Adsorption of Heavy Metals in Soil

Soil is a major reservoir for contaminants as it possesses ability to bind various chemicals. Diverse amounts of heavy metals may be found everywhere in soils, water, sediments, plants, even the arctic. Heavy metals may physically or chemically interact with the natural compounds. In other words they may react with particular species, change oxidation state and precipitate.Heavy metals may be bound by particular natural substances, which may increase or decrease mobility. Studying the dissipation of heavy metals is called speciation which may be physical or chemically.