scholarly journals Natural Radioactivity in Soil and Bitumen in Al-Marj Spring and Abu-Jir Village, Anbar, Western Iraq

2021 ◽  
Vol 54 (2E) ◽  
pp. 12-23
Author(s):  
Haneen A. Jassam
Keyword(s):  
Organic Matter ◽  
Natural Radioactivity ◽  
Natural Radionuclides ◽  
Radioactive Material ◽  
Hydrocarbon Accumulation ◽  
Naturally Occurring ◽  
High Purity Germanium ◽  
The World ◽  
Naturally Occurring Radioactive Material ◽  
Γ Ray

The aim of the present research is to illustrate γ-ray levels emitting from soil and bitumen producing from 238U, 232Th, and 40K along Abu-Jir Fault Zone. in the area extended from Al-Marj valley to Abu-Jir village using scintillometer device. Such study is important in environmental assessment to buildup data base about radioactivity. The concentration of natural radionuclides in the study area was determined to be occurring mostly in the clay minerals and organic matter. A high purity germanium spectrometer was used to detect the activity of these elements which ranged between 00.6±18.1- 1526±102, 0- 8.4±1.4, and 70.1±10.9- 328.2±73 in soil, and 28.2±5.6- 94±22.1, 0- 2.2±0.5, and 38.4±7.9- 70.1±10.9 in bitumen for 226Ra, 232Th, and 40K respectively. The anomaly of the Naturally occurring radioactive material was associated with hydrocarbon accumulation and springs. The source of 232Th and 40K came from the same source rock (illite), while 226Ra was associated with ascending fluids. The obtained results showed that the activity of 226Ra in soil has value above the world averages and other countries.

ASSESSMENT OF NATURAL RADIONUCLIDES LEVELS IN DRINKING WATER FROM OGUN STATE, NIGERIA

2016 ◽  
Vol 78 (6-7) ◽  
Author(s):  
Usikalu M. R. ◽  
Olawole C. O. ◽  
Joel E. S.
Keyword(s):  
Water Samples ◽  
Background Radiation ◽  
Natural Radionuclides ◽  
Age Groups ◽  
Radiological Protection ◽  
Ogun State ◽  
Naturally Occurring ◽  
High Purity Germanium ◽  
Naturally Occurring Radionuclides ◽  
Effective Doses

Naturally occurring radionuclides levels of 238U, 232Th and 40K were investigated in the water samples collected at different boreholes in all the local government of Ogun State using high-purity germanium (HPGe) detector (Canberra Industries Inc.). The activity concentrations measured from the water samples ranged from 0.06 to 1.37 Bq l-1 for 238U, 0.15 to 0.52 Bq l-1 for 232Th and 1.35 to 12.74 Bq l-1 for 40K. The measured activities concentrations for 238U, 232Th and 40K along with their ingested dose conversion factors were used to estimate the annual effective doses in accordance with International Commission on Radiological Protection (ICRP) based on age groups 0 -1y, 1 – 2y, 2 – 7y, 7 – 12y, 12 – 17y and >17y for water consumption. The total annual effective doses calculated varied from 0.004 to 0.517, 0.002 to 0.092, 0.001 to 0.078, 0.001 to 0.076, 0.024 to 0.110 and 0.002 to 0.117 for the age groups accordingly. The physiochemical results showed that 85% of the water was acidic as they have pH less than 6.5 and 65 % of them exceeded the copper concentration recommended limit. It revealed that consumption of the water is safe from natural background radiation for all groups except 0-1 y as the annual effective dose obtained for this group exceeded the average world limit (0.12). The study therefore, suggests that Ogun State populace should use less of these water samples for babies between the age 0-1 year.

Naturally occurring radioactive material and risk assessment of tailings of polymetallic and Ra/U mines from legacy sites

Chemosphere ◽  
2019 ◽  
Vol 223 ◽  
pp. 171-179 ◽  
Author(s):  
Isabel Paiva ◽  
Rosa Marques ◽  
Marta Santos ◽  
Mário Reis ◽  
Maria Isabel Prudêncio ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Radioactive Material ◽  
Naturally Occurring ◽  
Naturally Occurring Radioactive Material

scholarly journals Natural Radioactivity of Laterite and Volcanic Rock Sample for Radioactive Mineral Exploration in Mamuju, Indonesia

Geosciences ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 376
Author(s):  
Ilsa Rosianna ◽  
Eka Djatnika Nugraha ◽  
Heri Syaeful ◽  
Sugili Putra ◽  
Masahiro Hosoda ◽  
...  
Keyword(s):  
Mineral Exploration ◽  
Volcanic Rocks ◽  
Mining Area ◽  
Major Elements ◽  
Radioactive Material ◽  
High Exposure ◽  
Naturally Occurring ◽  
Naturally Occurring Radioactive Material ◽  
Exploration Area ◽  
Radioactivity Measurements

Mamuju is a region of Indonesia with relatively high exposure to natural radiation. Since 2012, Mamuju has been a uranium and thorium exploration area. Several mapping studies of the region have been carried out to depict NORM (naturally occurring radioactive material) areas and areas with uranium anomalies. This paper is the first study to use radioactivity measurements of laterite and volcanic rocks to determine the characteristics of radionuclides and other mineral measurements, which are essential for categorising Mamuju rocks and exploring the region as a potential mining area. The radioactivity of the samples was measured using a high-purity germanium (HPGe) detector. Furthermore, we used X-ray fluorescence (XRF) to determine the rock mineral composition. Mamuju is anomalous due to its high content of 238U and 232Th concentrations of 539–128,699 Bq·kg−1 (average: 22,882 Bq·kg−1) and 471–288,639 Bq·kg−1 (average: 33,549 Bq·kg−1), respectively. The major elements are dominant, including Fe2O3, SiO2, Al2O3, and Na2O, with several other major elements such as MnO, TiO2, and CaO.

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