منابع مشابه
Soil availability, plant uptake and soil to plant transfer of 99Tc--a review.
The fission yield of 99Tc from 239Pu and 235U is similar to that of 137Cs or 90Sr and it is therefore an important component of nuclear weapons fall-out, nuclear waste and releases from nuclear facilities. There is particular current interest in 99Tc transfer from soil to plants for: (a) environmental impact assessments for terrestrial nuclear waste repositories, and (b) assessments of the pote...
متن کاملBioavailability of 99Tc to a macrophyte of the Yenisei River
The experiments on accumulation of 99Tc by Elodea biomass showed that 99Tc activity concentration can reach 120± 6Bq/g, with the concentration factor for 99Tc 2700± 500 L/kg. In experiments on 99Tc release, over 504 h about 82% of the total 99Tc activity was released into the water from plant biomass; most of 99Tc was released within the first 192 h. Results of chemical fractionation of the bio...
متن کاملInvestigating Effects of Water Transfer Project from Oman or (Persian Gulf) to Desert Ecosystem of Yazd Province Using SWOT Analysis
The issue of water transfer from the high seas (Oman and the Persian Gulf) to Yazd province has been very controversial in recent years. Therefore, it is necessary to examine the infrastructures and capacities needed to implement such projects in the country in order to identify the deficiencies and shortcomings and to take effective measures to address these issues. In this study, using SWO...
متن کاملPhytobiotics: alternatives to antibiotic growth promoters in monogastric animal feeds
Phytobiotics represent a wide range of bioactive compounds that can be extracted from various plant sources. In recent years, some interesting and novel applications of phytobiotics in the production and well– being of monogastric animals have emerged, and these aspects are reviewed in the present paper. Recent studies at the University of New England indicate that water–soluble carbohydrate ex...
متن کاملUptake kinetics of 99Tc in common duckweed.
The uptake of the nuclear waste product technetium-99 was studied in common duckweed (Lemna minor). In addition to measurements, a model involving two compartments in duckweed with different chemical forms of technetium was derived. The model was tested by chemical speciation, i.e. differentiating between reduced Tc-compounds and Tc(VII)O(4)(-). The TcO(4)(-) concentrations measured were in goo...
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ژورنال
عنوان ژورنال: Radioprotection
سال: 2002
ISSN: 0033-8451,1769-700X
DOI: 10.1051/radiopro/2002068