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Air Quality History for Katsuyama, Japan

Historical PM2.5 and AQI trend from monitoring stations near Katsuyama, Japan.

16
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

306h

PM2.5 Station

306h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 40 17–65 9.8 µg/m³ 12h 2
2026-10-20 36 13–67 8.8 µg/m³ 23h 2
2026-10-19 60 15–500 31.2 µg/m³ 23h 2
2026-10-18 35 19–59 8.6 µg/m³ 24h 2
2026-10-17 40 4–97 10.3 µg/m³ 24h 2
2026-10-16 57 10–228 20.5 µg/m³ 23h 2
2026-10-15 44 17–108 11.3 µg/m³ 24h 2
2026-10-14 52 13–164 16.5 µg/m³ 18h 2
2026-10-13 47 24–75 12.2 µg/m³ 18h 2
2026-10-12 42 12–92 10.6 µg/m³ 22h 2
2026-10-11 47 10–110 13.0 µg/m³ 18h 2
2026-10-10 32 3–63 7.8 µg/m³ 22h 2
2026-10-09 41 28–59 10.0 µg/m³ 23h 2
2026-10-08 33 16–67 8.0 µg/m³ 23h 2
2026-10-07 38 21–75 9.8 µg/m³ 9h 2
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