GwangyangJeollanam-do
    906.0×
  116. 116SeoulSeoul
    895.9×
  117. 117Guri-siGyeonggi-do
    885.8×
  118. 118GumiGyeongsangbuk-do
    875.7×
  119. 119UlsanUlsan
    865.6×
  120. 120KimhaeGyeongsangnam-do
    815.1×
  121. 121PohangGyeongsangbuk-do
    815.0×
  122. 122Anyang-siGyeonggi-do
    815.0×
  123. 123Uijeongbu-siGyeonggi-do
    794.9×
  124. 123Gimpo-siGyeonggi-do
    794.9×
  125. 125KwangyangJeollanam-do
    784.7×
  126. 126SuwonGyeonggi-do
    784.7×
  127. 127Ansan-siGyeonggi-do
    764.5×
  128. 128Bucheon-siGyeonggi-do
    764.5×
  129. 128YeosuJeollanam-do
    764.5×
  130. 130Seongnam-siGyeonggi-do
    744.3×
  131. 131OsanGyeonggi-do
    734.2×
  132. 132IncheonIncheon
    724.1×
  133. 133BusanBusan
    713.9×
  134. 134GijangBusan
    683.7×
  135. 135ChangwonGyeongsangnam-do
    633.1×
  136. 136DaeguDaegu
    612.9×
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

All cities in the world, 2026 · South Korea now

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SmogRank, most polluted cities in South Korea, PM2.5, 2026 (so far), smogrank.com/kr/history/2026 (accessed 2 Oct 2026).

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