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Air Quality History for Altoona, United States

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

40
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-22 34 28–42 8.3 µg/m³ 8.9 9h 3
2026-07-21 61 32–93 17.5 µg/m³ 31.2 24h 3
2026-07-20 62 33–101 17.4 µg/m³ 30.0 24h 3
2026-07-19 62 21–175 19.9 µg/m³ 21.6 24h 3
2026-07-18 135 72–363 62.8 µg/m³ 100.5 24h 3
2026-07-17 146 85–226 68.6 µg/m³ 172.5 24h 3
2026-07-16 86 21–187 33.2 µg/m³ 56.7 24h 3
2026-07-15 54 29–95 14.5 µg/m³ 15.3 24h 3
2026-07-14 34 20–49 8.2 µg/m³ 10.5 24h 3
2026-07-13 34 20–55 8.2 µg/m³ 8.7 24h 3
2026-07-12 30 16–40 7.3 µg/m³ 7.1 24h 3
2026-07-11 26 16–46 6.3 µg/m³ 5.3 24h 3
2026-07-10 40 19–71 9.9 µg/m³ 14.3 24h 3
2026-07-09 31 20–43 7.5 µg/m³ 8.8 24h 3
2026-07-08 27 13–41 6.4 µg/m³ 6.8 15h 2
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