"This map shows the boundaries of the designated Huntington-Ashland, WV-KY-OH PM2.5 nonattainment area. It includes the boundaries of associated 8-hour ozone nonattainment areas, as well as any associated MPOs. The map is intended to depict the extent of PM2.5 nonattainment in this area, and how the boundaries of the PM2.5 area, 8-hour area, and the MPO planning area relate to each other."
- Huntington-Ashland, WV-KY-OH PM2.5 Nonattainment Area
- KENTUCKY
- Boyd Co
- Lawrence Co (P)
- OHIO
- Adams Co (P)
- Gallia Co (P)
- Lawrence Co
- Scioto Co
- WEST VIRGINIA
- Cabell Co
- Mason Co (P)
- Wayne Co
- KENTUCKY
- Huntington-Ashland, WV-KY 8-hour Ozone Nonattainment Area
- KENTUCKY
- Boyd Co
- WEST VIRGINIA
- Cabell Co
- Wayne Co
- KENTUCKY
- FIVCO Area Development District
- KENTUCKY
- Boyd Co
- Greenup
- KENTUCKY
- KYOVA Interstate Planning Commission
- OHIO
- Lawrence Co (P)
- WEST VIRGINIA
- Cabell Co
- Wayne Co
- OHIO
