Herrick Ave ES (4515) Air Quality

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

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
34 11pm
42
42
42 2am
42
54
54 5am
54
54
54 8am
54
54
54 11am
54
54
— 2pm
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—
— 5pm
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—
— 8pm
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CAMS model adj -12
54
54
54
54
54
66
66
66
66
66
66
66
66
66
66

Air Quality Forecast (24h)

PM2.58.2 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

25
Sylmar Public Library - Inside
1.4 km PM2.5: 5.9 µg/m³
35
Sylmar Public Library - Outside
1.5 km PM2.5: 8.5 µg/m³
36
Dyer ES (3493)
2.3 km PM2.5: 8.6 µg/m³
35
Gridley ES (4295)
3.5 km PM2.5: 8.5 µg/m³
23
Van Gogh ES (7422)
4.0 km PM2.5: 5.6 µg/m³
24
Knollwood ES (4762)
4.2 km PM2.5: 5.7 µg/m³
28
North Valley Occupational Ctr (9329)
4.3 km PM2.5: 6.8 µg/m³
30
San Fernando MS (8358)
4.4 km PM2.5: 7.1 µg/m³

Nearby Cities

23 Sylmar 23 San Fernando 23 North Hills 23 Santa Clarita 23 Northridge 23 Canyon Country 23 Stevenson Ranch 23 Chatsworth 23 Reseda

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T02:08 UTC.