Authors
AaPGCC Tessier, PGC Campbell
Publication date
1987/6
Journal
Hydrobiologia
Volume
149
Pages
43-52
Publisher
Kluwer Academic Publishers
Description
As a result of complex physical, chemical and biological processes, a major fraction of the trace metals introduced into the aquatic environment is found associated with the bottom sediments, distributed among a variety of physico-chemical forms. As these different metal forms will generally exhibit different chemical reactivities, the measurement of the total concentration of a particular metal provides little indication of potential interactions with the abiotic or biotic components present in the environment. In principle, the partitioning of sediment-bound metals could be determined both by thermodynamic calculations (provided equilibrium conditions prevail) and by experimental techniques. The modelling of sediment-bound metals is far less advanced than is that of dissolved species, primarily because the thermodynamic data needed for handling sediment-interstitial water systems are not yet available. The …
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Scholar articles
A Tessier, PGC Campbell - Hydrobiologia, 1987