Muhammad Rafique, Chand Shahzadi, Abdul Jabbar, Mumtaz Khan, Saeed Ur Rahman, Syed Shujahat Hussain Bukhari, Shahab Ahmed Abbasi, Nasar Ahmed
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引用次数: 1
摘要
本文介绍了一项研究的结果,以测量从巴基斯坦阿扎德克什米尔不同地区收集的药用植物样品中的总α,总β活性。采用ASC-950-DP无气高速计数器测定总α/β活性。测量的活度已被用来评估婴儿、1岁、5岁、10岁、15岁和成年人的年有效剂量与年龄有关。对于1.8 kg a-1的药用植物消耗率(MPCR), 1岁、5岁、10岁、15岁儿童和成年人的平均总α和β年承诺有效剂量(ced)低于世卫组织建议水平(290µSv a-1)和2000年联合国科委会报告的水平(0.3 mSv a-1)。目前的研究结果表明,除了MPCR为1.8 g a-1及更高值的婴儿接受的放射性核素外,与食用药用植物中的天然放射性核素有关的辐射危害是无关紧要的。
Measurement of age-dependent radiation ingestion doses due to gross alpha and gross beta exposure from medicinal plants.
This article presents the results of a study conducted to measure the gross alpha, gross beta activities in medicinal plant samples collected from different districts of Azad Kashmir, Pakistan. The ASC-950-DP gasless high-speed counter was used for the measurement of gross α/β activities. Measured activities have been used to assess age-dependent annual effective doses for infants, one-, five-, ten-, and fifteen-year-old and adult people. For a medicinal plant consumption rate (MPCR) of 1.8 kg a-1, the average gross alpha and beta annual committed effective dose (ACED) delivered to one-, five-, ten-, fifteen-year-olds and adults fall below the WHO recommended level (290 µSv a-1) and that reported in the UNSCEAR 2000 (0.3 mSv a-1) report. Results obtained for the current study show that the radiological hazard related to the consumption of natural radionuclides in medicinal plants is inconsequential with exception of the ACED delivered to infants at an MPCR of 1.8 g a-1 and higher values.
期刊介绍:
Isotopes in Environmental and Health Studies provides a unique platform for stable isotope studies in geological and life sciences, with emphasis on ecology. The international journal publishes original research papers, review articles, short communications, and book reviews relating to the following topics:
-variations in natural isotope abundance (isotope ecology, isotope biochemistry, isotope hydrology, isotope geology)
-stable isotope tracer techniques to follow the fate of certain substances in soil, water, plants, animals and in the human body
-isotope effects and tracer theory linked with mathematical modelling
-isotope measurement methods and equipment with respect to environmental and health research
-diagnostic stable isotope application in medicine and in health studies
-environmental sources of ionizing radiation and its effects on all living matter