Global Atmospheric Chemical Change
Global Atmospheric Chemical Change

Author: C.N. Hewitt

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 478

ISBN-13: 9401537143

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Air pollution has historically been viewed as a local or regional scale problem with attention focused on acute episodes such as the sulphur dioxide and smoke smogs of London in the 1950s and 1960s and the photochemical smogs of southern California first recognized by Haagen Smit in the early 1950s. In recent years, however, it has become apparent that human activity has, and still is, changing the chemical composition of the atmosphere on a global scale. The composition of the atmosphere has seen enormous changes due to natural processes since the formation of the planet. Data obtained from air bubbles trapped in polar ice are beginning to reveal information about these changes over the last tens of thousands of years and geochemical models of the evolution of the Earth give us insights into the changes over much longer periods of time. Perhaps the crucial differences between these natural changes and those now being induced by man are their rel ative rates of change. The magnitude of present day fluxes of some com pounds released as air pollutants is in some cases much larger than those arising naturally. In other cases, for example carbon dioxide, the an thropogenic emission rates are small compared with that of the natural cycle, but the kinetics of the system are such that the steady state concent rations of the compounds in the atmosphere are now being perturbed.

Sea Salt Aerosol Production
Sea Salt Aerosol Production

Author: Ernie R. Lewis

Publisher: American Geophysical Union

Published: 2004-01-09

Total Pages: 423

ISBN-13: 0875904173

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Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 152. Sea salt aerosol (SSA) exerts a major influence over a broad reach of geophysics. It is important to the physics and chemistry of the marine atmosphere and to marine geochemistry and biogeochemistry generally. It affects visibility, remote sensing, atmospheric chemistry, and air quality. Sea salt aerosol particles interact with other atmospheric gaseous and aerosol constituents by acting as sinks for condensable gases and suppressing new particle formation, thus influencing the size distribution of these other aerosols and more broadly influencing the geochemical cycles of substances with which they interact. As the key aerosol constituent over much of Earth's surface at present, and all the more so in pre-industrial times, SSA is central to description of Earth's aerosol burden.

Energy Research Abstracts
Energy Research Abstracts

Author:

Publisher:

Published: 1994

Total Pages: 586

ISBN-13:

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Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

Radionuclide Behaviour in the Natural Environment
Radionuclide Behaviour in the Natural Environment

Author: Christophe Poinssot

Publisher: Elsevier

Published: 2012-09-20

Total Pages: 737

ISBN-13: 0857097199

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Understanding radionuclide behaviour in the natural environment is essential to the sustainable development of the nuclear industry and key to assessing potential environmental risks reliably. Minimising those risks is essential to enhancing public confidence in nuclear technology. Scientific knowledge in this field has developed greatly over the last decade.Radionuclide behaviour in the natural environment provides a comprehensive overview of the key processes and parameters affecting radionuclide mobility and migration.After an introductory chapter, part one explores radionuclide chemistry in the natural environment, including aquatic chemistry and the impact of natural organic matter and microorganisms. Part two discusses the migration and radioecological behavior of radionuclides. Topics include hydrogeology, sorption and colloidal reactions as well as in-situ investigations. Principles of modelling coupled geochemical, transport and radioecological properties are also discussed. Part three covers application issues: assessment of radionuclide behaviour in contaminated sites, taking Chernobyl as an example, estimation of radiological exposure to the population, performance assessment considerations related to deep geological repositories, and remediation concepts for contaminated sites.With its distinguished editors and international team of expert contributors, Radionuclide behaviour in the natural environment is an essential tool for all those interested or involved in nuclear energy, from researchers, designers and industrial operators to environmental scientists. It also provides a comprehensive guide for academics of all levels in this field. - Provides a comprehensive overview of the key processes and parameters affecting radionuclide mobility and migration - Explores radionuclide chemistry in the natural environment - Discusses the migration and radioecological behaviour of radionuclides

Pollutant Transfer and Transport in The Sea
Pollutant Transfer and Transport in The Sea

Author: Gunnar Kullenberg

Publisher: CRC Press

Published: 2018-02-01

Total Pages: 321

ISBN-13: 1351092758

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This book covers those subject areas considered essential for the transfer and transport of pollutants in the marine environment. This publication will stimulate discussions and interdisciplinary research relevent to pollution problems as well as serve as an educational reference book.

Climate and Environmental Change in the Mediterranean Basin – Current Situation and Risks for the Future. First Mediterranean Assessment Report
Climate and Environmental Change in the Mediterranean Basin – Current Situation and Risks for the Future. First Mediterranean Assessment Report

Author: Mediterranean Experts on Climate and environmental Change (MedECC)

Publisher: MedECC

Published: 2020-11-17

Total Pages: 632

ISBN-13: 2957741601

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The First Mediterranean Assessment Report (MAR1) prepared by the independent network of Mediterranean Experts on Climate and environmental Change (MedECC) founded in 2015 was published in November 2020. MAR1 assesses the best available scientific knowledge on climate and environmental change and associated risks in the Mediterranean Basin in order to render it accessible to policymakers, stakeholders and citizens. The report has been written by 190 scientists from 25 countries, all contributing in individual capacity and without financial compensation. The report includes a Summary for Policymakers (SPM), which comprises the key messages of the MAR1. The UNEP/MAP – Barcelona Convention Secretariat, through its Plan Bleu Regional Activity Center, and the Secretariat of the Union for the Mediterranean work in partnership to support MedECC, and to contribute to establish a sound and transparent scientific assessment process.