Evaluation of Natural Radioactivity in Granite and Marble used as Flooring Materials in Baghdad Province/ Iraq

  • Zaid Zeyad Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq.
  • Yaaroub Faleh Khalf AL-Fatlawy Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq.
Keywords: Natural radioactivity, granite, high purity germanium detectors, hazard indices

Abstract

Twenty four  samples of  various granites and marble used common as flooring materials were collected from many factories and market in Baghdad Province, Iraq. Natural radioactivity of 226Ra, 232Th and 40K in the samples was measured by using high purity germanium detectors with an efficiency of 40%. The Specific activity concentration in granite samples ranged from 9.20 to 79.64 Bq/kg, 10.50 to 229.40 Bq/kg and 185.30 to 1391.20 Bq/kg for 226Ra, 232Th and 40K, respectively. The estimated  of radiological parameters: radium equivalent activity (Req), activity concentration Index (I) and hazard indices (internal (Hin) and External (Hex)) that associated with the radiation hazard in the samples. The results of activity specific concentrations and radiological parameters  of 226Ra, 232Th and 40K were compared with the reported data of the worldwide limit of building materials.

Published
2018-07-29
How to Cite
Zeyad, Z., & AL-Fatlawy, Y. F. K. (2018). Evaluation of Natural Radioactivity in Granite and Marble used as Flooring Materials in Baghdad Province/ Iraq. Iraqi Journal of Science, 59(3A), 1183-1188. Retrieved from https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/454
Section
Biology