Heavy Metal Pollution From Spillage at Ore Smelters and Mills
U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-77/171. Description: Smelter and mill wastewater outfalls, receiving water, biota, slag heaps, tailings ponds, streams, and coal-burning fly ash dumps were sampled as part of this effort to determine the effect of effluent or residual spillage on aquatic systems.