Environment
Center Elementary School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Center Elementary School in Chelmsford, Massachusetts.
Latest Air Quality Index
30
Good · monitor 3.3 km away
PM2.5 annual5.4 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
30
AQI latest — Good
30
AQI 7-day avg
3
Days unhealthy in last 90
5.4
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
38.6
Ozone annual ppb
19.9
NO₂ annual ppb
Public Water System
CHELMSFORD WATER DISTRICT · PWS MA3056000
0
Health-based violations (10yr)
0
Acute violations (10yr)
28,750
Population served
—
Most recent violation type
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
59
TRI sites within 5 miles
2.5 mi
Nearest Superfund (NPL)
SILRESIM CHEMICAL CORP
0.9 mi
Nearest brownfield
STC PROPERTY
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).