Herrick Ave ES (4515) Air Quality

Monitoring Station · Sylmar, United States
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
30 10pm
23
24
31 1am
31
31
31 4am
31
31
31 7am
31
31
31 10am
43
43
— 1pm
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— 4pm
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— 7pm
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Station readings
30
23
24
CAMS model adj -23
54
54
54
54
54
54
54
54
54
54
54
54
54
66
66

Air Quality Forecast (24h)

PM2.55.8 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

18
Sylmar Public Library - Inside
1.4 km PM2.5: 4.3 µg/m³
27
Sylmar Public Library - Outside
1.5 km PM2.5: 6.4 µg/m³
26
Dyer ES (3493)
2.3 km PM2.5: 6.3 µg/m³
22
Gridley ES (4295)
3.5 km PM2.5: 5.2 µg/m³
21
Van Gogh ES (7422)
4.0 km PM2.5: 5.1 µg/m³
22
Knollwood ES (4762)
4.2 km PM2.5: 5.3 µg/m³
25
North Valley Occupational Ctr (9329)
4.3 km PM2.5: 6.0 µg/m³
25
San Fernando MS (8358)
4.4 km PM2.5: 5.9 µg/m³

Nearby Cities

26 Sylmar 25 San Fernando 24 North Hills 24 Santa Clarita 23 Northridge 24 Canyon Country 23 Stevenson Ranch 20 Chatsworth 27 Reseda

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-22T01:50 UTC.