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Air Quality History for Seoul, South Korea

Historical PM2.5 and AQI trend from monitoring stations near Seoul, South Korea.

51
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 29 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 46 40–53 11.2 µg/m³ 4h 58
2026-10-20 39 23–52 9.3 µg/m³ 24h 74
2026-10-19 37 22–46 8.8 µg/m³ 24h 76
2026-10-18 35 17–55 8.5 µg/m³ 24h 75
2026-10-17 45 27–62 11.1 µg/m³ 24h 70
2026-10-16 50 25–66 13.1 µg/m³ 24h 74
2026-10-15 40 25–48 9.7 µg/m³ 24h 73
2026-10-14 34 20–58 8.2 µg/m³ 24h 67
2026-10-13 49 31–69 12.7 µg/m³ 24h 77
2026-10-12 45 17–65 11.4 µg/m³ 24h 76
2026-10-11 55 28–66 14.7 µg/m³ 24h 87
2026-10-10 58 33–70 15.9 µg/m³ 24h 81
2026-10-09 59 23–77 16.6 µg/m³ 24h 91
2026-10-08 51 18–63 13.1 µg/m³ 24h 99
2026-10-07 47 33–54 11.2 µg/m³ 18h 103
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