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Five heavy metals, namely Cd, Cu, Fe, Mn, and Pb in the surface water and through the water column were
studied at 10 selected stations in the Razzazah lake and Karbala drainage canal for the period between
November 1990 to October 1991*. pH and total hardness were also measured. Lead was found to be the highest
in concentration as overall average values, followed by an manganese, iron, copper then cadmium at the
surface as well as along the water column. All the studied metals were below or close to the maximum allowed
limits of Iraqi standards for inland water. The spatial and seasonal variations were discussed.