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Air Quality History for Bolton, Canada

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

34
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

179h

PM2.5 Station

179h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-21 36 34–37 8.4 µg/m³ 2h 2
2026-07-20 36 18–69 9.5 µg/m³ 6h 3
2026-07-19 64 26–159 23.7 µg/m³ 4h 3
2026-07-18 114 29–183 58.0 µg/m³ 4h 3
2026-07-17 153 152–154 59.3 µg/m³ 2h 3
2026-07-14 54 46–59 13.9 µg/m³ 3h 3
2026-07-13 73 53–78 22.6 µg/m³ 8h 3
2026-07-12 64 53–74 18.2 µg/m³ 7h 3
2026-07-11 51 42–60 12.5 µg/m³ 14h 3
2026-07-10 23 14–36 5.5 µg/m³ 15h 3
2026-07-09 40 30–52 9.5 µg/m³ 13h 3
2026-07-08 27 11–43 6.5 µg/m³ 11h 3
2026-07-07 33 27–38 7.9 µg/m³ 6h 3
2026-07-06 41 28–48 9.8 µg/m³ 7h 3
2026-07-05 39 33–45 9.3 µg/m³ 20h 3
2026-07-04 30 22–37 7.2 µg/m³ 24h 3
2026-07-03 41 35–51 9.9 µg/m³ 24h 3
2026-07-02 59 42–67 16.2 µg/m³ 9h 3
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