TRACING THE EFFECT OF DIFFERENT SOURCES OF SOIL POLLUTION WITH HEAVY METALS ON THE STATUS OF POLLUTION INDEXES AND THE DISTRIBUTION OF CHEMICAL FORMS FOR EACH ELEMENT AMONG ITS COMPONENTS.

This study was conducted on some agricultural clayey soils in Kafr El-Sheikh governorate in order to explore the effect of different sources of heavy metal pollution on the type and quantity of some tested metals (Cu, Cr, Mn, Zn and Pb) in these soils. Also, to identify the distribution of these metals among the different components of tested soils. The different indicators (Ci f, Igeo and Ei f) of pollution with these elements were calculated in each soil to determine the significance of the pollution of each metal under different pollution conditions. The results of this study showed a difference in the content and type of tested metals (Cu, Cr, Mn, Zn and Pb) compared to the control (virgin soil). Consequently, the data of this study showed a difference in the values of the pollution indicators for each metal in the tested soils, affected by the different sources of pollution and amount of heavy polluting metals that reached to each soil. Likewise, the results of the chemical forms for each tested metal showed that they are concentrated in each of the following soil fractions F3 and F4. [ABSTRACT FROM AUTHOR]