Artikkelit kirjoittajalta Mohamed Yehia
Raskasmetallipitoisuudet jokivedessä ja pohjasedimenteissä Niilin suistossa Egyptissä.
English title: Heavy metal concentrations in surface river water and bed sediments at Nile Delta in Egypt.
Avainsanat:
water quality;
River Nile;
Nile Delta;
Rosetta Branch;
surface water;
bed sediment;
heavy metal;
concentration;
pollution
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Tekijät
Rosetta Branch of river Nile is subjected to severe pollutants of domestic, sewage, agricultural and industrial pollution. In this study, the distribution of heavy metals (Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) were measured in surface river water and the bed sediments of Rosetta Branch and the impacts of heavy metals on the water quality were monitored. The heavy metal concentrations in river water and their contents in the bed sediments were studied three times before, during and after winter period (low flow conditions) from August 2007 to April 2008. The heavy metal concentrations in the river sediments were remarkably high, but varied among sampling points, and the concentrations in water were mainly within the permissible limits. The heavy metal contents in bed sediment were highest during closure of winter period. Attention should be paid to mitigate element mobilization from sediments as their effects may become significant during seasons and years of low water flow in the river. Constant monitoring of the Nile river water quality is needed to record any alteration in the quality and mitigate outbreak of health disorders and the detrimental impacts on the aquatic ecosystem.
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El Bouraie,
Mohamed M. El Bouraie, Central Laboratory for Environmental Quality Monitoring (CLEQM), National Water Research Center (NWRC), Cairo, Egypt, email: mido.chemie@gmail.com
Sähköposti:
ei.tietoa@nn.oo
- El, Sähköposti: ei.tietoa@nn.oo
- Yehia, Sähköposti: ei.tietoa@nn.oo
- Motawea, Sähköposti: ei.tietoa@nn.oo
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