Toxic Effect of Fly Ash on Biological Environment

Abstract

Abstract. Class F fly ash is non-demand mineral by-product from fuel industry that is stored in landfills polluting a surrounding territories. Content and composition of soluble mineral components in fly ashes from different power plants are varied in wide range. Leaching into fly ashes these component can differently effect on bioobject activity. In this paper correlation between pH-value of water extracts from fly-ashes, hardness of them and content of evapored mineral residue from the water extract was studied. It is determined the increasing of evapored mineral residue content corresponds to increasing of hardness and pH-value of water extracts.