Download or read book PNEC written by Jacques Clavier and published by Editions Quae. This book was released on 2006 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthèse des activités du programme national pour l'environnement côtier (PNEC) qui développe des recherches fondamentales sur les zones côtières de France métropolitaine et d'outre-mer. Les activités concernent les cycles biogéochimiques, la dynamique des populations, les efflorescences algales toxiques, facteurs hydroclimatiques et variabilité, microorganismes, gouvernance environnementale, etc.
Download or read book Radionuclides A Tool for Oceanography written by P. Geugueniat and published by Routledge. This book was released on 2003-09-02 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of an International Symposium jointly organized by the 'Societe Francaise pour L'Energie Nucleaire' SFEN and 'L'Institut National des Techs. de la Mer' INTECHMER - CNAM at Cherbourg, France, 1-5 June 1987.
Download or read book Technetium in the Environment written by G. Desmet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of technetium (in 1937, by Perrier and Segre), technetium-99 and technetium-99m have become most familiar in the specialised literature, the behaviour of the former being of concern regarding its health impact, the latter having been used intensively in medical tests for many years. The knowledge of the characteristics and behaviour of this element in nature is currently increasing exponentially. It has become clear, however, that there is still a serious shortage of information needed to assess properly its burden and impact on man and his environment. Technetium may indeed be released from nuclear installations or as a waste product from medical applications. It is generally considered to be highly mobile as the anion TcOi, but it is also suspected to be readily reduced in soils and metabolised in living beings into lower oxidation states. The seminar was planned to analyse thoroughly the experimental results obtained up to now and to make recommendations of specific issues requiring further research. This book presents the papers of the different sessions in the order of presentation, and the conclusions drawn by three discussion groups which dealt separately with: problems of sources and distribution of man-made technetium and its radiological consequences; the chemical behaviour of technetium in different ecosystems; biochemical reactions and binding with macromolecules in various life systems. vi Preface The editors, together with the Programme Committee of the Seminar, wish to express their gratitude to the chairmen of the different sessions for their summary of the group discussions.
Download or read book Bulletin de biologie et de m decine experimentale de l URSS written by and published by . This book was released on 1936 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin de biologie et de m decine exp rimentale de l URSS written by and published by . This book was released on 1936 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioindicator Systems for Soil Pollution written by Nico M. van Straalen and published by Springer Science & Business Media. This book was released on 1996-07-31 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: N.M. V AN STRAALEN** and D.A. KRIVOLUTSKY* **Department of Ecology and Ecotoxicology VrUe Universiteit, De Boelelaan 1087, 1081 HV Amsterdam, The Netherlands *Institute of Evolutionary Animal Morphology and Ecology Russian Academy of Sciences, Leninsky Prospekt 33 117071 Moscow, Russian Federation Many industrialized and developing countries are faced with the assessment of potential risks associated with contaminated land. A variety of human activities, including municipal waste disposal, industrial emissions, military testing, and agricultural practices have left their impacts on soils in the form of elevated, and locally high concentrations of toxicants. In several cases sources have not yet been stopped and contamination continues. Decisions on the management of contaminated sites require information on the extent to which toxicants adversely affect the soil ecosystem. For this purpose, it is often insufficient to extrapolate from abiotic sampling. The detection of a toxicant in the abiotic environment usually does not allow a very strong conclusion on the potential hazards.
Download or read book Riparian Landscapes written by George Patrick Malanson and published by Cambridge University Press. This book was released on 1993-05-27 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Riparian Landscapes examines the ecological systems of streamside and floodplain areas from the perspective of landscape ecology. The specific spatial pattern of riparian vegetation is seen as a result of, and a control on, the ecological, geomorphological, and hydrological processes that operate along rivers. Riparian structures are controlled by the spatial dynamics of channels, flooding and soil moisture. These dynamics are part of integrated cascades of water, sediment, nutrients and carbon, to which animal and plant species respond in ways that illuminate community structure and competition. The role of the riparian zone in controlling species distribution and abundance is discussed. Intelligent management of these valuable ecological resources is highlighted. The potential for linking hydrological, geomorphological and ecological simulation models is also explored. This book will be of interest to graduate and professional research workers in environmental science, ecology and physical geography.
Download or read book cotoxicochimie des hydrocarbures written by PICOT André and published by Lavoisier. This book was released on 2013-04-15 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: L’écotoxicochimie, est une nouvelle branche de l’écologie qui se propose d’aborder les atteintes néfastes des produits chimiques sur l’environnement et la santé, à partir des données récentes de la chimie et de la biologie, en s’appuyant sur la toxicochimie, discipline d’interface élaborée en 1979. Les hydrocarbures, famille de base des composés organiques, ont été sélectionnés comme première approche dans Écotoxicochimie – Applications aux hydrocarbures. Ces produits chimiques sont à l’origine de la carbochimie et de la pétrochimie et leur prise en compte a permis de jeter les bases d’une prévention des risques aussi bien toxicochimiques qu’écotoxicochimiques. Risques liés en particulier à toutes les pollutions hydrocarbonées qui devraient être beaucoup mieux encadrées, tant en milieu domestique que dans les milieux de travail ou dans l’environnement. Ainsi ces hydrocarbures sont impliqués dans des pollutions maritimes retentissantes, qui restent malheureusement toujours d’actualité. Si les pollutions engendrées par l’exploitation maritime du pétrole sont également très inquiétantes, un autre sujet apparaît de plus en plus préoccupant avec l’extraction du gaz et des huiles de schiste, dont la technique mise en œuvre faisant appel à la fracturation hydraulique horizontale, est constituée d’un véritable cocktail chimique à faire frémir bien des toxicologues avertis… Sans précédent dans la littérature scientifique, toutes les propriétés toxiques des composés les plus utilisés sont présentées clairement dans cet ouvrage, à partir des références bibliographiques les plus actualisées. En tant que chimistes, spécialistes en toxicochimie, soucieux de comprendre pourquoi certains produits chimiques peuvent être dangereux pour la santé et l’environnement, les auteurs André Picot et Frédéric Montandon associés à plusieurs autres spécialistes, présentent, à la fin de l’ouvrage, une approche préventive, basée sur la sélection de produits de substitution notamment pour les solvants organiques. Trente-quatre fiches résumées dites de ToxicoÉcotoxicoChimie (FRTEC) devraient permettre de faire le bon choix parmi les principaux hydrocarbures couramment utilisés, en particulier comme solvants, et ceci dans de multiples disciplines. Par son approche novatrice, cet ouvrage sera indispensable aux professionnels des industries, des PMI et PME de tous les domaines traitant ou utilisant les hydrocarbures ou leurs dérivés, mais aussi aux responsables de santé publique ou des milieux de travail, aux organisations gouvernementales et non gouvernementales, et aux écologistes de tous horizons… sans oublier les enseignants et étudiants en chimie, en biologie et en écologie désireux de mieux comprendre pourquoi la chimie est à la base de la vie, qu’il nous faut protéger au mieux.
Download or read book Weariness of the Self written by Alain Ehrenberg and published by McGill-Queen's Press - MQUP. This book was released on 2010 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depression, once a subfield of neurosis, has become the most diagnosed mental disorder in the world. Why and how has depression become such a topical illness and what does it tell us about changing ideas of the individual and society? Alain Ehrenberg investigates the history of depression and depressive symptoms across twentieth-century psychiatry, showing that identifying depression is far more difficult than a simple diagnostic distinction between normal and pathological sadness - the one constant in the history of depression is its changing definition. Drawing on the accumulated knowledge of a lifetime devoted to the study of the individual in modern democratic society, Ehrenberg shows that the phenomenon of modern depression is not a construction of the pharmaceutical industry but a pathology arising from inadequacy in a social context where success is attributed to, and expected of, the autonomous individual. In so doing, he provides both a novel and convincing description of the illness that clarifies the intertwining relationship between its diagnostic history and changes in social norms and values. The first book to offer both a global sociological view of contemporary depression and a detailed description of psychiatric reasoning and its transformation - from the invention of electroshock therapy to mass consumption of Prozac - The Weariness of the Self offers a compelling exploration of depression as social fact.
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 Beyond Limits written by David Walters and published by Emerald Group Publishing. This book was released on 2006-01-16 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European chemical industry is the largest in the world but it is by no means the only source of occupational exposure to chemical hazards, because chemical products are both used and are bi-products in many diverse forms of work. This book is a study of strategic approaches to managing the risks of working with hazardous substances in Europe.
Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1992 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Land Sea Interactions written by André Monaco and published by John Wiley & Sons. This book was released on 2014-10-30 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a systemic view of the diversity of pressures and impacts produced by climate change and human actions. Erosion of biodiversity by changing ocean chemistry, the intensification of global change raises the problem of the adaptation of living resources. Land uses induce ecological imbalances leading to asphyxiation true coastal ecosystems. More than a billion tons of solid waste must be assimilated by the marine environment and food webs. Radioactive discharges emitted into the atmosphere or into the aquatic environment, raise the question of their future. Sea and Ocean series offers a transversal approach of the ocean system that leads to governance, sustainable resource management and adaptation of societies.
Download or read book Marine Radioecology Volume 6 written by Jean-Claude Amiard and published by John Wiley & Sons. This book was released on 2023-01-12 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The marine environment, in addition to a not insignificant background of “natural” radioactivity, has continued to receive inputs of radionuclides directly or indirectly through atomic fallout, discharges from the nuclear industry or from nuclear accidents. After their introduction, the fate of these radionuclides is complex with modifications of physicochemical forms, dispersion in marine water masses and adsorption onto sedimentary particles. Marine organisms then bioaccumulate these radionuclides to a greater or lesser extent, dispersing them via their burrowing activities, horizontal and vertical migrations or through food webs. All of these phenomena lead to very variable radioactive contamination, depending on location and the nature of the marine environments concerned, and consequently, to very different doses of irradiation to marine organisms. The harmful effects of ionizing radiation on living marine organisms are felt at varying levels of biological organization from the molecule to the ecosystem, passing through the cell, the organ, the individual and the population. In the end, the radioactive risk for marine organisms can decline according to several situations, which can be normal, programmed or accidental.
Download or read book Modern Trends in Applied Aquatic Ecology written by R.S. Ambasht and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organisms and environment have evolved through modifying each other over millions of years. Humans appeared very late in this evolutionary time scale. With their superior brain attributes, humans emerged as the most dominating influence on the earth. Over the millennia, from simple hunter-food gatherers, humans developed the art of agriculture, domestication of animals, identification of medicinal plants, devising hunting and fishing techniques, house building, and making clothes. All these have been for better adjustment, growth, and survival in otherwise harsh and hostile surroundings and climate cycles of winter and summer, and dry and wet seasons. So humankind started experimenting and acting on ecological lines much before the art of reading, writing, or arithmetic had developed. Application of ecological knowledge led to development of agriculture, animal husbandry, medicines, fisheries, and so on. Modem ecology is a relatively young science and, unfortunately, there are so few books on applied ecology. The purpose of ecology is to discover the principles that govern relationships among plants, animals, microbes, and their total living and nonliving environmental components. Ecology, however, had remained mainly rooted in botany and zoology. It did not permeate hard sciences, engineering, or industrial technologies leading to widespread environmental degradation, pollution, and frequent episodes leading to mass deaths and diseases.
Download or read book Treaties and Other International Acts Series written by and published by . This book was released on 1946 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
