Soil toxicology is a branch of environmental toxicology that deals with the toxicity of the chemical, physical or biological substances that inhibit the growth of organisms and plants. The presence of Xenobiotics in the soil leads to the soil pollution thereby degrading the environment. These Xenobiotics are released by industries, due to chemicals and pesticides used in agriculture and also due to the improper disposal of waste.
Various pollutants contaminate the soil through human anthropogenic activities and natural causes. The main causes of soil pollution are Biological agents, Agricultural practices, Urban and Industrial Wastes.
Chemical contaminants that lead to soil toxicity include Lead, Mercury, Arsenic, Copper, Zinc, Nickel, Poly Aromatic Hydrocarbons(PAHS) and Pesticides and Herbicides.
- Physio chemical properties of Soil