Natural radioactivity and external gamma radiation exposure at the coastal Red Sea in Egypt

2008 ◽  
Vol 130 (3) ◽  
pp. 376-384 ◽  
Author(s):  
S. Harb
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Red Sea ◽  
Natural Radioactivity

scholarly journals Natural radioactivity distribution and gamma radiation exposure of beach sands close to Kavala pluton, Greece

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Argyrios Papadopoulos ◽  
Antonios Koroneos ◽  
Georgios Christofides ◽  
Stylianos Stoulos
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Natural Radioactivity ◽  
Activity Concentrations ◽  
Beach Sands ◽  
Radioactivity Distribution

AbstractThis study aims to evaluate the activity concentrations of

Environmental Gamma Radiation and Natural Radioactivity in Soils in Centro Experimental Aramar (CTMSP-BRAZIL) and Region

2000 ◽  
Vol 87 (3) ◽  
pp. 207-211 ◽  
Author(s):  
M.A.P.V. de Moraes ◽  
T.F.L. Daltro
Keyword(s):  
Gamma Radiation ◽  
Natural Radioactivity

scholarly journals Differential expression of NPM, GSTA3, and GNMT in mouse liver following long-term in vivo irradiation by means of uranium tailings

2018 ◽  
Vol 38 (5) ◽  
Author(s):  
Lan Yi ◽  
Hongxiang Mu ◽  
Nan Hu ◽  
Jing Sun ◽  
Jie Yin ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Central Vein ◽  
Glutathione S Transferase ◽  
Γ Radiation ◽  
Dose Rates ◽  
Living Organisms ◽  
Uranium Tailings

Uranium tailings (UT) are formed as a byproduct of uranium mining and are of potential risk to living organisms. In the present study, we sought to identify potential biomarkers associated with chronic exposure to low dose rate γ radiation originating from UT. We exposed C57BL/6J mice to 30, 100, or 250 μGy/h of gamma radiation originating from UT samples. Nine animals were included in each treatment group. We observed that the liver central vein was significantly enlarged in mice exposed to dose rates of 100 and 250 μGy/h, when compared with nonirradiated controls. Using proteomic techniques, we identified 18 proteins that were differentially expressed (by a factor of at least 2.5-fold) in exposed animals, when compared with controls. We chose glycine N-methyltransferase (GNMT), glutathione S-transferase A3 (GSTA3), and nucleophosmin (NPM) for further investigations. Our data showed that GNMT (at 100 and 250 μGy/h) and NPM (at 250 μGy/h) were up-regulated, and GSTA3 was down-regulated in all of the irradiated groups, indicating that their expression is modulated by chronic gamma radiation exposure. GNMT, GSTA3, and NPM may therefore prove useful as biomarkers of gamma radiation exposure associated with UT. The mechanisms underlying those changes need to be further studied.

Radiological health assessment due to gamma radiation levels of natural radioactivity of soil in vicinity of Nichahoma lignite belt, Kashmir Valley

2016 ◽  
Vol 104 (6) ◽  
Author(s):  
Mudasir Ashraf ◽  
C. Anu Radha ◽  
Shakeel Ahmad ◽  
Sajad Masood ◽  
Rayees Ahmad Dar ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Gamma Radiation ◽  
Natural Radioactivity ◽  
Activity Concentration ◽  
Health Assessment ◽  
Kashmir Valley ◽  
Radioactive Nuclides ◽  
Activity Concentrations ◽  
Measured Dose ◽  
Radiological Health

AbstractThe measurements of activity concentrations in soil of the lignite belt and soil of the villages surrounding the lignite belt have been carried out in order to present the radiological health hazards due to gamma radiation levels of the soil to general public. A low- background Pb-shielded gamma spectroscopic counting assembly utilizing NaI(Tl) detector was employed for the measurements. The activity concentration of radionuclides have been determined and compared with the international and national recommended values. A correlation analysis was also performed in order to predict the contribution of the respective nuclides towards the measured dose rate and to the find the existence of these radioactive nuclides together in the study area.

scholarly journals Modeling gamma radiation exposure rates using geologic and remote sensing data to locate radiogenic anomalies

2019 ◽  
Vol 208-209 ◽  
pp. 106038
Author(s):  
Christopher T. Adcock ◽  
Daniel A. Haber ◽  
Pamela C. Burnley ◽  
Russell L. Malchow ◽  
Elisabeth M. Hausrath
Keyword(s):  
Remote Sensing ◽  
Gamma Radiation ◽  
Radiation Exposure ◽  
Remote Sensing Data ◽  
Sensing Data

The response of the melanized yeast Exophiala dermatitidis to gamma radiation exposure

2020 ◽  
Vol 22 (4) ◽  
pp. 1310-1326 ◽  
Author(s):  
Zachary Schultzhaus ◽  
Jillian Romsdahl ◽  
Amy Chen ◽  
Tanya Tschirhart ◽  
Seongwon Kim ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Exophiala Dermatitidis

Characterization of unstable microsatellites in mice: No evidence for germline mutation induction following gamma-radiation exposure

2012 ◽  
Vol 53 (8) ◽  
pp. 599-607 ◽  
Author(s):  
Marc A. Beal ◽  
Travis C. Glenn ◽  
Stacey L. Lance ◽  
Christopher M. Somers
Keyword(s):  
Gamma Radiation ◽  
Radiation Exposure ◽  
Germline Mutation ◽  
Mutation Induction
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