EPA Air · NAAQS nonattainment
Air-emissions sources in nonattainment counties, Montana
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.
- 84Facilities
Counties with sources in nonattainment areas, Montana
- Cascade County12
- Flathead County7
- Lewis and Clark County13
- Missoula County18
- Rosebud County3
- Silver Bow County3
- Yellowstone County24
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 MT in nonattainment areas. It lists 167 facilities in MT, 84 facilities in MT in nonattainment areas, and 28 major sources in MT in nonattainment areas.