- Trees (sometimes called dendroremediation) are more effective than grasses and small plants in phytoremediation because of their deep root structures and high volume of water uptake.
- Phytoremediation has additional benefits beyond removing heavy metals, such erosion control and reduced health risks.
- Traditional remediation methods often require soil to be removed for washing, burning, or chemical stabilization which drastically alters the landscape and disturbs local ecological systems.
- Phytoremediation using trees brings economic possibilities for the future through biomass production for energy and timber sales.
- Although excavating contaminated soil is faster, the cost of phytoremediation is 50% lower than traditional remediation.
- Redeveloping and cleaning brownfields brings new jobs through construction and maintenance and raises property value by 15% once the project is completed.
- Trees and plants take time to absorb toxins, so they are not the most effective approach for rapid redevelopment projects.
- Trees and plants from brownfields need to first be tested for high levels of heavy metals and other chemicals before consumption and sale.