Background: Radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. It is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lu...

Mining generates significant amounts of waste that can represent a source contamination for areas close to the extraction area, generating negative impact both on environment and health people. This study aims evaluate radiological risk derived from exposure natural radionuclides contained in tailings Peruvian gold mines establish whether be used as raw materials building materials. The mine co...

The aim of the present study is to measure activity concentrations 226Ra, 222Rn, mass exhalation rate and annual effective dose radon in marble samples collected from Al-Bayda city local market –Libya. Samples were measured by using a low-background NaI (Tl) detector. average 226Ra 222Rn 72.57 Bq.kg-1 597.85 Bq.m-3.The vary 0.05-0.30 Bq.kg-1.S-1 with an 0.13 Bq.kg-1.S-1. was calculated under in...

background: radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. it is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lung disord...

Radon is one of many geophysical and geochemical phenomena that can be considered to be an earthquake precursor. Due to the non-linear dependence of earthquakes’ initial conditions, the question about the predictability of earthquakes often arises (Geller, 1997). The successful prediction of earthquakes is yet to be accomplished, in terms of their magnitude, location and time, and much effort h...

Natural radioactivity has been determined by means of a highly efficient thallium-doped sodium iodide detector in soil sample from surface vicinage “Kolaghat Thermal Power Plant” The activity concentration (specific activity) is found to vary 23.70 ± 3.41 33.90 4.33 Bqkg-1 for 226Ra, 6.67 2.01 21.60 2.11 232Th and that 40K 461.01 66.16 610.25 80.87 with expected value 29.26 3.50, 4.86 2.03 517....