Distribution and assessment of heavy metals in the coastal area of the Red Sea, Egypt.

El-Metwally, Mohamed E. A.; Othman, Azza I.; El-Moselhy, Kh. M.

doi:10.21608/ejabf.2019.29246

Cited by 12 publications

(7 citation statements)

References 15 publications

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“…The heavy metal pollution in marine sediments, beaches, and seashells along the Red Sea coast was investigated using numerous authors (Abdelkader et al, 2018 ; Attia & Ghrefat, 2013 ; El-Metwally et al, 2019 ; El-Sorogy et al, 2012 ; Madkour, 2005 ; Madkour et al, 2012 ; Mansour et al, 2011 ; Philobbos et al, 1983 ; Ramadan & Zaid, 2013 ; Redwan & Rammlmair, 2017 ; Salem et al, 2014 ; Temraz & El-Sawey, 2017 ). The overall contamination came from lithologic nature and anthropogenic activities such as land filling, oil pollution, and utilizing antifouling and anticorrosive paints from the fishing and shipping processes of phosphate ore.…”

Section: Resultsmentioning

confidence: 99%

Distribution, speciation, and assessment of heavy metals in sediments from Wadi Asal, Red Sea, Egypt

Mosalem,

Redwan,

Abdel Moneim

et al. 2024

Environ Monit Assess

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Globally, the environmental contamination of stream sediments due to geogenic and anthropogenic sources is of growing concern. In this study, the heavy metals (Cd, Co, Cr, Cu, Ni, Pb, and Zn) in 22 superficial sediments in Wadi Asal, Red Sea, Egypt, were explored to assess sediment sources, the mobility of chemical species, and the degree of contamination in sediments. Therefore, the total heavy metal values in the fine fraction (< 63 μm), a five-step sequential extraction on selective samples, risk assessment, and principal component analysis (PCA) were applied. The mobility of heavy metals in Wadi Asal sediments, according to non-residual fraction percent, declines in the following order: Cd (90.9%) > Pb (85.2%) > Co (84.4%) > Cu (80.8%) > Zn (75.9%) > Ni (48.4%) > Cr (39.6%); indicating the high mobility of Cd, Zn, Pb, Cu, and Co. The mean metal contamination factor (CF) order is Cd (10.96) > Ni (3.91) > Cr (2.77) > Zn (2.18) > Pb (2.10) > Co (1.12) > Cu (0.70). The Geo-accumulation Index (Igeo) is decreased in the following order: Cd (2.19) > Ni (0.78) > Cr (0.55) > Zn (0.44) > Pb (0.42) > Co (0.22) > Cu (0.14). The risk assessment code (RAC) revealed very high to high risk for Cd, Co, and Pb. The results pointed out that the metals Cr, Co, Cu, and Ni are from geogenic sources, while Zn, Cd, and Pb are from anthropogenic sources due to Pb–Zn mining activities. Based on the threshold effect level (TEL), Cd, Cr, Ni, and Pb have adverse effects on living organisms. According to these findings, the area along Wadi Asal and the downstream regions on the beach are highly polluted and heavy metal monitoring in sediments and aquatic organisms is recommended.

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Section: Resultsmentioning

confidence: 99%

Distribution, speciation, and assessment of heavy metals in sediments from Wadi Asal, Red Sea, Egypt

Mosalem,

Redwan,

Abdel Moneim

et al. 2024

Environ Monit Assess

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“…According to the study, the bay's sediments were enriched with heavy metals compared to background values, which could harm the environment and human health. According [14], the growing Mn concentration in northern Red Sea offshore sediments is due to its absorption into the calcite crystal lattice. The rise in Zn levels in Safaga Bay might be linked to mineral commodity transportation, including zinc and phosphate, and mining operations in the eastern desert [14,15].…”

Section: Heavy Metals Distributionmentioning

confidence: 99%

A comparative study of the risk assessment and heavy metal contamination of coastal sediments in the Red sea, Egypt, between the cities of El-Quseir and Safaga

Elgendy,

El Daba,

El-Sawy

et al. 2024

Geochem Trans

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This study aimed to assess the influence of pollution on the quality of sediments and the risks associated with El-Qusier and Safaga Cities, Red Sea, Egypt, during 2021, divided into four sectors, using multiple pollution indices. To achieve that, we evaluated the metal pollution index (MPI), contamination factor (Cf), pollution load index (PLI), contamination security index (CSI), and anthropogenicity (Anp%). Moreover, carcinogenic and non-carcinogenic risks are used for human health hazards. Results indicated that Mn and Fe recorded the highest concentrations, whereas Cd had the lowest. El-Quseir City sediments were found the following metal ions: Fe > Mn > Ni > Zn > Cu > Co > Pb > Cd, where the order in the Safaga City was: Fe > Mn > Zn > Ni > Cu > Pb > Co > Cd. MPI > 1, this is alarming in the study area due to heavy metal pollution. In addition, Cf < 1 in all metals except Cd with contamination degree CD ranged from low to considerable contamination in El-Qusier city. In contrast, contamination ranged from significant to very high in Safaga city. PLI < 1 is lower than the reference at all monitored stations. CSI values ranged from relatively low to moderate. Besides Cd, data reflect each element's low environmental danger (EriMe40). This study's risk index (RI) is low to moderate in Sector 1 and high to extremely high in Sector 2. HQ and HI index < 1 means it is safe for human health in order: HI ingestion > HI dermal. CSR for different pathways was recorded as dermal > ingestion, in which total CSR for all paths is considered harmful, and the cancer risk is troublesome and higher than the reference ranges of 1 × 10–6–1 × 10–4. In conclusion, the examined heavy metals provide environmental hazards across the assessed locations.

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“…Heavy metals in the sediments of current studied regions were found within range of the other studies in the Egyptian coastal regions and elsewhere (Hamed & El-Moselhy, 2000;El-Moselhy & Gabal, 2004;El-Moselhy & Hamed, 2006;Abouhend & El-Moselhy, 2015;Zaghloul, 2015;Saad etal., 2016;El-Moselhy etal., 2016;El-Metwally etal., 2017& 2019El-Amier etal., 2021;Tepe etal., 2022;Feki etal., 2022;Tian etal., 2022 andRadomirović etal., 2023). By comparing the present results with background levels and typical concentrations of metals in sediment samples, which were 20 (Pb), 0.3 (Cd), 45 (Cu), 95 (Zn), 19 (Co), 68 (Ni), 850 (Mn) and 47200 µg/g (Fe) (Turekian &Wedepohl, 1961 andArmiento etal., 2022).…”

Section: Gulf Ofmentioning

confidence: 99%

“…In the previous years, several researches have documented metal pollutants in sediments of the Red Sea, Egypt (Hamed & El-Moselhy, 2000;Abouhend & El-Moselhy, 2015;El-Moselhy etal., 2016;El-Metwally etal., 2017& 2019and Farhat etal., 2022. These studies were usually carried out only restricted coasts of the Red Sea, and the results could not describe and compare the metal contents in the sediments from whole coasts of the Egyptian Red Sea.…”

Section: Introductionmentioning

confidence: 99%

Distribution and assessment of heavy metals in sediments from the Red Sea, Egypt during 2019

Saad,

Mahmoud,

Mohamedien

et al. 2023

Frontiers in Scientific Research and Technology

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The present investigation is aimed to determine the concentration of some heavy metals (Pb, Cd, Cu, Zn, Co, Ni, Mn and Fe) in sediments from Egyptian Red Sea, and assess its contamination state using different pollution indices. Sediments were sampled biannually in winter and summer of 2019 at nineteen sites covering Gulf of Suez, Aqaba Gulf and Red Sea proper. Levels of the investigated metals were measured by Flame Atomic Absorption Spectrophotometer method. Results showed that the examined metals revealed annual average of 22.

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Distribution and assessment of heavy metals in the coastal area of the Red Sea, Egypt.

Cited by 12 publications

References 15 publications

Distribution, speciation, and assessment of heavy metals in sediments from Wadi Asal, Red Sea, Egypt

Distribution, speciation, and assessment of heavy metals in sediments from Wadi Asal, Red Sea, Egypt

A comparative study of the risk assessment and heavy metal contamination of coastal sediments in the Red sea, Egypt, between the cities of El-Quseir and Safaga

Distribution and assessment of heavy metals in sediments from the Red Sea, Egypt during 2019

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