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Simulating The Concentration Of Some Heavy Metals In Mista-Ali River (Mining Pond) In Jos Nigeria
[Full Text]
AUTHOR(S)
T.M. Akpomie, E.O.Ekanem, M.M. Adamu
KEYWORDS
Key Words; Simulation, forecasting, Concentration, modelling, data input
ABSTRACT
ABSTRACT: The Concentrations of five dissolved heavy metals, viz; Iron (Fe), Zinc (Zn), Cadmium (Cd), Copper (Cu) and Lead (Pb) in Mista-Ali River were determined using the atomic absorption spectrometry. With the aid of Minitab computer software, these concentrations were then modelled intoquadratic-time series model (Y= a + bt – ct2) and a pH and temperature-dependent regression models [Y= β 0 + β 1 pH + β 2 T (⁰C)] for each metal. These models gave insights on the forecast and predictability and the bioaccumulation or reduction of these metals in the river.
REFERENCES
1. www.journals.elsevier.com/chemometrics.
2. Yucesan, E., Chen, C.H., Snowdon, J.L. (2002). Component-Based Simulation modelling, in Proceedings of the 2002 Winter Simulation Conference, 243-249
3. McGraw-Hill, (2002), “Simulation and modelling”. Encyclopaedia of Science and technology,(10th Ed)3
4. Hartman,S.(2005).The World as a process: Simulations in the Natural and Social Sciences. J. of philosophy and science, viewed in http//philsci-archive.edu/id/eprint/2412
5. Tofallis, C (2009). “Least-square Percentage Regression”. Journal of Modern Applied Statistical Methods 7: 526-534
6. Meade, N., and Islam, T (1995).“ Prediction Interval for Growth Curve Forecasts”. Journal of Forecasting, 14, 413-430
7. Minitab 11, (2006), viewed in www.minitab.com
8. Douglas, H. (2009). "The Failure of Risk Management: Why It's Broken and How to Fix It". John Wiley & Sons ISBN 978-0-470-38795-5:.168-195
9. Rubinstein, R. Y., Kroese, D. P. (2007). Simulation and the Monte Carlo Method (2nd ed).New York, John Wiley & Sons. ISBN 9780470177938: 87-119
10. Robert, C. P., Casella, G. (2004). Monte Carlo Statistical Methods(2nd ed.), New York: Springer. ISBN 0387212396 : 341-410
11. Radojevic, M and Bashkin, V.N. (1999).“Practical Environmental Analysis”, The Royal Society of Chemistry, Cambridge, 466
12. Floyd, W.B., Hezekiah, S. (1997). Analysis of coal ash by atomic absorption spectrometric and spectrophotometric methods. In Methods for sampling and inorganic analysis of Coal,US Geological Survey Bulletin1823. Golightly, D.W., Simon F.O. (Ed).1-20.
13. Papafilippaki, A.K., Kotti, M.E. and Stavroulakis, G.G. (2008).Seasonal variations in dissolved heavy metals in the Keritis River, Chania, Greece.Global nest journal. 10320-325.
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