Knollwood ES (4762)

Monitoring Station · Sylmar, United States
49
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
51 9pm
49
53
28 12am
28
15
28 3am
28
53
53 6am
53
53
53 9am
53
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— 12pm
—
—
— 3pm
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— 6pm
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Station readings
51
49
CAMS model adj -22
75
75
75
50
50
37
50
50
75
75
75
75
75
75

Air Quality Trend (24h)

PM2.511.8 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

44
Rinaldi Adult Center (9365)
2.1 km PM2.5: 10.6 µg/m³
53
Danube ES (3335)
2.1 km PM2.5: 13.1 µg/m³
46
Van Gogh ES (7422)
2.5 km PM2.5: 11.0 µg/m³
54
North Valley Occupational Ctr (9329)
3.4 km PM2.5: 13.7 µg/m³
52
Mayall ES (5198)
3.4 km PM2.5: 12.4 µg/m³
41
Andasol ES (2117)
4.0 km PM2.5: 9.9 µg/m³
47
Vintage Math/Sci Mag ES (7562)
4.0 km PM2.5: 11.2 µg/m³
55
Herrick Ave ES (4515)
4.2 km PM2.5: 13.9 µg/m³

Nearby Cities

49 Sylmar 50 San Fernando 52 North Hills 52 Northridge 51 Reseda 50 Chatsworth 52 Winnetka 50 Van Nuys 45 Santa Clarita

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-10T00:06 UTC.