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Air Quality History for Katsuyama, Japan

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

8
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

437h

PM2.5 Station

437h · 5 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 31 17–49 7.4 µg/m³ 13h 3
2026-10-20 41 20–67 10.1 µg/m³ 24h 3
2026-10-19 40 15–70 10.0 µg/m³ 24h 3
2026-10-18 33 13–59 8.1 µg/m³ 23h 3
2026-10-17 42 15–60 10.3 µg/m³ 24h 3
2026-10-16 47 10–144 12.2 µg/m³ 21h 3
2026-10-15 35 14–69 8.7 µg/m³ 23h 3
2026-10-14 36 13–57 8.6 µg/m³ 20h 3
2026-10-13 48 30–114 12.4 µg/m³ 20h 2
2026-10-12 36 4–57 8.8 µg/m³ 24h 3
2026-10-11 39 20–70 9.6 µg/m³ 14h 3
2026-10-10 35 16–55 8.4 µg/m³ 22h 3
2026-10-09 43 6–71 10.7 µg/m³ 23h 2
2026-10-08 30 8–59 7.2 µg/m³ 23h 3
2026-10-07 34 10–77 8.7 µg/m³ 22h 3
2026-10-06 37 3–61 9.0 µg/m³ 22h 3
2026-10-05 32 15–58 7.7 µg/m³ 23h 3
2026-10-04 34 11–66 8.5 µg/m³ 21h 3
2026-10-03 34 6–56 8.4 µg/m³ 22h 3
2026-10-02 34 14–53 8.1 µg/m³ 22h 3
2026-10-01 86 22–400 60.6 µg/m³ 7h 3
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