DETERMINATION OF ACTIVITY CONCENTRATION OF RADIOACTIVE ELEMENTS IN BOREHOLE AND WELL WATER SAMPLES FROM ADANKOLO NEW LAYOUT LOKOJA

This study was conducted to determine and compare the activity concentration of natural radioactivity 238U, 232Th, 40K in borehole well water samples collected from Lokoja Nigeria, using Sodium Iodide−Thallium gamma spectroscopy. Samples selected wells were standard radiation protocol analyzed. The result shows that sample 2.77±0.67 Bq/l; 2.30±0.27 Bq/l 1.66±0.13 for respectively, 17.62±1.37 while its 238U 232Th are Below Detection Limit. results obtained lower terms health risk compared World Health Organization (WHO) values (i.e., 10B q/l, 1Bq/l 4.40 respectively) except which higher. absorbed dose rate found be 0.49±62 nGy.hr−1 0.09±1.17 water. radium equivalent also calculated 1.36±62 6.19±1.17 sample. evaluated annual effective 0. 00060mSv.y−1 0.000096±1.17 mSv.y−1for estimated radiological parameters this than International Commission on Radiological Protection (ICRP) maximum permitted limit. Hence, most them have no significant effect environment populace which