Requirements for modeling trace metal partitioning in oxidized estuarine sediments
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Abstract
The fate of particulate-bound metals is of particular importance in estuaries because major biological energy flows involve consumption of detrital particles. The biological impact of particulate-bound metals is strongly influenced by the partitioning of metals among sediment components at the oxidized sediment-water interface. Adequate methods for directly measuring this partitioning are not available, thus a modeling approach may be most useful. Important requirements for such a model include: (1) determinations of metal binding intensities which are comparable among sediment components important in oxidized sediments; (2) comparable determinations of the binding capacities of the several forms of each component; (3) operational determinations of the abundance in natural sediments of components of defined binding capacity; (4) assessments of the influence of particle coatings and multicomponent aggregation on the available binding capacity of each substrate; (5) consideration of the effect of Ca and Mg competition on binding to different components; and (6) determinations of the kinetics of metal redistribution among components in oxidized sediments.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Requirements for modeling trace metal partitioning in oxidized estuarine sediments |
| Series title | Marine Chemistry |
| DOI | 10.1016/0304-4203(83)90078-6 |
| Volume | 12 |
| Issue | 2-3 |
| Year Published | 1983 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 23 p. |
| First page | 159 |
| Last page | 181 |
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