Environment
Langley High — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Langley High in McLean, Virginia.
Latest Air Quality Index
38
Good · monitor 13.6 km away
PM2.5 annual6.4 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
38
AQI latest — Good
38
AQI 7-day avg
3
Days unhealthy in last 90
6.4
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
50.1
Ozone annual ppb
16.3
NO₂ annual ppb
Public Water System
FL PACIFIC FARMS FARM WORKER HOUSING · PWS FL6296422
0
Health-based violations (10yr)
0
Acute violations (10yr)
160
Population served
—
Most recent violation type
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
4
TRI sites within 5 miles
10.9 mi
Nearest Superfund (NPL)
WASHINGTON NAVY YARD
4.7 mi
Nearest brownfield
4025 CHESAPEAKE STREET PROPERTY
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).