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Air Quality History for Leominster, United States

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

46
Current AQI
Good CAMS model
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

457h

PM2.5 Station

457h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 31 31–31 7.4 µg/m³ 1h 1
2026-07-21 42 18–66 10.5 µg/m³ 24h 3
2026-07-20 54 15–273 20.2 µg/m³ 24h 4
2026-07-19 51 21–83 13.5 µg/m³ 24h 4
2026-07-18 56 23–108 16.0 µg/m³ 23h 4
2026-07-17 104 28–187 43.7 µg/m³ 24h 4
2026-07-16 82 30–194 34.4 µg/m³ 24h 4
2026-07-15 51 32–104 13.1 µg/m³ 24h 4
2026-07-14 39 29–54 9.4 µg/m³ 24h 4
2026-07-13 34 24–58 8.3 µg/m³ 24h 4
2026-07-12 36 14–56 8.6 µg/m³ 24h 4
2026-07-11 36 20–51 8.7 µg/m³ 24h 4
2026-07-10 35 23–47 8.4 µg/m³ 24h 4
2026-07-09 35 26–51 8.4 µg/m³ 24h 4
2026-07-08 35 24–55 8.3 µg/m³ 24h 5
2026-07-07 34 17–45 8.1 µg/m³ 24h 4
2026-07-06 33 21–45 8.1 µg/m³ 13h 5
2026-07-05 49 32–102 12.7 µg/m³ 24h 5
2026-07-04 41 27–58 10.0 µg/m³ 24h 5
2026-07-03 45 24–56 10.9 µg/m³ 24h 5
2026-07-02 48 32–76 12.4 µg/m³ 12h 4
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