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Air Quality History for Chichibu, Japan

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

25
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 44 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 34 29–46 8.2 µg/m³ 11.5 12h 45
2026-10-20 44 35–79 10.8 µg/m³ 19.5 24h 42
2026-10-19 45 33–57 11.0 µg/m³ 15.4 24h 40
2026-10-18 36 26–50 8.5 µg/m³ 10.9 24h 44
2026-10-17 44 36–66 10.7 µg/m³ 12.5 24h 41
2026-10-16 51 37–73 12.9 µg/m³ 15.5 24h 37
2026-10-15 42 32–55 10.2 µg/m³ 13.9 24h 39
2026-10-14 47 26–77 12.2 µg/m³ 11.4 24h 36
2026-10-13 47 38–76 11.7 µg/m³ 15.9 24h 37
2026-10-12 44 32–92 11.0 µg/m³ 14.9 24h 38
2026-10-11 43 27–59 10.6 µg/m³ 14.6 24h 34
2026-10-10 45 30–151 12.0 µg/m³ 14.6 24h 39
2026-10-09 40 29–57 9.8 µg/m³ 16.1 24h 39
2026-10-08 34 26–58 8.3 µg/m³ 13.4 24h 42
2026-10-07 38 31–45 9.1 µg/m³ 9.0 10h 43
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