Potentials of Avicennia marina, Bruguiera cylindrica and Sonneratia alba as heavy metal absorbent

Abstract

The potential of plants to absorb heavy metals can be determined by obtaining the differences between the plants' metal sorption rate and the amount of metal in the plants itself. In this study, the potentials of leaves, barks and roots of three mangrove species; Avicennia marina, Bruguiera cylindrica and Sonneratia alba, to absorb Cd was successfully determined. Samples with the powder concentration of 0.5 mg/ml and an initial metal solution concentration of 100 ppm was analyzed using ICP-MS. Root portion appeared to be the best part of plant to absorb metal solution with the following order of root > leaf > bark. The average metal sorption value by root is 0.527 ppm, leaf; 0.449 ppm and bark; 0.322 ppm.