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Air Quality History for Merrifield, United States

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

26
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 30 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 24 23–25 5.8 µg/m³ 2h 29
2026-07-21 52 26–75 14.4 µg/m³ 24h 28
2026-07-20 70 58–87 21.1 µg/m³ 24h 28
2026-07-19 73 36–288 27.7 µg/m³ 24h 30
2026-07-18 131 58–161 51.5 µg/m³ 24h 30
2026-07-17 169 60–220 101.9 µg/m³ 24h 32
2026-07-16 66 55–151 18.8 µg/m³ 24h 29
2026-07-15 51 42–69 12.7 µg/m³ 24h 30
2026-07-14 40 33–52 9.6 µg/m³ 24h 28
2026-07-13 36 23–43 8.6 µg/m³ 24h 29
2026-07-12 42 30–57 10.1 µg/m³ 24h 28
2026-07-11 42 16–53 10.1 µg/m³ 24h 22
2026-07-10 43 27–64 11.1 µg/m³ 24h 27
2026-07-09 35 25–42 8.3 µg/m³ 24h 28
2026-07-08 37 25–45 8.9 µg/m³ 21h 30
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