Norristown, Pennsylvania, USA Air Quality

Monitoring Station · Norristown, United States
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
26 4am
14
30
30 7am
30
30
30 10am
30
30
37 1pm
37
37
37 4pm
57
57
7pm
10pm
1am
Station readings
26
14
CAMS model adj +3
27
27
27
27
27
27
27
27
27
34
34
34
34
54
54
PM2.53.4 µg/m³ ✓ WHO
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T07:44 UTC.