Environment
Mary E Flaherty School — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Mary E Flaherty School in Braintree, Massachusetts.
Latest Air Quality Index
29
Good · monitor 5.0 km away
PM2.5 annual5.1 µg/m³
Water health violations 10yr0
TRI sites within 1 mi3
Air Quality
EPA AirNow + AQS · 2024
29
AQI latest — Good
29
AQI 7-day avg
0
Days unhealthy in last 90
5.1
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
46.6
Ozone annual ppb
11.9
NO₂ annual ppb
Public Water System
BRAINTREE WATER AND SEWER DEPT. · PWS MA4040000
0
Health-based violations (10yr)
0
Acute violations (10yr)
39,143
Population served
72
Most recent violation type
2025-07-02
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
3
TRI sites within 1 mile
27
TRI sites within 5 miles
5.0 mi
Nearest Superfund (NPL)
BAIRD MCGUIRE
2.3 mi
Nearest brownfield
QUARRY STREET DEVELOPMENT SITE
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).