SmogRank / World / South Korea / November 2025

Most polluted cities in South Korea, November 2025

136 cities in South Korea ranked by their average PM2.5 over the 30 days. Worst: Okcheon at 166.1 µg/m³, #23 of 2,370 cities in the world. Cleanest: Beolgyo at 12.6. A city needs measurements on 70% of the days to be ranked.

← Okcheon 166.1 µg/m³ 100 µg/m³0
Every city in South Korea ranked for November 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. 1OkcheonNorth Chungcheong
    241
  2. 2Taesal-liChungcheongnam-do
    217
  3. 3JungpyongNorth Chungcheong
    207
  4. 4GapyeongGyeonggi-do
    196
  5. 5KosongGangwon-do
    189
  6. 6ChuncheonGangwon-do
    188
  7. 7BuyeoChungcheongnam-do
    185
  8. 8Hongch’ŏnGangwon-do
    183
  9. 9PubalGyeonggi-do
    182
  10. 10WaegwanGyeongsangbuk-do
    175
  11. 11WabuGyeonggi-do
    173
  12. 12Yangp'yŏngGyeonggi-do
    170
  13. 13SeonghwanChungcheongnam-do
    168
  14. 14WŏnjuGangwon-do
    167
  15. 15HwawŏnDaegu
    165
  16. 16YeojuGyeonggi-do
    164
  17. 17HwacheonGangwon-do
    163
  18. 18ChangnyeongGyeongsangnam-do
    163
  19. 19WanjuJeollabuk-do
    163
  20. 20Donghae CityGangwon-do
    163
  21. 21YangguGangwon-do
    162
  22. 22KunwiGyeongsangbuk-do
    162
  23. 23HongseongChungcheongnam-do
    159
  24. 24TangjinChungcheongnam-do
    159
  25. 25CheorwonGangwon-do
    158
  26. 26SangjuGyeongsangbuk-do
    157
  27. 27GyeongjuGyeongsangbuk-do
    157
  28. 28YeongdongNorth Chungcheong
    157
  29. 29AndongGyeongsangbuk-do
    155
  30. 30PyeongtaekGyeonggi-do
    154
  31. 30Koch'angJeollabuk-do
    154
  32. 32MiryangGyeongsangnam-do
    154
  33. 32GongjuChungcheongnam-do
    154
  34. 34YeongamJeollanam-do
    154
  35. 35SokchoGangwon-do
    151
  36. 36JumunjinGangwon-do
    151
  37. 37KinzanChungcheongnam-do
    144
  38. 38YeongjuGyeongsangbuk-do
    142
  39. 39SejongSejong-si
    142
  40. 40BoryeongChungcheongnam-do
    139
  41. 41Icheon-siGyeonggi-do
    138
  42. 42GangneungGangwon-do
    137
  43. 43JeongeupJeollabuk-do
    135
  44. 44YangjuGyeonggi-do
    132
  45. 44NamyangjuGyeonggi-do
    132
  46. 46SeosanChungcheongnam-do
    128
  47. 47SinhyeonGyeongsangnam-do
    125
  48. 48TongyeongGyeongsangnam-do
    122
  49. 49ChinjuGyeongsangnam-do
    121
  50. 50YangsanGyeongsangnam-do
    121
  51. 51MokpoJeollanam-do
    120
  52. 52GwangjuGyeonggi-do
    120
  53. 53GeojeGyeongsangnam-do
    119
  54. 54KoesanNorth Chungcheong
    119
  55. 55HwasunJeollanam-do
    118
  56. 56MasanGwangju
    117
  57. 56KimjeJeollabuk-do
    117
  58. 58HadongGyeongsangnam-do
    113
  59. 59YesanChungcheongnam-do
    112
  60. 60HwadoGyeonggi-do
    110
  61. 61AnseongGyeonggi-do
    108
  62. 62SantyokuGangwon-do
    106
  63. 63Hwaseong-siGyeonggi-do
    105
  64. 64Goyang-siGyeonggi-do
    104
  65. 65NangenJeollabuk-do
    103
  66. 66CheonanChungcheongnam-do
    102
  67. 67HayangGyeongsangbuk-do
    99
  68. 68Guri-siGyeonggi-do
    99
  69. 69NamsaJeollabuk-do
    97
  70. 70EisenGyeongsangbuk-do
    97
  71. 70MunsanGyeonggi-do
    97
  72. 72SeogwipoJeju-do
    96
  73. 73YeonilGyeongsangbuk-do
    95
  74. 74ChangsuJeollabuk-do
    95
  75. 75IksanJeollabuk-do
    94
  76. 76DamyangJeollanam-do
    93
  77. 77T’aebaekGangwon-do
    92
  78. 78NaesŏGyeongsangnam-do
    91
  79. 79GoseongGyeongsangnam-do
    89
  80. 80GimcheonGyeongsangbuk-do
    87
  81. 81UngsangGyeongsangnam-do
    87
  82. 82AsanChungcheongnam-do
    85
  83. 83Seongnam-siGyeonggi-do
    84
  84. 84Cheongju-siNorth Chungcheong
    83
  85. 85GunsanJeollabuk-do
    82
  86. 86BuanJeollabuk-do
    81
  87. 87YŏnmuChungcheongnam-do
    80
  88. 88Chinch'ŏnNorth Chungcheong
    79
  89. 89GumiGyeongsangbuk-do
    78
  90. 90SuwonGyeonggi-do
    76
  91. 91Ganghwa-gunIncheon
    76
  92. 92Gimpo-siGyeonggi-do
    76
  93. 93OsanGyeonggi-do
    76
  94. 93MuanJeollanam-do
    76
  95. 93Ansan-siGyeonggi-do
    76
  96. 96ChungjuNorth Chungcheong
    75
  97. 97Gyeongsan-siGyeongsangbuk-do
    74
  98. 98Uijeongbu-siGyeonggi-do
    74
  99. 98Bucheon-siGyeonggi-do
    74
  100. 100GwangmyeongGyeonggi-do
    74
  101. 101IncheonIncheon
    74
  102. 102NonsanChungcheongnam-do
    73
  103. 103SeoulSeoul
    73
  104. 104Anyang-siGyeonggi-do
    72
  105. 105DaeguDaegu
    72
  106. 106GwangyangJeollanam-do
    71
  107. 107JeonjuJeollabuk-do
    71
  108. 108DaejeonDaejeon
    71
  109. 109HanamGyeonggi-do
    70
  110. 110PohangGyeongsangbuk-do
    70
  111. 111MungyeongGyeongsangbuk-do
    68
  112. 112Jinan-gunJeollabuk-do
    68
  113. 113GwangjuGwangju
    67
  114. 113ImsilJeollabuk-do
    67
  115. 115YecheonGyeongsangbuk-do
    67
  116. 116NeietsuGangwon-do
    66
  117. 117BusanBusan
    66
  118. 118YeonggwangJeollanam-do
    66
  119. 119KimhaeGyeongsangnam-do
    65
  120. 120ChangwonGyeongsangnam-do
    65
  121. 121UlsanUlsan
    65
  122. 122HaenamJeollanam-do
    64
  123. 123BoseongJeollanam-do
    64
  124. 124JangseongJeollanam-do
    63
  125. 125GijangBusan
    63
  126. 126NajuJeollanam-do
    63
  127. 126Cheongsong gunGyeongsangbuk-do
    63
  128. 128YeosuJeollanam-do
    62
  129. 129SuncheonJeollanam-do
    61
  130. 130SinanJeollanam-do
    60
  131. 131Jeju CityJeju-do
    59
  132. 131JangheungJeollanam-do
    59
  133. 133KwangyangJeollanam-do
    59
  134. 134KuryeJeollanam-do
    59
  135. 135GaigeturiJeju-do
    58
  136. 136BeolgyoJeollanam-do
    58
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

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SmogRank, most polluted cities in South Korea, PM2.5, November 2025, smogrank.com/kr/history/2025-11 (accessed 2 Oct 2026).

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