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Air Quality History for Saint-Léonard, Canada

Historical PM2.5 and AQI trend from monitoring stations near Saint-Léonard, Canada.

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

Air Quality Index Station

458h

PM2.5 Station

458h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-21 59 32–86 16.7 µg/m³ 7.2 23h 2
2026-07-20 39 15–57 9.5 µg/m³ 3.5 24h 2
2026-07-19 46 9–157 15.0 µg/m³ 6.5 24h 2
2026-07-18 60 22–170 22.0 µg/m³ 9.2 24h 2
2026-07-17 18 4–35 4.3 µg/m³ 1.5 24h 2
2026-07-16 42 6–77 11.0 µg/m³ 5.0 24h 2
2026-07-15 83 17–151 27.9 µg/m³ 12.5 24h 2
2026-07-14 84 61–116 27.7 µg/m³ 11.8 24h 2
2026-07-13 86 66–105 28.8 µg/m³ 12.5 24h 2
2026-07-12 55 28–87 15.6 µg/m³ 6.6 24h 2
2026-07-11 46 29–58 11.1 µg/m³ 4.5 24h 2
2026-07-10 61 38–85 17.4 µg/m³ 6.7 24h 2
2026-07-09 41 4–79 11.6 µg/m³ 4.0 24h 2
2026-07-08 50 19–70 13.4 µg/m³ 5.3 24h 2
2026-07-07 59 37–74 16.3 µg/m³ 9.1 24h 2
2026-07-06 58 29–70 16.1 µg/m³ 11.0 13h 2
2026-07-05 38 19–55 9.2 µg/m³ 3.7 24h 2
2026-07-04 60 25–80 17.1 µg/m³ 6.8 24h 2
2026-07-03 56 34–70 14.8 µg/m³ 6.2 24h 2
2026-07-02 36 18–61 9.0 µg/m³ 3.6 13h 3
2026-07-01 74 74–74 23.0 µg/m³ 10.0 1h 2
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