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A Critical Review on the Occurrence and Distribution of the Uranium- and Thorium-decay Nuclides and Their Effect on the Quality of Groundwater by Avner Vengosh; Rachel M. Coyte; Joel Podgorski; Thomas M. Johnson is a scholarly article available to read on EtoBox.

What is A Critical Review on the Occurrence and Distribution of the Uranium- and Thorium-decay Nuclides and Their Effect on the Quality of Groundwater about?

This critical review presents the key factors that control the occurrence of natural elements from the uranium- and thorium-decay series, also known as naturally occurring radioactive materials (NORM), including uranium, radium, radon, lead, polonium, and their isotopes in groundwater resources. Given their toxicity and radiation, elevated levels of these nuclides in drinking water pose human health risks, and therefore understanding the occurrence, sources, and factors that control the mobilization of these nuclides from aquifer rocks is critical for better groundwater management and human health protection. The concentrations of these nuclides in groundwater are a function of the groundwater residence time relative to the decay rates of the nuclides, as well as the net balance between nuclides mobilization (dissolution, desorption, recoil) and retention (adsorption, precipitation). This paper explores the factors that control this balance, including the relationships between the elemental chemistry (e.g., solubility and speciation), lithological and hydrogeological factors, groundwater geochemistry (e.g., redox state, pH, ionic strength, ion-pairs availability), and their combine

Author

Avner Vengosh; Rachel M. Coyte; Joel Podgorski; Thomas M. Johnson

Publisher

Elsevier BV

Published

2021

Language

EN