DISTRIBUTION AND CIRCULATION OF CHROMIUM (Cr) AND CADMIUM (Cd) METALS IN TIGRIS RIVER

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07/7/2014 9:52 AM

DISTRIBUTION AND CIRCULATION OF CHROMIUM (Cr) AND CADMIUM (Cd) METALS IN TIGRIS RIVER

Mohammed N. A. Al-Azzawi Department of Biology, College of Science, University of Baghdad. Baghdad-Iraq.

Abstract


The distribution and circulation of chromium and Cadmium in Tigris river were estimated over a period (2001–2002). Significant difference was observed in the concentration of these metals in any component of the homomorph model in studied area. Result obtained were in agreement with those reported for heavy metal concentrations in other polluted ecosystems. All components of the ecosystem were involved in the circulation of the heavy metals either by accumulation or concentrations processes



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