(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170


Pages: 618-622
Y. Yahaya, I. Gajere, and A. W. Babayemi

keywords: Amaranths, bioaccumulation, heavy metals, soils,transfer factor, waste dumps


This study was conducted to determine the presence, concentration and bioaccumulation of selected heavy metals in amaranths grown on soils from waste dump sites. The selected heavy metals were analysed using AAS. There was no clear trend on the values for the concentrations of the heavy metals in both the amaranths and their soils from the three fields. When compared with literature reports, the values for the concentrations of the heavy Metals in Amaranthus caudatus and their soil samples were generally low. Fe had the highest mean values of 20.17, 17.14 and 18.81 µgg-1 in the vegetable samples and 28.63, 34.53and 34.51 µgg-1 in the soil samples from sites A, B and C, respectively, while Co had the lowest mean values of 00.52, 00.02 and 00.06 µgg-1 in the vegetable samples and 00.38, 00.53 and 00.35 µgg-1 in the soil samples from sites A, B and C, respectively. Significant differences were observed at P<0.05 between the mean values of Cu and Cr in amaranth samples and Fe in the soil samples from the three sites which indicated lack of relationship. The Transfer Factor values were generally less than 1 except for Cr in samples from sites B and C and for Co in samples from site A. Therefore, the bioaccumulation of the selected heavy metals by amaranths were very low and as such, the use of soils from waste dump sites for cultivation of vegetables can be encouraged.


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