Agricultural pollutants like industrial waste water and pesticides, fertilizers etc. are the main sources of soil pollution.

It is very important to maintain soil quality and fertility in order to sustain vegetation. DDT like insecticides are soluble in water because of this, it survives very long in the soil. Pesticides such as Aldrin and Dieldrin are non-biodegradable as it is very poisonous to the environment.

It causes discomfort in body activities by entering the diet. This is also true for bad waste of industries because you also have elements like $\mathrm{Pb}, \mathrm{Hg}, \mathrm{Cd}$, As.

The best way to do this it to periodically check the soil pollution. Before freeing dirty water. It is necessary to clean it by proper procedure.