Abstract
The trace concentrations of a number of elements including: Ti, Cr, Mn, Fe, Co, Zn and Ag have been determined in sediments taken from El-Ryah El Twfiky and some of its extensions through El-Kallobia, El-Dakahlia and Damietta provinces, Egypt, where these water streams are considered the main source for drinking, irrigation and industrial waters, to the three mentioned provinces. The concentration value of the trace elements have been determined and associated with the specific surface area, organic carbon, fraction of particles ( < 100 µ m) and with each other. The levels of metal concentration are compared generally with levels found elsewhere in some river sediments. The high values and trends in metal content of the sediments compared with natural levels may be ascribed to the dumping of metallic waste materials nearby the water course, industrial and domestic effluents discharged into the stream from a number of outfalls within the area, in addition to fertilizers washed down from cultivated land.
Highlights
Since the Industrial Revolution, [he eHorts 01 removing man-made pollutants from the natural environment have been unable to keep pilce with the increasing amount 01 ~a'te rna terials and a growing popula tion Iha t funller i1ggrilvates the situation
The introduction of metal contaminants in to aqua tic systems have various sources, including : smelting processcs and luel combustion via atmospheric fallout, pollution Irom leaks, elHuents and dumping activities, from run off of terrestrial systems-where accumulation has occurred by atmospheric input-land application of sewage materials and leaching of garbage
Investigation into the distribution of trace metal concentration in wa tel', sediments and biological milller are imp?~tant items 01 research in water po!lution because they are highly penistent and can be toxic to lile in only trace level
Summary
Since the Industrial Revolution, [he eHorts 01 removing man-made pollutants from the natural environment have been unable to keep pilce with the increasing amount 01 ~a'te rna terials and a growing popula tion Iha t funller i1ggrilvates the situation. The concentl""Cllion wlue3 of the trace element3 have been de termined ond aS30cio ted wIth the specific surface area, organic carbon, fraction of particle3 (
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