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Air Quality History for Richland, United States

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

19
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 9–17 3.2 µg/m³ 18h 3
2026-09-04 14 6–30 3.3 µg/m³ 24h 4
2026-09-03 16 5–120 4.5 µg/m³ 24h 4
2026-09-02 25 10–51 5.9 µg/m³ 24h 4
2026-09-01 31 17–64 7.7 µg/m³ 24h 3
2026-08-31 23 9–39 5.6 µg/m³ 24h 4
2026-08-30 30 6–364 17.2 µg/m³ 24h 4
2026-08-29 36 12–194 13.3 µg/m³ 24h 4
2026-08-28 20 9–57 4.8 µg/m³ 24h 4
2026-08-27 30 16–62 7.3 µg/m³ 24h 4
2026-08-26 49 31–63 12.3 µg/m³ 24h 4
2026-08-25 55 33–69 14.8 µg/m³ 24h 4
2026-08-24 62 17–81 18.5 µg/m³ 24h 4
2026-08-23 28 6–172 9.0 µg/m³ 24h 4
2026-08-22 58 39–78 15.7 µg/m³ 24h 4
2026-08-21 54 45–61 13.9 µg/m³ 24h 4
2026-08-20 55 39–63 14.3 µg/m³ 24h 3
2026-08-19 54 30–64 14.1 µg/m³ 24h 4
2026-08-18 58 43–68 15.6 µg/m³ 23h 4
2026-08-17 61 39–84 16.8 µg/m³ 24h 4
2026-08-16 83 70–103 27.0 µg/m³ 6h 4
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