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Air Quality History for Maryland Heights, United States

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

22
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

473h

PM2.5 Station

473h · 5 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-06-09 29 15–48 7.0 µg/m³ 13h 3
2026-06-08 38 18–56 9.1 µg/m³ 24h 4
2026-06-07 40 26–50 9.5 µg/m³ 23h 4
2026-06-06 39 24–48 9.5 µg/m³ 23h 4
2026-06-05 39 26–48 9.3 µg/m³ 24h 4
2026-06-04 41 27–59 10.0 µg/m³ 24h 4
2026-06-03 34 24–41 8.1 µg/m³ 23h 4
2026-06-02 30 23–46 7.2 µg/m³ 24h 4
2026-06-01 32 25–42 7.8 µg/m³ 23h 3
2026-05-31 29 15–42 6.8 µg/m³ 24h 3
2026-05-30 38 25–56 9.1 µg/m³ 24h 3
2026-05-29 32 21–55 7.7 µg/m³ 22h 4
2026-05-28 31 12–45 7.4 µg/m³ 24h 4
2026-05-27 22 13–32 5.2 µg/m³ 24h 4
2026-05-26 30 5–42 7.3 µg/m³ 24h 3
2026-05-25 30 17–63 7.3 µg/m³ 24h 3
2026-05-24 28 16–46 6.8 µg/m³ 24h 4
2026-05-23 22 14–36 5.4 µg/m³ 24h 4
2026-05-22 21 15–32 5.1 µg/m³ 24h 4
2026-05-21 21 9–48 5.0 µg/m³ 24h 4
2026-05-20 25 8–31 6.0 µg/m³ 10h 4
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