Environment
Atholton High — Environment & Air Quality
Air quality, drinking-water safety and environmental hazards within 1–5 miles of Atholton High in Columbia, Maryland.
Latest Air Quality Index
37
Good · monitor 5.8 km away
PM2.5 annual6.6 µg/m³
Water health violations 10yr0
TRI sites within 1 mi1
Air Quality
EPA AirNow + AQS · 2024
37
AQI latest — Good
37
AQI 7-day avg
1
Days unhealthy in last 90
6.6
PM2.5 annual µg/m³ (EPA NAAQS limit: 9.0)
44.6
Ozone annual ppb
26.5
NO₂ annual ppb
Public Water System
HOWARD COUNTY D.P.W. DISTRIBUTION · PWS MD0130002
0
Health-based violations (10yr)
0
Acute violations (10yr)
286,158
Population served
71
Most recent violation type
2022-07-01
Nearby Environmental Hazards
EPA Superfund (NPL), TRI release sites, brownfields (2024)
1
TRI sites within 1 mile
10
TRI sites within 5 miles
11.0 mi
Nearest Superfund (NPL)
BELTSVILLE AGRICULTURAL RESEARCH CENTER USDA
6.4 mi
Nearest brownfield
INDUSTRIAL TOWEL SUPPLY INC
Sources: school_air_quality + school_air_quality_daily (EPA AQS / AirNow), school_water_safety (EPA SDWIS), school_env_hazards (EPA NPL / TRI / Brownfields).