SmogRank / World / South Korea / June 2025

Most polluted cities in South Korea, June 2025

134 cities in South Korea ranked by their average PM2.5 over the 30 days. Worst: Iksan at 21.1 µg/m³, #202 of 2,182 cities in the world. Cleanest: Seogwipo at 9.6. A city needs measurements on 70% of the days to be ranked.

← Iksan 21.1 µg/m³ 20 µg/m³0
Every city in South Korea ranked for June 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. 1IksanJeollabuk-do
    21.1
  2. 2Gimpo-siGyeonggi-do
    20.8
  3. 3SeonghwanChungcheongnam-do
    20.3
  4. 4UlsanUlsan
    19.9
  5. 4JeongeupJeollabuk-do
    19.9
  6. 6Ansan-siGyeonggi-do
    19.6
  7. 7OsanGyeonggi-do
    19.5
  8. 8GumiGyeongsangbuk-do
    19.4
  9. 8Icheon-siGyeonggi-do
    19.4
  10. 10WŏnjuGangwon-do
    19.3
  11. 11HayangGyeongsangbuk-do
    19.2
  12. 12Hwaseong-siGyeonggi-do
    19.1
  13. 13JungpyongNorth Chungcheong
    19.0
  14. 14TangjinChungcheongnam-do
    18.8
  15. 15IncheonIncheon
    18.7
  16. 16YŏnmuChungcheongnam-do
    18.6
  17. 17WanjuJeollabuk-do
    18.5
  18. 17Goyang-siGyeonggi-do
    18.5
  19. 19GunsanJeollabuk-do
    18.4
  20. 20PyeongtaekGyeonggi-do
    18.2
  21. 21SangjuGyeongsangbuk-do
    18.1
  22. 22AsanChungcheongnam-do
    18.0
  23. 22Guri-siGyeonggi-do
    18.0
  24. 24WaegwanGyeongsangbuk-do
    17.9
  25. 25YeojuGyeonggi-do
    17.8
  26. 25Chinch'ŏnNorth Chungcheong
    17.8
  27. 25HanamGyeonggi-do
    17.8
  28. 28SeoulSeoul
    17.7
  29. 29Bucheon-siGyeonggi-do
    17.6
  30. 30PohangGyeongsangbuk-do
    17.4
  31. 31EisenGyeongsangbuk-do
    17.3
  32. 32SantyokuGangwon-do
    17.2
  33. 32CheorwonGangwon-do
    17.2
  34. 34Ganghwa-gunIncheon
    17.1
  35. 35KimjeJeollabuk-do
    17.0
  36. 36SuwonGyeonggi-do
    16.9
  37. 36KinzanChungcheongnam-do
    16.9
  38. 38YesanChungcheongnam-do
    16.8
  39. 38YecheonGyeongsangbuk-do
    16.8
  40. 40Uijeongbu-siGyeonggi-do
    16.7
  41. 40BuanJeollabuk-do
    16.7
  42. 40HwawŏnDaegu
    16.7
  43. 40GwangmyeongGyeonggi-do
    16.7
  44. 44YeongdongNorth Chungcheong
    16.6
  45. 44Yangp'yŏngGyeonggi-do
    16.6
  46. 44NangenJeollabuk-do
    16.6
  47. 44NamsaJeollabuk-do
    16.6
  48. 44NajuJeollanam-do
    16.6
  49. 44MiryangGyeongsangnam-do
    16.6
  50. 44SejongSejong-si
    16.6
  51. 51GoseongGyeongsangnam-do
    16.5
  52. 51ChungjuNorth Chungcheong
    16.5
  53. 53NonsanChungcheongnam-do
    16.3
  54. 53Anyang-siGyeonggi-do
    16.3
  55. 55KoesanNorth Chungcheong
    16.2
  56. 56YeonilGyeongsangbuk-do
    16.0
  57. 56YeonggwangJeollanam-do
    16.0
  58. 56CheonanChungcheongnam-do
    16.0
  59. 59DaeguDaegu
    15.9
  60. 60Koch'angJeollabuk-do
    15.7
  61. 60HongseongChungcheongnam-do
    15.7
  62. 60ChinjuGyeongsangnam-do
    15.7
  63. 63BusanBusan
    15.5
  64. 63OkcheonNorth Chungcheong
    15.5
  65. 63MasanGwangju
    15.5
  66. 63GwangjuGyeonggi-do
    15.5
  67. 63GimcheonGyeongsangbuk-do
    15.5
  68. 63NamyangjuGyeonggi-do
    15.5
  69. 69YeongjuGyeongsangbuk-do
    15.4
  70. 69Cheongju-siNorth Chungcheong
    15.4
  71. 69ChangnyeongGyeongsangnam-do
    15.4
  72. 72SokchoGangwon-do
    15.3
  73. 72ChangwonGyeongsangnam-do
    15.3
  74. 74BoryeongChungcheongnam-do
    15.2
  75. 74BuyeoChungcheongnam-do
    15.2
  76. 74YeongamJeollanam-do
    15.2
  77. 77JeonjuJeollabuk-do
    15.1
  78. 77ChangsuJeollabuk-do
    15.1
  79. 79HwadoGyeonggi-do
    15.0
  80. 79UngsangGyeongsangnam-do
    15.0
  81. 81DaejeonDaejeon
    14.9
  82. 81MunsanGyeonggi-do
    14.9
  83. 81ImsilJeollabuk-do
    14.9
  84. 84YangsanGyeongsangnam-do
    14.8
  85. 84TongyeongGyeongsangnam-do
    14.8
  86. 84NaesŏGyeongsangnam-do
    14.8
  87. 87GijangBusan
    14.7
  88. 87Seongnam-siGyeonggi-do
    14.7
  89. 89Hongch’ŏnGangwon-do
    14.5
  90. 89JangheungJeollanam-do
    14.5
  91. 89HadongGyeongsangnam-do
    14.5
  92. 92SinhyeonGyeongsangnam-do
    14.4
  93. 93Cheongsong gunGyeongsangbuk-do
    14.3
  94. 93GwangyangJeollanam-do
    14.3
  95. 95JangseongJeollanam-do
    14.2
  96. 96YangjuGyeonggi-do
    14.1
  97. 96DamyangJeollanam-do
    14.1
  98. 96Gyeongsan-siGyeongsangbuk-do
    14.1
  99. 96WabuGyeonggi-do
    14.1
  100. 100GyeongjuGyeongsangbuk-do
    14.0
  101. 100KimhaeGyeongsangnam-do
    14.0
  102. 102MungyeongGyeongsangbuk-do
    13.9
  103. 103AnseongGyeonggi-do
    13.8
  104. 104HaenamJeollanam-do
    13.7
  105. 105NeietsuGangwon-do
    13.3
  106. 105KwangyangJeollanam-do
    13.3
  107. 105GapyeongGyeonggi-do
    13.3
  108. 105GangneungGangwon-do
    13.3
  109. 109MuanJeollanam-do
    13.1
  110. 109Donghae CityGangwon-do
    13.1
  111. 111YangguGangwon-do
    13.0
  112. 111KunwiGyeongsangbuk-do
    13.0
  113. 111GeojeGyeongsangnam-do
    13.0
  114. 114GwangjuGwangju
    12.9
  115. 115KuryeJeollanam-do
    12.8
  116. 115GongjuChungcheongnam-do
    12.8
  117. 115HwasunJeollanam-do
    12.8
  118. 118SeosanChungcheongnam-do
    12.7
  119. 118Jeju CityJeju-do
    12.7
  120. 120BoseongJeollanam-do
    12.6
  121. 121AndongGyeongsangbuk-do
    12.3
  122. 122Jinan-gunJeollabuk-do
    12.1
  123. 123BeolgyoJeollanam-do
    11.9
  124. 123YeosuJeollanam-do
    11.9
  125. 125JumunjinGangwon-do
    11.5
  126. 125SinanJeollanam-do
    11.5
  127. 127Taesal-liChungcheongnam-do
    11.4
  128. 127MokpoJeollanam-do
    11.4
  129. 127ChuncheonGangwon-do
    11.4
  130. 130SuncheonJeollanam-do
    11.3
  131. 131GaigeturiJeju-do
    11.1
  132. 132HwacheonGangwon-do
    10.6
  133. 133KosongGangwon-do
    10.5
  134. 134SeogwipoJeju-do
    9.6
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. 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, June 2025 · South Korea now

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SmogRank, most polluted cities in South Korea, PM2.5, June 2025, smogrank.com/kr/history/2025-06 (accessed 2 Oct 2026).

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