Radionuclide Contamination And Remediation Through Plants
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Radionuclide Contamination And Remediation Through Plants
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Author : Dharmendra Kumar Gupta
language : en
Publisher: Springer
Release Date : 2014-07-14
Radionuclide Contamination And Remediation Through Plants written by Dharmendra Kumar Gupta and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-14 with Science categories.
This book focuses on the mechanistic (microscopic) understanding of radionuclide uptake by plants in contaminated soils and potential use of phytoremediation. The key features concern radionuclide toxicity in plants, how the radioactive materials are absorbed by plants, and how the plants cope with the toxic responses. The respective chapters examine soil classification, natural plant selection, speciation of actinides, kinetic modeling, and case studies on cesium uptake after radiation accidents. Radionuclide contaminants pose serious problems for biological systems, due to their chemical toxicity and radiological effects. The processes by which radionuclides can be incorporated into vegetation can either originate from activity interception by external plant surfaces (either directly from the atmosphere or from resuspended material), or through uptake of radionuclides via the root system. Subsequent transfer of toxic elements to the human food chain is a concrete danger. Therefore, the molecular mechanisms and genetic basis of transport into and within plants needs to be understood for two reasons: The effectiveness of radionuclide uptake into crop plants – so-called transfer coefficient – is a prerequisite for the calculation of dose due to the food path. On the other hand, efficient radionuclide transfer into plants can be made use of for decontamination of land – so-called phytoremediation, the direct use of living, green plants for in situ removal of pollutants from the environment or to reduce their concentrations to harmless levels.
Radionuclides In The Environment
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Author : Clemens Walther
language : en
Publisher: Springer
Release Date : 2015-10-30
Radionuclides In The Environment written by Clemens Walther and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-30 with Science categories.
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, radionuclides are removed from plants by the airstre am 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.
Radionuclides In The Environment
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Author : Clemens Walther
language : en
Publisher:
Release Date : 2015
Radionuclides In The Environment written by Clemens Walther and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
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.
Uranium In Plants And The Environment
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Author : Dharmendra K. Gupta
language : en
Publisher: Springer
Release Date : 2019-05-06
Uranium In Plants And The Environment written by Dharmendra K. Gupta and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-06 with Science categories.
In recent years, radioactive contamination in the environment by uranium (U) and its daughters has caused increasing concerns globally. This book provides recent developments and comprehensive knowledge to the researchers and academicians who are working on uranium contaminated areas worldwide. This book covers topics ranging from the beginning of the nuclear age until today, including historical views and epidemiological studies. Modelling practices and evaluation of radiological and chemical impact of uranium on man and the environment are included. Also covered are analytical methods used for the determination of uranium in geo/bio environments. Some chapters explore factors which influence uranium speciation and in consequence plant uptake/translocation. Last but not least, several chapters provide approaches and practices for remediation of uranium contaminated areas.
Radioecology And The Restoration Of Radioactive Contaminated Sites
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Author : F.F. Luykx
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Radioecology And The Restoration Of Radioactive Contaminated Sites written by F.F. Luykx and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Most of the nuclear facilities built since the Second World War have ceased active operation and have been decommissioned. Some of the sites are heavily contaminated with radioactive substances. Correct and efficient action to mitigate the radiological consequences of such contamination will only be possible when the behaviour of radionuclides in the terrestrial environment is sufficiently well known. Yet radioecologists often find it difficult to study the transfer of radioactivity in agricultural land and semi-natural ecosystems, because of the complexity and diversity of such environments. The present book presents an analysis of all the factors that affect the behaviour of radionuclides as they move from their point of release through the environment and then enter the tissues of biota living in the ecosystems, in particular plants and animals consumed by humans. The course on which the book is based was held in a region that is heavily contaminated by radioactive discharges into the environment during nuclear weapons fabrication in the 1950s and '60s, and due to a severe accidental release following the explosion of a rad-waste tank in 1957. This allowed in situ training of the students. The book's main emphasis is on specific radioecological problems in severely contaminated areas in the former Soviet Union: the Southern Urals Trail, the rivers Techa-Isert-Tobol-Irtis-Ob, and the 30 km zone around Chernobyl. Systems examined include soils, arable and pasture land, forests, lakes and rivers. Special attention is paid to the effects of radiation on natural ecosystems: trees, soil-dwelling organisms, and aquatic organisms. Synergistic effects are also considered. Short, medium and long term countermeasures are discussed.
Remediation Measures For Radioactively Contaminated Areas
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Author : Dharmendra K. Gupta
language : en
Publisher: Springer
Release Date : 2019-01-12
Remediation Measures For Radioactively Contaminated Areas written by Dharmendra K. Gupta and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-12 with Technology & Engineering categories.
This book offers extensive and comprehensive knowledge to the researchers and academicians who are working on decontamination of radioactively contaminated areas. Remediation strategies for contaminated sites are provided. Readers who will find this book useful include professionals specializing in radioecology, safe disposal of radioactive waste, as well as decontamination, remediation legacies and impact of radioactive waste material on the environment. The chapters give a broad overview and reviews of a number of original publications on remediation strategies that were explored after the Chernobyl and Fukushima Nuclear Power plant accidents. Useful case studies are provided that explore the latest technological developments and future trends for affected area decontamination.
Inorganic Contaminants And Radionuclides
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Author : Ravi Naidu
language : en
Publisher: Elsevier
Release Date : 2023-10-17
Inorganic Contaminants And Radionuclides written by Ravi Naidu and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-17 with Technology & Engineering categories.
Inorganic Contaminants and Radionuclides is a single reference covering common inorganic contaminants in detail, including their distribution in the environment, challenges linked to management, geogenic sources, anthropogenic sources, exposure and effects, international agreements and legislation relating to the contaminant, remediation options and global case studies. In addition, the book provides summaries of contaminated sites and key details about contaminants to present a more comprehensive understanding and improve remediation and management practices. The book's clear, consistent organization makes it a valuable resource for researchers, students and practitioners working in environmental science, environmental management and environmental engineering. One of the major constraints to assessing and remediating contaminated sites is the lack of awareness of the extent and severity of contaminated sites amongst the community, regulators, policymakers, industry operators, university graduates and environmental managers. This book helps to manage these constraints. Provides a one-stop reference on the nature and properties of inorganic contaminants, including a transdisciplinary approach to managing contaminated sites Includes global case studies covering contaminated site assessment, management and remediation Presents in-depth research and data on specific contaminants, with a separate chapter for each contaminant
Behaviour Of Strontium In Plants And The Environment
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Author : Dharmendra K. Gupta
language : en
Publisher: Springer
Release Date : 2017-10-26
Behaviour Of Strontium In Plants And The Environment written by Dharmendra K. Gupta and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-26 with Science categories.
This book provides extensive and comprehensive knowledge to researchers and academics who work on strontium contaminated areas. Topics covered include impact on plants and environment, as well as remediation strategies. This book will inform graduate and undergraduate students who are specializing in radioecology, especially strontium uptake via soil to plants, safe disposal of strontium waste, remediation legacies and impact of strontium waste material on the natural and manmade environment. A broad overview of reviews is provided covering a number of original publications on strontium plant uptake, including case studies that present the latest technological developments and future trends for investigating strontium mobility in soil and treatment of strontium contaminated areas.
Radioactive Fallout In Soils Crops And Food
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Author : F. P. W. Winteringham
language : en
Publisher: Food & Agriculture Org.
Release Date : 1989
Radioactive Fallout In Soils Crops And Food written by F. P. W. Winteringham and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Technology & Engineering categories.
Behaviour and significance of radioactive substances released into agricultural, forestry and fisheries; Radioation in the environment; Radioecology, behaviour, significance, models; Chernobyl and other accidents; Some international situation in Europe after Chernobyl; Some international implications; Soil and crop contamination by rarioactive fallout; Agricultural and forestry soils as a vital global resource; Soil in the nutrient cycle; Sources and nature of radioactive contamination; Biological significance of contaminated soils; Behaviour in soils and movement into foodwebs; Detection and measurement; Countermeasures, reclamation and use of contaminated soils; Concluding comments; some questions and needs.
Radioactive Contamination Research Developments
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Author : Nadine K. Henshaw
language : en
Publisher:
Release Date : 2010
Radioactive Contamination Research Developments written by Nadine K. Henshaw and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Radioactive pollution categories.
Radioactive contamination is the uncontrolled distribution of radioactive material in a given environment. Radioactive contamination is typically the result of a spill or accident during the production or use of a radionuclide. Contamination may occur from radioactive gases, liquids or particles. For example, if a radionuclide used in nuclear medicine is accidentally spilled, the material could be spread by people as they walk around. Radioactive contamination may also be an inevitable result of certain processes, such as the release of radioactive xenon in nuclear fuel reprocessing. In cases where radioactive material cannot be contained, it may be diluted to safe concentrations. Containment is what differentiates radioactive material from radioactive contamination. Therefore, radioactive material in sealed and designated containers is not properly referred to as contamination. According to various studies, although some radioactive contamination may be smaller than the internationally permitted radioactivity standards, it gains significance day by day and therefore is one of the potentially developing concerns in years to come. This book presents current research on this serious environmental and health issue.