Environment
SELVIDGE MIDDLE — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of SELVIDGE MIDDLE in BALLWIN, Missouri.
Latest Air Quality Index
34
Good · monitor 19.5 km away
PM2.5 annual6.2 µg/m³
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
34
AQI latest — Good
34
AQI 7-day avg
3
Days unhealthy in last 90
6.2
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
49.8
Ozone annual ppb
19.4
NO₂ annual ppb
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
8
TRI sites within 5 miles
3.4 mi
Nearest Superfund (NPL)
ELLISVILLE SITE
4.5 mi
Nearest brownfield
CITY OF CHESTERFIELD
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).