Radioactivity of buildings materials available in Slovakia

1st International Conference on Advances in Environmental Engineering

生态环境科学

Singovszka, E.^1 ; Estokova, A.^1 ; Mitterpach, J.^2

Technical University of Kosice, Faculty of Civil Engineering, Institute of Environmental Engineering, Kosice, Slovakia^1

Technical University in Zvolen, Faculty of Ecology and Environmental Sciences, Department of Environmental Engineering, Zvolen, Slovakia^2

关键词: Absorbed dose rate;    Buildings materials;    Closed environment;    Industrial by-products;    Natural radiation exposure;    Natural radioactivity;    Potential risks;    Radon activity concentration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/92/1/012054/pdf
DOI  :  10.1088/1755-1315/92/1/012054

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the last decades building materials, both of natural origin and containing industrial by-products, have been shown to significantly contribute to the exposure of the population to natural radioactivity. As a matter of fact, neither the absorbed dose rate in air due to gamma radiation nor the radon activity concentration are negligible in closed environments. The soil and rocks of the earth contains substances which are naturally radioactive and provide natural radiation exposures. The most important radioactive elements which occur in the soil and in rocks are the long lived primordial isotopes of potassium (40K), uranium (238U) and thorium (232Th). Therefore, additional exposures have to be measured and compared with respect to the natural radiation exposure. Further, it is important to estimate the potential risk from radiation from the environment. The paper presents the results of mass activities of226Ra,232Th a40K radionuclides in cement mortars with addition of silica fume. The gamma index was calculated as well.