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Air Quality History for Portage, United States

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

33
Current AQI
Good Station

Air Quality Index Station

477h

PM2.5 Station

477h · 252 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-09-05 43 22–55 10.8 µg/m³ 9.7 16h 251
2026-09-04 45 28–54 10.9 µg/m³ 1.3 24h 250
2026-09-03 46 30–58 11.3 µg/m³ 1.7 24h 251
2026-09-02 56 54–59 14.6 µg/m³ 2.2 24h 250
2026-09-01 57 45–62 14.9 µg/m³ 3.2 24h 240
2026-08-31 54 47–59 13.7 µg/m³ 3.3 24h 250
2026-08-30 48 42–57 11.6 µg/m³ 2.2 24h 250
2026-08-29 57 45–68 15.3 µg/m³ 2.2 24h 251
2026-08-28 46 37–55 11.4 µg/m³ 2.3 24h 251
2026-08-27 43 39–52 10.4 µg/m³ 2.3 24h 252
2026-08-26 45 35–55 11.1 µg/m³ 2.7 24h 254
2026-08-25 35 25–46 8.3 µg/m³ 6.1 24h 254
2026-08-24 46 23–61 12.0 µg/m³ 2.7 24h 254
2026-08-23 52 36–89 14.4 µg/m³ 3.7 24h 254
2026-08-22 43 36–54 10.3 µg/m³ 1.9 24h 247
2026-08-21 55 45–61 14.3 µg/m³ 1.9 24h 247
2026-08-20 44 31–55 10.8 µg/m³ 24h 244
2026-08-19 32 19–48 7.7 µg/m³ 1.5 24h 236
2026-08-18 30 20–34 7.2 µg/m³ 1.1 24h 226
2026-08-17 24 17–36 5.6 µg/m³ 2.8 24h 236
2026-08-16 31 30–32 7.6 µg/m³ 2.3 5h 247
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