The potential influence of drains on the recent sediment characteristics and sedimentation rates of Lake Qarun, Western Desert, Egypt

Imam, Noha; Salem, Salem Ghonamy

doi:10.1007/s12665-023-11036-5

Cited by 4 publications

(1 citation statement)

References 51 publications

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“…It is a place for fisheries, salt production, tourism, and migratory birds in the Fall and Winter seasons and a natural drainage area for Al-Fayoum Governorate (El-Sayed et al, 2015;Attia et al, 2018 andEl-Kady et al,2019). The description and study of the ecosystem, climatic conditions, geochemistry, mineralogy of Qaroun lake have attracted many authors (e.g., El-Sayed et., 2022;Abdel Wahed et al,2015;Abd El-Aal et al,2020;Abdel-Satar et.,2010;Elwasify et al,2019 andAbdelmageed et al,2022) and biological diversity (e.g., Al-Afify et al,2019;Mehanna, 2020), sedimentation rates (Imam and Salem, 2023) and integration of water pollution indices and assessment of ground water quality (Gad and El-Hattab, 2019;Khairy et al,2022 andElsayed et al,2021). ________________________ Egypt.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Parameters, Grain Size Distribution and Mineralogical Composition of Recent Bottom Sediments and water of Qaroun Lake, Fayoum, Egypt.

Mahmoud,

Dawoud,

Abu El-Hasan

et al. 2024

Egyptian Journal of Geology

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THE PRESENT study aimed to study the physical and chemical properties of the recent bottom sediment and water of Qaroun lake. The water depth values varied in the Lake as 4.4, 5.1, and 5.7 m were at the eastern, western, and central regions, respectively, as well as water transparency values were 71.9, 73.5, and 92.2 mS/cm at the eastern, western, and middle zones, respectively. The transparency increased with increasing the depth. Water's (pH) was 8.05,7.85, and 8.13 while salinity values were 177.6, 191.4, and 191.6 mg/l in the east, central, and western regions, respectively. Electrical conductivity increases gradually from the east zone to the zone of west, passing through the central area. The average values of carbonates in the recent bottom sediment of Qaroun lake have fluctuated between 31.08, 37.05, and 34.24% in the eastern, central, and western regions, respectively. In contrast, the average values of organic matter in Qaroun lake have fluctuated between 17.33, 16.78, and 26.68% in the eastern, central, and western regions, respectively. The silt and mud are highly accumulated in the eastern region, clay and gravel are high in the central part, and sand increased in the western area. The XRD showed the distribution of mineralogical composition over the lake was found in the ranges Montmorillonite, 2-15 %,

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Section: Introductionmentioning

confidence: 99%

Physicochemical Parameters, Grain Size Distribution and Mineralogical Composition of Recent Bottom Sediments and water of Qaroun Lake, Fayoum, Egypt.

Mahmoud,

Dawoud,

Abu El-Hasan

et al. 2024

Egyptian Journal of Geology

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Historical trends of heavy metals applying radio-dating and neutron activation analysis (NAA) in sediment cores, Burullus Lagoon, Egypt

Ghanem,

Nada,

Abu-Zeid

et al. 2024

Environ Sci Pollut Res

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Burullus lagoon is part of Egypt’s protected area network. The lagoon serves as a reservoir for drainage water discharged from agricultural areas, and the lake’s sediments provide a unique opportunity to record environmental behavior and reconstruct of the heavy metal contamination history. In the present study, the sediment chronology, sedimentation rates, and metal accumulation fluxes were estimated in four sediment cores using 210Pb dating models to evaluate how human activities have affected the coastal environment. Using the radioisotopes 210Pb and 137Cs, radiometric dating was carried out using gamma-ray spectrometry. At the Egypt Second Research Reactor (ETRR-2), the element concentrations were determined using the instrumented neutron activation analysis (INAA- k0 method). Our findings show that the constant rate of supply (CRS), which has been verified with the peak of artificial radionuclide 137Cs, is the best model performed for the chronology of Burullus Lagoon. The average sedimentation rate, according to 210Pb dating models, is 0.85 cm/year. The large variation in sedimentation rates, especially after the 1990s, is consistent with an increase in the anthropogenic flux of heavy metals. This may be led into a significant environmental problem such as reducing the size of the lake and degrading the quality the water in Burullus Lagoon. Enrichment factor (EF) of the studied elements displayed the following order: Cl > Ca > Na > Br > Zn > Ta > Ti > V > Cr > Sc > Mg > Mn > Fe > Hf which is higher than unity. Furthermore, the Nemerow pollution index (PI Nemerow) revealed that pollution was increasing in the direction of the drains and slightly polluted. Consequently, pollutant indices showed that urbanization and industrial development may have increased the depositional fluxes of the metals in sediments over time.

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On dialogue about earth processes and sustainable environment in a changing world: a tribute to the legacy of the landscape traveller Augusto Pérez-Alberti

Gomes,

García,

Gómez-Pazo

et al. 2024

Environ Earth Sci

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The potential influence of drains on the recent sediment characteristics and sedimentation rates of Lake Qarun, Western Desert, Egypt

Cited by 4 publications

References 51 publications

Physicochemical Parameters, Grain Size Distribution and Mineralogical Composition of Recent Bottom Sediments and water of Qaroun Lake, Fayoum, Egypt.

Physicochemical Parameters, Grain Size Distribution and Mineralogical Composition of Recent Bottom Sediments and water of Qaroun Lake, Fayoum, Egypt.

Historical trends of heavy metals applying radio-dating and neutron activation analysis (NAA) in sediment cores, Burullus Lagoon, Egypt

On dialogue about earth processes and sustainable environment in a changing world: a tribute to the legacy of the landscape traveller Augusto Pérez-Alberti

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