Solid-solution distributions of radionuclides in acid soils: application of the WHAM chemical speciation model
Article Abstract:
The Windermere Humic Aqueous Model has been developed to explain multiple reactions in waters and soils containing organic matter. Application of the model to test three acid soils revealed successful predictions of soil humic matter and organic matter interactions. The model also allowed prediction of the effects of aluminum and adsorption-desorption reactions between soil and water. It is further subdivided into sub-models, with each sub-model focusing on a specific chemical reaction.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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Trace metal assessment of Lake Michigan tributaries using low-level techniques
Article Abstract:
EPA, in cooperation with US Geological Survey and the Depts. of Natural Resources in Michigan and Wisconsin, launched the Lake Michigan Tributary Monitoring Project to assess trace metal levels in Lake Michigan. Extensive sampling of 11 tributaries using low-level techniques revealed extremely low metal contamination levels in Lake Michigan tributaries. The trace metals detected in the samples included arsenic, cadmium, chromium, lead, zinc and mercury.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Modeling the competition between alkaline earth cations and trace metal species for binding by humic substances
Article Abstract:
The competition effects in the binding of trace metal species and alkaline earth cations by fulvic-type humic substances are discussed. Humic ion-binding model V was used to evaluate the extent to which the observed competition effects are compatible with metal-proton exchange equilibrium constants. It was found that modes of metal-humate interactions are constrained by data on the competetive interactions of humic acids with several metals.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1993
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