2024
DOI: 10.3390/su16020490
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Environmental Radioactivity, Ecotoxicology (238U, 232Th and 40K) and Potentially Toxic Elements in Water and Sediments from North Africa Dams

Younes Hamed,
Yosra Ayadi,
Rihab Hadji
et al.

Abstract: The natural radioactivity of 238U, 232Th and 40K was measured in water and sediment samples collected from Sidi Salem dam (Tunisia) and Aïn Dalia dam (Algeria) in the Tuniso-Algerian transboundary basin. The samples were measured using a TERRA detector of gamma, beta, and alpha rays, and atomic absorption and gamma-ray spectrometry were used to analyze the levels of radionuclides and toxic elements, respectively. Potentially toxic elements (Fe, Pb, Zn, Ni, Cr, Cu and Cd) and associated health risks in surface … Show more

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Cited by 8 publications
(5 citation statements)
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“…under reducing environments. The geothermal deep water of NWSAS can be a good catalyst of uranium mineral dissolution but the clay mineral and the organic matter of the aquitards in the study area can be the inhibitors of radioactivity propagation in groundwater depending on their thickness [12]. In this sandy geothermal transboundary aquifer, the uranium is favorably fractionated in high-temperature meta-luminous melts and is dependent on the geothermal gradient (30 • C/Km).…”
Section: Southern Transboundary Part (Tuniso-algerian Basin)mentioning
confidence: 99%
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“…under reducing environments. The geothermal deep water of NWSAS can be a good catalyst of uranium mineral dissolution but the clay mineral and the organic matter of the aquitards in the study area can be the inhibitors of radioactivity propagation in groundwater depending on their thickness [12]. In this sandy geothermal transboundary aquifer, the uranium is favorably fractionated in high-temperature meta-luminous melts and is dependent on the geothermal gradient (30 • C/Km).…”
Section: Southern Transboundary Part (Tuniso-algerian Basin)mentioning
confidence: 99%
“…Nitrogen contaminants, such as nitrate, nitrite, and ammonia nitrogen, are prevalent inorganic contaminants. Nitrate is predominantly from anthropogenic sources, including agriculture and domestic wastewater [12,[56][57][58]. Other potentially toxic and non-toxic elements found in groundwater include anions, oxyanions, and cations, such as Cd, Pb, Zn, Cr, F, SO 4 , Cl, Na, K, Ca, and Mg. Total dissolved solids (TDSs), which refer to the total amount of inorganic and organic ligands in water, also may be increased in groundwater (water-rock interactions).…”
Section: Human Health Impactsmentioning
confidence: 99%
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“…Water resources are the cornerstone of sustainable development, supporting all aspects of life globally [1]. However, chronic mismanagement and abuse have exacerbated water scarcity [2], posing a serious threat to people's basic right to safe and clean water [3]. China is one of the main countries in the world with inadequate water resources, with per capita water resources of only 2074.53 m 3 [4].…”
Section: Introductionmentioning
confidence: 99%