Environmental mobility of trace metals in sediments collected in the Lake Balaton

In environmental pollution studies on solid materials sequential extraction techniques are used for the identification of the main binding sites of trace metals. A four-step sequential extraction procedure was applied to the determination of the distribution of elements like Cd, Cu, As, Pb, Cr, Ni,...

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Bibliographic Details
Published in:Fresenius' journal of analytical chemistry 1999, Vol.363 (5-6), p.587-593
Main Authors: POLYAK, K, HLAVAY, J
Format: Article
Language:English
Subjects:
Analysis methods
Applied sciences
Biological and physicochemical properties of pollutants. Interaction in the soil
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Hungary, Balaton L
Pollution
Pollution, environment geology
Soil and sediments pollution
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Summary:In environmental pollution studies on solid materials sequential extraction techniques are used for the identification of the main binding sites of trace metals. A four-step sequential extraction procedure was applied to the determination of the distribution of elements like Cd, Cu, As, Pb, Cr, Ni, Zn, Al, Fe, and Mn in sediment samples collected in the Lake Balaton. The fractions were (1) exchangeable and bound to carbonate, (2) bound to Fe/Mn oxide, (3) bound to organic matter and sulfides, and (4) acid-soluble. Elements were mainly accumulated in the stable, acid-soluble fractions. Arsenic and Cd-ions were found in low concentration (1.2-13 mg/kg and < 1 mg/kg, respectively) in the samples. Based on the results determined at 15 sampling points it can be stated that the Lake Balaton has not yet been polluted by the elements investigated.
ISSN:0937-0633
1432-1130
DOI:10.1007/s002160051254