As the accumulation place of metals in the water environment, sediments can reflect the situation about how metals pollute waters. With the development of the three bases of coal mines, power plants and chemical factories in Huainan, lots of solid wastes were stacked on the ground surface. Because of the effect of weathering and leaching, hazardous metal elements among solid wastes will release and transfer into surrounding soils and surface waters, snd they will damage the ecological environment of...