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Tigris river is considered among the most important sources of water in Iraq. Therefore, an ecological study has been conducted on this river within a stretch in Mosul city starting from Mushirfa site north till Al-Busaif village in the south. The study aimed at verifying the impact of ناميإ يماس جارسلا نورخآو 2 various pollutants including heavy metals on water and sediments. The study started on Spring 2011 through Winter 2012. The heavy metals have been extracted by stander method using Atomic Absorption Spectrophotometer and the estimation of some heavy metal concentrations such as (Zn, Cu, Cd, and Pb) in river water and sediments has been done. The result reveled a significant increase in the concentration of studied heavy metals in water and sediments in the area of Al-Busaif compared with Mushirfa area (as a control group). The concentration of heavy metal in water followed the descending order: Zn> Cu> Pb>Cd. As in sediment the concentration followed the descending order: Cu> Pb>Zn>Cd. This study has showed that the concentration of heavy metals in water and sediments is normal with in the respective determinants of Iraq, and its concentration in sediments more than its in water.

Estimation of the Concentrations of some Heavy Metals in Water and Sediments of Tigris River in Mosul City