N 9th St Air Quality

Monitoring Station · Center City, United States
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
45 5pm
46
48
31 8pm
31
31
31 11pm
31
31
31 2am
31
31
31 5am
31
31
— 8am
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— 11am
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— 2pm
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Station readings
45
46
48
CAMS model adj +4
34
34
27
27
27
27
27
27
27
27
27
27
27
27
27

Air Quality Forecast (24h)

PM2.511.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

53
1401 John F Kennedy Blvd
0.9 km PM2.5: 13.1 µg/m³
48
807 Lombard St
1.1 km PM2.5: 11.6 µg/m³
52
315 N 18th St
1.4 km PM2.5: 12.6 µg/m³
48
1358 Ridge Ave, Philadelphia, PA 19123
1.4 km PM2.5: 11.5 µg/m³
46
1901 Walnut St
1.6 km PM2.5: 11.1 µg/m³
52
2100 Pine St
2.0 km PM2.5: 12.7 µg/m³
67
Annin Street, Philadlephia
2.1 km PM2.5: 19.6 µg/m³
48
S Christopher Columbus Blvd
2.1 km PM2.5: 11.4 µg/m³

Nearby Cities

50 Center City 53 Philadelphia 48 Rittenhouse 49 Fishtown 52 Pennsport 52 Wharton 49 Point Breeze 52 University City 50 Hartranft

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:51 UTC.