Environment
Johnson — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Johnson in Natick, Massachusetts.
Latest Air Quality Index
33
Good · monitor 22.3 km away
PM2.5 annual6.0 µg/m³
Water health violations 10yr0
TRI sites within 1 mi5
Air Quality
EPA AirNow + AQS · 2024
33
AQI latest — Good
33
AQI 7-day avg
0
Days unhealthy in last 90
6.0
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
47.6
Ozone annual ppb
7.1
NO₂ annual ppb
Public Water System
NATICK WATER AND SEWER DIVISION · PWS MA3198000
0
Health-based violations (10yr)
0
Acute violations (10yr)
37,006
Population served
—
Most recent violation type
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
5
TRI sites within 1 mile
17
TRI sites within 5 miles
1.0 mi
Nearest Superfund (NPL)
NATICK LABORATORY ARMY RESEARCH DEVELOPMENT AND ENGINEERING CENTER
2.7 mi
Nearest brownfield
43 MORTON STREET
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).