放射性核素活度浓度的测量和食用典型南印度膳食的承诺年有效剂量

Q4 Medicine

International Journal of Low Radiation Pub Date : 2014-05-23 DOI:10.1504/IJLR.2014.060909

D. D. Jayanthi, C. Maniyan, S. Perumal

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引用次数: 1

摘要

本研究旨在评价印度泰米尔纳德邦西南海岸居民因食用典型南印度膳食而产生的放射性核素活性浓度和年有效剂量。采集食品样品，用伽马能谱法测定了228Ra、40K、232Th和238U的活度浓度。日摄入量228Ra、40K、232Th和238U活性分别为1.34 ~ 2.98 Bq kg-1、27.7 ~ 88.7 Bq kg-1、5.4 ~ 11.3 Bq kg-1和2.05 ~ 4.94 Bq kg-1。在放射性核素的摄入中，消耗最高的是40K。食用南印度食物对个人的年有效剂量是根据食物中测量的放射性核素含量估计的。个体接受的年有效剂量在0.79至1.73毫西弗之间。

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Measurement of activity concentration of radionuclides and the committed annual effective dose due to the consumption of typical South Indian meal

The present study was carried out to evaluate the activity concentration of radionuclides and the annual effective dose received by the residents of south-west coast of Tamil Nadu, India, due to the consumption of typical South Indian meal. Food samples were collected and analysed by means of gamma spectrometry to measure the activity concentration of 228Ra, 40K, 232Th and 238U. The daily intake of 228Ra, 40K, 232Th and 238U activity ranged from 1.34 to 2.98 Bq kg–1, 27.7 to 88.7 Bq kg–1, 5.4 to 11.3 Bq kg–1 and 2.05 to 4.94 Bq kg–1, respectively. Among the intake of radionuclides, the highest consumption is that of 40K. The annual effective dose to individuals from the consumption of South Indian food was estimated on the basis of the measured radionuclide contents in the food. The annual effective dose received by the individuals ranged between 0.79 and 1.73 mSv.

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来源期刊

International Journal of Low Radiation Environmental Science-Health, Toxicology and Mutagenesis

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期刊介绍： The IJLR is a peer-reviewed journal dedicated to the publication of research articles, review papers and technical notes in all domains related to low-dose radiation, among which are the biological and health effects in humans and the biota, in vitro and in vivo research on low radiation effects, regulatory and policy aspects, risk estimation and public perception.