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Air Quality History for Tri-Cities, United States

Historical PM2.5 and AQI trend from monitoring stations near Tri-Cities, United States.

21
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-09-05 13 9–18 3.2 µg/m³ 17h 3
2026-09-04 16 7–40 3.8 µg/m³ 24h 4
2026-09-03 19 5–160 6.1 µg/m³ 24h 4
2026-09-02 29 11–53 7.0 µg/m³ 24h 4
2026-09-01 34 17–64 8.4 µg/m³ 24h 3
2026-08-31 27 10–41 6.4 µg/m³ 24h 4
2026-08-30 38 5–500 28.6 µg/m³ 24h 4
2026-08-29 50 13–296 21.2 µg/m³ 24h 4
2026-08-28 23 9–78 5.8 µg/m³ 24h 4
2026-08-27 34 14–71 8.6 µg/m³ 24h 4
2026-08-26 51 31–65 12.9 µg/m³ 24h 4
2026-08-25 58 36–72 15.8 µg/m³ 24h 4
2026-08-24 66 20–91 20.4 µg/m³ 24h 4
2026-08-23 32 6–197 11.9 µg/m³ 24h 4
2026-08-22 60 37–96 16.4 µg/m³ 24h 4
2026-08-21 55 46–63 14.3 µg/m³ 24h 4
2026-08-20 56 39–65 14.5 µg/m³ 24h 3
2026-08-19 53 29–66 13.9 µg/m³ 24h 4
2026-08-18 58 36–71 15.7 µg/m³ 23h 4
2026-08-17 60 28–88 16.8 µg/m³ 24h 4
2026-08-16 85 71–110 28.2 µg/m³ 7h 4
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