Air Quality History for Chiyoda, Japan
Historical PM2.5 and AQI trend from monitoring stations near Chiyoda, Japan.
32
Current AQI
Good Station
Good Station
Air Quality Index Station
401hPM2.5 Station
401h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-05-29 | 8 | 1–18 | 2.0 µg/m³ | 2.6 | 13h | 1 |
| 2026-05-28 | 24 | 2–51 | 5.6 µg/m³ | 7.2 | 13h | 1 |
| 2026-05-27 | 19 | 4–55 | 4.7 µg/m³ | 5.6 | 17h | 1 |
| 2026-05-26 | 13 | 1–63 | 3.4 µg/m³ | 4.4 | 16h | 1 |
| 2026-05-25 | 11 | 3–39 | 2.7 µg/m³ | 3.2 | 13h | 1 |
| 2026-05-24 | 32 | 6–68 | 8.3 µg/m³ | 9.4 | 22h | 1 |
| 2026-05-23 | 37 | 10–66 | 9.6 µg/m³ | 11.9 | 24h | 1 |
| 2026-05-22 | 47 | 2–96 | 14.5 µg/m³ | 17.2 | 17h | 1 |
| 2026-05-21 | 26 | 5–60 | 6.2 µg/m³ | 6.9 | 20h | 1 |
| 2026-05-20 | 32 | 4–72 | 8.5 µg/m³ | 9.3 | 14h | 1 |
| 2026-05-19 | 51 | 13–91 | 14.8 µg/m³ | 16.3 | 24h | 1 |
| 2026-05-18 | 75 | 37–103 | 23.5 µg/m³ | 26.3 | 24h | 1 |
| 2026-05-17 | 81 | 44–107 | 26.4 µg/m³ | 29.6 | 24h | 1 |
| 2026-05-16 | 85 | 68–104 | 28.4 µg/m³ | 31.9 | 24h | 1 |
| 2026-05-15 | 91 | 73–120 | 31.1 µg/m³ | 35.8 | 24h | 1 |
| 2026-05-14 | 78 | 55–110 | 25.0 µg/m³ | 27.8 | 24h | 1 |
| 2026-05-13 | 44 | 1–80 | 11.9 µg/m³ | 13.3 | 24h | 1 |
| 2026-05-12 | 17 | 4–34 | 4.1 µg/m³ | 4.7 | 21h | 1 |
| 2026-05-11 | 11 | 2–26 | 2.6 µg/m³ | 3.1 | 18h | 1 |
| 2026-05-10 | 15 | 3–30 | 3.6 µg/m³ | 4.2 | 24h | 1 |
| 2026-05-09 | 14 | 14–14 | 3.3 µg/m³ | 3.8 | 1h | 1 |