| Natural Radionuclides Characterization on Baltim-El Burullus Coastal Sediments and Their Environmental Risk Assessments |
| Paper ID : 1038-ICEE (R2) |
| Authors: |
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Asmaa M. Sallam *1, A. A. Faheim2, Z. A. El-Elshafiey2, S. A. M. Amer3, Mohamed G El Feky4 1Nuclear Power Plants Authority, 4 El Nasr Avenu-Nasr City, Cairo. 2Faculty of Science, Al-Azhar University, Cairo, P.O. Box 11884, Egypt 3Nuclear Materials Authority, Kattamiya, Cairo, Egypt 4Nuclear Materials Authority of Egypt, Kattamiya, Cairo |
| Abstract: |
| The Egyptian black sand occurs mainly along the beaches of the northern part of the Nile Delta. Baltim-El Burullus coastal sediments lie between Longitudes 30 10 and 34 15E, and Latitudes 31 10and 31 35N. Sixty-two samples from Baltim-El Burullus coastal plain were measured radiometrically by using Na-I detector for determination of 328U, 232Th, 226Ra eU, and 40K concentrations. 238U concentration ranged from 1 to 5 ppm with 1.63 as an average, 232Th from 1 to 10 ppm with an average of 3.66 ppm, 226Ra (eU) from 1 to 6 with 1.92 as an average, and 40K from 0.10 to 2.55 with a standard (0.76). The studied stream sediments could be intimated to different sources, leading to variability in the contribution of the radioelements, thus the activity concentration of 40K > 232Th > 226Ra> 238U. eU/RaeU ratios average (0.66) is lower than unity indicate the disequilibrium in the studied coastal sediments, suggesting disequilibrium with uranium migration out. The inter-element relations show the presence of U and Th in discrete minerals or their separate migration. The radiological hazard parameters, like the dose rate (D), the annual effective dose equivalent (AEDE), radium equivalent activity (Raeq), external (Hex), internal (Hin) hazard indices, and gamma index (Iγ) were estimated for these sediments and compared with the permissible international limits. Nearly all the studied samples are within the recommended acceptable levels for most environmental parameters, except some are outside the boundaries. |
| Keywords: |
| Radionuclides , Baltim-El Burullus , Sediments, Environmental Risk Assessments |
| Status : Paper Accepted |
