Radionuclides in the environment : uranium

Research output: Contribution to report/book/conference proceedingsChapter

Institutes & Expert groups

  • ANSTO - Australian Nuclear Science and Technology Organisation - Australia

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Abstract

This article describes the occurrence, chemistry, and bioavailability of uranium (U) in terrestrial and aquatic environments, its analysis in environmental samples, and remedial measures applicable to uranium-contaminated water and soil. Uranium is widely distributed throughout the world. There are three main isotopes present in natural uranium, which comprises 234U (0.0055%), 235U (0.72%), and 238U (99.27%). Uranium can occur either in its reduced state (U(IV)), which is generally highly immobile, or in its more soluble and mobile higher oxidation state (U(VI)). Concentrations of uranium in rocks can range from those of ore-grade deposits to the trace levels typical of common rock-forming minerals. Uranium mobility and bioavailability are governed by oxidation state, complexation by organic and inorganic ligands, pH, sorption by minerals including clays and hydroxides, and interactions with organic matter. In uncontaminated surface waters, uranium content is generally low (

Details

Original languageEnglish
Title of host publicationRadionuclides in the Environment
Place of PublicationWest Sussex, United Kingdom
PublisherWiley - John Wiley & Sons, Ltd
Pages261-272
Edition1
ISBN (Print)9780470714348
StatePublished - 25 May 2010

Publication series

NameRadionuclides in the Environment

Keywords

  • uranium

ID: 212387