Environmental toxicology is a multidisciplinary field of science worried about the investigation of the hurtful impacts of different synthetic, natural and physical operators on living organisms. Ecotoxicology is a subdiscipline of environmental toxicology worried about considering the unsafe impacts of toxicants at the populace and biological system levels. Rachel Carson is viewed as the mother of environmental toxicology, as she made it a particular field inside toxicology in 1962 with the distribution of her book Silent Spring, which secured the impacts of uncontrolled pesticide use. Carson's book depended widely on a progression of reports by Lucille Farrier Stickel on the biological impacts of the pesticide DDT. Creatures can be presented to different sorts of toxicants at any life cycle stage, some of which are more touchy than others. Harmfulness can likewise shift with the life form's arrangement inside its food web. Bioaccumulation happens when a life form stores toxicants in greasy tissues, which may in the end set up a trophic course and the biomagnification of explicit toxicants. Biodegradation discharges carbon dioxide and water as results into the earth. This procedure is regularly constrained in regions influenced by environmental toxicants.