Citation
Azlan, Azrina and Khoo, Hock Eng and Idris, Mohd Aizat and Ismail, Amin and Razman, Muhammad Rizal
(2011)
Major inorganic elements in tap water samples in Peninsular Malaysia.
Malaysian Journal of Nutrition, 17 (2).
pp. 271-276.
ISSN 1394-035X
Abstract
Introduction: Quality drinking water should be free from harmful levels of impurities such as heavy metals and other inorganic elements. Methods: Samples of tap water collected from 24 locations in Peninsular Malaysia were determined
for inorganic element content. Minerals and heavy metals were analysed by spectroscopy methods, while non-metal elements were analysed using test kits. Results: Minerals and heavy metals determined were sodium, magnesium, potassium, calcium, chromium, manganese, iron, nickel, copper, zinc, arsenic, cadmium and lead while the non-metal elements were fluoride, chloride, nitrate
and sulphate. Most of the inorganic elements found in the samples were below the maximum permitted levels recommended by inter-national drinking water standard limits, except for iron and manganese. Iron concentration of tap water
from one of the locations was higher than the standard limit. Conclusion: In general, tap water from different parts of Peninsular Malaysia had low concentrations of heavy metals and inorganic elements.
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