Duke Energy apologizes for massive spill of toxic coal ash into NC river, pledges cleanup

Duke University geochemistry professor Avner Vengosh warned it could take years before the full impacts of the spill work their way through the Dan River’s ecosystem. Vengosh has studied coal-ash contamination in lakes and rivers throughout North Carolina. He also studied the long-term impact of a huge 2008 coal ash spill in Kingston, Tenn. Read More.