EPA Air · NAAQS nonattainment
Air-emissions sources in nonattainment counties, Maryland
Facilities in a county EPA has designated as not meeting a National Ambient Air Quality Standard (NAAQS) for at least one pollutant, per EPA’s Green Book of currently designated areas.
- 6,437Facilities
Counties with sources in nonattainment areas, Maryland
- Anne Arundel County672
- Baltimore County1,116
- Calvert County70
- Carroll County224
- Cecil County142
- Charles County134
- Frederick County383
- Harford County317
- Howard County234
- Kent County47
- Montgomery County1,332
- Prince George's County1,450
- Queen Anne's County45
- Washington County271
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Facility and location figures from EPA’s ICIS-AIR download. Nonattainment designation from EPA’s Green Book, by county and state.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for state MD in nonattainment areas. It lists 9,831 facilities in MD, 6,437 facilities in MD in nonattainment areas, and 67 major sources in MD in nonattainment areas.