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Air Quality History for Fitchburg, United States

Historical PM2.5 and AQI trend from monitoring stations near Fitchburg, United States.

38
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

142h

PM2.5 Station

142h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 35 31–42 8.4 µg/m³ 3h 2
2026-07-21 37 29–56 9.1 µg/m³ 4h 1
2026-07-20 108 72–130 38.2 µg/m³ 6h 2
2026-07-19 188 159–219 121.5 µg/m³ 4h 2
2026-07-18 58 20–91 17.5 µg/m³ 8h 2
2026-07-17 196 169–251 131.7 µg/m³ 4h 2
2026-07-16 174 170–179 99.6 µg/m³ 4h 2
2026-07-15 38 31–44 9.0 µg/m³ 8h 2
2026-07-14 42 38–45 10.1 µg/m³ 11h 1
2026-07-13 40 37–49 9.7 µg/m³ 19h 2
2026-07-12 40 34–45 9.7 µg/m³ 17h 2
2026-07-11 38 31–48 9.2 µg/m³ 18h 2
2026-07-10 29 24–38 7.0 µg/m³ 17h 1
2026-07-09 31 23–39 7.6 µg/m³ 9h 1
2026-07-08 39 28–43 9.4 µg/m³ 10h 2
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