McKay, Donald. "Front matter" Multimedia Environmental Models ...

Users are encouraged to modify the various parameter values and are cautioned
that the values given are not necessary widely applicable. It should be noted again
that varying the input temperature will not vary physical chemical properties such
as vapor pressure. Temperature dependence must be entered “by hand.”
8.5.1 Introduction
©2001 CRC Press LLC
8.5 A SEDIMENT-WATER EXCHANGE MODEL
Exchange of chemical at the sediment-water interface can be important for the
estimation of (1) the rates of accumulation or release from sediments, (2) the
concentration of chemicals in organisms living in, or feeding from, the benthic
region, (3) which transfer processes are most important in a given situation, and (4)
the likely recovery times in the case of “in-place” sediment contamination. The
complexity of the system and the varying properties of chemicals of possible concern
lead to a situation in which a specific chemical’s behavior is not necessarily obvious.
This situation treated here, and the resulting model are largely based on a
discussion of sediment-water exchange by Reuber et al. (1987), Eisenreich (1987),
Diamond et al. (1990), and in part on a report by Formica et al. (1988). It is depicted
in Figure 8.3.
Figure 8.3 Sediment-water exchange processes.