Herrick Ave ES (4515) Air Quality

Monitoring Station · Sylmar, United States
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
36 1pm
35
38
38 4pm
26
26
26 7pm
26
26
26 10pm
26
26
26 1am
26
26
— 4am
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—
— 7am
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— 10am
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Station readings
36
35
CAMS model adj -28
66
66
66
66
54
54
54
54
54
54
54
54
54
54
54

Air Quality Forecast (24h)

PM2.58.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

21
Sylmar Public Library - Inside
1.4 km PM2.5: 5.1 µg/m³
33
Sylmar Public Library - Outside
1.5 km PM2.5: 7.9 µg/m³
40
Dyer ES (3493)
2.3 km PM2.5: 9.5 µg/m³
34
Gridley ES (4295)
3.5 km PM2.5: 8.1 µg/m³
30
Van Gogh ES (7422)
4.0 km PM2.5: 7.2 µg/m³
38
Knollwood ES (4762)
4.2 km PM2.5: 9.0 µg/m³
44
North Valley Occupational Ctr (9329)
4.3 km PM2.5: 10.5 µg/m³
37
San Fernando MS (8358)
4.4 km PM2.5: 8.8 µg/m³

Nearby Cities

32 Sylmar 37 San Fernando 42 North Hills 40 Santa Clarita 41 Northridge 36 Canyon Country 38 Stevenson Ranch 33 Chatsworth 42 Reseda

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T16:40 UTC.