Environment
Challenge Elementary — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Challenge Elementary in MTLK TERRACE, Washington.
Latest Air Quality Index
24
Good · monitor 11.5 km away
PM2.5 annual4.3 µg/m³
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
24
AQI latest — Good
24
AQI 7-day avg
3
Days unhealthy in last 90
4.3
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
34.9
Ozone annual ppb
25.6
NO₂ annual ppb
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
16
TRI sites within 5 miles
14.7 mi
Nearest Superfund (NPL)
LOCKHEED WEST SEATTLE
1.3 mi
Nearest brownfield
VALUE VILLAGE
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).