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Air Quality History for Koesan, South Korea

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

55
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 16 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 55 45–61 14.6 µg/m³ 3h 9
2026-10-20 40 15–58 9.8 µg/m³ 24h 12
2026-10-19 37 9–55 9.0 µg/m³ 24h 21
2026-10-18 36 14–59 8.7 µg/m³ 24h 16
2026-10-17 47 23–101 12.3 µg/m³ 24h 12
2026-10-16 50 6–74 13.2 µg/m³ 24h 18
2026-10-15 40 18–177 12.3 µg/m³ 24h 14
2026-10-14 38 21–76 9.5 µg/m³ 24h 19
2026-10-13 47 20–80 12.4 µg/m³ 24h 17
2026-10-12 46 12–71 12.3 µg/m³ 24h 14
2026-10-11 53 17–67 14.4 µg/m³ 24h 25
2026-10-10 54 13–77 14.8 µg/m³ 24h 14
2026-10-09 58 19–81 16.2 µg/m³ 24h 16
2026-10-08 49 15–70 12.8 µg/m³ 24h 10
2026-10-07 44 26–57 10.6 µg/m³ 24h 11
2026-10-06 40 24–61 9.6 µg/m³ 24h 12
2026-10-05 38 25–53 9.0 µg/m³ 24h 12
2026-10-04 37 21–54 8.9 µg/m³ 24h 10
2026-10-03 33 13–51 8.0 µg/m³ 24h 11
2026-10-02 37 21–51 8.9 µg/m³ 24h 11
2026-10-01 35 16–50 8.4 µg/m³ 19h 11
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