SmogRank / World / South Korea / Gyeonggi-do / 2026

Most polluted cities in Gyeonggi-do, South Korea, 2026

26 cities in Gyeonggi-do, South Korea ranked by their average PM2.5 so far (278 of 365 days); 26 above the WHO annual guideline (5.0 µg/m³). Worst: Pubal at 21.5 µg/m³, #331 of 2,745 cities in the world. Cleanest: Yangju at 14.1. 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.

← Pubal 14% 10%0
Every city in Gyeonggi-do, South Korea ranked for 2026, 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. 1Pubal
    14%
  2. 2Anseong
    14%
  3. 3Pyeongtaek
    12%
  4. 4Hwaseong-si
    12%
  5. 5Hwado
    11%
  6. 6Suwon
    11%
  7. 7Bucheon-si
    10%
  8. 8Osan
    10%
  9. 9Gwangmyeong
    10%
  10. 10Ansan-si
    10%
  11. 11Gimpo-si
    9%
  12. 12Yeoju
    9%
  13. 13Munsan
    9%
  14. 14Icheon-si
    9%
  15. 15Gapyeong
    9%
  16. 16Goyang-si
    9%
  17. 17Guri-si
    9%
  18. 18Anyang-si
    8%
  19. 19Seongnam-si
    8%
  20. 20Yangp'yŏng
    8%
  21. 21Gwangju
    8%
  22. 22Namyangju
    8%
  23. 23Wabu
    8%
  24. 24Uijeongbu-si
    7%
  25. 25Yangju
    7%
  26. 26Hanam
    7%
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

All cities in the world, 2026 · All cities in South Korea, 2026 · Gyeonggi-do now

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SmogRank, most polluted cities in Gyeonggi-do, South Korea, PM2.5, 2026 (so far), smogrank.com/kr/region/gyeonggi-do/history/2026 (accessed 6 Oct 2026).

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