Gridley ES (4295) Air Quality

Monitoring Station · Sylmar, United States
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
36 1pm
34
34
34 4pm
22
22
22 7pm
22
22
22 10pm
22
22
22 1am
22
22
— 4am
—
—
— 7am
—
—
— 10am
—
—
Station readings
36
34
CAMS model adj -32
66
66
66
66
54
54
54
54
54
54
54
54
54
54
54

Air Quality Forecast (24h)

PM2.58.1 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

30
Harding ES (4431)
1.1 km PM2.5: 7.1 µg/m³
40
Dyer ES (3493)
1.7 km PM2.5: 9.5 µg/m³
33
Sylmar Public Library - Outside
2.0 km PM2.5: 7.9 µg/m³
21
Sylmar Public Library - Inside
2.2 km PM2.5: 5.1 µg/m³
37
San Fernando MS (8358)
2.4 km PM2.5: 8.8 µg/m³
35
Herrick Ave ES (4515)
3.5 km PM2.5: 8.3 µg/m³
44
North Valley Occupational Ctr (9329)
3.8 km PM2.5: 10.5 µg/m³
44
Maclay MS (8228)
4.1 km PM2.5: 10.6 µg/m³

Nearby Cities

32 Sylmar 37 San Fernando 42 North Hills 20 Sunland 41 Northridge 31 Van Nuys 39 Valley Glen 36 Canyon Country 26 Tujunga

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T16:33 UTC.