Results 71 to 80 of about 54,522 (197)
Microbial Effects on Repository Performance [PDF]
This report presents a critical review of the international literature on microbial effects in and around a deep geological repository for higher activity wastes.
Humphreys, Paul +2 more
core
Investigation on food products contamination by Cesium-137 and Strontium-90, detection of content of natural radionuclides (Radium-226, Thorium-232, Potassium-40) in raw materials and finished products of building industry, monitoring of some ...
Natalia OMEL’CHENKO +3 more
doaj
RADIATION EXPOSURE FROM NATURAL RADIONUCLIDES IN BUILDING MATERIALS
Abstract Building materials from Iberian Peninsula (Portugal and Spain) were collected and analysed for 226Ra, 232Th and 40K using HPGe gamma-ray spectrometers. The results show that the highest mean value of 226Ra and 232Th activities are 2168 and 390 Bq kg−1, respectively, measured in zircon.
M J Madruga, C Miró, M Reis, L Silva
openaire +2 more sources
Natural radiactivity from building materials in Spain [PDF]
The industrial construction sector is very important in Spain. Building materials used in this industry are sources of radiation from natural radionuclides they contain.
Cabello, María +8 more
core
Atmospheric fluxes of radionuclides on monthly time-scale in Málaga (Spain) [PDF]
.- Bulk atmospheric deposition of gamma radionuclides ( 7Be, 210Pb and 40K ) has been measured at Málaga (4º 28´80′′ W; 36º 43′ 40′N) at a coastal Mediterranean station in the south of Spain, from January 2005 through December 2012 for monthly ...
Cañete, Sergio +5 more
core +1 more source
Oral and dermal exposure to natural radionuclides and heavy metals in water and sediments of Nile River, Qena, southern Egypt. [PDF]
Salahel Din K, Mahmoud F.
europepmc +1 more source
Concentrations of natural radionuclides in imported mineral substances
Levels of natural radionuclides, such as thorium-232 (232Th), radium-226 (226Ra) and potassium-40 (40K), were determined in about 2,000 samples of imported mineral substances using gamma spectrometry. The maximum concentration levels of 232Th, 226Ra and 40K were 1,260 +/- 54, 13,400 +/- 94 and 1,256 +/- 260 Bq kg(-1), respectively, in zirconium ...
M, Ghiassi-Nejad +4 more
openaire +2 more sources
At present, the dose rate of gamma radiation from technogenic radionuclides in the territories contaminated as a result of the Chernobyl accident has significantly decreased and, in many cases, is comparable to the dose rate of gamma radiation from ...
V. P. Ramzaev, A. N. Barkovsky
doaj +1 more source
Quantification of radiological hazards associated with natural radionuclides in soil, granite and charnockite rocks at selected fields in Ekiti State, Nigeria. [PDF]
Isinkaye MO +10 more
europepmc +1 more source
Naturally occurring radionuclides and Earth sciences
Naturally occurring radionuclides are used in Earth sciences for two fundamental purposes: age determination of rocks and minerals and studies of variation of the isotopic composition of radiogenic nuclides. The methodologies that are in use today allow us to determine ages spanning from the Earth's age to the late Quaternary.
openaire +3 more sources

