Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103063
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dc.contributor.authorDar, M. A.en
dc.contributor.authorUosif, M. A.en
dc.contributor.authorMohamedein, L. I.en
dc.contributor.authorMadkour, A. G.en
dc.contributor.authorZakaly, H. M. H.en
dc.date.accessioned2021-08-31T15:07:15Z-
dc.date.available2021-08-31T15:07:15Z-
dc.date.issued2020-
dc.identifier.citationRadiation Hazards and the Cancer Risk Assessments in the Sediments of Timsah Lake, Egypt / M. A. Dar, M. A. Uosif, L. I. Mohamedein, et al. — DOI 10.4197/Mar.30-1.1 // Journal of King Abdulaziz University, Marine Science. — 2020. — Vol. 30. — Iss. 1. — P. 1-16.en
dc.identifier.issn10128840-
dc.identifier.otherFinal2
dc.identifier.otherAll Open Access, Bronze3
dc.identifier.otherhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85101808096&doi=10.4197%2fMar.30-1.1&partnerID=40&md5=888adb96daf05677ad8c64f10035d5e4
dc.identifier.otherhttps://doi.org/10.4197/mar.30-1.1m
dc.identifier.urihttp://hdl.handle.net/10995/103063-
dc.description.abstractTimsah Lake is one of the most fish productive lakes in Egypt. It is located at the midpoint of Suez Canal with surface area of about 16 km2. The lake receives about 833,000 m3daily of wastewater and sewage wastes from agriculture, industry and domestic drains. The activity concentrations of the natural radionuclides; 238U, 232Th and 40K were measured using gamma-ray spectrophotometer at 24 stations covering the whole area of the lake and the Western Bay. The average activities of 238U, 232Th and 40K were; 21.66 ± 11.20, 21.42 ± 11.68 and 200.30 ± 141.10 Bq/kg respectively. The averages of radiation hazard parameters; the absorbed and effective dose rate (D), the annual effective dose equivalent (AEDE), radium equivalent (Raeq), the external hazard index (Hex) and the representative level index (Iγr) were; 30.85 nGy h-1, 37.84 μSv/y, 67.02 Bq/kg, 0.18 (lower than the unity) and 0.23 respectively. The distribution patterns showed significant high variations in the radionuclides activities and the hazard parameters between the investigated stations. The Western Bay stations and the path zone interlinked between the bay and the lake showed the high radionuclide activities and high radiation hazards indicating to the sewage wastes and wastewater runoff are the essential sources of the high natural radionuclide activities and radiation hazards. The average of the excess lifetime cancer risk (ELCR) was 132.43 × 10-6significantly lower than the worldwide average. The highest recorded level of ELCR was reached 308.38 × 10-6observed in the interlink zone between the bay and the lake away from fishing stations and recreational zones. Statistical analyses indicated that the radionuclides 238U and 232Th are the sources of the elevated radiation hazards with nearly equal intensities. © 2020. All Rights Reserved.en
dc.format.mimetypeapplication/pdfen
dc.language.isoenen
dc.publisherKing Abdulaziz University Scientific Publishing Centeren
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.sourceJ. King Abdulaziz Univ. Mar. Sci.2
dc.sourceJournal of King Abdulaziz University, Marine Scienceen
dc.subjectELCR RISKen
dc.subjectNATURAL RADIOACTIVITYen
dc.subjectRADIATION HAZARDSen
dc.subjectSUEZ CANALen
dc.subjectTIMSAH LAKEen
dc.titleRadiation Hazards and the Cancer Risk Assessments in the Sediments of Timsah Lake, Egypten
dc.typeArticleen
dc.typeinfo:eu-repo/semantics/articleen
dc.typeinfo:eu-repo/semantics/publishedVersionen
dc.identifier.doi10.4197/Mar.30-1.1-
dc.identifier.scopus85101808096-
local.contributor.employeeDar, M.A., National Institute of Oceanography and Fisheries, Hurghada, 84511, Egypt
local.contributor.employeeUosif, M.A., Physics Department, Azhar University, Assuit, 71524, Egypt, Physics Department, Science College, Jouf University, Sakaka, 42421, Saudi Arabia
local.contributor.employeeMohamedein, L.I., National Institute of Oceanography and Fisheries, Suez, 43713, Egypt
local.contributor.employeeMadkour, A.G., National Institute of Oceanography and Fisheries, Hurghada, 84511, Egypt
local.contributor.employeeZakaly, H.M.H., Physics Department, Azhar University, Assuit, 71524, Egypt, Department of Experimental Physics, Institute of Physics and Technology, Ural Federal University, Yekaterinburg, 620002, Russian Federation
local.description.firstpage1-
local.description.lastpage16-
local.issue1-
local.volume30-
local.contributor.departmentNational Institute of Oceanography and Fisheries, Hurghada, 84511, Egypt
local.contributor.departmentPhysics Department, Azhar University, Assuit, 71524, Egypt
local.contributor.departmentPhysics Department, Science College, Jouf University, Sakaka, 42421, Saudi Arabia
local.contributor.departmentNational Institute of Oceanography and Fisheries, Suez, 43713, Egypt
local.contributor.departmentDepartment of Experimental Physics, Institute of Physics and Technology, Ural Federal University, Yekaterinburg, 620002, Russian Federation
local.identifier.pure21025440-
local.identifier.pure8c3cf2f8-d702-43a0-a4e8-19819236133auuid
local.identifier.eid2-s2.0-85101808096-
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