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Air Quality History for Richland, United States

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

37
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 6 stations

Temperature GFS model

79pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-29 17 9–41 4.0 µg/m³ 24h 6
2026-05-28 22 12–38 5.2 µg/m³ 24h 6
2026-05-27 14 10–21 3.4 µg/m³ 24h 6
2026-05-26 11 6–18 2.5 µg/m³ 24h 6
2026-05-25 16 13–20 3.9 µg/m³ 24h 7
2026-05-24 20 14–28 4.8 µg/m³ 24h 6
2026-05-23 19 11–30 4.6 µg/m³ 24h 6
2026-05-22 14 5–24 3.4 µg/m³ 24h 6
2026-05-21 15 8–26 3.6 µg/m³ 24h 7
2026-05-20 11 8–17 2.7 µg/m³ 24h 6
2026-05-19 13 10–17 3.2 µg/m³ 24h 6
2026-05-18 12 7–17 3.0 µg/m³ 24h 6
2026-05-17 8 4–12 1.9 µg/m³ 24h 6
2026-05-16 9 6–17 2.1 µg/m³ 24h 5
2026-05-15 9 6–15 2.2 µg/m³ 24h 6
2026-05-14 10 5–15 2.3 µg/m³ 24h 5
2026-05-13 18 8–29 4.4 µg/m³ 24h 5
2026-05-12 19 12–24 4.5 µg/m³ 24h 6
2026-05-11 16 11–21 3.8 µg/m³ 24h 5
2026-05-10 19 9–32 4.6 µg/m³ 23h 6
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