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Abstract

Three samples of Zumzum water were collected from Mecca for 3 years (20011, 20012 & 20013 respectively). Chemical, physical & biological properties of these 3 samples were studied by reliable methods according to the city water (tap water) after 1, 2 and 3 years of storage. The physical study shows that no change in tastes, odor, color and pH of these 3 samples, also chemical study shows that there is slightly increase in calcium and magnesium ions more than the tap water which leads to understand why this water refreshes tired Hajjes. But more significantly, the water has no biological or vegetative growth in all samples, in spite of stored for1, 2 and 3 years that make this water reliable for drinking our research aims to examine the composition of tap water and Zamzam water after a storage period of three years. Additionally, we seek to assess their quality in accordance with international drinking water standards.

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