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Air Quality History for Osan, South Korea

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

44
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 92 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 41 30–52 9.8 µg/m³ 8h 70
2026-10-20 41 25–52 9.8 µg/m³ 24h 77
2026-10-19 35 20–46 8.3 µg/m³ 24h 86
2026-10-18 37 15–57 8.9 µg/m³ 24h 75
2026-10-17 43 21–60 10.6 µg/m³ 24h 74
2026-10-16 49 15–64 12.7 µg/m³ 24h 79
2026-10-15 38 29–55 9.2 µg/m³ 24h 80
2026-10-14 32 20–52 7.8 µg/m³ 24h 79
2026-10-13 48 29–69 12.4 µg/m³ 24h 82
2026-10-12 50 24–77 13.1 µg/m³ 24h 72
2026-10-11 54 31–66 14.2 µg/m³ 24h 97
2026-10-10 60 23–71 16.9 µg/m³ 24h 86
2026-10-09 60 29–78 16.9 µg/m³ 24h 86
2026-10-08 53 28–65 13.7 µg/m³ 24h 89
2026-10-07 47 33–53 11.3 µg/m³ 13h 90
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