Air Quality History for Waterloo, Canada
Historical PM2.5 and AQI trend from monitoring stations near Waterloo, Canada.
30
Current AQI
Good Station
Good Station
Air Quality Index Station
439hPM2.5 Station
439h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-05-30 | 10 | 4–26 | 2.5 µg/m³ | 2.5 | 16h | 1 |
| 2026-05-29 | 11 | 4–26 | 2.6 µg/m³ | 2.7 | 24h | 1 |
| 2026-05-28 | 11 | 4–24 | 2.7 µg/m³ | 2.8 | 21h | 1 |
| 2026-05-27 | 21 | 4–70 | 5.2 µg/m³ | 5.4 | 23h | 1 |
| 2026-05-26 | 20 | 4–99 | 5.3 µg/m³ | 5.6 | 21h | 1 |
| 2026-05-25 | 40 | 10–87 | 10.6 µg/m³ | 11.2 | 24h | 1 |
| 2026-05-24 | 13 | 4–39 | 3.1 µg/m³ | 3.3 | 22h | 1 |
| 2026-05-23 | 15 | 4–43 | 3.6 µg/m³ | 3.8 | 23h | 1 |
| 2026-05-22 | 12 | 4–52 | 2.9 µg/m³ | 2.7 | 23h | 1 |
| 2026-05-21 | 9 | 4–38 | 2.2 µg/m³ | 2.2 | 19h | 1 |
| 2026-05-20 | 22 | 4–70 | 5.7 µg/m³ | 6.0 | 15h | 1 |
| 2026-05-19 | 27 | 4–55 | 6.5 µg/m³ | 6.9 | 24h | 1 |
| 2026-05-18 | 59 | 14–87 | 17.2 µg/m³ | 17.6 | 24h | 1 |
| 2026-05-17 | 66 | 25–117 | 20.3 µg/m³ | 22.3 | 24h | 1 |
| 2026-05-16 | 36 | 5–99 | 9.9 µg/m³ | 10.4 | 24h | 1 |
| 2026-05-15 | 17 | 4–65 | 4.2 µg/m³ | 4.4 | 23h | 1 |
| 2026-05-14 | 13 | 4–51 | 3.0 µg/m³ | 3.1 | 20h | 1 |
| 2026-05-13 | 31 | 4–69 | 7.8 µg/m³ | 8.2 | 24h | 1 |
| 2026-05-12 | 15 | 4–60 | 3.6 µg/m³ | 3.9 | 23h | 1 |
| 2026-05-11 | 9 | 4–50 | 2.3 µg/m³ | 2.3 | 21h | 1 |
| 2026-05-10 | 4 | 4–4 | 1.0 µg/m³ | 1.0 | 1h | 1 |