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Air Quality History for Alliston, Canada

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

52
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

459h

PM2.5 Station

459h · 6 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 58 40–94 15.7 µg/m³ 23h 7
2026-07-20 39 18–154 10.8 µg/m³ 24h 7
2026-07-19 45 24–73 11.6 µg/m³ 24h 8
2026-07-18 77 32–131 24.8 µg/m³ 24h 8
2026-07-17 100 35–180 41.3 µg/m³ 24h 8
2026-07-16 117 64–212 51.1 µg/m³ 24h 8
2026-07-15 88 46–154 29.3 µg/m³ 24h 7
2026-07-14 47 27–101 12.4 µg/m³ 24h 6
2026-07-13 62 42–162 18.4 µg/m³ 24h 8
2026-07-12 54 31–82 14.2 µg/m³ 24h 6
2026-07-11 49 33–151 12.8 µg/m³ 24h 7
2026-07-10 33 16–52 7.8 µg/m³ 24h 6
2026-07-09 40 22–66 10.0 µg/m³ 24h 6
2026-07-08 39 17–76 9.9 µg/m³ 24h 7
2026-07-07 39 20–74 10.0 µg/m³ 24h 8
2026-07-06 41 28–58 10.1 µg/m³ 14h 6
2026-07-05 42 23–92 10.8 µg/m³ 24h 6
2026-07-04 44 29–83 11.1 µg/m³ 24h 6
2026-07-03 44 23–59 10.7 µg/m³ 24h 6
2026-07-02 51 20–89 13.8 µg/m³ 13h 6
2026-07-01 47 47–47 11.3 µg/m³ 1h 4
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