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  1. 1 Rabajczyk A.

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Influence of land development on heavy metal forms in the Bobrza River ecosystem (Świętokrzyskie Province, Poland)

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Rabajczyk A.
Open Chemistry
|
2011
|
vol. 9
|
issue 2
326-336
EN
Metals are perceived as pollutants but they are also natural substances found in the environment. The surface water environment is under the influence of continuing industrial pollution/effluents. Therefore it is necessary to determine various metal forms present in each component of the water ecosystem. The study presents analysis for Cd, Cu, Cr, Fe, Mn, Ni, Zn and Pb content in the Bobrza River bottom deposits and water. The analysis of water and sediment samples from the Bobrza River taken from the littoral zone at three sampling points: the riverhead, i.e. the natural environment; Białogon - the acidic environment; and Sitkówka-Nowiny - the alkaline environment, were analyzed. Sample quality indicators were defined with pH value, conductivity, heavy metal content for water and suspended matter samples. The metal forms in river sediment were also analyzed. The sediment samples were subjected to Tessier’s five-stage sequential extraction procedure assisted by microwave radiation. Analyte concentration in water samples and in the extracts was determined with the use of F-AAS and GF-AAS techniques. The results obtained reveal a relationship between land development, the degree of metal bonding with suspended matter and metal forms found in river sediments.
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