Natural radioactivity and hazard-level assessment of Portland cements in Turkey
| Autor: | Mehmet Altun, Bektas Karakelle, Ugur Emre Temelli, Nuri Can, Semih Nemlioglu, Naim Sezgin |
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| Rok vydání: | 2017 |
| Předmět: |
Cement
Chemistry Health Toxicology and Mutagenesis Radiochemistry Mean value Public Health Environmental and Occupational Health chemistry.chemical_element 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 030218 nuclear medicine & medical imaging 0104 chemical sciences Analytical Chemistry Radium 03 medical and health sciences 0302 clinical medicine Nuclear Energy and Engineering Activity concentration Radiology Nuclear Medicine and imaging Spectroscopy Natural radioactivity Nuclear chemistry |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 314:941-948 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-017-5476-7 |
| Popis: | The natural radioactivity levels and some radiological parameters of Turkish Portland cements (PC) originated in various regions were determined in this study. The activity concentration of cement samples for 226Ra, 232Th, and 40K were measured using a gamma-ray spectrometer with high purity germanium radiation detector. The PC samples had activity concentrations of 33.0, 16.7, and 239.5 Bq kg−1 for 226Ra, 232Th, and 40K, respectively. The mean value of radium equivalent value (Raeq) was found to be 75.4 Bq kg−1. The radium equivalent values in the cement samples were lower than the acceptable level of 370 Bq kg−1. The calculated radiological parameters were found to be below the acceptance levels. |
| Databáze: | OpenAIRE |
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