SmogRank / World / South Korea / Jeollabuk-do / 2025

Most polluted cities in Jeollabuk-do, South Korea, 2025

13 cities in Jeollabuk-do, South Korea ranked by their average PM2.5 over the 365 days; 13 above the WHO annual guideline (5.0 µg/m³). Worst: Kimje at 18.6 µg/m³, #268 of 2,624 cities in the world. Cleanest: Koch'ang at 12.4. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

← Iksan 10% 9%0
Every city in Jeollabuk-do, South Korea ranked for 2025, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Iksan
    10%
  2. 2Gunsan
    9%
  3. 3Kimje
    8%
  4. 4Buan
    8%
  5. 5Wanju
    6%
  6. 6Namsa
    5%
  7. 7Jeongeup
    5%
  8. 8Nangen
    4%
  9. 9Changsu
    4%
  10. 10Jeonju
    4%
  11. 11Jinan-gun
    3%
  12. 12Imsil
    3%
  13. 13Koch'ang
    2%
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 Jeollabuk-do, South Korea, PM2.5, 2025, smogrank.com/kr/region/jeollabuk-do/history/2025 (accessed 7 Oct 2026).

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