Dyer ES (3493)

Monitoring Station · Sylmar, United States
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
63 7pm
57
57
57 10pm
57
32
32 1am
19
32
32 4am
57
57
57 7am
57
—
— 10am
—
—
— 1pm
—
—
— 4pm
—
—
Station readings
63
57
CAMS model adj -18
75
75
75
75
75
50
50
37
50
50
75
75
75
75

Air Quality Trend (24h)

PM2.514.9 µg/m³ ✓ WHO
Moderate

Nearby Monitoring Stations

49
Sylmar Public Library - Outside
0.9 km PM2.5: 11.7 µg/m³
28
Sylmar Public Library - Inside
1.0 km PM2.5: 6.6 µg/m³
56
Gridley ES (4295)
1.7 km PM2.5: 14.6 µg/m³
54
San Fernando MS (8358)
2.1 km PM2.5: 13.3 µg/m³
57
Herrick Ave ES (4515)
2.3 km PM2.5: 14.8 µg/m³
57
North Valley Occupational Ctr (9329)
2.6 km PM2.5: 14.8 µg/m³
60
Harding ES (4431)
2.9 km PM2.5: 16.6 µg/m³
55
Danube ES (3335)
3.8 km PM2.5: 13.8 µg/m³

Nearby Cities

52 Sylmar 52 San Fernando 54 North Hills 54 Northridge 54 Van Nuys 54 Valley Glen 51 Santa Clarita 54 Reseda 54 Sunland

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T22:16 UTC.