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Original Research Article

Potential human health risk assessment of heavy metals intake through consumption of fluted pumpkin (Telfairia occidentalis) purchased from major markets in Calabar Metropolis, Nigeria

1*Udeme U. Udofia, 1Udiba U. Udiba, 2Akpan E. R. and 2Antai E. E.


1Department of Zoology and Environmental Biology, University of Calabar, Calabar, Nigeria.
2Institute of Oceanography, University of Calabar, Calabar, Nigeria.

*Corresponding Author udiba.udiba(at)yahoo.com; udibaudiba(at)unical.edu.ng

Udeme U. Udofia

Udiba U. Udiba

Akpan E.R

Antai E. E


Article Number: ibspr.20.010  |   Pages: 85-97  |   Vol. 8 (5), November 2020   |   DOI: https://doi.org/10.15739/ibspr.20.010

 Received: October 5, 2020  Accepted: November 13, 2020  Published: November 21, 2020

Abstract

The potential human health hazards of lead, cadmium, chromium and nickel via the consumption of Telfairia occidentalis leaves purchased from open markets in Calabar were investigated. Thirty six (36) composite samples purchased from 180 vendors between June, 2019 and August, 2019 were used for the study. Metals contents were determined using Shimadzu Atomic Absorption Spectrophotometer (Model AA-6800, Japan) after wet digestion. The ranges of concentrations (mg/kg dw) were Pb (0.13-0.28), Cd (0.03-0.14), Cr (0.32-0.81) and Ni (2.22-3.01). Average concentrations were below FAO/WHO, European Food Safety Authority and Commission of European Communities maximum permissible limits except for nickel. However, the average Estimated Daily Intake (EDI) of the metals were above the Recommended Daily Intake (RDI) and the Upper Tolerable Daily Intake (UL) except for lead and nickel. Average Target Hazard Quotient (THQ) of the metals were above 1.00, chromium being the only exception while the Hazard Index (HI) for each market was greater than unity. Consumption of Telfairia occidentalis purchased from major markets in Calabar thus poses toxicological risk. Considering the potential toxicity/cumulative behavior of metals and rate of vegetable consumption, more research on vegetables grown within the area is strongly recommended.

Keywords:

Health hazards, Telfairia occidentalis, lead, cadmium, chromium, nickel, Calabar

How to Cite this Article

Udofia UU, Udiba UU, Akpan ER, Antai EE(2020).Potential human health risk assessment of heavy metals intake through consumption of fluted pumpkin (Telfairia occidentalis) purchased from major markets in Calabar Metropolis, Nigeria.Issues Biol. Sci. Pharma. Research Vol.8(5):85-97.

Author(s) retain the copyright of this article. Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.