Gridley ES (4295) Air Quality

Monitoring Station · Sylmar, United States
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
37 3am
37
45
45 6am
45
45
45 9am
45
45
45 12pm
45
45
45 3pm
45
45
— 6pm
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— 9pm
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— 12am
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Station readings
37
37
CAMS model adj -21
54
66
66
66
66
66
66
66
66
66
66
66
66
66
66

Air Quality Forecast (24h)

PM2.58.9 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

45
Harding ES (4431)
1.1 km PM2.5: 10.8 µg/m³
39
Dyer ES (3493)
1.7 km PM2.5: 9.4 µg/m³
37
Sylmar Public Library - Outside
2.0 km PM2.5: 8.8 µg/m³
25
Sylmar Public Library - Inside
2.2 km PM2.5: 5.9 µg/m³
35
San Fernando MS (8358)
2.4 km PM2.5: 8.5 µg/m³
37
Herrick Ave ES (4515)
3.5 km PM2.5: 8.8 µg/m³
37
North Valley Occupational Ctr (9329)
3.8 km PM2.5: 8.8 µg/m³
43
Maclay MS (8228)
4.1 km PM2.5: 10.4 µg/m³

Nearby Cities

23 Sylmar 23 San Fernando 23 North Hills 21 Sunland 23 Northridge 23 Van Nuys 18 Valley Glen 23 Canyon Country 20 Tujunga

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T06:36 UTC.