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Heavy metal contamination of polluted site has become a recurring decimal globally posing a threat to human life and biodiversity. This study was carried out to investigate the bioaccumulation potential and health risk assessment associated with the consumption of two indigenous vegetables Corchorus olitorius L. (Malvaceae) and Amaranthus hybridus (Amaranthaceae) in Akure. Initial pre soil analysis showed that the heavy metal concentration were above the safe limit as recommended by World Health Organization (WHO). The heavy metals investigated include Cr, Ni, Cd, Fe and Pb for their bioaccumulation factor to provide baseline data regarding environmental safety and suitability of the vegetables for human consumption. Translocation factor, Daily Intake of Metal (DIM), Health Risk Index (HRI) and Oral Refrence Dose (RFD) were calculated following standard methods. This study concludes that different vegetables accumulate and translocate variable amount of heavy metals from the soil into their tissues. Hence, it is not advisable to consume vegetable samples collected from this site based on the permissible limits as recommended by World Health Organization (WHO).

brazilian journal of biological sciences

Bioaccumulation potential and health risk assessment of heavy metals in Corchorus olitorius L. (Malvaceae) and Amaranthus hybridus L. (Amaranthaceae) obtained from a selected dump site in Akure, Nigeria