[PDF] Top 20 Vertical distribution of natural radionuclides in soils

... Low-level alpha spectrometry techniques using semiconductor de- tectors (PIPS) and liquid scintillation counters (LKB Quantulus 1220 TM ) were used in order to determine the activity concentration of 238 U, 232 Th, 234 ... See full document

... of natural radioactivity from human activities (TENORM), human being present in such areas would be exposed to additional radiation from these natural ...those radionuclides, radium-226 ( 226 Ra, ... See full document

... Anthropogenic activities like coal mining and coal-fueled electricity production may increase content of natural radionuclides in soils. Sites, where such activities are carried out, are included in ... See full document

... Direct measurement of gamma rays (non-destructive method) was measured by hyper pure Germanium detector (HPGe). The spectrometry system gives us a longer wide photo-peak spectrum. It consists of co-axial and produced in ... See full document

... 6. Muhammad, Musa Auwal; Idris, Isa Funtua; Simon, Peter Malam and Arabi, Suleiman Abdullahi, “Distribution of Gamma-Emitting Radionuclides in Soils around the Centre for Energy Research and Training ... See full document

... The average absorbed dose rate in Lake Bosomtwe was found to be 15.452.00 nGy/h and 10.444.10 nGy/h for Bui Dam, both being lower than the acceptable international value of 59.00 nGy/h in sediments (UNSCEAR, 2000). The ... See full document

... One should consider the use of ameliorants and mineral fertilizers, especially phosphoric and potassium as the main source of contamination of soils of agricultural meaning with heavy metals. In the opinion of ... See full document

... of radionuclides supplies by the International Energy Agency (IAEA), Vienna, Austria and the Isotope Products Labo- ratories, Burbank California, ...background distribution from pulse-height spectra of both ... See full document

... The radionuclides present in the environment transfer to fruits through (i) uptake from soil through roots and (ii) direct absorption through aerial parts of the ...These radionuclides, when accumulated ... See full document

... The databases of relative radionuclide concentrations we have collated also hold other, perhaps more subtle, insights that might be useful for post-accident decontamination of soils. For example, most of the ... See full document

... the natural sample, which is lost when the soil is subjected to a BS1377- 2 (1996) particle size distribution ...size distribution suggesting this ... See full document

... In order to assess any radiological hazard, the exposure to radiation arising from radionuclides present in soil and effluents was determined in terms of many parameters. Different known radiation health hazard ... See full document

... of soils in forestlands were also significantly higher than in croplands, although tea plantation and bamboo forest had a higher BD, which contributed to higher SOC ...after natural forest ... See full document

... peak strongly at 4-3@, the d n sand fraction in the upper brickearth. The Sites Selected for Detailed Study. In this section the main textural variations found in the. upper and lower [r] ... See full document

... floating. Distribution of macrophytes with a special reference to Seagrass were studied in 16 sampling station covering a all the major ecological sector ... See full document

... other soils are characterized by the highest number of species which are the part of phytophages – ...in soils of the Forest Kodry ...in soils of the Forest Kodry ... See full document

... global distribution of meridional components of lunar vertical deflections has been shown in Figure ...complicated distribution patterns, which are positive-negative-positive-negative (from west to ... See full document

... The CSIRO Division of Soils data 274 profiles and recent chemical data for the Coal River 22 profiles and Lake River 32 profiles areas suggest that many duplex soils with bleached A2 hor[r] ... See full document

... The average annual committed effective doses due to the ingestion of 40 K in the medicinal plant are also pre- sented in Table 2. The average annual committed effective dose varied from 0.00138 ± 0.00011 to 0.00985 ± ... See full document

... This study shows a positive linearity relationship between gamma dose rate vs Raeq with R2 value is 0.2. The R2 value for that graph is very low and it means the relationship between gamma dose rate and Raeq is weak. The ... See full document