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Air Quality History for Fountain Valley, United States

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

25
Current AQI
Good CAMS model
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 129 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 23 22–24 5.5 µg/m³ 2.9 7h 133
2026-10-20 33 13–43 7.9 µg/m³ 5.8 24h 120
2026-10-19 28 21–35 6.8 µg/m³ 4.3 24h 137
2026-10-18 25 14–33 5.9 µg/m³ 3.7 24h 127
2026-10-17 24 15–31 5.7 µg/m³ 3.8 24h 136
2026-10-16 25 15–34 5.9 µg/m³ 3.8 24h 130
2026-10-15 26 17–36 6.2 µg/m³ 4.2 24h 135
2026-10-14 25 18–28 5.9 µg/m³ 3.7 24h 135
2026-10-13 22 19–25 5.4 µg/m³ 3.1 24h 135
2026-10-12 22 18–29 5.4 µg/m³ 3.6 24h 134
2026-10-11 32 28–35 7.6 µg/m³ 5.1 24h 136
2026-10-10 41 21–48 9.8 µg/m³ 6.8 24h 120
2026-10-09 40 20–48 9.5 µg/m³ 6.6 24h 126
2026-10-08 48 35–64 11.9 µg/m³ 6.3 24h 138
2026-10-07 43 16–50 10.4 µg/m³ 4.7 15h 128
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