Plant-assisted removal of เอนโดซัลแฟนซัลเฟต from soil in this study was due to phytostimulation. This mechanism has been successfully used to decontaminate other persistent organic pollutants. Forexample, vegetation of white clover in dibenzofuran-contaminated soil significantly increased the removal of this contaminant from soil. Dibenzofuran concentration decreased from an initial 1,000 to 333 mg kg after 60 days in soil planted with white clover. In comparison, dibenzofuran concentration de creasrd numder of dibenzofuran-degrading microorganisms was detected around the ไรโซสเฟียร์ of white clover. The removal of PCB was