Concerning the ability of each
macrophyte species to absorb the metals according to
the BF, the ranking for C. giganteus and E. crassipes
was Fe>Mn>Al>Zn>Ni>Cr>Cu and that for
T. domingensis was Mn>Fe>Al>Ni>Zn>Cr>Cu in
the dry season. In the rainy season, T. domingensis
was ranked as Fe>Mn>Al >Zn>Cu>Ni>Cr;
C. giganteus was in the sequence of Fe>Mn>Al>