The Effect of Temperature and Storage Time into the Bottled Drinking Water at Seiyun City in Hadhramout Governorate, Yemen

Abstract

Inductively Coupled Plasma Emission Technique (ICPE) was used to study the effect of temperature and storage time into the bottled drinking water at Seiyun City in Hadhramout Governorate, Yemen. Three tap water samples, collected randomly from different locations in this city, were used as study samples. The plastic containers of water were heated under the normal sunlight for 60 days, and it was stored for 40 days. Before heating and storage duration, the results analysis for three samples showed that the major and trace metals like (Sulfur, Boron, Calcium, Copper, Potassium, Magnesium, Sodium, Silicon, Zinc, and Lithium) were found at various concentrations. Also, the heavy and radioactive atoms such as (Cadmium, Strontium, Thallium, Barium, and Scandium) were detected at different values for all samples, due to the locations of samples and vital activities. After temperature and storage period, the obtained results for three samples proved that new trace and toxic metals, such as Selenium, Cerium, Holmium, and Ytterbium, were found at various amounts. Furthermore, the concentrations for other major, trace, and radioactive metals which mentioned above were changed after this physical process affected by heating and storage period, that may be associated with interaction between water and plastic, and storage duration, and all metals within the accepted ranges of the guideline-recommended values except Thallium.