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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Saturday 19 October 2019

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Determination of Some Essential and Toxic Metals in Low Grade Coal and drinking water in Chilga, Amhara region, Ethiopia


Volume 17, Issue 2, August 2015, Pages 412–422

 Determination of Some Essential and Toxic Metals in Low Grade Coal and drinking water in Chilga, Amhara region, Ethiopia

Tsegu Lijalem, Arul Jeevan, Tariku Bekele, and Abrha Berhe

Original language: English

Received 16 May 2015

Copyright © 2015 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


The levels of selected essential (Ca, Fe, Zn, Mn, Cr and Cu) and potentially toxic (Cd and Pb) metals were analyzed using flame atomic absorption spectrophotometer (FAAS) from low grade coal and drinking water collected from Chilga, Ethiopia using composite sampling technique by developing an optimized digestion procedure and recovery tests. The average concentrations from the digests were found as Ca (3176.6 ± 12.3 μg/g), Fe (704 ± 3.2 μg/g), Zn (365 ± 5.8 μg/g), Mn (120.2 ± 0.6 μg/g), Cr (53 ± 0.33 μg/g), Cu(167 ± 0.1 μg/g), Pb (14.5 ± 0.12 μg/g) and Cd (0.8 ± 0.04 μg/g) in low grade coal and Ca (142.81 ± 0.05 μg/mL), Fe (9.632 ± 0.06 μg/mL), Zn (18.08 ± 0.4 μg/mL), Mn (3.21 ± 0.3 μg/mL), Cr (3.01 ± 0.02 μg/mL) and Cu(4.165 ± 0.004 μg/mL) in drinking water composite samples. While Pb and Cd were both not detected (ND) for the method used in drinking water sample located in Chilga near the coal area selected. Fe and Zn were obtained predominantly in coal and drinking water respectively.

Author Keywords: Low grade coal, water, digestion, optimization procedure, % recovery test, toxic metals, essential metals, FAAS.


How to Cite this Article


Tsegu Lijalem, Arul Jeevan, Tariku Bekele, and Abrha Berhe, “Determination of Some Essential and Toxic Metals in Low Grade Coal and drinking water in Chilga, Amhara region, Ethiopia,” International Journal of Innovation and Scientific Research, vol. 17, no. 2, pp. 412–422, August 2015.