SmogRank / World / South Korea / Gyeongsangbuk-do / March 2025

Most unhealthy days in Gyeongsangbuk-do, South Korea, March 2025

17 cities in Gyeongsangbuk-do, South Korea ranked by their share of unhealthy days over the 31 days. The most unhealthy days: Cheongsong gun, South Korea, 6 of 30 measured days. 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.

← Cheongsong gun 20% 15%0
Every city in Gyeongsangbuk-do, South Korea ranked for March 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. 1Cheongsong gun
    6 of 30
  2. 2Andong
    6 of 31
  3. 3Yeongju
    6 of 31
  4. 4Gumi
    6 of 31
  5. 5Mungyeong
    5 of 31
  6. 6Sangju
    5 of 31
  7. 7Yecheon
    4 of 31
  8. 8Gimcheon
    4 of 31
  9. 9Pohang
    2 of 31
  10. 10Waegwan
    2 of 31
  11. 11Gyeongsan-si
    2 of 31
  12. 12Dodong-ri
    2 of 31
  13. 13Yeonil
    1 of 31
  14. 14Hayang
    1 of 31
  15. 15Eisen
    1 of 31
  16. 16Gyeongju
    1 of 31
  17. 17Kunwi
    0 of 31
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 2025 · All cities in South Korea, March 2025 · Gyeongsangbuk-do now

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SmogRank, most polluted cities in Gyeongsangbuk-do, South Korea, by unhealthy days, PM2.5, March 2025, smogrank.com/kr/region/gyeongsangbuk-do/history/2025-03?by=days (accessed 7 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.