(Department of Soil Science and Agriculture Chemistry, 2015-06-30) Ghosh, Amlan Kumar
Over the past few decades, the term heavy metals (such as lead, mercury, and cadmium) have been associated with contamination and potential toxicity or eco-toxicity, even at low concentration tend to bio-accumulate and cannot be processed by living organisms (Rand et al., 1995). Often as pollutants, which poses severe threats to environment and their occurrence in soils indicates the presence of natural or anthropogenic sources (Yoon et al., 2007).