SmogRank / World / South Korea / July 2025

Most polluted cities in South Korea, July 2025

135 cities in South Korea ranked by their average PM2.5 over the 31 days. Worst: Gimpo-si at 17.6 µg/m³, #245 of 2,499 cities in the world. Cleanest: Gapyeong at 6.8. A city needs measurements on 70% of the days to be ranked.

← Gimpo-si 17.6
Every city in South Korea ranked for July 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Gimpo-siGyeonggi-do
    17.6
  2. 2IncheonIncheon
    17.3
  3. 3Ganghwa-gunIncheon
    17.2
  4. 4TangjinChungcheongnam-do
    17.0
  5. 5SeonghwanChungcheongnam-do
    15.7
  6. 6EisenGyeongsangbuk-do
    15.6
  7. 6HwadoGyeonggi-do
    15.6
  8. 8Ansan-siGyeonggi-do
    15.2
  9. 9HayangGyeongsangbuk-do
    15.1
  10. 10YesanChungcheongnam-do
    15.0
  11. 11Hwaseong-siGyeonggi-do
    14.8
  12. 12JeongeupJeollabuk-do
    14.5
  13. 13GunsanJeollabuk-do
    14.4
  14. 13KimjeJeollabuk-do
    14.4
  15. 15BuanJeollabuk-do
    14.3
  16. 16PyeongtaekGyeonggi-do
    14.2
  17. 16Icheon-siGyeonggi-do
    14.2
  18. 18UlsanUlsan
    14.1
  19. 18GoseongGyeongsangnam-do
    14.1
  20. 18HongseongChungcheongnam-do
    14.1
  21. 21AsanChungcheongnam-do
    14.0
  22. 22GumiGyeongsangbuk-do
    13.8
  23. 22HanamGyeonggi-do
    13.8
  24. 24SantyokuGangwon-do
    13.7
  25. 25Donghae CityGangwon-do
    13.5
  26. 26WŏnjuGangwon-do
    13.4
  27. 26OsanGyeonggi-do
    13.4
  28. 28SuwonGyeonggi-do
    13.2
  29. 28Guri-siGyeonggi-do
    13.2
  30. 28JangheungJeollanam-do
    13.2
  31. 28ChangnyeongGyeongsangnam-do
    13.2
  32. 32IksanJeollabuk-do
    13.1
  33. 32HwawŏnDaegu
    13.1
  34. 34BoryeongChungcheongnam-do
    13.0
  35. 34SeoulSeoul
    13.0
  36. 34Bucheon-siGyeonggi-do
    13.0
  37. 34SinhyeonGyeongsangnam-do
    13.0
  38. 34SejongSejong-si
    13.0
  39. 39YeonggwangJeollanam-do
    12.9
  40. 39MiryangGyeongsangnam-do
    12.9
  41. 39Goyang-siGyeonggi-do
    12.9
  42. 42SeosanChungcheongnam-do
    12.8
  43. 43Uijeongbu-siGyeonggi-do
    12.7
  44. 43BuyeoChungcheongnam-do
    12.7
  45. 45GwangmyeongGyeonggi-do
    12.6
  46. 46WanjuJeollabuk-do
    12.5
  47. 46Chinch'ŏnNorth Chungcheong
    12.5
  48. 46ChangwonGyeongsangnam-do
    12.5
  49. 49NonsanChungcheongnam-do
    12.4
  50. 50CheorwonGangwon-do
    12.3
  51. 50CheonanChungcheongnam-do
    12.3
  52. 52Taesal-liChungcheongnam-do
    12.2
  53. 52YŏnmuChungcheongnam-do
    12.2
  54. 54WaegwanGyeongsangbuk-do
    12.1
  55. 54NajuJeollanam-do
    12.1
  56. 56YecheonGyeongsangbuk-do
    12.0
  57. 56GwangyangJeollanam-do
    12.0
  58. 56NaesŏGyeongsangnam-do
    12.0
  59. 59BusanBusan
    11.9
  60. 59JungpyongNorth Chungcheong
    11.9
  61. 59YeongamJeollanam-do
    11.9
  62. 62MokpoJeollanam-do
    11.7
  63. 62GwangjuGyeonggi-do
    11.7
  64. 62ChinjuGyeongsangnam-do
    11.7
  65. 65YangsanGyeongsangnam-do
    11.6
  66. 65PohangGyeongsangbuk-do
    11.6
  67. 65NangenJeollabuk-do
    11.6
  68. 65Anyang-siGyeonggi-do
    11.6
  69. 69ChangsuJeollabuk-do
    11.5
  70. 69NamyangjuGyeonggi-do
    11.5
  71. 71DaeguDaegu
    11.4
  72. 71SinanJeollanam-do
    11.4
  73. 71HadongGyeongsangnam-do
    11.4
  74. 74HwasunJeollanam-do
    11.3
  75. 74UngsangGyeongsangnam-do
    11.3
  76. 76KwangyangJeollanam-do
    11.2
  77. 76KinzanChungcheongnam-do
    11.2
  78. 76Jeju CityJeju-do
    11.2
  79. 79YeongdongNorth Chungcheong
    11.1
  80. 79SokchoGangwon-do
    11.1
  81. 79Seongnam-siGyeonggi-do
    11.1
  82. 82BeolgyoJeollanam-do
    11.0
  83. 82NamsaJeollabuk-do
    11.0
  84. 82MasanGwangju
    11.0
  85. 82BoseongJeollanam-do
    11.0
  86. 86TongyeongGyeongsangnam-do
    10.9
  87. 86JeonjuJeollabuk-do
    10.9
  88. 86YeosuJeollanam-do
    10.9
  89. 89YeonilGyeongsangbuk-do
    10.8
  90. 89Yangp'yŏngGyeonggi-do
    10.8
  91. 89GijangBusan
    10.8
  92. 89Cheongju-siNorth Chungcheong
    10.8
  93. 93MunsanGyeonggi-do
    10.7
  94. 94GimcheonGyeongsangbuk-do
    10.6
  95. 95DaejeonDaejeon
    10.5
  96. 95Gyeongsan-siGyeongsangbuk-do
    10.5
  97. 95SeogwipoJeju-do
    10.5
  98. 98YeojuGyeonggi-do
    10.4
  99. 98KoesanNorth Chungcheong
    10.4
  100. 98ChungjuNorth Chungcheong
    10.4
  101. 101MuanJeollanam-do
    10.3
  102. 101ImsilJeollabuk-do
    10.3
  103. 101GaigeturiJeju-do
    10.3
  104. 104YeongjuGyeongsangbuk-do
    10.2
  105. 104GongjuChungcheongnam-do
    10.2
  106. 104Hongch’ŏnGangwon-do
    10.2
  107. 104PubalGyeonggi-do
    10.2
  108. 108SuncheonJeollanam-do
    10.1
  109. 108JangseongJeollanam-do
    10.1
  110. 110SangjuGyeongsangbuk-do
    9.9
  111. 110GeojeGyeongsangnam-do
    9.9
  112. 112Koch'angJeollabuk-do
    9.8
  113. 113OkcheonNorth Chungcheong
    9.5
  114. 113GwangjuGwangju
    9.5
  115. 113KimhaeGyeongsangnam-do
    9.5
  116. 116Cheongsong gunGyeongsangbuk-do
    9.4
  117. 116Jinan-gunJeollabuk-do
    9.4
  118. 116AnseongGyeonggi-do
    9.4
  119. 119NeietsuGangwon-do
    9.3
  120. 119DamyangJeollanam-do
    9.3
  121. 121GyeongjuGyeongsangbuk-do
    9.1
  122. 121GangneungGangwon-do
    9.1
  123. 123KuryeJeollanam-do
    8.7
  124. 123HaenamJeollanam-do
    8.7
  125. 125KunwiGyeongsangbuk-do
    8.6
  126. 126MungyeongGyeongsangbuk-do
    8.5
  127. 127YangjuGyeonggi-do
    8.4
  128. 128AndongGyeongsangbuk-do
    8.2
  129. 129YangguGangwon-do
    8.1
  130. 130ChuncheonGangwon-do
    8.0
  131. 131JumunjinGangwon-do
    7.7
  132. 132HwacheonGangwon-do
    7.4
  133. 133KosongGangwon-do
    7.1
  134. 134WabuGyeonggi-do
    6.9
  135. 135GapyeongGyeonggi-do
    6.8
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. 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, July 2025 · South Korea now

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SmogRank, most polluted cities in South Korea, PM2.5, July 2025, smogrank.com/kr/history/2025-07 (accessed 2 Oct 2026).

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