HEALTH RISK ASSESSMENT OF HEAVY METAL CONTAMINATION OF CASSAVA GROWN IN A CEMENT PRODUCTION AREA.

Makanjuola, J.O and Aderinboye, O.E. (2019) HEALTH RISK ASSESSMENT OF HEAVY METAL CONTAMINATION OF CASSAVA GROWN IN A CEMENT PRODUCTION AREA. In: National Development Conference of The School of Pure and Applied Science, 2nd – 5th December, 2019, The Federal Polytechnic Ilaro, Ogun State.

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Abstract

Limestone mining and the manufacture of cement are examples of industrial activities that pollute the environment and cement production is a known source of heavy metals such as Cd, Cr, Cu, Pb and Zn. The aim of this study was to analyse cassava grown around a cement production area for heavy metal presence in order to determine the associated health risk in consumption. To achieve this, a Flame atomic absorption spectrophotometer was used to analyse cassava samples taken from three different locations around the cement factory for Ni, Cd, Cu, Pb and Zn. The metal concentrations were used to estimate the potential health risks; Daily Intake of Metal (DIM), Health Risk Index (HRI), Target Hazard Quotient (THQ) and Hazard Index (HI). The metal concentrations in the cassava samples ranged from 0.0464 mgkg-1 to 0.705 mgkg-1., with Zn having the highest concentration and Cu the least. The DIM calculated showed that the metals all had daily intake values below the standards given by regulatory bodies while the HRI,THQ and HI gave values less than the threshold of one indicating there may be no health risk associated with consuming cassava from these locations.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > QD Chemistry Q Science > QR Microbiology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr Taiwo Egbeyemi
Date Deposited:	11 May 2020 18:41
Last Modified:	11 May 2020 18:41
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/56

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