Diatomite (diatomaceous earth) and clay minerals deposits from the mining basin Kolubara, Serbia, are natural materials with high economic potential in many fields. As received treated materials, diatomite were characterized using X-ray diffraction, mercury intrusion porosimetry, particle size distribution, scanning electron microscopy, Fourier-transform infrared spectroscopy. Activity concentr...

The concentrations of primordial radionuclides (226Ra, 232Th and 40K) in commonly used building materials (brick, cement and sand), the raw materials of cement and the by-products of coal-fired power plants (fly ash) collected from various manufacturers and suppliers in Bangladesh were determined via gamma-ray spectrometry using an HPGe detector. The results showed that the mean concentrations ...

The present study was carried out to determine the activity concentrations of 40K, 226Ra and 232Th in surface soil samples collected from twenty five different locations of Industrial Yanbu city located in western region of Saudi Arabia, using a NaI(Tl) gamma-ray spectrometer. The activity concentrations of 226Ra, 232Th and 40K in the soil samples from the studied area ranged from 25.21 Bq kg t...

to assess the environmental radioactivity levels and hence to determine the population exposure in kutubdia island, bangladesh the sediment samples were analyzed by using gamma ray spectrometry. in those sediment samples the average activity concentration of natural radionuclides 238u, 232th and 40k were found 15.39±1.67, 38.35±0.76 and 475.51±21.15 bq/kg respectively. the activity concentratio...

The activity concentrations of naturally occurring radionuclides in vegetables and peat soil were investigated to determine the transfer factors from obtained farms Klang Selangor. results showed that concentration ranges for 226Ra, 232Th, 40K vegetable 2.72-46.54 Bqkg-1, 9.01-54.84 19.22-477.76 respectively. various samples 0.41-3.41 0.02-3.56 16.22-317.49 soil-to-plant 0.01-0.67, 0.00-0.17, 0...

Lactarius delicious, insulsus, vellereus mantarlarının biyoaktif ve radyoaktif özellikleri araştırılmıştır bu amaçla Kastamonu ilinden toplanan mantarların protein toplam fenolik madde miktarları, antioksidan antimikrobiyal belirlenmiştir. Ayrıca mantarlardaki bazı eser element (Mg, Al, Ca, Mn, Fe, Co, Ni, Cu, Zn, Se, As, Cr, Cd) kurşunun üç izotopu (206Pb, 207Pb and 208Pb), doğal (238U, 232Th ...

introduction natural and artificial radionuclides are the main sources of human radiation exposure, which enter the food chain from the environment. radionuclides can affect human health by transferring from soil to plants and entering the human body. in this research study, we aimed to determine the activity concentrations of radionuclides and calculate the average annual committed effective d...

Tobacco samples were collected from different tobacco markets Antalya in Turkey. To calculate natural radionuclides activity concentration, counted for 86400 seconds by using high purity germanium (HPGe) detector. Activity concentrations of 226Ra, 232Th and 40K found higher than minimum detectable (MDA). 137Cs was not detected any sample. concentration range 83±15 Bqkg-1 to 325±45 Bqkg-1, 29±5 ...

Introduction Natural and artificial radionuclides are the main sources of human radiation exposure, which enter the food chain from the environment. Radionuclides can affect human health by transferring from soil to plants and entering the human body. In this research study, we aimed to determine the activity concentrations of radionuclides and calculate the average annual committed effective d...