Home > Search Results: keywords:"analysis of sediments"
Search:
Search Tips :: Advanced Search
Search collections:
Sort by: Display results: Output format:
National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Evaluation of proposed revitalization of the river Ploučnice close to Mimoň in terms of remobilization of historical contamination
 Slabá, Eva ; Matys Grygar, Tomáš ; Elznicová, J.
The aim of the study was to estimate the uranium contamination in the alluvial sediments of original river beds of the Ploučnice river between 72-73 river kilometer on a left bank, near Mimoň town, and evaluate if the contamination should be included into preparation of revitalization projects. The study of contamination was started by mapping the gamma activity of the surface of the floodplain. Based on the resulting map the sediment samples were taken by hand earth drill from the former floodplain and channels abandoned in the 1980s by regulations. The samples were analysed by laboratory X-ray fluorescence (XRF). This step was followed by subsequent mapping by handheld XRF to specify the contamination pattern in the floodplain in more details. The evolution of watershed as well as the exact terrain model were processed by GIS program. Two major contaminated areas have been found, and further sampling was conducted. This enabled us to reconstruct the historical development of contamination at exceptional time scale resolution and describe precisely the evolution from the 19th century to the time of the regulation of that river reach. It has also been shown, that any revitalization in the near future would be probably thwarted due to extremely fast river changes which would cause an immediate re-introduction of the historical contamination into the fluvial system.
Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.
Digital Repository :: Search :: Submit :: Personalize :: Help
Powered by Invenio v1.1.2
Maintained by admin.invenio@techlib.cz
This site is also available in the following languages:
Česky  English