Environment
Union Elementary School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Union Elementary School in TOLLESON, Arizona.
Latest Air Quality Index
53
Moderate · monitor 13.0 km away
PM2.5 annual10.3 µg/m³
Water health violations 10yr0
TRI sites within 1 mi0
Air Quality
EPA AirNow + AQS · 2024
53
AQI latest — Moderate
53
AQI 7-day avg
3
Days unhealthy in last 90
10.3
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
56.2
Ozone annual ppb
39.7
NO₂ annual ppb
Public Water System
TOLLESON CITY OF · PWS AZ0407101
0
Health-based violations (10yr)
0
Acute violations (10yr)
9,300
Population served
72
Most recent violation type
2025-10-02
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
0
TRI sites within 1 mile
33
TRI sites within 5 miles
6.4 mi
Nearest Superfund (NPL)
PHOENIX GOODYEAR AIRPORT AREA
0.3 mi
Nearest brownfield
DURANGO REGIONAL OUTFALL
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).