Environment
Frederick County Virtual — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Frederick County Virtual in Frederick, Maryland.
Latest Air Quality Index
27
Good · monitor 31.0 km away
PM2.5 annual4.8 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
27
AQI latest — Good
27
AQI 7-day avg
1
Days unhealthy in last 90
4.8
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
49.8
Ozone annual ppb
Public Water System
NEW DESIGN - FREDERICK COUNTY · PWS MD0100030
0
Health-based violations (10yr)
0
Acute violations (10yr)
74,911
Population served
03
Most recent violation type
2023-04-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
16
TRI sites within 5 miles
2.6 mi
Nearest Superfund (NPL)
FORT DETRICK AREA B GROUND WATER
1.6 mi
Nearest brownfield
FREDERICK PARCELS J AND K
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).