Open AccessAssessment of Background Radioactivity and Related Radioactive Hazard Indices in Glutinous Rice (Oryza sativa var. glu-tinosa)
Author(s) -
Prasong Kessaratikoon,
Nuthanicha Boonkong,
Ruthairat Boonkrongcheep,
Nopparit Changkit
Publication year - 2021
Publication title -
asean journal of scientific and technological reports
Language(s) - English
Resource type - Journals
ISSN - 2773-8752
DOI - 10.55164/ajstr.v24i3.243602
Subject(s) - radionuclide , semiconductor detector , oryza sativa , natural radioactivity , gamma ray spectrometry , environmental science , radiochemistry , toxicology , chemistry , physics , biology , detector , nuclear physics , biochemistry , optics , gene
Specific activites of natural (40K, 226Ra and 40Th) and anthropogenic (137Cs) radionuclides in 30 glutinous rice samples bought from some local retailers and department stores in Songkhla Province have been measured and analyzed. Experiment results were carried out by using a high-purity germanium (HPGe) detector and gamma spectrometry analysis system at Radiation Laboratory in Thailand Institute of Nuclear Technology (Public Organization) (TINT). The results show that the specific activities of 40K, 226Ra, 232Th and 137Cs in 30 glutinous rice samples ranged from < 592.21 – 896.36, < 3.73 – 11.92, < 2.49 – 7.84 and < 1.54 – < 2.35 Bq/kg respectively, with mean values of 683.13 ± 33.61, 6.09 ± 1.78, 4.20 ± 1.52 and < 1.92 ± 0.21 Bq/kg respectively. Furthermore, some related radioactive hazard indices and the excess lifetime cancer risk (ELCR) value were also evaluated and found in the safety values. Moreover, all the results were compared with Office of Atoms for Peace (OAP) data, research data in Thailand, international studies and some recommended values.