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International Journal of Radiation Research، جلد ۱۴، شماره ۴، صفحات ۳۷۳-۳۷۷
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چکیده فارسی مقاله
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عنوان انگلیسی Radiological risk analysis of sediment from Kutubdia island, Bangladesh due to natural and anthropogenic radionuclides
چکیده انگلیسی مقاله To assess the environmental radioactivity levels and hence to determine the population exposure in Kutubdia Island, Bangladesh the sediment samples were analyzed by using gamma ray spectrometry. In those sediment samples the average activity concentration of natural radionuclides 238U, 232Th and 40K were found 15.39±1.67, 38.35±0.76 and 475.51±21.15 Bq/kg respectively. The activity concentration of 238U and 232Th were less than the world average. But the activity concentration of 40K was higher than the world average values. These results were used to calculate the radiological hazard parameters like radium equivalent activities (Raeq), representative level index (Iγr). Due to natural radionuclides in sediment, the effective annual outdoor dose in the study area was 0.07 mSv; which is within the accepted range of 0.07 mSv. The average value of radium equivalent activities (Raeq) and representative level index (Igr) were found to be 128.03±12.08 Bq/Kg and 0.96±0.09 Bq/Kg which were greater than the world average. The anthropogenic radionuclide 137Cs was also found in few samples. The average activity concentration of 137Cs was 1.64±0.20 Bq/kg which is lower than the world average. The obtained experimental data of this research work would be useful to assess the population exposure from radionuclides in sediment as well as base line data of natural radioactivity in this island.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله q m راشد نظام الدین | q m rashed nizam
department of physics, university of chittagong, chittagong-4331, bangladesh


m رحمان | m. rahman
department of physics, university of chittagong, chittagong-4331, bangladesh


محمدکاظم tafader | m k tafader
institute of marine science, university of chittagong, chittagong -4331, bangladesh


m ظفر | m. zafar
institute of marine science, university of chittagong, chittagong -4331, bangladesh


a k m s i bhuian | a k m s i bhuian
radioactivity testing and monitoring laboratory, bangladesh atomic energy commission, chittagong medical college campus, chittagong, bangladesh


رضاعلی خان | r a khan
radioactivity testing and monitoring laboratory, bangladesh atomic energy commission, chittagong medical college campus, chittagong, bangladesh


m کمال | m. kamal
radioactivity testing and monitoring laboratory, bangladesh atomic energy commission, chittagong medical college campus, chittagong, bangladesh


محمد ابراهیم چاودری | m i chowdhury
radioactivity testing and monitoring laboratory, bangladesh atomic energy commission, chittagong medical college campus, chittagong, bangladesh


محمدنقی عالم | m n alam
radioactivity testing and monitoring laboratory, bangladesh atomic energy commission, chittagong medical college campus, chittagong, bangladesh
نشانی اینترنتی http://ijrr.com/browse.php?a_code=A-10-1-642&slc_lang=en&sid=en
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/42/article-42-311167.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده مرور و بررسی کلی
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