Gridley ES (4295) Air Quality

Monitoring Station · Sylmar, United States
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
16 11am
15
14
14 2pm
14
14
14 5pm
14
14
14 8pm
14
14
0 11pm
0
0
— 2am
—
—
— 5am
—
—
— 8am
—
—
Station readings
16
15
CAMS model adj -40
54
66
54
54
54
54
54
54
54
54
54
54
34
34
27

Air Quality Forecast (24h)

PM2.53.7 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

20
Harding ES (4431)
1.1 km PM2.5: 4.9 µg/m³
20
Dyer ES (3493)
1.7 km PM2.5: 4.9 µg/m³
17
Sylmar Public Library - Outside
2.0 km PM2.5: 4.0 µg/m³
15
Sylmar Public Library - Inside
2.2 km PM2.5: 3.7 µg/m³
17
San Fernando MS (8358)
2.4 km PM2.5: 4.1 µg/m³
18
Herrick Ave ES (4515)
3.5 km PM2.5: 4.4 µg/m³
20
North Valley Occupational Ctr (9329)
3.8 km PM2.5: 4.8 µg/m³
20
Maclay MS (8228)
4.1 km PM2.5: 4.8 µg/m³

Nearby Cities

17 Sylmar 17 San Fernando 18 North Hills 15 Sunland 19 Northridge 16 Van Nuys 18 Valley Glen 18 Canyon Country 16 Tujunga

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T14:35 UTC.