Fractionation and mobility of copper, cadmium, and lead in some soil irrigated with sewage water in Qena governorate, Upper Egypt [electronic resource]

Includes bibliographic reference

This study was conducted to investigate the chemical fractionation and mobility of Cu, Cd and Pb in some soil irrigated with
sewage water in Qena governorate, Upper Egypt. Sequential extraction results showed that in the treated soil, a major proportion
of Cu, Pb, and Cd was associated with poorly crystalline iron oxide bound (PCFeOX), crystalline iron oxide – occluded (CFeOX)
and a major proportion of Cu, Pb and Cd was associated with residual (RES) fractions. Based on relative percent. the results
also show that The non-labile Cu, Cd and Pb in the non-irrigated soil partially transformed to the potentially labile Cu due
to the irrigation with sewage water Also, a part of the readily labile and potentially labile Cu, Cd and Pb of the sewage water
irrigated soils for short time transformed to the non-labile fraction with irrigation with same water for a long time.
Higher mobility of metals in the soils irrigated with sewage water for short time represent a potential hazard for the
redistribution and translocation of these metals into the food chain and leach to ground water.
Key words: Soil properties, Heavy metal fractions, mobility, sewage water.

Summary in Arabic