Study on the Distribution of Heavy Metals in Atmospheric Dustfall in the Area around Linyi University

Abstract

This paper analyses the atmospheric dust in Linyi City about the content and the form distribution of heavy metals. The main research focuses on the eight kinds of heavy metal elements, including As, Cd, Cr, Cu, Hg, Mn, Pb, Zn. The research results show that the formation distribution of heavy metal element is differ, the morphology of Mn and Cu detection rate of 100%, with five kinds of form exist; Cu, Zn, Mn, Pb, Cd in the exchangeable ions and carbonate combined states accounted for 20% of the proportion of high proportion. Cr, Cd, heavy metal forms with exchangeable ions state, carbonate state, iron, manganese oxide combination state, which accounts for 80% to 95% of the total, unstable state 20% has some impact on the environment and the human body.