Air Quality History for Chiyoda, Japan
Historical PM2.5 and AQI trend from monitoring stations near Chiyoda, Japan.
72
Current AQI
Moderate Station
Moderate Station
Air Quality Index Station
158hPM2.5 Station
158h · 1 stationTemperature GFS model
56ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-07-21 | 69 | 10–87 | 22.3 µg/m³ | 28.9 | 5h | 1 |
| 2026-07-20 | 71 | 71–71 | 21.6 µg/m³ | 23.9 | 1h | 1 |
| 2026-07-17 | 85 | 59–97 | 28.2 µg/m³ | 30.3 | 7h | 1 |
| 2026-07-16 | 104 | 53–136 | 36.4 µg/m³ | 44.1 | 17h | 1 |
| 2026-07-15 | 63 | 27–98 | 19.7 µg/m³ | 31.1 | 5h | 1 |
| 2026-07-14 | 72 | 36–91 | 22.6 µg/m³ | 24.1 | 12h | 1 |
| 2026-07-13 | 94 | 69–143 | 32.1 µg/m³ | 37.2 | 24h | 1 |
| 2026-07-12 | 70 | 20–91 | 21.7 µg/m³ | 23.4 | 24h | 1 |
| 2026-07-11 | 26 | 2–65 | 6.8 µg/m³ | 7.6 | 22h | 1 |
| 2026-07-10 | 16 | 3–53 | 3.9 µg/m³ | 4.6 | 14h | 1 |
| 2026-07-09 | 21 | 2–33 | 5.0 µg/m³ | 5.7 | 13h | 1 |
| 2026-07-08 | 12 | 1–64 | 3.1 µg/m³ | 3.8 | 14h | 1 |