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International Journal of Radiation Research، جلد ۹، شماره ۲، صفحات ۷۷-۸۷
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عنوان انگلیسی Assessment of radiological hazards due to soil and building materials used in Mirpur Azad Kashmir Pakistan
چکیده انگلیسی مقاله Background: Health hazards associated with exposure due to the natural radioactivity which is a part of our physical environment are of great concern. In order to assess the risks associated with exposure due to the natural radioactivity in soil and building materials, extensive studies have been carried out all over the world. The most commonly encountered radionuclide’s are 238U, 232Th, their decay products and 40K. Materials and Methods: In order to study the concentration of these radionuclides soil, sand, gravel aggregates, bricks and marble, samples were collected from different sites and local suppliers of the district Mirpur, Azad Kashmir (Pakistan). 226Ra, 232Th, and 40K activities in the collected samples were measured using HPGe detector. The measured specific radioactivity concentration of 226Ra, 232Th and 40K in the studied samples ranged from 10 ±1 to 47 ± 2, 18 ± 1 to 75 ± 4 and 40 ± 3 to 683 ±3 Bq.kg-1, respectively. Results: From the measured activity concentration, radium equivalent activity, external and internal hazard indices, gamma and alpha indices, terrestrial absorbed dose and annual effective dose were calculated. Maximum value of radium equivalent activity of 197.1 ± 9 Bq.kg-1 was observed in soil sample whereas minimum value of 45.9 ± 2 Bq.kg-1 was found in gravel aggregates. Relatively higher mean values of hazard indices were found in brick samples. Annual effective dose varied from 0.06 ± 0.01 to 0.47 ± 0.02 mSv.y-1. Conclusion: Current values of annual effective dose, radium equivalent activity and hazard indices have been found to be within the recommended limits. Iran. J. Radiat. Res., 2011 9(2): 77-87
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نویسندگان مقاله m rafique | m. rafique
department of physics, university of azad jammu amp;amp; kashmir muzaffarbad, azad kashmir, pakistan


h رحمانی | h. rehman
department of physics, university of azad jammu amp;amp; kashmir muzaffarbad, azad kashmir, pakistan


matiullah | matiullah
physics division, pinstech, p.o. nilore, islamabad, pakistan


f مالک | f. malik
physics division, pinstech, p.o. nilore, islamabad, pakistan


m u راجپوت | m u rajput
physics division, pinstech, p.o. nilore, islamabad, pakistan


سیدیوسف رحمان | s u rahman
department of physics, comsats institute of information technology, islamabad, pakistan


محمدحسین rathore | m h rathore
akmidc, muzaffarabad, azad kashmir, pakistan
نشانی اینترنتی http://www.ijrr.com/browse.php?a_code=A-10-1-387&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده تحقیق بدیع
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