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Predicted Fate Of Tritium Residuum From Groundwater Tracer Experiments In The Amargosa Desert Southern Nevada
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Book Synopsis Predicted Fate of Tritium Residuum from Groundwater Tracer Experiments in the Amargosa Desert, Southern Nevada by :
Download or read book Predicted Fate of Tritium Residuum from Groundwater Tracer Experiments in the Amargosa Desert, Southern Nevada written by and published by . This book was released on 1993 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytic solutions are used in this study to evaluate potential groundwater transport of tritium used in goundwater tracer tests southwest of the Nevada Test Site. Possible transport from this site is of interest because initial radionuclide concentrations were high and the site is close to goundwater discharge points (12 km). Anecdotal evidence indicates that 90 percent of these tracers were removed by pumping at the completion of the tests; this study examines the probable transport of the tracers with and without the removal. Classical dispersive transport analytic solutions are used, treating the tracer test as a point slug injection. Input parameters for the solutions were measured at the site, and consideration of parameter uncertainty is incorporated in the results. With removal of the tracer, the maximum expected region with above-Safe Drinking Water Act (40 CFR 121) concentrations of tritium extends 5 km from the injection point, and does not reach any sites of public access. Detectable tritium from the tests is likely to have reached the Ash Meadows fault zone, but flow along the fault probably diluted the tracer to below detection limits before arrival at springs along the fault. Arrival at the springs would have occurred 20 to 25 years after the tests. Without removal of the tracer, the solutions indicate that tritium concentrations just above Safe Drinking Water Act standards would have reached the Ash Meadows fault zone. In this case, detectable tritium might have been found in Devil's Hole or Longstreet Spring, the nearest points of possible public exposure.
Book Synopsis Predicted Fate of Tritium Residuum from Groundwater Tracer Experiments in the Amargosa Desert, Southern Nevada by : Tom Harry Brikowski
Download or read book Predicted Fate of Tritium Residuum from Groundwater Tracer Experiments in the Amargosa Desert, Southern Nevada written by Tom Harry Brikowski and published by . This book was released on 1993 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Desert Research Institute Publications of the Water Resources Center by : University of Nevada System. Water Resources Center
Download or read book Desert Research Institute Publications of the Water Resources Center written by University of Nevada System. Water Resources Center and published by . This book was released on 1996-02 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Price list of available publications.
Author :University and Community College System of Nevada. Water Resources Center Publisher : ISBN 13 : Total Pages :128 pages Book Rating :4.F/5 ( download)
Book Synopsis Publications of the Water Resources Center by : University and Community College System of Nevada. Water Resources Center
Download or read book Publications of the Water Resources Center written by University and Community College System of Nevada. Water Resources Center and published by . This book was released on 1997 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tritium, Deuterium, and Oxygen-18 in Water Collected from Unsaturated Sediments Near a Low-level Radioactive-waste Burial Site South of Beatty, Nevada by : David E. Prudic
Download or read book Tritium, Deuterium, and Oxygen-18 in Water Collected from Unsaturated Sediments Near a Low-level Radioactive-waste Burial Site South of Beatty, Nevada written by David E. Prudic and published by . This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the Water Resources Center by : University of Nevada System. Center for Water Resources Research
Download or read book Publications of the Water Resources Center written by University of Nevada System. Center for Water Resources Research and published by . This book was released on 1998 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tritium Plume Dynamics in the Shallow Unsaturated Zone Adjacent to an Arid Waste-disposal Facility, Amargosa Desert Research Site, Nevada by : Stephen Robert Maples
Download or read book Tritium Plume Dynamics in the Shallow Unsaturated Zone Adjacent to an Arid Waste-disposal Facility, Amargosa Desert Research Site, Nevada written by Stephen Robert Maples and published by . This book was released on 2012 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous studies at the Amargosa Desert Research Site in southern Nevada have documented two plumes of tritiated water-vapor adjacent to a closed, commercial low-level radioactive waste disposal facility. Wastes were disposed at the facility from 1962-92. Tritium has moved long distances through a shallow dry gravelly layer, much further than predicted by standard transport models. Geostatistical methods, spatial moment analyses and tritium flux calculations were applied to assess shallow plume dynamics. Results indicate that the total gravel-layer tritiated water-vapor mass diminished faster than would be expected from radioactive decay. Both plumes exhibited center-of-mass stability, suggesting that bulk-plume movement was minimal during the period of study. Nonetheless, evidence indicates the intra-plume mass redistribution is ongoing. Previous studies have recognized that vertical movement of tritiated water from sub-root-zone gravel into the root-zone contributes to atmospheric release via evapotranspiration. Observed changes in plume mass may be attributed to the atmosphere acting as a tritium sink and radioactive decay.
Book Synopsis Vertical Tritium Transport from the Shallow Unsaturated Zone to the Atmosphere, Amargosa Desert Research Site, Nevada by : Christina Amanda Garcia
Download or read book Vertical Tritium Transport from the Shallow Unsaturated Zone to the Atmosphere, Amargosa Desert Research Site, Nevada written by Christina Amanda Garcia and published by . This book was released on 2007 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the impact of desert vegetation on tritium transport and fate is essential when considering radioactive waste isolation in the western United States. This study uses filed data to estimate the magnitude and spatio-temporal variability of tritiated-water vapor tritium transport from the shallow unsaturated zone to the atmosphere adjacent to a radioactive waste facility and numerical modeling to clarify tritium transport mechanisms beneath desert vegetation. A 2-year tritiated-water vapor mass was released within the study area and quantified using evaporation, transpiration, and tritiated-water vapor concentrations in plants and shallow soil. Numerical simulation results indicate that root uptake by desert vegetation can lead to upward water movement below the root zone. This can increase the upward tritiated-water vapor flux. Amplified upward fluxes prevent long term shallow subsurface moisture accumulation, limiting moisture penetration below the root zone and the potential for groundwater contamination.--Adapted from the abstract.
Book Synopsis Hydrogeology of Morgan Valley, Morgan County, Utah by : Janae Wallace
Download or read book Hydrogeology of Morgan Valley, Morgan County, Utah written by Janae Wallace and published by Utah Geological Survey. This book was released on 2012-01-16 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report characterizes the relationship of geology to groundwater occurrence and flow, with emphasis on determining the thickness of the valley-fill aquifer and water yielding properties of the fractured rock aquifers. Develops a water budget for the drainage basin and classifies the groundwater quality and identifies the likely sources of nitrate in groundwater.
Book Synopsis Isotope Methods for Dating Old Groundwater by : International Atomic Energy Agency
Download or read book Isotope Methods for Dating Old Groundwater written by International Atomic Energy Agency and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook provides theoretical and practical information for using a variety of isotope tracers for dating old groundwater, i.e. water stored in geological formations for periods ranging from about 1000 to one million years. Theoretical underpinnings of the methods and guidelines for their use in different hydrogeological environments are described. The guidebook also presents a number of case studies providing insight into how various isotopes have been used in aquifers around the world. The methods, findings and conclusions presented in this publication will enable students and practicing groundwater scientists to evaluate the use of isotope dating tools for specific issues related to the assessment and management of groundwater resources. In addition, the guidebook will be of use to the scientific community interested in issues related to radioactive waste disposal in geological repositories.
Download or read book Perchlorate written by Baohua Gu and published by Springer Science & Business Media. This book was released on 2006-07-02 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a detailed description of perchlorate chemistry and recent advances in innovative remediation technologies for perchlorate contamination and their pros and cons Additionally, the first book to describe the natural occurrence of perchlorate and its unique isotopic signatures for environmental forensics and its detection in the environment, particularly the real-time analysis using surface enhanced Raman spectroscopy
Book Synopsis Springs of Texas by : Gunnar M. Brune
Download or read book Springs of Texas written by Gunnar M. Brune and published by Texas A&M University Press. This book was released on 2002 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text explores the natural history of Texas and more than 2900 springs in 183 Texas counties. It also includes an in-depth discussion of the general characteristics of springs - their physical and prehistoric settings, their historical significance, and their associated flora and fauna.
Book Synopsis The California State Water Project by : California. Dept. of Water Resources
Download or read book The California State Water Project written by California. Dept. of Water Resources and published by . This book was released on 1981 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Analytical Techniques for Metallomics and Metalloproteomics by : Chunying Chen
Download or read book Nuclear Analytical Techniques for Metallomics and Metalloproteomics written by Chunying Chen and published by Royal Society of Chemistry. This book was released on 2010-06-03 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear analytical techniques have many advantages over other techniques, such as high sensitivity and precision. They couple powerful selective separation with sensitive element-specific detection. The uses of metalloproteomics studies are restricted to the fields of analytical and nuclear chemistry. They also have great potential to elucidate the origins of certain diseases and assist in their diagnosis and treatment via the development of new drugs. Nuclear Analytical Techniques for Metallomics and Metalloproteomics provides readers with a comprehensive view of this relatively new and exciting area of bioanalytical and inorganic chemistry. It contains contributions from experts in disciplines as diverse as analytical chemistry, nuclear chemistry, environmental science, molecular biology and medicinal chemistry. Various nuclear analytical techniques are covered including neutron activation analysis, X-ray fluorescence, isotope tracer, M÷ssbauer spectrometry, X-ray absorption spectrometry, and neutron scattering and diffraction. They provide useful information both for chemical speciation analysis and structural characterization of metalloproteins and metals in biological systems. Consequently, the book is not only relevant for chemists involved in nuclear techniques and speciation, but also environmental, nutritional and clinical researchers and drug developers.
