Environment
Thompson — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Thompson in Arlington, Massachusetts.
Latest Air Quality Index
33
Good · monitor 7.8 km away
PM2.5 annual6.0 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
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)
36.9
Ozone annual ppb
19.7
NO₂ annual ppb
Public Water System
ARLINGTON WATER DEPT. (MWRA) · PWS MA3010000
0
Health-based violations (10yr)
0
Acute violations (10yr)
46,308
Population served
03
Most recent violation type
2020-01-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
108
TRI sites within 5 miles
5.7 mi
Nearest Superfund (NPL)
WELLS G H
0.6 mi
Nearest brownfield
166 BOSTON AVENUE
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).