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Air Quality History for Seoul, South Korea

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

52
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 47 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 42 38–47 10.1 µg/m³ 2h 64
2026-07-21 45 25–67 11.2 µg/m³ 24h 118
2026-07-20 40 29–54 9.7 µg/m³ 24h 100
2026-07-19 47 22–59 11.4 µg/m³ 24h 96
2026-07-18 46 28–59 11.4 µg/m³ 24h 89
2026-07-17 52 25–70 13.6 µg/m³ 24h 63
2026-07-16 57 41–74 15.3 µg/m³ 24h 65
2026-07-15 52 38–63 13.0 µg/m³ 24h 48
2026-07-14 38 23–59 9.3 µg/m³ 24h 52
2026-07-13 38 24–49 9.1 µg/m³ 24h 47
2026-07-12 47 25–59 11.5 µg/m³ 24h 52
2026-07-11 51 24–164 14.4 µg/m³ 24h 52
2026-07-10 45 32–55 10.9 µg/m³ 24h 49
2026-07-09 37 26–50 8.8 µg/m³ 24h 57
2026-07-08 33 15–39 7.9 µg/m³ 22h 68
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