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Air Quality History for Darien, United States

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

1
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

480h

PM2.5 Station

480h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 19 8–28 4.6 µg/m³ 21.2 12h 18
2026-06-08 22 15–34 5.3 µg/m³ 5.3 24h 21
2026-06-07 27 17–41 6.5 µg/m³ 11.6 24h 21
2026-06-06 46 35–68 11.3 µg/m³ 17.9 24h 23
2026-06-05 38 26–52 9.1 µg/m³ 5.9 24h 24
2026-06-04 28 22–38 6.7 µg/m³ 2.3 24h 22
2026-06-03 23 18–28 5.6 µg/m³ 1.7 24h 23
2026-06-02 23 18–27 5.5 µg/m³ 2.1 24h 20
2026-06-01 23 17–31 5.5 µg/m³ 1.7 24h 21
2026-05-31 23 15–42 5.4 µg/m³ 17.8 24h 19
2026-05-30 19 9–29 4.6 µg/m³ 2.0 24h 21
2026-05-29 20 15–33 4.7 µg/m³ 1.5 24h 21
2026-05-28 22 16–35 5.3 µg/m³ 7.0 24h 21
2026-05-27 26 20–34 6.3 µg/m³ 5.1 24h 23
2026-05-26 25 16–36 6.0 µg/m³ 5.4 24h 20
2026-05-25 25 16–58 6.1 µg/m³ 16.9 24h 18
2026-05-24 19 11–31 4.5 µg/m³ 1.8 24h 17
2026-05-23 20 16–27 4.8 µg/m³ 1.2 24h 18
2026-05-22 18 13–23 4.3 µg/m³ 7.4 24h 20
2026-05-21 17 10–23 4.2 µg/m³ 3.5 24h 20
2026-05-20 26 21–30 6.2 µg/m³ 4.3 12h 24
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