Organo-Metal Complexes as Mobility-Determining Factors of Inorganic Toxic Elements in Porous Media

A tree regression analysis of factors determining the sorption and retention of heavy metals by soil

“…The sorption of deposited heavy metals by soil particles can minimize their passage into surface and subterranean waters, but at the same time creates the possibility that alteration of soil conditions may result in release of the accumulated load into the soil solution, thereby causing pollution of groundwater and/or contamination of plants (Karathanasis, 1999). Thus the fate of heavy metals, and the toxic risk they pose, depend crucially on their sorptiondesorption equilibria and dynamics in the soils on which they are deposited, and on how these equilibria change in response to changing environmental conditions (Klamberg et al, 1989;Evans, 1989). Empirical investigation of these processes is essential, because although they depend on both the nature of the soil and the characteristics of the metal ions, it is the former that appear to have the greater influence (Gomes et al, 2001;Covelo et al, 2004).…”

The influence of soil properties on the individual and competitive sorption and desorption of Cu and Cd

“…Thus the fate of heavy metals, and the toxic risk they pose, depend crucially on their sorption-desorption equilibriums and dynamics in the soils on which they are deposited, and on how these equilibrium vary in response to changing environmental conditions (Evans, 1989;Klamberg et al, 1989).…”

The fate and behavior of lead alkyls in the environment: A review

“…Specific adsorption of toxic metals such as Pb onto solid organic matter components of soil can be at least partially irreversible. 47 Adsorption of inorganic Pb in soil is controlled mainly by the presence of humic substances.…”