Gridley ES (4295) Air Quality

Monitoring Station · Sylmar, United States
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
40 2am
39
46
46 5am
46
46
46 8am
46
58
58 11am
58
58
58 2pm
46
46
— 5pm
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—
— 8pm
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— 11pm
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Station readings
40
39
CAMS model adj -8
54
54
54
54
54
54
54
54
66
66
66
66
66
54
54

Air Quality Forecast (24h)

PM2.59.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

46
Harding ES (4431)
1.1 km PM2.5: 11.1 µg/m³
43
Dyer ES (3493)
1.7 km PM2.5: 10.4 µg/m³
38
Sylmar Public Library - Outside
2.0 km PM2.5: 9.1 µg/m³
25
Sylmar Public Library - Inside
2.2 km PM2.5: 6.0 µg/m³
38
San Fernando MS (8358)
2.4 km PM2.5: 9.1 µg/m³
41
Herrick Ave ES (4515)
3.5 km PM2.5: 9.8 µg/m³
42
North Valley Occupational Ctr (9329)
3.8 km PM2.5: 10.0 µg/m³
43
Maclay MS (8228)
4.1 km PM2.5: 10.4 µg/m³

Nearby Cities

37 Sylmar 38 San Fernando 40 North Hills 28 Sunland 37 Northridge 36 Van Nuys 39 Valley Glen 35 Canyon Country 33 Tujunga

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T05:46 UTC.