Assessment of radiation dose due to 210Po in water and food samples of Chamarajanagar district, Karnataka, India.

IF 0.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Radiation protection dosimetry Pub Date : 2024-07-17 DOI:10.1093/rpd/ncae035

Bevinathalapura S K Lavanya, Shivachara N Namitha, Mohamed Hidayath, Mallupura S Chandrashekara

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Abstract

Groundwater is in direct contact with the soil and rocks that dissolve many compounds and minerals including uranium and its daughter products. 210Po is one of the decay products of 238U series that cause internal radiation dose in humans when consumed in the form of water and food, including sea food. Therefore, activities of 210Po have been studied in ground and surface water, and in food samples that are commonly used in Chamarajanagar region of Karnataka, India. The average 210Po concentration in bore well water samples and surface water samples are 3.21 and 1.85 mBq L-1, respectively. In raw rice and wheat, the average values of 210Po are 96 and 41 mBq kg-1, respectively. In millets and pulses, the average activity of 210Po is 157 and 79 mBq kg-1, respectively. Among food items, the highest activity of 1.3 kBq kg-1 is observed in marine crabs and the lowest activity of 2.6 mBq kg-1 is found in milk samples. The average ingestion dose due to 210Po in ground and surface water are 2.8 and 1.62 μSv y-1, respectively. The ingestion dose due to various food samples to the population is also calculated. Total ingestion dose due to 210Po to pure vegetarian population and general population are 38.09 and 590.80 μSv y-1, respectively. The concentration of 210Po in water samples and food samples of this region are in a comparable range with the world and Indian average values and lies well below the recommended guideline level.

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印度卡纳塔克邦 Chamarajanagar 地区水和食物样本中 210Po 导致的辐射剂量评估。

地下水与土壤和岩石直接接触，溶解了许多化合物和矿物质，包括铀及其子产物。210Po 是 238U 系列的衰变产物之一，以水和食物（包括海产品）的形式食用时会对人体造成内辐射剂量。因此，我们对印度卡纳塔克邦 Chamarajanagar 地区的地下水、地表水和常用食物样本中的 210Po 活性进行了研究。井水样本和地表水样本中 210Po 的平均浓度分别为 3.21 和 1.85 mBq L-1。生米和小麦中 210Po 的平均值分别为 96 和 41 mBq kg-1。黍和豆类的 210Po 平均活度分别为 157 和 79 mBq kg-1。在各种食物中，海蟹的放射性活度最高，为 1.3 kBq kg-1，牛奶样本的放射性活度最低，为 2.6 mBq kg-1。地下水和地表水中 210Po 的平均摄入量分别为 2.8 和 1.62 μSv y-1。此外，我们还计算了不同食物样本的摄入剂量。纯素食人群和普通人群摄入 210Po 的总剂量分别为 38.09 和 590.80 μSv y-1。该地区水样和食物样本中的 210Po 浓度与世界和印度的平均值相当，远低于建议的指导水平。

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来源期刊

Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

1.40

自引率

10.00%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.