Assessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indices

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dc.authoridSami, Mabrouk/0000-0002-0567-6283
dc.authoridEne, Antoaneta/0000-0002-6976-0767
dc.authoridAlarifi, Saad S./0000-0003-1611-1736
dc.authoridZAKALY, Hesham M.H./0000-0002-7645-9964
dc.authorwosidSami, Mabrouk/O-9035-2016
dc.authorwosidEne, Antoaneta/C-1386-2011
dc.authorwosidAlarifi, Saad S./GZM-6494-2022
dc.authorwosidZAKALY, Hesham M.H./E-8136-2016
dc.contributor.authorFathy, Douaa
dc.contributor.authorZakaly, Hesham M. H. S.
dc.contributor.authorLasheen, El Saeed R.
dc.contributor.authorElsaman, Reda A.
dc.contributor.authorAlarifi, Saad
dc.contributor.authorSami, Mabrouk
dc.contributor.authorAwad, Hamdy
dc.date.accessioned2024-05-19T14:51:20Z
dc.date.available2024-05-19T14:51:20Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe utilization of phosphorite deposits as an industrial resource is of paramount importance, and its sustainability largely depends on ensuring safe and responsible practices. This study aims to evaluate the suitability of phosphorite deposits for industrial applications such as the production of phosphoric acid and phosphatic fertilizers. To achieve this goal, the study meticulously examines the geochemical characteristics of the deposits, investigates the distribution of natural Radioactivity within them, and assesses the potential radiological risk associated with their use. The phosphorites are massive and collected from different beds within the Duwi Formation at the Hamadat mining area. They are grain-supported and composed of phosphatic pellets, bioclasts (bones), non-phosphatic minerals, and cement. Geochemically, phosphorites contain high concentrations of P2O5 (23.59-28.36 wt.%) and CaO (40.85-44.35 wt.%), with low amounts of Al2O3 (0.23-0.51 wt.%), TiO2 (0.01-0.03 wt.%), Fe2O3 (1.14-2.28 wt.%), Na2O (0.37-1.19 wt.%), K2O (0.03-0.12 wt.%), and MnO (0.08-0.18 wt.%), suggesting the low contribution of the detrital material during their deposition. Moreover, they belong to contain enhanced U concentration (55-128 ppm). They are also enriched with Sr, Ba, Cr, V, and Zn and depleted in Th, Zr, and Rb, which strongly supports the low detrital input during the formation of the Hamadat phosphorites. The high Radioactivity of the studied phosphorites is probably due to the widespread occurrence of phosphatic components (e.g., apatite) that accommodate U in high concentrations. Gamma spectrometry based on NaI (Tl) crystal 3x3 has been used to measure occurring radionuclides in the phosphorite samples. The results indicate that the radioactive concentrations' average values of Ra-226, Th-232, and K-40 are 184.18 & PLUSMN;9.19, 125.82 & PLUSMN;6.29, and 63.82 & PLUSMN;3.19 Bq Kg(,)(-1) respectively. Additionally, evaluations have been made of the radiological hazards. The calculated risk indicators exceeded the recommended national and world averages. The data obtained will serve as a reference for follow-up studies to evaluate the effectiveness of the Radioactivity of phosphatic materials collected from the Hamdat mine area.en_US
dc.description.sponsorshipKing Saud University, Riyadh, Saudi Arabia [RSP2023R496]; Dunarea de Jos University of Galati, Romania [9187/2023]en_US
dc.description.sponsorshipThis research was supported by Researchers Supporting Project number (RSP2023R496), King Saud University, Riyadh, Saudi Arabia. The author AE would like to thank the support of the research grant with contract no. 9187/2023, funded by Dunarea de Jos University of Galati, Romania. The work of author HZ is covered from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program).en_US
dc.identifier.doi10.1371/journal.pone.0287422
dc.identifier.issn1932-6203
dc.identifier.issue8en_US
dc.identifier.pmid37535632en_US
dc.identifier.scopus2-s2.0-85166518303en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1371/journal.pone.0287422
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5920
dc.identifier.volume18en_US
dc.identifier.wosWOS:001043333000054en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPublic Library Scienceen_US
dc.relation.ispartofPlos Oneen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectRed-Seaen_US
dc.subjectPhosphorite Depositsen_US
dc.subjectWestern Deserten_US
dc.subjectEastern Deserten_US
dc.subjectDuwi Formationen_US
dc.subjectPhosphogypsumen_US
dc.subjectRocksen_US
dc.subjectConstraintsen_US
dc.subjectOriginen_US
dc.subjectRegionen_US
dc.titleAssessing geochemical and natural radioactivity impacts of Hamadat phosphatic mine through radiological indicesen_US
dc.typeArticleen_US

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