Author: Maria-Evangelia SoutiPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Natural and Artificial Radionuclides as Tracers in Fluvial Systems
Author: Maria-Evangelia SoutiNatural and artificial radionuclides as tracers of ocean processes
Author: Jixin QiaoPublisher: Frontiers Media SA
ISBN: 2832521770
Category : Science
Languages : en
Pages : 160
Book Description
Environmental Radionuclides
Author: Klaus FroehlichPublisher: Elsevier
ISBN: 0080913296
Category : Science
Languages : en
Pages : 453
Book Description
Environmental Radionuclides presents a state-of-the-art summary of knowledge on the use of radionuclides to study processes and systems in the continental part of the Earth’s environment. It is conceived as a companion to the two volumes of this series, which deal with isotopes as tracers in the marine environment (Livingston, Marine Radioactivity) and with the radioecology of natural and man-made terrestrial systems (Shaw, Radioactivity in Terrestrial Ecosystems). Although the book focuses on natural and anthropogenic radionuclides (radioactive isotopes), it also refers to stable environmental isotopes, which in a variety of applications, especially in hydrology and climatology, have to be consulted to evaluate radionuclide measurements in terms of the ages of groundwater and climate archives, respectively. The basic principles underlying the various applications of natural and anthropogenic radionuclides in environmental studies are described in the first part of the book. The book covers the two major groups of applications: the use of radionuclides as tracers for studying transport and mixing processes: and as time markers to address problems of the dynamics of such systems, manifested commonly as the so-called residence time in these systems. The applications range from atmospheric pollution studies, via water resource assessments to contributions to global climate change investigation. The third part of the book addresses new challenges in the development of new methodological approaches, including analytical methods and fields of applications. A state-of-the-art summary of knowledge on the use of radionuclides Conceived as a companion to the two volumes of this series, which deal with isotopes as tracers
Natural Radionuclides as Tracers for Behavior, Transport and Fate of Particle-associated Contaminants in the Hudson River Estuary
Author: Huan FengRadionuclides in the Study of Marine Processes
Author: P.J. KershawPublisher: Springer Science & Business Media
ISBN: 9401136866
Category : Science
Languages : en
Pages : 402
Book Description
The Norwich Symposium, 'Radionuclides in the Study of Marine Proces ses', is a sequel to the very successful conference held at Cherbourg, France in June 1987. The international character of the meeting has been maintained with thirty-eight contributions, from seventeen countries, being accepted for oral presentation. For many years, the radioactive properties of the naturally occurring radionuclides have been used to determine their distributions in the marine environment and, more generally, to gain an understanding of the dynamic processes which control their behaviour in attaining these distributions. More recently the inputs from human activities of both natural and artificial (i.e. man-made) radionuclides have provided additional opportunities for the study of marine processes on local, regional and global scales. Because the sources of artificial radionuclides are often reasonably well defined in space and time, and because a wider range of elements is represented, new viewpoints for the study of processes have become available. Although it is outside the scope of this Symposium, it must be acknowledged that the radiological protection requirements for radioactive waste disposal prac tices to be based on a sound scientific understanding of radionuclide behaviour in the sea have also provided a very strong impetus for the studies.
Sources and Uses of Artificial Radionuclides as Tracers in the Marine Environment
Author: R. J. PentreathPublisher:
ISBN:
Category : Radioisotopes
Languages : en
Pages :
Book Description
Radionuclides of Columbia River Origin in Marine Organisms, Sediments, and Water Collected from the Coastal and Offshore Waters of Washington and Oregon, 1961-1963
Author: Allyn Henry SeymourPublisher:
ISBN:
Category : Aquatic organisms
Languages : en
Pages : 84
Book Description
Application of Geochemical Tracers to Fluvial Sediment
Author: Jerry R. MillerPublisher: Springer
ISBN: 3319132210
Category : Science
Languages : en
Pages : 148
Book Description
This book takes an in-depth look at the theory and methods inherent in the tracing of riverine sediments. Examined tracers include multi-elemental concentration data, fallout radionuclides (e.g., 210Pb, 137Cs, 7Be), radiogenic isotopes (particularly those of Pb, Sr, and Nd), and novel (“non-traditional”) stable isotopes (e.g., Cd, Cu, Hg, and Zn), the latter of which owe their application to recent advances in analytical chemistry. The intended goal is not to replace more ‘traditional’ analyses of the riverine sediment system, but to show how tracer/fingerprinting studies can be used to gain insights into system functions that would not otherwise be possible. The text, then, provides researchers and catchment managers with a summary of the strengths and limitations of the examined techniques in terms of their temporal and spatial resolution, data requirements, and the uncertainties in the generated results. The use of environmental tracers has increased significantly during the past decade because it has become clear that documentation of sediment and sediment-associated contaminant provenance and dispersal is essential to mitigate their potentially harmful effects on aquatic ecosystems. Moreover, the use of monitoring programs to determine the source of sediments to a water body has proven to be a costly, labor intensive, long-term process with a spatial resolution that is limited by the number of monitoring sites that can be effectively maintained. Alternative approaches, including the identification and analysis of eroded upland areas and the use of distributed modeling routines also have proven problematic. The application of tracers within riverine environments has evolved such that they focus on sediments from two general sources: upland areas and specific, localized, anthropogenic point sources. Of particular importance to the former is the development of geochemical fingerprinting methods that quantify sediment provenance (and to a much lesser degree, sediment-associated contaminants) at the catchment scale. These methods have largely developed independently of the use of tracers to document the source and dispersal pathways of contaminated particles from point-sources of anthropogenic pollution at the reach- to river corridor-scale. Future studies are likely to begin merging the strengths of both approaches while relying on multiple tracer types to address management and regulatory issues, particularly within the context of the rapidly developing field of environmental forensics.
Radionuclides in the oceans
Author: Pierre GuéguéniatPublisher: EDP Sciences
ISBN: 2759801381
Category : Technology & Engineering
Languages : en
Pages : 246
Book Description
IPSN compiles and reviews the available information on artificial radioactivity in seas and oceans. The data collected in this book give an assessment of radionuclide distributions which will be useful to address scientific and wider public concerns about radionuclides found in the aquatic environment.
Author: Niraj Kumar