Knollwood ES (4762)

Monitoring Station · Sylmar, United States
51
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
52 7pm
51
51
51 10pm
51
26
26 1am
13
26
26 4am
51
51
51 7am
51
51
— 10am
—
—
— 1pm
—
—
— 4pm
—
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Station readings
52
51
51
CAMS model adj -24
75
75
75
75
75
50
50
37
50
50
75
75
75
75
75

Air Quality Trend (24h)

PM2.512.1 µg/m³ ✓ WHO
Moderate

Nearby Monitoring Stations

47
Rinaldi Adult Center (9365)
2.1 km PM2.5: 11.2 µg/m³
54
Danube ES (3335)
2.1 km PM2.5: 13.5 µg/m³
47
Van Gogh ES (7422)
2.5 km PM2.5: 11.3 µg/m³
55
North Valley Occupational Ctr (9329)
3.4 km PM2.5: 14.2 µg/m³
53
Mayall ES (5198)
3.4 km PM2.5: 13.0 µg/m³
42
Andasol ES (2117)
4.0 km PM2.5: 10.2 µg/m³
50
Vintage Math/Sci Mag ES (7562)
4.0 km PM2.5: 12.0 µg/m³
56
Herrick Ave ES (4515)
4.2 km PM2.5: 14.4 µg/m³

Nearby Cities

48 Sylmar 51 San Fernando 54 North Hills 53 Northridge 54 Reseda 51 Chatsworth 54 Winnetka 53 Van Nuys 47 Santa Clarita

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T22:41 UTC.