Radon (222Rn), radium (226Ra) and uranium (238U) concentration in the samples of marshes' water have been measured. The samples were collected from various places at the marshes, in Dhi-Qar governorate. The method that used in the present study is the can technique by Solid State Nuclear Track Detectors (SSNTDs) with CR-39 detectors. Also, it was determined the average internal effective dose risk (AED), with lifetime cancer risk due to ingestion of 222Rn and 226Ra in drinking water. The average values of 222Rn, 226Ra and uranium 238U concentration in water samples were found to be 288.02 ± 31.21 Bq/m3, 0.45 ± 0.04 Bq/L, and 0.60 ± 0.06 ppm respectively. The average values of AED (in mSv/y unit) caused by ingestion of 222Rn and 226Ra in the samples of the study were found to be 0.019 ± 0.002 and, 0.093 ± 0.01, respectively. The average values of total AED and lifetime cancer risk values were calculated to be 0.11 ± 0.01 mSv/y and (4.34 ± 0.47) × 10−4, respectively. The average concentration values of 222Rn and 226Ra were found to be within the global average limitations (0.4 Bq/L), and (1 Bq/L) that are recommended by World Health Organization (WHO) 1993 and 2011, while the average of 238U concentrations were higher than that of global average limitation (0.566 ppm) that was recommended by Environmental Protection Agency (EPA). When some results of AED due to 222Rn and 226Ra concentrations, in the samples under study, were compared with the worldwide median value, that is recommended by WHO (2011); it was found that the lifetime cancer risk in all samples of the present study were higher than the safety limit for the healthy drinking water. Therefore, consuming the water of Marshes in the Dhi-Qar governorate- Iraq, for cooking and drinking (which is contaminated with alpha emitters like; 222Rn, 226Ra, and 238U) may lead to a considerable variation in the internal effective dose. HIGHLIGHT In this manuscript, I have been affording in a truly innovative way the issue to put the basis towards the realization for the first time of a baseline for assessment of the exposure of Iraq's people to lifetime cancer risk and annual effective dose assessment due to alpha emitters concentrations in water of Marshes in Dhi-Qar Governorate, Iraq. The results show that the cancer risk in samples is higher than the world.

No abstract

This research focuses on measuring the concentrations of radioactive radon gas (222Rn) in groundwater samples that collected from different places in Dhi-Qar Governorate, using RAD-7 (RAD-7 H2O) detector. Also, annual effective dose (AED) and lifetime cancer risk due to ingestion of 222Rn in samples of present study as drinking water were evaluated. The results show that, 222Rn concentration in Bq/L were ranged from 0.032±0.022 to 0.780±0.110, with an average 0.205±0.04. Also, the range of AED were changed from 0.08 µSv/y to 1.99 µSv/y, with an average 0.52±0.10 µSv/y. While lifetime cancer risk (×10-4) were ranged from 0.003 to 0.077, with an average 0.020±0.004. Accordingly, 222Rn concentrations in samples of present study (as groundwater) was within the permissible limit according to the Environmental Protection Agency (EPA), as the maximum concentration of radon in the water reached (11.1) Bq/L, but 222Rn concentrations for some samples were higher than the permissible limit for drinking water that equal (0.4 Bq/L) according to WHO2008. Also, The values of AED and lifetime cancer risk in all samples were found lower than the safety limit for the healthy drinking water. So, it may be concluded that groundwater in the Dhi-Qar governorate- Iraq have not environmental impacts For Radioactive Radon Gas on the health of human.

No abstract

In this study, the most appropriate Hamiltoni an has been determined, that is needed for the present calculations of energy levels and B(E2) values of even-even Ba, Ce, Nd nuclei using the Interacting Boson Model (IBM-1). The results have been compared with a recent experimental data, it was observed that they are in good agreement. Also, the branching ratios (R, R' and R'') have been calculated and the importance of studying the branching ratios is to locate the position of the isotopes relative to the dynamical symmetries U(5), SU(3) and O(6). The results of the present study have showed that the isotopes under investigation lies in the different transition regions, the results appear that Ba isotone lies in the transition region SU(3)-O(6) and the Ce, Gd, Dy isotones lies in the transition region of O(6)-U(5) and the Nd, Sm isotones lies in U(5) limit.