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Fractionation of Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn has been performed in bottom sediment samples collected along a 75 km section of the middle Odra River by a modified method of 5-step sequential extraction according to Tessier. The results have shown the presence of Cu, Ni, Zn and Mn already in exchange fraction (I); the mean percent content of metals in mobile phases (exchange and carbonate) reached...
Research on aluminium speciation was performed using a slightly modified version of Tessier’s procedure. The soils under study displayed strongly acidic character (pH KCl of 3.3 - 4.4). The content of aluminium in the exchangeable (11 mg/kg), acid extractable (67 mg/kg), oxidizable (2650 mg/kg), reducible (658 mg/kg) and residual fraction (24,680 mg/kg) varied widely. The percentage of labile phase...
The Odra is the second largest river in Poland, running from the Czech Republic through a large part of Poland before entering the Baltic Sea. Its catchment area has been heavily polluted by anthropogenic emissions. Our data document an intensive anthropogenic impact on the abundance of heavy metals in bottom sediments of the middle part of the Odra. Normalized heavy metal concentrations in sediments...
This study was aimed at recognizing the levels of arsenic, antimony and selenium concentrations in different zones of the lake ecosystem. Total content as well as inorganic species of the studied metalloids were considered. Shallow Lake Jarosławieckie (Wielkopolski National Park) was chosen for the study reported. Water samples were collected in different macrophyte communities of the phytolittoral...
This paper presents results of speciation analysis of bottom sediments. In our examinations a five-step extraction procedure was applied. Direct analysis of sediments and analysis of extracts was carried out by X-ray fluorescence spectrometry with wavelength dispersion. Examinations were carried out with the use of lake sediments CRM.
Analytical procedures for the determination of selected speciation forms of sulphur have been proposed. The method for conversion of sulphur sols into homogeneous solutions sols allowing simultaneous determination of sulphur either in model solutions or in sols environmental samples has been described. The methods for determination of sulphur sols, elemental sulphur, soluble and insoluble sulphides,...
The work reported in this paper deals with the content of trace metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) in bottom sediments of Goreckie Lake, situated in Wielkopolski National Park, Western Poland. Apart from total concentration, the distribution of the above metals into five fractions: exchangeable, bound to carbonates, bound to Fe-Mn oxides, bound to organic matter, and residual was studied...
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