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

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

26 cities in Gyeonggi-do, South Korea ranked by their average PM2.5 over the 31 days. Worst: Pubal at 36.2 µg/m³, #180 of 2,947 cities in the world. Cleanest: Gapyeong at 27.0. 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 58% 50%0
Every city in Gyeonggi-do, South Korea ranked for March 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
    58%
  2. 2Pyeongtaek
    58%
  3. 3Anseong
    55%
  4. 4Hwaseong-si
    48%
  5. 5Suwon
    48%
  6. 6Bucheon-si
    45%
  7. 7Ansan-si
    45%
  8. 8Osan
    45%
  9. 9Yeoju
    42%
  10. 10Gwangmyeong
    42%
  11. 11Hwado
    39%
  12. 12Guri-si
    39%
  13. 13Gimpo-si
    35%
  14. 14Goyang-si
    35%
  15. 15Munsan
    35%
  16. 16Icheon-si
    32%
  17. 16Anyang-si
    32%
  18. 18Namyangju
    32%
  19. 19Yangp'yŏng
    32%
  20. 20Gwangju
    29%
  21. 21Seongnam-si
    29%
  22. 22Hanam
    26%
  23. 23Wabu
    26%
  24. 24Yangju
    26%
  25. 25Gapyeong
    26%
  26. 26Uijeongbu-si
    23%
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, March 2026 · All cities in South Korea, March 2026 · Gyeonggi-do now

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SmogRank, most polluted cities in Gyeonggi-do, South Korea, PM2.5, March 2026, smogrank.com/kr/region/gyeonggi-do/history/2026-03 (accessed 7 Oct 2026).

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