Air Quality History for Richmond Hill, United States
Historical PM2.5 and AQI trend from monitoring stations near Richmond Hill, United States.
31
Current AQI
Good Station
Good Station
Air Quality Index Station
58hPM2.5 Station
58h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-10-20 | 12 | 12–12 | 2.8 µg/m³ | 2.8 | 1h | 1 |
| 2026-10-19 | 14 | 2–27 | 3.5 µg/m³ | 4.0 | 2h | 1 |
| 2026-10-18 | 8 | 8–8 | 2.0 µg/m³ | 2.8 | 1h | 1 |
| 2026-10-16 | 12 | 10–15 | 3.0 µg/m³ | 3.0 | 3h | 1 |
| 2026-10-15 | 35 | 11–59 | 9.3 µg/m³ | 9.7 | 2h | 1 |
| 2026-10-14 | 16 | 7–29 | 3.9 µg/m³ | 4.1 | 8h | 1 |
| 2026-10-13 | 12 | 6–25 | 2.9 µg/m³ | 2.9 | 3h | 1 |
| 2026-10-10 | 8 | 8–8 | 1.8 µg/m³ | 1.8 | 1h | 1 |
| 2026-10-09 | 7 | 4–10 | 1.6 µg/m³ | 1.7 | 3h | 1 |
| 2026-10-08 | 10 | 4–17 | 2.5 µg/m³ | 2.5 | 2h | 1 |
| 2026-10-07 | 13 | 2–34 | 3.2 µg/m³ | 3.8 | 3h | 1 |
| 2026-10-05 | 29 | 6–115 | 9.7 µg/m³ | 11.4 | 5h | 1 |
| 2026-10-04 | 4 | 4–5 | 1.1 µg/m³ | 1.1 | 2h | 1 |
| 2026-10-02 | 54 | 33–67 | 14.7 µg/m³ | 15.0 | 12h | 1 |
| 2026-10-01 | 22 | 6–48 | 5.2 µg/m³ | 5.4 | 10h | 1 |