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Air Quality History for Châteauguay, Canada

Historical PM2.5 and AQI trend from monitoring stations near Châteauguay, Canada.

31
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

408h

PM2.5 Station

408h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-05-30 10 4–13 2.5 µg/m³ 2.2 4h 2
2026-05-29 24 3–75 6.7 µg/m³ 6.9 24h 2
2026-05-28 13 2–70 3.3 µg/m³ 5.2 20h 1
2026-05-27 12 3–38 2.7 µg/m³ 1.7 19h 2
2026-05-26 28 6–51 6.7 µg/m³ 4.7 24h 2
2026-05-25 14 2–33 3.2 µg/m³ 2.4 15h 2
2026-05-24 19 3–88 5.1 µg/m³ 4.8 24h 2
2026-05-23 26 3–107 7.0 µg/m³ 6.6 24h 2
2026-05-22 10 1–43 2.4 µg/m³ 2.4 22h 2
2026-05-21 11 1–40 2.6 µg/m³ 3.0 13h 1
2026-05-20 26 2–47 6.3 µg/m³ 4.5 18h 2
2026-05-19 51 8–121 14.6 µg/m³ 9.0 24h 2
2026-05-18 17 1–54 4.1 µg/m³ 4.7 19h 2
2026-05-17 36 1–87 9.2 µg/m³ 8.1 21h 2
2026-05-16 19 3–70 4.9 µg/m³ 3.3 24h 2
2026-05-15 39 5–92 11.3 µg/m³ 6.4 24h 2
2026-05-14 46 22–75 12.2 µg/m³ 7.0 24h 2
2026-05-13 14 4–35 3.4 µg/m³ 3.1 24h 2
2026-05-12 5 2–12 1.1 µg/m³ 1.6 8h 1
2026-05-11 12 1–84 3.1 µg/m³ 9.0 16h 1
2026-05-10 23 1–122 6.7 µg/m³ 7.2 17h 2
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