高原邦潘克辛地区地下水中总α和总β活性浓度及承诺有效剂量的调查。

Akila Simdet, W. Mangset, Daburum Hosea, A. Musa
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引用次数: 0

摘要

本研究评价了北纬9°20′0”、东经9°27′0”的高原邦潘克辛地区自然水体中α和β释放放射性核素的总活性。随机抽取10个地下水样本,包括5个井水和5个钻孔水。使用充气比例计数器(mpc2000双荧光粉)分析和计算样品的总α和β活性。结果表明,井水中总α和β的平均值分别为0.01662±0.004和5.8584±0.1994 Bg/l。钻孔水总α活度均值为0.00514±0.003,β活度均值为2.1358±0.212Bq/l。大多数样本的α活度低于世卫组织指导值0.5 Bq/l, β活度高于指导值1.0 Bq/l。估计了婴儿、儿童和成人的年承诺有效剂量(CED)。各同龄组井水摄入的平均CED分别为0.00666、0.01334、0.26668、2.3534、2.27312、9.4056 mSv/年,钻孔摄入的平均CED分别为0.00204、0.10414、0.0026、0.85752、1.71504、3.4301 mSv/年。结果显示,大部分地区的β活性值均高于国际放射防护委员会可接受的0。l mSv /年。可以得出结论,这些地点对一般公众存在重大的辐射危害,这可能是由于研究区域的地质和放射性核素与水的直接接触。文章信息文章历史:收稿日期2019年5月10日收稿改稿XX接收日期2019年8月1日发布日期XX可在线查阅XX
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Gross alpha and Gross Beta activity Concentrations in Groundwater and Committed Effective Dose in Pankshin LGA, Plateau State.
The study evaluate gross activities of alpha and beta emitting radionuclides present in naturally occurring water bodies in Pankshin area of Plateau state covered by 9° 20’ 0”North, 9° 27’ 0” East. Ten groundwater samples comprising five well water and five borehole water were drawn randomly. The samples were analyzed and counted for gross alpha and beta activities using Gas filled proportional Counter (MPC 2000 Dual Phosphor). The results showed that the mean value for gross alpha and beta in well water are 0.01662 ± 0.004 and 5.8584 ± 0.1994 Bg/l, respectively. For borehole water, the mean value for gross alpha and beta activity are 0.00514 ±0.003 and 2.1358 ± 0.212Bq/l. Most of the samples show lower values than the WHO guide line value of 0.5 Bq/l for alpha activity and higher activities above the guideline value of 1.0 Bq/l for beta activity. The annual committed effective dose (CED) to infants, children, and adults were estimated. The mean CED due to intake of well water are 0.00666, 0.01334, 0.26668, 2.3534, 2.27312, and 9.4056 mSv/year and the mean CED due to intake of borehole are 0.00204, 0.10414, 0.0026, 0.85752, 1.71504, and 3.4301 mSv/year, respectively, for all peer groups. The results shared elevated values for beta activity in most of the location above the International commission for Radiological Protection acceptable standard of 0.l mSv/year. It can be concluded that there is a significant radiological hazards to the general public in these locations which may be attributed to the geology and the direct contact with water by the radionuclides in the study area. ARTICLE INFO Article history: Received 10 May 2019 Received in revised form XX Accepted 01 August 2019 Published XX Available online XX
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