Research Article
Phytoremediation of Gold Mine Tailings Amended with Iron-Coated and Uncoated Rice Husk Ash by Vetiver Grass (Vetiveria zizanioides (Linn.) Nash)
Figure 3
Concentration (mg kg−1) of As, Cd, Cr, Cu, Mn, Zn, and Pb in shoot of vetiver grass grown in gold mine amended with (a) RHA and (b) Fe-RHA (mean , ±SD). Different letters correspond to significant differences between rates of the same ash (). Pb was not detected.
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| (b) |