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Air Quality History for Koganei, Japan

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

26
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

425h

PM2.5 Station

425h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 9 2–29 2.0 µg/m³ 2.6 5h 1
2026-10-20 74 12–98 23.8 µg/m³ 27.1 24h 1
2026-10-19 41 1–82 12.1 µg/m³ 14.0 23h 1
2026-10-18 17 1–36 4.1 µg/m³ 4.7 23h 1
2026-10-17 33 5–66 8.0 µg/m³ 9.2 24h 1
2026-10-16 45 10–82 12.0 µg/m³ 13.5 24h 1
2026-10-15 30 2–62 7.4 µg/m³ 9.0 23h 1
2026-10-14 51 4–89 15.9 µg/m³ 17.8 15h 1
2026-10-13 64 19–89 19.5 µg/m³ 21.5 24h 1
2026-10-12 62 15–92 18.4 µg/m³ 20.7 24h 1
2026-10-11 47 21–96 13.0 µg/m³ 15.1 24h 1
2026-10-10 47 10–97 13.7 µg/m³ 15.3 24h 1
2026-10-09 56 26–97 15.9 µg/m³ 17.7 24h 1
2026-10-08 34 7–73 9.2 µg/m³ 10.4 24h 1
2026-10-07 12 1–34 2.8 µg/m³ 3.5 16h 1
2026-10-06 13 4–27 2.7 µg/m³ 3.5 9h 1
2026-10-05 19 1–51 4.6 µg/m³ 5.5 23h 1
2026-10-04 21 4–57 5.2 µg/m³ 6.4 21h 1
2026-10-03 12 1–28 2.8 µg/m³ 3.6 21h 1
2026-10-02 13 2–41 3.1 µg/m³ 3.9 22h 1
2026-10-01 40 16–72 10.3 µg/m³ 12.0 8h 1
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