Springer Online Journal Archives 1860-2000
Energy, Environment Protection, Nuclear Power Engineering
Abstract El-Raiyan lakes were created as a reservoir for agricultural drainage wastewater in the Western Desert of Egypt. Physical and chemical properties of water from 17 sampling stations in the lakes and in the springs of the surrounding deserts were monitored every three months during the years 1984 and 1985. Concentrations of metals (cadmium, copper, iron, lead, manganese, mercury, selenium, and zinc) and of inorganic anions (sulfate, sulfite, sulfide, nitrate, nitrite, ammonia, cyanide, thiocyanate, halogens, carbonate, silicate, and phosphate) were generally lower than those reported for other lakes of Egypt which are used as wastewater reservoirs. The concentrations of metals and inorganic anions in water varied according to the distance from the origin of the lakes, depth, and seasons of the year. Concentrations of heavy metals in fish and in selected wild life fauna and flora of the surrounding deserts were also determined. Animals living near the lakes had much higher concentration of heavy metals, particularly lead, mercury, and cadmium, than animals of the same species collected further away from the lakes.
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