SmogRank / World / South Korea / 2024

Most polluted cities in South Korea, 2024

136 cities in South Korea ranked by their average PM2.5 over the 366 days; 136 above the WHO annual guideline (5.0 µg/m³). Worst: Seonghwan at 19.6 µg/m³, #110 of 1,836 cities in the world. Cleanest: Kosong at 8.0. A city needs measurements on 70% of the days to be ranked.

OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.

← Seonghwan 19.6 µg/m³ 15 µg/m³5 WHO annual guideline0
Every city in South Korea ranked for 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. 1SeonghwanChungcheongnam-do
    713.9×
  2. 2YeojuGyeonggi-do
    703.8×
  3. 3YesanChungcheongnam-do
    693.8×
  4. 3PubalGyeonggi-do
    693.8×
  5. 5TangjinChungcheongnam-do
    693.7×
  6. 6Gimpo-siGyeonggi-do
    673.6×
  7. 7Icheon-siGyeonggi-do
    673.5×
  8. 8IksanJeollabuk-do
    673.5×
  9. 8IncheonIncheon
    673.5×
  10. 10Hwaseong-siGyeonggi-do
    673.5×
  11. 11PyeongtaekGyeonggi-do
    663.5×
  12. 12Ganghwa-gunIncheon
    663.5×
  13. 12Chinch'ŏnNorth Chungcheong
    663.5×
  14. 14Goyang-siGyeonggi-do
    663.4×
  15. 14KimjeJeollabuk-do
    663.4×
  16. 16GunsanJeollabuk-do
    653.3×
  17. 17BuanJeollabuk-do
    653.3×
  18. 17GwangmyeongGyeonggi-do
    653.3×
  19. 19WŏnjuGangwon-do
    653.3×
  20. 19AsanChungcheongnam-do
    653.3×
  21. 21HayangGyeongsangbuk-do
    643.3×
  22. 22YeongjuGyeongsangbuk-do
    643.2×
  23. 22PohangGyeongsangbuk-do
    643.2×
  24. 22GimcheonGyeongsangbuk-do
    643.2×
  25. 25SeoulSeoul
    643.2×
  26. 25GumiGyeongsangbuk-do
    643.2×
  27. 27JungpyongNorth Chungcheong
    643.2×
  28. 27Ansan-siGyeonggi-do
    643.2×
  29. 29OsanGyeonggi-do
    633.2×
  30. 29KoesanNorth Chungcheong
    633.2×
  31. 29HanamGyeonggi-do
    633.2×
  32. 29HwadoGyeonggi-do
    633.2×
  33. 33SangjuGyeongsangbuk-do
    633.1×
  34. 33Bucheon-siGyeonggi-do
    633.1×
  35. 33HongseongChungcheongnam-do
    633.1×
  36. 33CheonanChungcheongnam-do
    633.1×
  37. 37SuwonGyeonggi-do
    633.1×
  38. 38NonsanChungcheongnam-do
    623.0×
  39. 38NamsaJeollabuk-do
    623.0×
  40. 38Guri-siGyeonggi-do
    623.0×
  41. 41WanjuJeollabuk-do
    623.0×
  42. 41WaegwanGyeongsangbuk-do
    623.0×
  43. 41JeongeupJeollabuk-do
    623.0×
  44. 44Yangp'yŏngGyeonggi-do
    623.0×
  45. 44Anyang-siGyeonggi-do
    623.0×
  46. 44AndongGyeongsangbuk-do
    623.0×
  47. 47Cheongju-siNorth Chungcheong
    623.0×
  48. 48YŏnmuChungcheongnam-do
    623.0×
  49. 49SokchoGangwon-do
    612.9×
  50. 50GwangjuGyeonggi-do
    612.9×
  51. 50KinzanChungcheongnam-do
    612.9×
  52. 52YeongdongNorth Chungcheong
    612.9×
  53. 53Uijeongbu-siGyeonggi-do
    612.9×
  54. 53ChungjuNorth Chungcheong
    612.9×
  55. 55NamyangjuGyeonggi-do
    602.8×
  56. 56UlsanUlsan
    602.8×
  57. 56Hongch’ŏnGangwon-do
    602.8×
  58. 56CheorwonGangwon-do
    602.8×
  59. 56AnseongGyeonggi-do
    602.8×
  60. 56SejongSejong-si
    602.8×
  61. 61DamyangJeollanam-do
    602.8×
  62. 61MasanGwangju
    602.8×
  63. 63EisenGyeongsangbuk-do
    602.8×
  64. 63ChangnyeongGyeongsangnam-do
    602.8×
  65. 65NajuJeollanam-do
    602.7×
  66. 66YecheonGyeongsangbuk-do
    592.7×
  67. 66Donghae CityGangwon-do
    592.7×
  68. 68Gyeongsan-siGyeongsangbuk-do
    592.7×
  69. 68NaesŏGyeongsangnam-do
    592.7×
  70. 70BoryeongChungcheongnam-do
    592.7×
  71. 70BuyeoChungcheongnam-do
    592.7×
  72. 70MunsanGyeonggi-do
    592.7×
  73. 70MokpoJeollanam-do
    592.7×
  74. 74JeonjuJeollabuk-do
    592.6×
  75. 74Seongnam-siGyeonggi-do
    592.6×
  76. 76GongjuChungcheongnam-do
    582.6×
  77. 77OkcheonNorth Chungcheong
    582.6×
  78. 77GwangjuGwangju
    582.6×
  79. 77ChangwonGyeongsangnam-do
    582.6×
  80. 80Koch'angJeollabuk-do
    582.6×
  81. 80TongyeongGyeongsangnam-do
    582.6×
  82. 80ChinjuGyeongsangnam-do
    582.6×
  83. 80WabuGyeonggi-do
    582.6×
  84. 80HwawŏnDaegu
    582.6×
  85. 85BusanBusan
    582.5×
  86. 85GijangBusan
    582.5×
  87. 87YeonilGyeongsangbuk-do
    582.5×
  88. 87SeosanChungcheongnam-do
    582.5×
  89. 89YangjuGyeonggi-do
    572.5×
  90. 89UngsangGyeongsangnam-do
    572.5×
  91. 91YeonggwangJeollanam-do
    572.5×
  92. 91MiryangGyeongsangnam-do
    572.5×
  93. 91KimhaeGyeongsangnam-do
    572.5×
  94. 91Jeju CityJeju-do
    572.5×
  95. 91JangseongJeollanam-do
    572.5×
  96. 96DaejeonDaejeon
    572.5×
  97. 96DaeguDaegu
    572.5×
  98. 96ChangsuJeollabuk-do
    572.5×
  99. 99MungyeongGyeongsangbuk-do
    572.4×
  100. 100NangenJeollabuk-do
    562.4×
  101. 100GangneungGangwon-do
    562.4×
  102. 102SantyokuGangwon-do
    562.4×
  103. 102KwangyangJeollanam-do
    562.4×
  104. 102GoseongGyeongsangnam-do
    562.4×
  105. 105GyeongjuGyeongsangbuk-do
    562.4×
  106. 105GapyeongGyeonggi-do
    562.4×
  107. 107SuncheonJeollanam-do
    562.3×
  108. 107Jinan-gunJeollabuk-do
    562.3×
  109. 107GaigeturiJeju-do
    562.3×
  110. 110ImsilJeollabuk-do
    562.3×
  111. 110JangheungJeollanam-do
    562.3×
  112. 112Taesal-liChungcheongnam-do
    552.3×
  113. 113GwangyangJeollanam-do
    552.3×
  114. 113SeogwipoJeju-do
    552.3×
  115. 115HadongGyeongsangnam-do
    552.3×
  116. 116YangsanGyeongsangnam-do
    552.2×
  117. 116HwasunJeollanam-do
    552.2×
  118. 116BoseongJeollanam-do
    552.2×
  119. 119YeosuJeollanam-do
    552.2×
  120. 120SinanJeollanam-do
    552.2×
  121. 121MuanJeollanam-do
    542.2×
  122. 121JumunjinGangwon-do
    542.2×
  123. 123NeietsuGangwon-do
    542.1×
  124. 124HaenamJeollanam-do
    532.1×
  125. 124ChuncheonGangwon-do
    532.1×
  126. 124Cheongsong gunGyeongsangbuk-do
    532.1×
  127. 127KunwiGyeongsangbuk-do
    532.0×
  128. 127GeojeGyeongsangnam-do
    532.0×
  129. 129HwacheonGangwon-do
    522.0×
  130. 130SinhyeonGyeongsangnam-do
    521.9×
  131. 130YeongamJeollanam-do
    521.9×
  132. 132BeolgyoJeollanam-do
    521.9×
  133. 132KuryeJeollanam-do
    521.9×
  134. 134YangguGangwon-do
    511.8×
  135. 135T’aebaekGangwon-do
    481.7×
  136. 136KosongGangwon-do
    441.6×
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, 2024 · South Korea now

Use this board

SmogRank, most polluted cities in South Korea, PM2.5, 2024, smogrank.com/kr/history/2024 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.