Knollwood ES (4762) Air Quality

Monitoring Station · Sylmar, United States
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
40 5am
41
41
41 8am
41
53
53 11am
53
53
53 2pm
41
41
41 5pm
41
41
— 8pm
—
—
— 11pm
—
—
— 2am
—
—
Station readings
40
41
CAMS model adj -13
54
54
54
54
54
66
66
66
66
66
54
54
54
54
54

Air Quality Forecast (24h)

PM2.59.8 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

41
Rinaldi Adult Center (9365)
2.1 km PM2.5: 9.8 µg/m³
44
Danube ES (3335)
2.1 km PM2.5: 10.6 µg/m³
36
Van Gogh ES (7422)
2.5 km PM2.5: 8.7 µg/m³
47
North Valley Occupational Ctr (9329)
3.4 km PM2.5: 11.3 µg/m³
45
Mayall ES (5198)
3.4 km PM2.5: 10.7 µg/m³
38
Andasol ES (2117)
4.0 km PM2.5: 9.2 µg/m³
40
Vintage Math/Sci Mag ES (7562)
4.0 km PM2.5: 9.6 µg/m³
42
Herrick Ave ES (4515)
4.2 km PM2.5: 10.1 µg/m³

Nearby Cities

37 Sylmar 42 San Fernando 43 North Hills 41 Northridge 44 Reseda 34 Chatsworth 39 Winnetka 41 Van Nuys 48 Santa Clarita

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T08:13 UTC.