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Air Quality History for Alliston, Canada

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

25
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-09-05 35 20–87 9.3 µg/m³ 21h 6
2026-09-04 46 19–128 12.1 µg/m³ 24h 8
2026-09-03 56 24–331 22.7 µg/m³ 24h 7
2026-09-02 40 23–56 9.7 µg/m³ 24h 8
2026-09-01 50 35–98 13.0 µg/m³ 24h 8
2026-08-31 39 21–155 10.5 µg/m³ 24h 8
2026-08-30 45 26–121 11.8 µg/m³ 24h 7
2026-08-29 42 18–68 10.4 µg/m³ 24h 7
2026-08-28 38 24–58 9.3 µg/m³ 24h 8
2026-08-27 45 29–72 11.2 µg/m³ 24h 7
2026-08-26 54 24–113 14.9 µg/m³ 24h 7
2026-08-25 41 18–139 11.0 µg/m³ 24h 8
2026-08-24 38 17–66 9.5 µg/m³ 24h 7
2026-08-23 51 26–113 14.0 µg/m³ 24h 7
2026-08-22 65 24–210 25.1 µg/m³ 24h 7
2026-08-21 49 19–173 15.0 µg/m³ 24h 7
2026-08-20 49 21–144 13.5 µg/m³ 24h 7
2026-08-19 56 28–155 15.7 µg/m³ 24h 6
2026-08-18 56 18–155 16.3 µg/m³ 24h 8
2026-08-17 45 21–85 11.9 µg/m³ 24h 8
2026-08-16 37 37–37 8.8 µg/m³ 1h 8
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