Annette C. Dietz and Jerald L. Schnoor Department of Civil and Environmental Engineering, University of Iowa, Iowa City, Iowa, USA
Environ Health Perspect 109(suppl 1):163-168 (2001).
Abstract
Phytoremediation is the use of plants to remedy contaminated soils, sediments, and/or groundwater. Sorption and uptake are governed by physicochemical properties of the compounds, and moderately hydrophobic chemicals (logarithm octanol-water coefficients = 1.0-3.5) are most likely to be bioavailable to rooted, vascular plants. Some hydrophilic compounds, such as methyl- tert -butylether and 1,4-dioxane, may also be taken up by plants via hydrogen bonding with transpiration water. Organic chemicals that pass through membranes and are translocated to stem and leaf tissues may be converted (e.g., oxidized by cytochrome P450s), conjugated by glutathione or amino acids, and compartmentalized in plant tissues as bound residue. The relation……
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