SOIL CONTAMINATION BY Pb, Zn AND Cd FROM A LEAD SMELTERY

摘要

In the enviornment of a lead smeltery contamination with lead, zinc and cadmium was measured over a 15-year period. Efficient bag filters were installed in order to remove dust from the flue gases. This measure of improvment resulted in a drastic reduction of lead, zinc and cadmium conent in suspended particles (by 92, 94 and 89/100), to a lesser extent in depositions (by 79, 75 and 68/100), whereas in household dust the reduction was considerably lower (by 53, 55 and 70/100). It can be assmed that household dust contains also redispersed soil aprticles on which the duct from the smeltery fleu gases has deposited over years. d