Subject
- Coal ash -- Environmental aspects -- Oregon -- Boardman1
- Coal ash -- Environmental aspects -- Tennessee -- Roane County1
- Coal ash -- Health aspects -- Oregon -- Boardman1
- Coal ash -- Health aspects -- Tennessee -- Roane County1
- Coal ash -- Storage -- Environmental aspects -- Oregon -- Boardman1
- Coal ash -- Storage -- Environmental aspects -- Tennessee -- Roane County1
- Coal-fired power plants -- By-products -- Environmental aspects -- Oregon -- Boardman1
- Coal-fired power plants -- By-products -- Environmental aspects -- Tennessee -- Roane County1
- Coal-fired power plants -- Environmental aspects -- Oregon -- Boardman1
- Coal-fired power plants -- Environmental aspects -- Tennessee -- Roane County1
- Coal-fired power plants -- Waste disposal -- Environmental aspects -- Oregon -- Boardman1
- Coal-fired power plants -- Waste disposal -- Environmental aspects -- Tennessee -- Roane County1
- Radioactive pollution -- Oregon -- Boardman1
- Radioactive pollution -- Tennessee -- Roane County1