文章基本信息

标题：Assessment of Natural Radioactivity and Radiation Hazard in Soil Samples of Rajbari District of Bangladesh
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作者：R Khatun ; AHM Saadat ; MM Ahasan 等
期刊名称：Jahangirnagar University Environmental Bulletin
印刷版ISSN：2408-8560
出版年度：2013
卷号：2
页码：1-8
DOI：10.3329/jueb.v2i0.16324
语种：English
出版社：Department of Environmental Sciences Jahangirnagar University
摘要：Rajbari district of Bangladesh, have been studied and possible health effect were estimated. The experiment has been done by using gamma ray spectrometry system consisting of a HPGe detector coupled with MCA and associate electronics. The average natural radioactivities of 238 U, 232 Th and 40 K have been measured as 29.03±5.67 Bq/kg, 50.91±10.17 Bq/kg and 535.32±89.19 Bq/kg respectively. To estimate health effect due to the activity of those radionuclides, the radium equivalent activity (Ra eq ), external hazard index (H ex ), absorbed dose rate (D) and effective dose have been calculated and compared to the world average values. The results are also compared with the literature values reported for other regions of the world and found that the soil of the study area are not hazards by the radiation and does not pose any harmful effect to the environment. The outcome of this study may provide valuable information about radiation hazard and also may take part in the monitoring of environmental radioactivity. Jahangirnagar University Environmental Bulletin, Vol.2, 1-8, 2013 DOI: http://dx.doi.org/10.3329/jueb.v2i0.16324
关键词：Radionuclide;absorbed dose;external hazard index;radium equivalent activity;annual effective dose