Measurement of soil radioactivity levels and radiation hazard assessment in mid Rechna interfluvial region, Pakistan

被引:35
|
作者
Jabbar, Abdul [1 ,2 ]
Arshed, Waheed [1 ]
Bhatti, Arshad Saleem [2 ]
Ahmad, Syed Salman [1 ]
Saeed-Ur-Rehman [2 ]
Dilband, Muhammad [1 ]
机构
[1] PINSTECH, Div Hlth Phys, Islamabad, Pakistan
[2] COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan
关键词
Interfluvial region; Soil sampling; Pre-treatment; Gamma-ray spectrometry; Radioactivity; Anthropogenic/primordial radionuclides; TERRESTRIAL GAMMA-RADIATION; ENVIRONMENTAL-RADIOACTIVITY; DOSE-RATE; SAMPLES; TH-232; K-40; PUNJAB; RA-226; U-238; RADIONUCLIDES;
D O I
10.1007/s10967-009-0357-3
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Radioactivity levels in soil samples, collected from mid Rechna interfluvial region, Pakistan have been estimated by using gamma ray spectrometric technique. Ra-226, Th-232, the primordial radionuclide K-40 and the artificial radionuclide Cs-137 have been measured in the soil of the study area. The mean radioactivity levels of Ra-226, Th-232, K-40 and Cs-137 were found to be 49.0 +/- A 1.6, 62.4 +/- A 3.2, 670.6 +/- A 33.9 and 3.5 +/- A 0.4 Bq kg(-1) respectively. The mean radium equivalent activity (Ra-eq), outdoor radiation hazard index (H (out)), indoor radiation hazard index (H (in)) and terrestrial absorbed dose rate for the area under study were determined as 189.9 +/- A 8.8 Bq kg(-1), 0.51, 0.65 and 70.1 nGy h(-1) respectively. The annual effective dose to the public was estimated to be 0.43 mSv. The measured values are comparable with other global radioactivity measurements and are found to be safe for public and environment.
引用
收藏
页码:371 / 378
页数:8
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