SmogRank / World / South Korea / February 2026

Most polluted cities in South Korea, February 2026

135 cities in South Korea ranked by their average PM2.5 over the 28 days. Worst: Yeongju at 32.6 µg/m³, #215 of 2,520 cities in the world. Cleanest: Beolgyo at 13.3. A city needs measurements on 70% of the days to be ranked.

← Yeongju 32.6 µg/m³ 30 µg/m³0
Every city in South Korea ranked for February 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. 1YeongjuGyeongsangbuk-do
    95
  2. 2PubalGyeonggi-do
    94
  3. 3SeonghwanChungcheongnam-do
    94
  4. 4WŏnjuGangwon-do
    92
  5. 5CheorwonGangwon-do
    89
  6. 6AsanChungcheongnam-do
    88
  7. 7HwadoGyeonggi-do
    88
  8. 8Ganghwa-gunIncheon
    87
  9. 9YeojuGyeonggi-do
    86
  10. 10ChungjuNorth Chungcheong
    86
  11. 11OkcheonNorth Chungcheong
    86
  12. 11KimjeJeollabuk-do
    86
  13. 13SeoulSeoul
    86
  14. 14GapyeongGyeonggi-do
    85
  15. 15Chinch'ŏnNorth Chungcheong
    85
  16. 16Gimpo-siGyeonggi-do
    85
  17. 16Cheongju-siNorth Chungcheong
    85
  18. 18KoesanNorth Chungcheong
    85
  19. 18Hongch’ŏnGangwon-do
    85
  20. 20Uijeongbu-siGyeonggi-do
    85
  21. 21MunsanGyeonggi-do
    85
  22. 21Guri-siGyeonggi-do
    85
  23. 21KinzanChungcheongnam-do
    85
  24. 24HongseongChungcheongnam-do
    84
  25. 25JungpyongNorth Chungcheong
    84
  26. 25SejongSejong-si
    84
  27. 27GwangmyeongGyeonggi-do
    84
  28. 28Icheon-siGyeonggi-do
    84
  29. 29IncheonIncheon
    83
  30. 30BuanJeollabuk-do
    83
  31. 31Seongnam-siGyeonggi-do
    82
  32. 32Bucheon-siGyeonggi-do
    82
  33. 32GwangjuGyeonggi-do
    82
  34. 34WaegwanGyeongsangbuk-do
    82
  35. 34HanamGyeonggi-do
    82
  36. 36TangjinChungcheongnam-do
    82
  37. 36SangjuGyeongsangbuk-do
    82
  38. 38YesanChungcheongnam-do
    82
  39. 39IksanJeollabuk-do
    82
  40. 39ChuncheonGangwon-do
    82
  41. 41YangguGangwon-do
    81
  42. 41GumiGyeongsangbuk-do
    81
  43. 43Yangp'yŏngGyeonggi-do
    81
  44. 43WabuGyeonggi-do
    81
  45. 45YeongdongNorth Chungcheong
    81
  46. 45OsanGyeonggi-do
    81
  47. 47NamyangjuGyeonggi-do
    81
  48. 48BoryeongChungcheongnam-do
    81
  49. 48GunsanJeollabuk-do
    81
  50. 50SuwonGyeonggi-do
    80
  51. 50Anyang-siGyeonggi-do
    80
  52. 52GimcheonGyeongsangbuk-do
    80
  53. 52HwacheonGangwon-do
    80
  54. 54CheonanChungcheongnam-do
    80
  55. 55NamsaJeollabuk-do
    79
  56. 55MasanGwangju
    79
  57. 55Goyang-siGyeonggi-do
    79
  58. 58NonsanChungcheongnam-do
    79
  59. 58YŏnmuChungcheongnam-do
    79
  60. 60Jinan-gunJeollabuk-do
    79
  61. 60JeongeupJeollabuk-do
    79
  62. 62NeietsuGangwon-do
    79
  63. 62PyeongtaekGyeonggi-do
    79
  64. 64Gyeongsan-siGyeongsangbuk-do
    79
  65. 64AnseongGyeonggi-do
    79
  66. 66AndongGyeongsangbuk-do
    78
  67. 67YangjuGyeonggi-do
    78
  68. 68WanjuJeollabuk-do
    78
  69. 69Ansan-siGyeonggi-do
    78
  70. 70PohangGyeongsangbuk-do
    77
  71. 71Hwaseong-siGyeonggi-do
    77
  72. 72HayangGyeongsangbuk-do
    76
  73. 73DaejeonDaejeon
    76
  74. 74DaeguDaegu
    76
  75. 74Cheongsong gunGyeongsangbuk-do
    76
  76. 76MungyeongGyeongsangbuk-do
    76
  77. 76GwangjuGwangju
    76
  78. 78ChinjuGyeongsangnam-do
    75
  79. 79ChangsuJeollabuk-do
    75
  80. 80YeonilGyeongsangbuk-do
    75
  81. 81GongjuChungcheongnam-do
    75
  82. 82JeonjuJeollabuk-do
    74
  83. 83YecheonGyeongsangbuk-do
    74
  84. 84EisenGyeongsangbuk-do
    74
  85. 84MokpoJeollanam-do
    74
  86. 86KunwiGyeongsangbuk-do
    74
  87. 86SinhyeonGyeongsangnam-do
    74
  88. 86Donghae CityGangwon-do
    74
  89. 89HwawŏnDaegu
    73
  90. 90ImsilJeollabuk-do
    73
  91. 91TongyeongGyeongsangnam-do
    73
  92. 92SeosanChungcheongnam-do
    73
  93. 93NangenJeollabuk-do
    72
  94. 93MiryangGyeongsangnam-do
    72
  95. 95SantyokuGangwon-do
    72
  96. 95YeongamJeollanam-do
    72
  97. 97Taesal-liChungcheongnam-do
    72
  98. 98BusanBusan
    72
  99. 99T’aebaekGangwon-do
    70
  100. 99HaenamJeollanam-do
    70
  101. 101GyeongjuGyeongsangbuk-do
    70
  102. 102UlsanUlsan
    70
  103. 102KimhaeGyeongsangnam-do
    70
  104. 104GeojeGyeongsangnam-do
    69
  105. 104HadongGyeongsangnam-do
    69
  106. 106GoseongGyeongsangnam-do
    69
  107. 107YeonggwangJeollanam-do
    69
  108. 108SokchoGangwon-do
    69
  109. 109GijangBusan
    69
  110. 109NaesŏGyeongsangnam-do
    69
  111. 111DamyangJeollanam-do
    68
  112. 111Koch'angJeollabuk-do
    68
  113. 113ChangwonGyeongsangnam-do
    68
  114. 114JangseongJeollanam-do
    68
  115. 115JumunjinGangwon-do
    68
  116. 115ChangnyeongGyeongsangnam-do
    68
  117. 117GangneungGangwon-do
    67
  118. 118SinanJeollanam-do
    66
  119. 119GwangyangJeollanam-do
    66
  120. 120KosongGangwon-do
    66
  121. 121KwangyangJeollanam-do
    66
  122. 122SuncheonJeollanam-do
    66
  123. 123BuyeoChungcheongnam-do
    65
  124. 123YeosuJeollanam-do
    65
  125. 125NajuJeollanam-do
    65
  126. 126YangsanGyeongsangnam-do
    65
  127. 126Jeju CityJeju-do
    65
  128. 128GaigeturiJeju-do
    64
  129. 129HwasunJeollanam-do
    63
  130. 129UngsangGyeongsangnam-do
    63
  131. 131MuanJeollanam-do
    63
  132. 131BoseongJeollanam-do
    63
  133. 133JangheungJeollanam-do
    63
  134. 134SeogwipoJeju-do
    61
  135. 135BeolgyoJeollanam-do
    59
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, February 2026, smogrank.com/kr/history/2026-02 (accessed 2 Oct 2026).

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