Environment
Greylock — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Greylock in North Adams, Massachusetts.
Latest Air Quality Index
32
Good · monitor 3.8 km away
PM2.5 annual5.8 µg/m³
Water health violations 10yr2
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
32
AQI latest — Good
32
AQI 7-day avg
3
Days unhealthy in last 90
5.8
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
43.8
Ozone annual ppb
11.6
NO₂ annual ppb
Public Water System
NORTH ADAMS WATER DEPT · PWS MA1209000
2
Health-based violations (10yr)
0
Acute violations (10yr)
13,000
Population served
03
Most recent violation type
2018-01-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
10
TRI sites within 5 miles
8.9 mi
Nearest Superfund (NPL)
POWNAL TANNERY
0.2 mi
Nearest brownfield
GREYLOCK MILL
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).