1901 Walnut St Air Quality

Monitoring Station · Rittenhouse, United States
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
24 4pm
22
24
24 7pm
24
24
24 10pm
24
26
33 1am
26
26
26 4am
24
24
— 7am
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—
— 10am
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— 1pm
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Station readings
24
22
CAMS model adj -1
27
27
25
25
25
25
25
25
27
34
27
27
27
25
25

Air Quality Forecast (24h)

PM2.55.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

25
2100 Pine St
0.5 km PM2.5: 6.0 µg/m³
26
1401 John F Kennedy Blvd
0.8 km PM2.5: 6.2 µg/m³
24
315 N 18th St
1.2 km PM2.5: 5.8 µg/m³
26
3312 Walnut St
1.5 km PM2.5: 6.3 µg/m³
25
N 9th St
1.6 km PM2.5: 6.1 µg/m³
24
807 Lombard St
1.7 km PM2.5: 5.8 µg/m³
21
Philly Thrive - AQ Host
1.8 km PM2.5: 5.0 µg/m³
10
Annin Street, Philadlephia
1.8 km PM2.5: 2.3 µg/m³

Nearby Cities

23 Rittenhouse 26 Philadelphia 25 Center City 25 University City 25 Point Breeze 23 Wharton 24 Pennsport 25 Lower Moyamensing 24 Fishtown

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T19:30 UTC.