NORM in soil of some locations in Baghdad governorate, Iraq

In this study, 238U, 232Th and 40K were measured in the soil samples for some locations in the Rasafa Side of Baghdad Governorate. The study was carried out using gamma ray spectroscopy Nal(Tl) with "3x3" crystal. Thirty eight regain were selected randomly from study area, from 1/11/2018 t...

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Bibliographic Details
Published in:International journal of energy and environment 2019-05, Vol.10 (3), p.143-155
Main Authors: Abojassim, Ali Abid, Rasheed, Leith Hani
Format: Article
Language:English
Subjects:
Cosmic rays
Equivalence
Gamma rays
Gamma spectroscopy
Global positioning systems
GPS
Health hazards
Health risks
Physics
Radiation dosage
Radioactivity
Radium
Spectroscopy
Studies
Terrestrial environments
γ Radiation
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Summary:In this study, 238U, 232Th and 40K were measured in the soil samples for some locations in the Rasafa Side of Baghdad Governorate. The study was carried out using gamma ray spectroscopy Nal(Tl) with "3x3" crystal. Thirty eight regain were selected randomly from study area, from 1/11/2018 to 1/1/2019. The results showed that, the specific activity of 235U, 238U, 232Th and 40K were ranged from (0.456 to 1.510) Bq/kg, (9.89±0.61 to 32.77±0.39) Bq/kg, (5.79±0.23 to 14.46±0.37) Bq/kg, (204.16±2.38) to (529.48±3.83) Bq/kg respectively. After measured the specific activity, we found radiological hazard index the mean radium equivalent activity (Raeq), external hazard index (Hex), internal hazard index (Hin), representative level index (Iyr), alpha index (la) were (25.64 to 77.11) Bq/kg, (0.069 to 0.208), (0.111 to 0.232), (0.175 to 0.592), (0.049 to 0.164) respectively. In addition, the mean Exposure rate (X), absorbed dose rate in air (Dr,), annual gonadal equivalent dose (AGED), annual effective dose equivalent indoor, outdoor and total(AEDEindoor, AEDEoutdoor, AEDEtotal) and excess lifetime cancer risk ( ELCR)) were (2.35 to 4.94)pR/h , (0.284 to 38.06)nGy/h , (143.10 to 301.52)mSv/y , (0.056 to 0.187) mSv/y, (0.014 to 0.047)mSv/y , (0.070 to 0.234)mSv/y , (0.246 to 0.817) respectively. The results indicate that across the area the effective dose from terrestrial gamma radiation is everywhere within the acceptable level according to UNSCEAR, OCDE and ICRP, so there is no risk of propels that life in area under study.
ISSN:2076-2895
2076-2909