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Air Quality History for Koshigaya, Japan

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

45
Current AQI
Good
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Trend

391h

PM2.5 Trend

391h · 8 stations

Daily Summary

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-04-18 40 32–54 9.6 µg/m³ 14.1 11h 14
2026-04-17 37 25–46 8.9 µg/m³ 12.6 16h 13
2026-04-16 30 25–42 7.2 µg/m³ 10.1 24h 14
2026-04-15 35 24–48 8.4 µg/m³ 12.5 24h 14
2026-04-14 55 44–63 14.0 µg/m³ 21.4 24h 14
2026-04-13 51 30–59 12.7 µg/m³ 20.3 17h 12
2026-04-12 46 32–52 11.0 µg/m³ 16.2 24h 13
2026-04-11 46 28–60 11.8 µg/m³ 17.2 24h 13
2026-04-10 41 18–64 10.2 µg/m³ 17.1 24h 12
2026-04-09 31 13–41 7.5 µg/m³ 13.2 18h 11
2026-04-08 36 27–44 8.5 µg/m³ 10.0 9h 11
2026-04-07 29 7–63 7.2 µg/m³ 10.9 24h 11
2026-04-06 53 42–62 13.4 µg/m³ 19.9 18h 13
2026-04-04 39 19–59 9.8 µg/m³ 15.6 15h 12
2026-04-03 36 27–55 8.7 µg/m³ 11.9 24h 12
2026-04-02 18 6–32 4.3 µg/m³ 6.1 24h 10
2026-04-01 17 7–30 4.2 µg/m³ 5.9 23h 10
2026-03-31 26 5–41 6.2 µg/m³ 10.7 24h 11
2026-03-30 43 24–113 12.4 µg/m³ 18.6 11h 11
2026-03-29 66 59–73 19.2 µg/m³ 25.3 13h 12
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