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Air Quality History for Thunder Bay, Canada

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

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

Air Quality Index Station

182h

PM2.5 Station

182h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-08-08 28 25–30 6.6 µg/m³ 2h 1
2026-08-07 30 21–42 7.2 µg/m³ 17h 1
2026-08-06 32 25–42 7.8 µg/m³ 10h 1
2026-08-05 17 4–26 4.1 µg/m³ 6h 1
2026-08-04 30 15–50 7.3 µg/m³ 15h 1
2026-08-03 31 25–38 7.4 µg/m³ 9h 1
2026-08-02 34 21–46 8.0 µg/m³ 2h 1
2026-08-01 70 70–70 21.1 µg/m³ 2h 1
2026-07-31 57 38–70 15.7 µg/m³ 16h 1
2026-07-30 52 42–59 13.0 µg/m³ 7h 1
2026-07-29 42 30–53 10.1 µg/m³ 2h 1
2026-07-28 42 42–42 10.1 µg/m³ 1h 1
2026-07-27 46 38–53 11.1 µg/m³ 8h 1
2026-07-26 39 25–50 9.5 µg/m³ 5h 1
2026-07-25 50 18–55 12.5 µg/m³ 10h 1
2026-07-24 56 42–74 14.8 µg/m³ 20h 1
2026-07-23 61 25–102 18.6 µg/m³ 18h 1
2026-07-22 18 3–26 4.3 µg/m³ 20h 1
2026-07-21 25 25–26 6.1 µg/m³ 3h 1
2026-07-20 120 57–168 50.5 µg/m³ 6h 1
2026-07-19 186 163–198 122.6 µg/m³ 3h 1
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