SmogRank / World / South Korea / Gyeonggi-do / April 2025

Most polluted cities in Gyeonggi-do, South Korea, April 2025

26 cities in Gyeonggi-do, South Korea ranked by their average PM2.5 over the 30 days. Worst: Pubal at 23.9 µg/m³, #250 of 2,896 cities in the world. Cleanest: Wabu at 17.1. 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 20% 15%0
Every city in Gyeonggi-do, South Korea ranked for April 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. 1Pubal
    20%
  2. 2Osan
    13%
  3. 3Yeoju
    10%
  4. 4Pyeongtaek
    7%
  5. 5Suwon
    7%
  6. 6Anseong
    7%
  7. 7Ansan-si
    3%
  8. 8Bucheon-si
    3%
  9. 8Gimpo-si
    3%
  10. 10Hwaseong-si
    3%
  11. 11Anyang-si
    3%
  12. 12Yangp'yŏng
    3%
  13. 13Gwangmyeong
    3%
  14. 14Guri-si
    0%
  15. 15Icheon-si
    0%
  16. 16Gwangju
    0%
  17. 16Goyang-si
    0%
  18. 18Uijeongbu-si
    0%
  19. 19Hanam
    0%
  20. 20Munsan
    0%
  21. 21Seongnam-si
    0%
  22. 22Namyangju
    0%
  23. 23Gapyeong
    0%
  24. 24Yangju
    0%
  25. 25Hwado
    0%
  26. 25Wabu
    0%
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, April 2025 · All cities in South Korea, April 2025 · Gyeonggi-do now

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SmogRank, most polluted cities in Gyeonggi-do, South Korea, PM2.5, April 2025, smogrank.com/kr/region/gyeonggi-do/history/2025-04 (accessed 7 Oct 2026).

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