Download or read book Natural and artificial radionuclides as tracers of ocean processes written by Jixin Qiao and published by Frontiers Media SA. This book was released on 2023-04-26 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Radioactivity written by and published by Elsevier. This book was released on 2004-09-17 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on Marine Radioactivity sets out to cover most of the aspects of marine radioactivity which have been the focus of scientific study in recent decades. The authors and their reviews divide into topic areas which have defined the field over its history. They cover the suite of natural radioisotopes which have been present in the oceans since their formation and quantitatively dominate the inventory of radioactivity in the oceans. Also addressed are the suite of artificial radionuclides introduced to the oceans as a consequence of the use of the atom for development of nuclear energy, nuclear weapons and various applications of nuclear science. The major source of these continues to derive from the global fallout of atmospheric tests of nuclear weapons in the 1950s and 1960s but also includes both planned and accidental releases of radioactivity from both civilian and military nuclear technology. The other division of the major study direction depends on whether the objective is to use the radionuclides as powerful tools to study oceanic processes, to describe and understand the ocean distribution of the various natural or artificial radionuclides or to assess the different radionuclides' impact on and pathways to man or marine organisms. The oceans cover 70% of the Earth's surface and thus contains a corresponding large share of the Earth's radioactivity. Marine Radioactivity covers topics of recent scientific study in this young field. It examines both natural radioactivity (radioactivity naturally present in oceans since their formation) and artificial radioactivity (radioactivity introduced by man and use of atomic and nuclear energy) with regard to possible effects on the global environment.
Download or read book Handbook of Environmental Isotope Geochemistry written by Mark Baskaran and published by Springer Science & Business Media. This book was released on 2011-10-13 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of radioactive and stable isotopes have revolutionized our understanding of the Earth and near-earth surface processes. The utility of the isotopes are ever-increasing and our sole focus is to bring out the applications of these isotopes as tracers and chronometers to a wider audience so that they can be used as powerful tools to solve environmental problems. New developments in this field remain mostly in peer-reviewed journal articles and hence our goal is to synthesize these findings for easy reference for students, faculty, regulators in governmental and non-governmental agencies, and environmental companies. While this volume maintains its rigor in terms of its depth of knowledge and quantitative information, it contains the breadth needed for wide variety problems and applications in the environmental sciences. This volume presents all of the newer and older applications of isotopes pertaining to the environmental problems in one place that is readily accessible to readers. This book not only has the depth and rigor that is needed for academia, but it has the breadth and case studies to illustrate the utility of the isotopes in a wide variety of environments (atmosphere, oceans, lakes, rivers and streams, terrestrial environments, and sub-surface environments) and serves a large audience, from students and researchers, regulators in federal, state and local governments, and environmental companies.
Download or read book Tracers in the Sea written by Wallace S. Broecker and published by . This book was released on 1982 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Worldwide Marine Radioactivity Studies WOMARS written by International Atomic Energy Agency and published by . This book was released on 2005 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarises the results of a Coordinated Research Project carried out by the IAEA's Marine Environment Laboratory in Monaco. The results obtained confirm that the dominant source of anthropogenic radionuclides in the marine environment is global fallout.
Download or read book The Anthropocene as a Geological Time Unit written by Jan Zalasiewicz and published by Cambridge University Press. This book was released on 2019-03-07 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the evidence underpinning the Anthropocene as a geological epoch written by the Anthropocene Working Group investigating it. The book discusses ongoing changes to the Earth system within the context of deep geological time, allowing a comparison between the global transition taking place today with major transitions in Earth history.
Download or read book Isotopes in the Water Cycle written by Pradeep K. Aggarwal and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental isotope and nuclear techniques provide unmatched insights into the processes governing the water cycle and its variability. This monograph presents state of the art applications and new developments of isotopes in hydrology, environmental disciplines and climate change studies. Coverage ranges from the assessment of groundwater resources in terms of recharge and flow regime to studies of the past and present global environmental and climate changes.
Download or read book Oil in the Sea III written by National Research Council and published by National Academies Press. This book was released on 2003-03-14 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the early 1970s, experts have recognized that petroleum pollutants were being discharged in marine waters worldwide, from oil spills, vessel operations, and land-based sources. Public attention to oil spills has forced improvements. Still, a considerable amount of oil is discharged yearly into sensitive coastal environments. Oil in the Sea provides the best available estimate of oil pollutant discharge into marine waters, including an evaluation of the methods for assessing petroleum load and a discussion about the concerns these loads represent. Featuring close-up looks at the Exxon Valdez spill and other notable events, the book identifies important research questions and makes recommendations for better analysis ofâ€"and more effective measures againstâ€"pollutant discharge. The book discusses: Inputâ€"where the discharges come from, including the role of two-stroke engines used on recreational craft. Behavior or fateâ€"how oil is affected by processes such as evaporation as it moves through the marine environment. Effectsâ€"what we know about the effects of petroleum hydrocarbons on marine organisms and ecosystems. Providing a needed update on a problem of international importance, this book will be of interest to energy policy makers, industry officials and managers, engineers and researchers, and advocates for the marine environment.
Download or read book Marine Geochemistry written by Roy Chester and published by John Wiley & Sons. This book was released on 2009-04-01 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of Marine Geochemistry received strongcritical acclaim, and the reviews included the comments that it'provides a benchmark in the field' and 'is clearly recognizable asa standard text for years to come'. Marine Geochemistry offers a fully comprehensive andintegrated treatment of the chemistry of the oceans, theirsediments and biota. It addresses the fundamental question 'How dothe oceans work as a chemical system?' by capitalizing on thesignificant advances in understanding oceanic processes made overthe past three decades. These advances have been facilitated byimproved sampling and analytical techniques, a better understandingof theoretical concepts and the instigation of large-sizedinternational oceanographic programs. Designed for use as a text, the book treats the oceans as a'unified system' in which material stored in the sea water, thesediment and the rock reservoirs interacts to control thecomposition of sea water itself. Part I covers the transport ofmaterial to the oceans via rivers, the atmosphere and hydrothermalsystems, and discusses their relative flux magnitudes. Part IIconsiders the oceans as a reservoir, introducing water-columnparameters before discussing water-column fluxes and the benthicboundary layer. Part III is devoted to the sediment reservoir. Thetopics covered include diagenesis, the major components of thesediments, and the processes controlling the geochemistry ofoceanic deposit, which are discussed in terms of sediment-formingsignals. Part IV offers an overview and synthesis of the integratedmarine geochemical system. Since the publication of the first edition, there have beenfurther significant advances in several areas of the subject. Therevised text of this edition accommodates these advances, whilestill retaining the emphasis on identifying key processes operatingwithin a 'unified ocean.' Special attention has been paid tofundamental conceptual changes, such as those related to tracemetal speciation in sea water, hydrothermal activity, carbondioxide and the importance of the oceans in world climate change,the transport of particulate material to the interior of the ocean,primary production and iron limitation, colloids, and thepreservation/destruction of organic matter in marine sediments. Intermediate and advanced students with interests in chemicaloceanography, marine geochemistry, marine biology and environmentalchemistry will welcome this revised comprehensive text. Otherstudents in the broader field of earth sciences will find it to bean essential reference source dealing with the interaction betweenthe atmosphere, the ocean and the solid earth. Incorporates all significant recent advances in thefield. 'Unified system' approach to ocean chemistry. Emphasises geological contexts, e.g. sediment diagenesis.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 1324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inventory of Federal Energy related Environment and Safety Research for written by and published by . This book was released on 1980 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inventory of Federal Energy related Environment and Safety Research for FY 1978 written by and published by . This book was released on 1979 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inventory of Federal Energy related Environment and Safety Research for FY 1978 Project listings and indexes written by and published by . This book was released on 1979 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Inventory of Energy Related Biomedical and Environmental Research for FY 1974 FY 1975 Division of Biomedical Environmental Research Energy Research Development Administration written by Aerospace Corporation. Environment and Energy Conservation Division and published by . This book was released on 1975 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Critical Look at Marine Technology written by Marine Technology Society and published by . This book was released on 1968 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Environmental Behaviour of Polonium written by International Atomic Energy Agency and published by . This book was released on 2018-01-31 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polonium-210 is an alpha emitting radionuclide with no radioactive progeny and produces only very-low-intensity gamma rays at very low abundance. This means doses largely arise from internal exposure. In addition to the relatively high ingestion does coefficient of 210Po, radionuclide transfer in the environment results in high activity concentrations in certain foods. This publication focuses on radionuclide transfers in terrestrial, freshwater and marine environments, and provides information on key transfer processes, concepts and models--back cover.
