ABSTRACT

Soil offers shelter and habitat for numerous organisms and is the basis for agriculture. Agricultural soil contaminants typically arise from natural and human activities. The type of contaminants in agricultural soil is linked with biological and geochemical cycles and is influenced by human activities such as agricultural practices, industrial activities, and waste disposal. Once contaminants are present in soils, some can undergo chemical changes such as organic, and others may be degraded into products with more or less toxics than their original compound. Farm families may be exposed to soil contaminants through the processes of eating and/or drinking, skin contact, and breathing. Pesticides are chemicals used as insecticides, fungicides, herbicides, and poisons for rodents. These products are made of chemicals that are not originally found in nature and hence lead to soil contamination. Besides its impact on crop health, agricultural soil contamination has major consequences on human health.