Abstract
This study was aimed at determining the level of baseline data on heavy metals in yellow flesh sweet potato (Ipomoea batatas) from six selected agricultural farms in Trinidad and to indicate possible source of contamination risks. Samples of soil and sweet potato tuber, vines and leaves were collected in January 2018.Across all tissue samples of sweet potato, heavy metals were present in the concentration order Zn >Cu>Pb>Ni>Cd. The stem and leaves concentrate more heavy metals than edible tuberous roots. All metal BAF was less than one (BAF<1) and TF> 1 which shows sweet potato effectively translocate these metals from tuber to shoot. Essential micronutrients Zn, Cu and Ni were below WHO ML while the non-essential elements Pb and Cd exceeded the WHO ML limits.
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