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Air Quality History for Le Plateau-Mont-Royal, Canada

Historical PM2.5 and AQI trend from monitoring stations near Le Plateau-Mont-Royal, Canada.

40
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

424h

PM2.5 Station

424h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 124 124–124 44.9 µg/m³ 6.2 1h 3
2026-10-20 15 2–52 3.6 µg/m³ 1.1 23h 3
2026-10-19 12 3–24 2.9 µg/m³ 0.5 24h 3
2026-10-18 8 2–29 1.8 µg/m³ 0.5 24h 2
2026-10-17 4 3–6 1.0 µg/m³ 2.5 6h 1
2026-10-16 20 3–48 4.9 µg/m³ 1.9 23h 2
2026-10-15 9 1–37 2.2 µg/m³ 1.3 22h 2
2026-10-14 12 2–44 2.9 µg/m³ 1.0 24h 2
2026-10-13 10 1–35 2.3 µg/m³ 1.6 23h 2
2026-10-12 24 4–54 5.7 µg/m³ 1.8 24h 3
2026-10-11 18 7–50 4.4 µg/m³ 1.3 24h 2
2026-10-10 6 2–24 1.5 µg/m³ 1.3 20h 2
2026-10-09 8 1–37 1.9 µg/m³ 1.2 22h 2
2026-10-08 28 4–66 6.8 µg/m³ 1.6 24h 2
2026-10-07 9 1–43 2.1 µg/m³ 0.6 23h 3
2026-10-06 3 1–4 0.7 µg/m³ 0.6 10h 1
2026-10-05 14 2–45 3.3 µg/m³ 1.4 20h 2
2026-10-04 25 6–55 6.0 µg/m³ 2.7 24h 3
2026-10-03 18 2–77 4.4 µg/m³ 2.1 17h 2
2026-10-02 44 6–94 13.1 µg/m³ 3.2 24h 2
2026-10-01 47 22–77 12.1 µg/m³ 3.2 22h 3
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