Open AccessAnalysis of radiological hazards from surface soils in Khong Chiam and Sirinthon districts, Ubon Ratchathani province
Author(s) -
Manit Jitpukdee,
P. Quinram,
Chutima Kranrod
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1285/1/012017
Subject(s) - radium , radiological weapon , radionuclide , environmental science , effective dose (radiation) , soil water , absorbed dose rate , toxicology , nuclear medicine , medicine , soil science , radiochemistry , chemistry , absorbed dose , physics , biology , dosimetry , quantum mechanics
The radiological hazards from natural radionuclides in soil at the border area between the northeast of Thailand and Laos were studied and evaluated. The 33 surface soil samples from Khong Chiam and Sirinthon districts in Ubon Ratchathani province were collected and measured the specific radioactivity ( 226 Ra, 232 Th and 40 K). The radioactivity of all soil samples was analyzed from gamma ray spectrums using hyper-pure germanium detector. The results applied for calculating the radiological hazards which were radium equivalent activity (Raeq), absorbed dose rate (D), annual effective dose equivalent (AEDEout) and external hazard index (Hex). The experimental results obtained the radioactivity concentrations in a range of 10.64 to 46.67 Bqkg −1 with average value of 22.82 ± 3.59 Bqkg −1 , 6.35 to 44.72 Bqkg −1 with average value of 15.49 ± 3.57 Bqkg −1 and 31.22 to 521.57 Bqkg −1 with average value of 130.44 ± 28.46 Bqkg −1 for 226 Ra, 232 Th and 40 K, respectively. The calculation results of Raeq, D, AEDEout and Hex showed significantly lower than the radiological hazard levels which are recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation. The results of this study reveal that people can live and travel along the border area in the northeast of Thailand.