Pollution Research Paper

Vol. 36, Issue 4, 2017; Page No.(742-747)

RADIOACTIVITY LEVELS AND RADIOLOGICAL RISKASSESSMENT IN SOIL SAMPLES OF UR RESIDENTIAL COMPLEXAT NASSARIYA GOVERNORATE, IRAQ

AWSAM ABDULSTAR MIRZA, HUSSAIN HAMID AL-GAZALY AND ALI ABID ABOJASSIM

Abstract

Natural radioactivity studies in soil is very important to determine the amount of change in thenatural background activity with the passage of time as a result of the spread of radioactivity.Natural radioactivity and radiological parameters were determined in soil samples of Ur residentialcomplex at Nassariya Governorate, Iraq. Twenty soil samples were collected from area under studyto measure of radionuclides using NaI(Tl) detector that volume “3x3”. Data statistically analyzedby using SPSS 20. The average values of specific activity for 238U, 232Th, and 40K have been found(14.22±0.73Bqkg-1), (6.60±0.23Bqkg-1) and (401.68±5.61 Bqkg-1) respectively, while the average valuesof Raeq, Hex and Hin were(54.60±1.08Bqkg-1), (0.14±0.002) and (0.18±0.04) respectively. It is shownthat, all results of natural radioactivity and radiological parameters were lower than the worldwideaverage by UNSCEAR, so there is no risk for the presence of natural radio activity at samples of soilunder study and it’s thought of radiologically safe for human life.

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