The trace metal concentration absorption index value was determined to be in the following order: Cd = 0.92, Pb = 0.83, Cu = 0.79, Ni = 0.60, Cr = 0.46, Zn = 0.45, Fe = 0.42, and Mn = 0.40, in that order. Because cadmium (Cd) tends to form soluble complexes with specific soil components, such as iron and manganese oxides, it is highly soluble in soil, especially in acidic environments . This process increases the solubility of cadmium in acidic soils with lower pH values, which increases its availability for plant absorption . Additionally, compared to neutral or alkaline soils, acidic soils have greater solubility for lead (Pb), which makes it easier for plants to absorb . Studies investigating the effects of pH and organic matter on lead adsorption and desorption in soil have shown that acidic conditions increase the solubility of lead . With respect to pH and organic matter concentration, copper (Cu) has a moderate solubility in soil. Studies show that Cu solubility increases in acidic soils but decreases in alkaline ones, and that complex building with organic matter and soil minerals influences