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Radionuclides in the environmentinfl...

Gupta, Dharmendra K.

Radionuclides in the environmentinfluence of chemical speciation and plant uptake on radionuclide migration /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Radionuclides in the environmentedited by Clemens Walther, Dharmendra K. Gupta.
其他題名:	influence of chemical speciation and plant uptake on radionuclide migration /
其他作者:	Walther, Clemens.
出版者:	Cham :Springer International Publishing :2015.
面頁冊數:	x, 273 p. :ill., digital ;24 cm.
Contained By:	Springer eBooks
標題:	RadioisotopesEnvironmental aspects.
電子資源:	http://dx.doi.org/10.1007/978-3-319-22171-7
ISBN:	9783319221717$q(electronic bk.)

Radionuclides in the environmentinfluence of chemical speciation and plant uptake on radionuclide migration /
Radionuclides in the environmentinfluence of chemical speciation and plant uptake on radionuclide migration /[electronic resource] :edited by Clemens Walther, Dharmendra K. Gupta. - Cham :Springer International Publishing :2015. - x, 273 p. :ill., digital ;24 cm.

Sources contributing to radionuclides in the environment - with focus on radioactive particles -- Mobility and bioavailability of radionuclides in soils -- The influence of edaphic factors on spatial and vertical distribution of radionuclides in soil -- Modelling speciation and distribution of radionuclides in agricultural soils -- Radiotracers as a tool to elucidate trace element behaviour in the water-sediment interface -- Uptake and retention of simulated fallout of radiocaesium and radiostrontium by different agriculture crops -- Root uptake/foliar uptake of radionuclides in natural ecosystem -- Assessment of radioactivity in forest and grassland ecosystems -- Terrestrial environmental dynamics of radioactive nuclides -- Biotransformation of radionuclides: Trends and challenges -- Methods of decrease of radionuclides transfer from soil to agricultural vegetation -- Bacterial diversity in clay and actinide interactions with bacterial isolates in relation to nuclear waste disposal -- Analysis of radionuclides in environmental samples -- Uncertainty analysis and risk assessment.

This book provides extensive and comprehensive information to researchers and academicians who are interested in radionuclide contamination, its sources and environmental impact. It is also useful for graduate and undergraduate students specializing in radioactive-waste disposal and its impact on natural as well as manmade environments. A number of sites are affected by large legacies of waste from the mining and processing of radioactive minerals. Over recent decades, several hundred radioactive isotopes (radioisotopes) of natural elements have been produced artificially, including 90Sr, 137Cs and 131I. Several other anthropogenic radioactive elements have also been produced in large quantities, for example technetium, neptunium, plutonium and americium, although plutonium does occur naturally in trace amounts in uranium ores. The deposition of radionuclides on vegetation and soil, as well as the uptake from polluted aquifers (root uptake or irrigation) are the initial point for their transfer into the terrestrial environment and into food chains. There are two principal deposition processes for the removal of pollutants from the atmosphere: dry deposition is the direct transfer through absorption of gases and particles by natural surfaces, such as vegetation, whereas showery or wet deposition is the transport of a substance from the atmosphere to the ground by snow, hail or rain. Once deposited on any vegetation, radionuclide s ar e removed from plants by the airstream and rain, either through percolation or by cuticular scratch. The increase in biomass during plant growth does not cause a loss of activity, but it does lead to a decrease in activity concentration due to effective dilution. There is also systemic transport (translocation) of radionuclides within the plant subsequent to foliar uptake, leading the transfer of chemical components to other parts of the plant that have not been contaminated directly.

ISBN: 9783319221717$q(electronic bk.)

Standard No.: 10.1007/978-3-319-22171-7doiSubjects--Topical Terms:

193402
Radioisotopes
--Environmental aspects.

LC Class. No.: TD196.R3

Dewey Class. No.: 628.52

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