Title: Effects of coal-mine drainage on stream water quality in the Allegheny and Monongahela River basins
Subjects: Acid mine drainage, Coal mines and mining, Environmental aspects, Environmental aspects of Coal mines and mining, Sulfates, Sulphates
Places: Allegheny River Watershed (Pa. and N.Y.), Allegheny River Watershed (Pa. and N.Y.)., Monongahela River Watershed (W. Va. and Pa.), Monongahela River Watershed (W. Va. and Pa.).