Theoretical Considerations

Consider first the simpler case of a partition-limited model for the plant uptake of nonionic contaminants from a soil-free nutrient solution by passive transport through the plant vascular system. Here water is both the solvent for the contaminant and the medium that carries it to plant roots (and to other water-contacted surfaces) and eventually to other parts of the plant via the plant vascular system. The overall plant uptake process is driven by the external-water concentration and is...

Time Dependence Of Contaminants In Plants

A subject of considerable interest to the plant uptake of a contaminant is the time dependence of the contaminant level in a specific part of the plant. In the practice of bioremediation by planting, this would determine the efficiency of a plant in taking up a target contaminant with time from an external source. Although not well established at this time, the preceding data analysis leads to the expectation that the change with time of the in-plant contaminant level should be a function of...