Data/hora: 10/06/2024 11:07:26

Provedor de dados: | 20
País: | Belgium

Título:

Geochemical and sedimentology of core sediments and the influence of human activities: Qusier, Safaga and Hurghada Harbors, Red Sea Coast, Egypt

الرسوبيات و الجيوكيمياء لعينات اسطوانية وتأثير الانشطة الادمية: موانى الغردقة، سفاجا ووالقصير ، البحر الاحمر ، مصر

Autores: | Mohamed, A.W.
Data: | 2006-05-12
Ano: | 2005
Palavras-chave: | Trace elements; Carbonate; Anthropogenic impacts; Remediation Environments Grain size Marine environment Marine pollution Organic matter Marine environment Organic matter Environment http://aims.fao.org/aos/agrovoc/c_4610 http://aims.fao.org/aos/agrovoc/c_5387 http://aims.fao.org/aos/agrovoc/c_2593.
Resumo: | The grain size distribution and arameters, major and trace elements, carbonate, total phosphorus, organic carbon and total organic matter has been assessed for core sediments collected in the intertidal area of Qusier, Safaga and Hurghada harbors in July 2002. Mud is the dominant fraction in almost all samples of Qusier core and some samples of Safaga and Hurghada cores. The reason for the high mud content of all Qusier core samples and some samples of Safaga and Hurghada cores is due to the terrigenous flux of wadies, phosphate deposits, landfill and dredging in these areas. Metals concentrations in the core sediments vary between sites within a wide range for Cu, Zn, Pb, V, Ni and Cd. Concentration of metals in the sediments at the top of cores is the highest. The highest concentration of P, V in Quseir, Pb, Zn in Safaga, Cd, Co,Ni in Hurghada may be attributed to anthropogenic inputs from the urrounding areas and harbors. Contamination with fine-grained terrigenous material and organic matter are recorded in Quseir and Safaga core samples. The increase in observed contaminants in these areas is probably due to phosphate deposits, sewage sludge discharge to the sea and lead in gasoline of motor boats. Concentrations of trace metals and physical properties measured in core samples will help in identifying anthropogenic impacts and better assessment the needs for remedial measures by detecting any changes, from the existing level expected with future operation activities.
Tipo: | Journal Contribution
Idioma: | Inglês

Identificador:

Egyptian Journal of Aquatic Research, 31 (1), p. 92-103

1110-0354

http://hdl.handle.net/1834/1248

Editor: | Alexandria: National Institute of Oceanography and Fisheries

Formato:

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