3312 Walnut St Air Quality
Monitoring Station
· University City, United States
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
21
12am
20
31
31
3am
31
31
31
6am
31
31
31
9am
31
31
31
12pm
38
38
—
3pm
—
—
—
6pm
—
—
—
9pm
—
—
Station readings
21
20
CAMS model
adj +4
25
25
27
27
27
27
27
27
27
27
27
27
27
34
34
Air Quality Forecast (24h)
PM2.54.7 µg/m³
✓ WHO
Good
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4110 Market St
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2100 Pine St
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1901 Walnut St
20
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21
Stinger Square Park
21
315 N 18th St
24
1401 John F Kennedy Blvd
18
1501 Point Breeze Ave
Nearby Cities
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T03:40 UTC.