Annin Street, Philadlephia Air Quality
Monitoring Station
· Wharton, United States
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
57
5pm
65
59
41
8pm
41
41
41
11pm
41
41
41
2am
41
41
41
5am
41
—
—
8am
—
—
—
11am
—
—
—
2pm
—
—
Station readings
57
65
59
CAMS model
adj +14
34
34
27
27
27
27
27
27
27
27
27
27
27
27
Air Quality Forecast (24h)
PM2.516.1 µg/m³
×1.1 WHO
Moderate
PM1017.1 µg/m³
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:05 UTC.