alexa Total Excess Lifetime Cancer Risk Estimation from Enhanced Heavy Metals Concentrations Resulting from Tailings in Katsina Steel Rolling Mill, Nigeria
ISSN: 2169-0022

Journal of Material Sciences & Engineering
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Research Article

Total Excess Lifetime Cancer Risk Estimation from Enhanced Heavy Metals Concentrations Resulting from Tailings in Katsina Steel Rolling Mill, Nigeria

Bello S1*, Muhammad BG1 and Bature B2

1Department of Physics, Faculty of Natural and Applied Sciences, Umaru Musa Yar’adua University Katsina, Nigeria

2Department of Mathematics, Faculty of Natural and Applied Sciences, Umaru Musa Yar’adua University Katsina, Nigeria

*Corresponding Author:
Suleiman Bello
Department of Physics
Faculty of Natural and Applied Sciences
Umaru Musa Yar’adua University Katsina, Nigeria
Tel: +234-8166791940
E-mail: [email protected]

Received Date: May 12, 2017; Accepted Date: May 20, 2017; Published Date: May 30, 2017

Citation: Bello S, Muhammad BG, Bature B (2017) Total Excess Lifetime Cancer Risk Estimation from Enhanced Heavy Metals Concentrations Resulting from Tailings in Katsina Steel Rolling Mill, Nigeria. J Material Sci Eng 6: 338. doi: 10.4172/2169-0022.1000338

Copyright: © 2017 Bello S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Soil samples were randomly collected from the dump-yard of Katsina steel rolling mill and were analyzed for the presence and concentrations of the carcinogenic heavy metals namely: Chromium (Cr), Arsenic (As), Cadmium (Cd), Cobalt (Co) and Lead (Pb) using flame atomic absorption spectrophotometry instrumental method. The obtained concentrations were used to estimate the excess lifetime cancer risk due to exposure from these metals using models provided by the United State Environmental protection Agency for the population ages. The total estimated excess lifetime cancer risk due to exposure from these heavy metals via ingestion, inhalation and dermal pathways was found to be in the range of 2.73E-04 to 9.23E-07 for children, 6.07E-07E-07 to 5.64E-02 for adults and were majorly contributed by Chromium (Cr). These range clearly indicated the existence of values far above the USEPA recommended threshold of 1.00E-06 and consequently indicating that there is high risk of lifetime cancer development in the inhabitants around the study area.

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