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Air Quality History for Mountain View, United States

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

17
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 100 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-20 20 17–47 4.9 µg/m³ 5.4 20h 88
2026-10-19 23 20–28 5.5 µg/m³ 11.7 24h 102
2026-10-18 34 29–39 8.1 µg/m³ 20.3 24h 95
2026-10-17 29 23–33 7.0 µg/m³ 12.8 24h 104
2026-10-16 31 22–40 7.3 µg/m³ 12.3 24h 100
2026-10-15 29 25–35 6.9 µg/m³ 12.3 24h 108
2026-10-14 24 19–29 5.8 µg/m³ 11.2 24h 108
2026-10-13 24 18–30 5.9 µg/m³ 12.1 24h 108
2026-10-12 25 23–28 6.0 µg/m³ 10.5 24h 108
2026-10-11 28 25–31 6.7 µg/m³ 14.5 24h 108
2026-10-10 30 24–45 7.1 µg/m³ 14.3 24h 95
2026-10-09 37 30–51 8.9 µg/m³ 19.9 24h 100
2026-10-08 28 25–35 6.9 µg/m³ 11.5 24h 108
2026-10-07 26 23–31 6.3 µg/m³ 12.7 24h 104
2026-10-06 31 29–38 7.5 µg/m³ 13.2 24h 105
2026-10-05 31 28–34 7.4 µg/m³ 8.5 24h 109
2026-10-04 35 23–42 8.5 µg/m³ 4.2 24h 99
2026-10-03 37 28–50 8.9 µg/m³ 7.6 24h 104
2026-10-02 36 25–53 8.7 µg/m³ 6.9 24h 107
2026-10-01 26 20–35 6.2 µg/m³ 2.2 24h 107
2026-09-30 29 28–30 7.1 µg/m³ 2.7 2h 108
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