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Air Quality History for Merrillville, United States

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

30
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 214 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-09-05 46 23–56 11.4 µg/m³ 15h 214
2026-09-04 47 30–54 11.2 µg/m³ 24h 215
2026-09-03 46 31–58 11.4 µg/m³ 24h 214
2026-09-02 57 54–59 14.7 µg/m³ 24h 213
2026-09-01 57 41–62 14.9 µg/m³ 24h 204
2026-08-31 54 48–59 13.7 µg/m³ 24h 213
2026-08-30 48 42–57 11.6 µg/m³ 24h 213
2026-08-29 57 45–69 15.5 µg/m³ 24h 213
2026-08-28 47 37–55 11.6 µg/m³ 24h 214
2026-08-27 44 39–52 10.5 µg/m³ 24h 215
2026-08-26 45 36–55 11.1 µg/m³ 24h 215
2026-08-25 35 25–46 8.4 µg/m³ 24h 215
2026-08-24 47 23–62 12.3 µg/m³ 24h 215
2026-08-23 52 36–89 14.5 µg/m³ 24h 215
2026-08-22 38 38–39 9.2 µg/m³ 6h 215
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