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Air Quality History for Toronto, Canada

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

32
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

180h

PM2.5 Station

180h · 6 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 91 8–127 31.9 µg/m³ 23h 1
2026-07-20 36 1–120 10.8 µg/m³ 16h 1
2026-07-19 43 12–160 15.4 µg/m³ 7h 3
2026-07-18 114 37–178 60.4 µg/m³ 4h 6
2026-07-17 75 1–121 25.1 µg/m³ 15h 1
2026-07-16 107 71–151 37.5 µg/m³ 24h 1
2026-07-15 66 11–114 21.8 µg/m³ 18h 1
2026-07-14 58 56–60 15.4 µg/m³ 3h 6
2026-07-13 68 56–85 20.1 µg/m³ 8h 6
2026-07-12 64 54–84 18.1 µg/m³ 7h 6
2026-07-11 55 48–61 14.1 µg/m³ 14h 6
2026-07-10 20 1–115 4.8 µg/m³ 17h 2
2026-07-09 42 11–57 10.3 µg/m³ 13h 5
2026-07-08 27 18–38 6.6 µg/m³ 11h 6
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