An overview of the principles and methods in phytoremediation.

• Etymology and definition
• The Principle
• Different forms of phytoremediation
• Phytoextraction
• Rhizofiltration
• Phytostabilization
• Phytodegradation
• Phytovolatilization
• Advantages and disadvantages
• Conclusion

• Use plants to "vacuum" heavy metals from the soil through their roots
• Certain species have the ability to extract elements from the soil and concentrate them in the stems, shoots, and leaves
• The unique plants must be able to tolerate and survive high levels of heavy metals in soils-like zinc, cadmium, and nickel.
• These plants possess genes that regulate the amount of metals taken up from the soil by roots and deposited at other locations within the plant.
• Some contaminants also changed into safer gases as plant traspires.