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Current Topics in Toxicology   Volumes    Volume 16 
Abstract
Assessment of toxicity of heavy metals in fourteen leafy vegetables in Ekiti State major markets: Health implications
Adeolu Jonathan Adesina, Olayinka Abidemi Ibigbami, Abdul Ademola Olaleye, Mercy Ayomadewa Olatunya, Sunday Dele Oyeyemi, Olugbenga Kayode Popoola, Abiodun Folasade Akinsola, Suleman Adeoye Olagboye, Ayinde Yusuff Gbolagade, Olajide Ayodele
Pages: 157 - 168
Number of pages: 12
Current Topics in Toxicology
Volume 16 

Copyright © 2020 Research Trends. All rights reserved

ABSTRACT
 
This study assesses heavy metals’ concentrations in fourteen leafy vegetables from popular markets in Ekiti State, Southwest, Nigeria using atomic absorption spectrophotometer (Buck Scientific Model- 200A/210, Norwalk, Connecticut 06855). The results (mg/kg) were: Cd (0.0001-0.540), Mn (0.00012-0.024), Pb (0.0001-0.0016), Cu (2.60-8.07), Zn (6.80-19.7) and Fe (3.23-10.9). The values were generally lower than the joint FAO/WHO standards for food additives except for Zn in all the vegetables. Generally, estimated daily intakes were all below the tolerable daily intake for both adults and children set by FAO, WHO and USEPA. EDI/Df of Cu for all the vegetables was between 3.75 and 26.3 times higher than the corresponding Df. For adults and children, HI and TCR, 0.208-3.18 and 4.48e-6-0.247, indicated low to moderate carcinogenic health risks. Excess intake of these vegetables on regular basis is a matter of concern for heavy metal toxicity and non-carcinogenic health risks.
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