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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Occurrence of mercury in the soil around upper stream Ohře
 MILLER, Zbyněk
The aim of this study was to summarize information about the behavior of mercury in soils, particularly the assessment of its mobility and bioavailability, and to verify the extent of contamination of alluvial soils under the reservoir Skalka. This research was aimed to evaluate the contamination of mercury floodplain soils with mercury belong the upper river Ohře near the town of Chvoječná, near 230th river kilometer. River sediments of the upper river Ohře and the surrounding alluvial soils in floodplains contain high mercury levels. The site has been sampled for mercury analysis of soil samples taken from farmed areas, which are expected enrichment of mercury deposits of the inserted river Ohře. There were two main types of land-use, permanent grassland and arable land. The observed results can be concluded that the river floodplain sediments enrich the soil with mercury. Analytical method (atomic absorption spectrometry, CV-AAS) showed that almost all surface soil samples from the flooded area exceeds the maximum allowed value (for light soils 0.6 mg.kg-1 and other land 0.8 mg.kg-1 ) that are designated for agricultural land. Indicative of mercury was determined by mobility, which was up to 2.18%. Levels of organic forms of mercury were also measured in the soils that reached the area of grassland 2 maximum 0.147 mg.kg-1; the subsidiary surface S1 had the relative distribution of organic mercury 10.98% at a depth of 101-140 cm.
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