Environment
Webster Extension — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Webster Extension in Everett, Massachusetts.
Latest Air Quality Index
34
Good · monitor 3.5 km away
PM2.5 annual6.1 µg/m³
Water health violations 10yr0
TRI sites within 1 mi10
Air Quality
EPA AirNow + AQS · 2024
34
AQI latest — Good
34
AQI 7-day avg
3
Days unhealthy in last 90
6.1
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
36.9
Ozone annual ppb
19.7
NO₂ annual ppb
Public Water System
EVERETT WATER DEPT. (MWRA) · PWS MA3093000
0
Health-based violations (10yr)
0
Acute violations (10yr)
49,075
Population served
66
Most recent violation type
2021-06-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
10
TRI sites within 1 mile
88
TRI sites within 5 miles
7.0 mi
Nearest Superfund (NPL)
WELLS G H
0.2 mi
Nearest brownfield
MALDEN RIVER PARCELS
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).