title: Investigation of the activity level and radiological impacts of naturally occurring radionuclides in blast furnace slag.
abstract: The activity level and possible radiological impacts of naturally occurring radionuclides on the health of workers and members of the public, as a result of utilisation of blast furnace slag (BFS) samples as a substitute for aggregate in road construction were investigated by using a gamma-ray spectrometer and potential exposure scenarios given in Radiation Protection 122. The mean activity concentrations of the (226)Ra, (232)Th and (40)K in BFS samples were found to be 152.4, 54.9 and 183.1 Bq kg(-1), respectively. These values are compared with typical values measured in BFS samples from the European Union countries, which are 270, 70 and 240 Bq kg(-1) for (226)Ra, (232)Th and (40)K, respectively. The values of radium equivalent activity index calculated for BFS samples were within the recommended safety limits. The highest total annual effective doses evaluated as 0.9 and 0.4 mSv y(-1) for members of the public and workers, respectively, were lower than the annual limit of 1 mSv y(-1).
authors: Department of Physics, Faculty of Science and Letters, Korkut Ata University, Osmaniye, Turkey.
authors: F A
authors: FA
authors: Uğur
authors: S
authors: S
authors: Turhan
authors: H
authors: H
authors: Sahan
authors: M
authors: M
authors: Sahan
authors: E
authors: E
authors: Gören
authors: F
authors: F
authors: Gezer
authors: Z
authors: Z
authors: Yeğingil
mesh_terms: D002138:Calibration; D004781:Environmental Exposure; D004867:Equipment Design; D006801:Humans; D016273:Occupational Exposure; D011197:Potassium Radioisotopes / Q000032:analysis*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection / Q000379:methods / Q000592:standards*; D011868:Radioisotopes / Q000032:analysis*; D011874:Radiometry / Q000379:methods; D011883:Radium / Q000032:analysis*; D012990:Soil Pollutants, Radioactive / Q000032:analysis; D013051:Spectrometry, Gamma / Q000379:methods; D013910:Thorium / Q000032:analysis*
chemical_list: D011197:Potassium Radioisotopes; D011868:Radioisotopes; D012990:Soil Pollutants, Radioactive; D013910:Thorium; D011883:Radium