Herrick Ave ES (4515) Air Quality

Monitoring Station · Sylmar, United States
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
51 12am
45
53
53 3am
53
53
53 6am
53
53
53 9am
65
65
65 12pm
65
65
— 3pm
—
—
— 6pm
—
—
— 9pm
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Station readings
51
45
CAMS model adj -1
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66

Air Quality Forecast (24h)

PM2.510.8 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

26
Sylmar Public Library - Inside
1.4 km PM2.5: 6.2 µg/m³
40
Sylmar Public Library - Outside
1.5 km PM2.5: 9.6 µg/m³
47
Dyer ES (3493)
2.3 km PM2.5: 11.2 µg/m³
44
Gridley ES (4295)
3.5 km PM2.5: 10.5 µg/m³
38
Van Gogh ES (7422)
4.0 km PM2.5: 9.1 µg/m³
43
Knollwood ES (4762)
4.2 km PM2.5: 10.3 µg/m³
44
North Valley Occupational Ctr (9329)
4.3 km PM2.5: 10.5 µg/m³
41
San Fernando MS (8358)
4.4 km PM2.5: 9.8 µg/m³

Nearby Cities

39 Sylmar 41 San Fernando 42 North Hills 50 Santa Clarita 40 Northridge 43 Canyon Country 44 Stevenson Ranch 37 Chatsworth 48 Reseda

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T03:51 UTC.