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Air Quality History for Katori-shi, Japan

Historical PM2.5 and AQI trend from monitoring stations near Katori-shi, Japan.

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

Air Quality Index Station

478h

PM2.5 Station

478h · 27 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 34 28–42 8.2 µg/m³ 11h 27
2026-10-20 37 25–61 8.9 µg/m³ 24h 24
2026-10-19 41 30–61 9.9 µg/m³ 24h 24
2026-10-18 33 23–40 7.9 µg/m³ 24h 27
2026-10-17 40 32–51 9.7 µg/m³ 24h 23
2026-10-16 48 26–77 12.3 µg/m³ 24h 21
2026-10-15 39 25–144 10.2 µg/m³ 24h 22
2026-10-14 47 25–141 12.6 µg/m³ 24h 21
2026-10-13 46 32–66 11.3 µg/m³ 24h 21
2026-10-12 42 30–65 10.3 µg/m³ 24h 22
2026-10-11 44 30–70 10.9 µg/m³ 24h 19
2026-10-10 36 26–52 8.8 µg/m³ 24h 22
2026-10-09 44 26–90 11.1 µg/m³ 24h 21
2026-10-08 32 19–44 7.7 µg/m³ 24h 25
2026-10-07 37 26–54 8.9 µg/m³ 24h 25
2026-10-06 39 23–56 9.4 µg/m³ 24h 25
2026-10-05 37 26–47 8.8 µg/m³ 24h 25
2026-10-04 43 28–157 11.5 µg/m³ 24h 24
2026-10-03 35 27–42 8.5 µg/m³ 24h 26
2026-10-02 38 29–52 9.2 µg/m³ 24h 25
2026-10-01 42 30–100 11.1 µg/m³ 11h 27
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