![]() The rate of radon diffusion is found to depend mainly upon medium porosity. The radon levels at the depths of 1 m are nearly twice the levels at 0.5 m in theĮxperimented area. Results show: The radon exhalation rates were found to vary from 1.48 to 63.36 Bq m−2Ĭoncentration varies from 1 to 89 ppm, whereas Radium concentration in soil samples has been found to Were also measured for these samples as well as radium equivalent concentrations. Radon exhalation rate measurements employing (closed can technique ). CR-39 plastic track detector was used for , Sinai, Egypt, were measured using gamma spectrometer. The radiological effects from 21 soil samples collected from Wadi Nasib area of approximately 40 Conclusion: All the values of radium content in all samples under test were found to be quite lower than the permissible value of 370 Bq kg -1 recommended by Organization for Economic Cooperation and Development. ![]() From the results it can be noticed that The lowest value of 226Ra is 7 Bq kg -1 in Sand sample, while the highest value is 85 Bq kg -1 Ordinary Cement. h the radium content 226Ra results in all samples under test in increasing order of magnitude. Results: The radon concentration varies from 2.44-29 k Bq m -3 and the corresponding values of surface exhalation rates from 4.16-26.24 Bq m -2. Approach: This study provides an overview of measurements of radon exhalation rates for selected samples in Egypt were carried out using passive measuring techniques were measured by Can Technique using LR-115 type II plastic track detectors. It is a useful quantity to compare the relative importance of different sample of building materials and soil. Accurate knowledge of exhalation rate plays an important role in characterization of the radon source strength in some building materials and soil. Radon an inert radioactive gas whose predecessor in uranium, is emitted from soil beneath the house and from building materials. Problem statement: Uranium is a radiotoxic element found in trace quantities in alomost all natural accurring materials like soil, rock. The annual effective dose measured for this area exceeds the permissible values, especially for public, recommendations and precaution are suggested, and should be undertaken during any exploration processes or other works in areas of relatively high radioactive intensity. Uranium concentration varies from 1 to 89 ppm, whereas Radium concentration in soil samples has been found to vary from 2 to 114 ppm. The radon exhalation rate in these samples has been found to vary from 1.48 to 63.36 Bq m −2 h −1. ![]() CR-39 plastic track detectors have been used for the measurement of radon exhalation rate (closed can technique). Related papers Assessment of nat ural radioact ivit y and radon exhalat ion rat e in Sannur cave, east ern deser… mohamed mansy St udyingof Nat urally 2 Zeinab Saleh Soil radioact ivit y levels and radiat ion hazard assessment in t he highlands of nort hern Jordan Mohammad Awadallah Download a PDF Pack of t he best relat ed papers Abstract: The radiological effects from 21 one soil samples collected from Wadi Nasib Area, Sinai, Egypt, have been measured using gamma spectrometer.
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