Measurement and Identification of Natural and Artificial Ratio Active Pollutants in Soil Samples of Baghdad City Using Gammaray Spectrometry

Abstract

In this work an identification of the ratio active nuclide in soil samples of Baghdad city with the measurement of there specific activity using Gamma-ray spectrometry is given. Twenty six samples of surface soil from Al-Kharch side and Four tenth samples from Al-Rusafa side are collected. Their positions are allocated using GPS system. A Gamma-ray spectrometry system type (DSA2000) is used in measurements with (HpGe) detector with 50% efficiency and 2.2 keV at the 1332 keV line emitted from (60Co) source. The results of specific activity averages of the radio active nuclide (208Tl or 228Ac) , (214Pb or 214Bi) , (40K) , (137Cs) in surface soil of Al-Kharch and Al-Rusafa sides are (47.199±2.047), (47.032±3.147), (819.901±11.134), (7.49±0.759) Bq/kg respectively for Al-Kharch soil and (51.703±2.229), (49.388±32.361), (852.715±1.798), (7.54±0.804) Bq/kg for Al-Rusafa soil, which are close, for example, to the uranium percentage as estimated by (UNCERR) which is (48.89) Bq/kg. It may be concluded that no indication of high level of specific activity is observed and results are within the ordinary levels.