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Air Quality History for Placentia, United States

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

24
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 31 17–37 7.5 µg/m³ 4.6 7h 99
2026-06-08 37 33–44 8.9 µg/m³ 6.2 24h 134
2026-06-07 36 35–39 8.7 µg/m³ 6.0 24h 136
2026-06-06 50 41–55 12.1 µg/m³ 10.7 24h 132
2026-06-05 63 53–73 17.8 µg/m³ 18.8 24h 138
2026-06-04 55 44–65 14.4 µg/m³ 13.3 24h 137
2026-06-03 51 34–65 13.2 µg/m³ 10.3 24h 137
2026-06-02 53 44–60 13.6 µg/m³ 10.5 24h 138
2026-06-01 46 28–58 11.2 µg/m³ 8.0 24h 122
2026-05-31 40 25–53 9.7 µg/m³ 6.1 24h 136
2026-05-30 22 15–29 5.2 µg/m³ 2.1 24h 137
2026-05-29 17 15–20 4.1 µg/m³ 0.7 24h 138
2026-05-28 19 17–26 4.6 µg/m³ 0.9 24h 126
2026-05-27 22 20–24 5.2 µg/m³ 1.5 24h 138
2026-05-26 24 23–27 5.7 µg/m³ 2.9 24h 138
2026-05-25 28 25–35 6.7 µg/m³ 3.7 24h 137
2026-05-24 39 33–43 9.3 µg/m³ 8.2 24h 139
2026-05-23 48 41–52 11.5 µg/m³ 9.0 24h 137
2026-05-22 51 36–59 12.6 µg/m³ 9.3 24h 132
2026-05-21 50 44–57 12.2 µg/m³ 9.3 24h 138
2026-05-20 71 56–82 21.4 µg/m³ 18.5 16h 138
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