Natural radioactivity levels in commercialized bottled drinking water and their radiological quality assessment

Asaduzzaman, K. and Mannan, F. and Khandaker, Mayeen Uddin and Farook, Mohideen Salihu and Elkezza, A. and Amin, Yusoff Mohd and Sharma, S. (2016) Natural radioactivity levels in commercialized bottled drinking water and their radiological quality assessment. Desalination and Water Treatment, 57 (26). pp. 11999-12009. ISSN 1944-3994, DOI

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This work presents radiological data on most commonly sold bottled water brands in the urban areas of Bangladesh. A significant fragment of the population use bottled water as their source of daily water intake. It is known from the literature that some varieties of bottled waters contain natural radionuclides in higher concentration than the traditional municipal tap water. In this study, concentrations of naturally occurring radioactive materials, particularly 226Ra, 228Ra, and 40K, and its annual effective dose with its stochastic effects were determined in available brands of bottled mineral water manufactured in Bangladesh. The measurement was performed by gamma-ray spectroscopy using a hyper-pure germanium detector. The activity concentration of the radiologically important nuclides 226Ra and 228Ra were found within the permissible limits of 1 and 0.1 Bq l−1, respectively, recommended by World Health Organization (WHO) in almost all samples. The annual effective doses caused by natural radioactivity of 228Ra for the infants (0–1 year) and adolescent (12–17 year) groups exceeded the recommended WHO guideline level of 0.1 mSv y−1 for drinking water in most of the cases. Particularly for those age groups, the estimated doses are extremely high. In general, the carcinogenic risk due to natural radioactive doses for all bottled water samples were found below the acceptable limit of 10−3.

Item Type: Article
Uncontrolled Keywords: Bottled water; Natural radioactivity; HPGe γ-ray spectrometry; Annual effective dose; Lifetime cancer risk
Subjects: Q Science > QC Physics
R Medicine > RK Dentistry
Divisions: Faculty of Dentistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 21 Nov 2017 08:49
Last Modified: 18 Mar 2019 08:46

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