315 N 18th St Air Quality

Monitoring Station · Philadelphia, United States
51
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
51 5pm
51
32
32 8pm
32
32
32 11pm
32
32
32 2am
32
32
32 5am
32
8am
11am
2pm
Station readings
51
51
CAMS model adj +5
34
34
27
27
27
27
27
27
27
27
27
27
27
27
PM2.512.1 µg/m³ ✓ WHO
Moderate
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:03 UTC.