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      • Abstract: found
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      226Ra, 232Th and 40K contents in water samples in part of central deserts in Iran and their potential radiological risk to human population

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          Abstract

          Background

          The radiological quality of 226Ra, 232Th and 40K in some samples of water resources collected in Anarak-Khour a desertic area, Iran has been measured by direct gamma ray spectroscopy using high purity germanium detector in this paper.

          Result

          The concentration ranged from ≤0.5 to 9701 mBq/L for 226Ra; ≤0.2 to 28215 mBq/L for 232Th and < MDA to 10332 mBq/L for 40K. The radium equivalent activity was well below the defined limit of 370Bq/L. The calculated external hazard indices were found to be less than 1 which shows a low dose.

          Conclusion

          These results can be contributed to the database of this area because it may be used as disposal sites of nuclear waste in future.

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          Most cited references10

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          The Saghand Region, Central Iran: U-Pb geochronology, petrogenesis and implications for Gondwana Tectonics

          J. Ramezani (2003)
          Article 0 comments Cited 28 times – based on 0 reviews     Review now
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            Evaluation of natural radioactivity in soil, sediment and water samples of Niger Delta (Biseni) flood plain lakes, Nigeria.

            E Agbalagba, R Onoja (2011)
            This paper presents the findings of a baseline study undertaken to evaluate the natural radioactivity levels in soil, sediment and water samples in four flood plain lakes of the Niger Delta using a hyper pure germanium (HPGe) detector. The activity profile of radionuclides shows low activity across the study area. The mean activity level of the natural radionuclides (226)Ra, (232)Th and (40)K is 20 ± 3, 20 ± 3 and 180 ± 50 Bq kg(-1), respectively. These values are well within values reported elsewhere in the country and in other countries with similar environments. The study also examined some radiation hazard indices. The mean values obtained are, 76 ± 14 Bq kg(-1), 30 ± 5.5 ηGy h(-1), 37 ± 6.8 μSv y(-1), 0.17 and 0.23 for Radium Equivalent Activity (Ra(eq)), Absorbed Dose Rates (D), Annual Effective Dose Rates (E(ff) Dose), External Hazard Index (H(ex)) and Internal Hazard Index (H(in)) respectively. All the health hazard indices are well below their recommended limits. The soil and sediments from the study area provide no excessive exposures for inhabitants and can be used as construction materials without posing any significant radiological threat to the population. The water is radiologically safe for domestic and industrial use. The paper recommends further studies to estimate internal and external doses from other suspected radiological sources to the population of the Biseni kingdom. 2011. Published by Elsevier Ltd.
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              Radium equivalent activity concentrations in concrete building blocks in eight cities in Southwestern Nigeria.

              I Farai, J Ademola (2004)
              The radioactivity concentrations of (226)Ra, (232)Th and (40)K were measured by using gamma ray spectroscopy in 130 concrete building blocks collected from block making sites in eight cities in Southwestern Nigeria. The results were used to compute the radium equivalent activity concentration for each city. The values of the concentrations of the primordial radionuclides varied widely within each city and among the cities. The weighted means for the cities range between 13.3 and 18.4, 28.2 and 71.6, and 176.2 and 336.8 Bq/kg for (226)Ra, (232)Th and (40)K, respectively. The city weighted means of radium equivalent activity concentrations for the eight cities range from 81 to 145 with a mean of 101 Bq/kg. The maximum for external hazard index was determined as 0.39. All the values are within the safety limits recommended by UNSCEAR [United Nations Scientific Committee on the Effects of Atomic Radiation 1982. Report to the General Assembly, with annexes. New York, United Nations.].
              Article 0 comments Cited 7 times – based on 0 reviews     Review now
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                Author and article information

                Contributors
                Elham Ehsanpour
                Mohammad Reza Abdi
                Mojtaba Mostajaboddavati
                Hashem Bagheri
                Journal
                Journal ID (nlm-ta): J Environ Health Sci Eng
                Journal ID (iso-abbrev): J Environ Health Sci Eng
                Title: Journal of Environmental Health Science and Engineering
                Publisher: BioMed Central
                ISSN (Electronic): 2052-336X
                Publication date Collection: 2014
                Publication date (Electronic): 1 May 2014
                Volume: 12
                Page: 80
                Affiliations
                [1 ]Department of Physics, Faculty of Science, University of Isfahan, Isfahan, Iran
                [2 ]Department of Nuclear Engineering, Faculty of Advanced Sciences & Technologies, University of Isfahan, Isfahan, Iran
                [3 ]Department of Geological Science, Faculty of science, University of Isfahan, Isfahan, Iran
                Article
                Publisher ID: 2052-336X-12-80
                DOI: 10.1186/2052-336X-12-80
                PMC ID: 4026116
                SO-VID: 1a609c99-9c70-4969-895c-bb3be863b683
                Copyright © Copyright © 2014 Ehsanpour et al.; licensee BioMed Central Ltd.
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

                History
                Date received : 15 October 2013
                Date accepted : 14 April 2014
                Categories
                Subject: Research Article

                Keywords: activity concentration,gamma spectrometry,water,anarak-khour,iran
                Data availability:
                Keywords: activity concentration, gamma spectrometry, water, anarak-khour, iran

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