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Author:
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 372
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Book Description
Author:
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 372
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Book Description
Author:
Publisher:
ISBN:
Category : Aquatic organisms
Languages : en
Pages : 364
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Book Description
Author: Karen Ann Kidd
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 290
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Book Description
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 884
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Book Description
Author:
Publisher:
ISBN:
Category : Aquatic organisms
Languages : en
Pages : 150
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Book Description
Author: Sylvia S. Talmage
Publisher: CRC Press
ISBN: 0429610629
Category : Political Science
Languages : en
Pages : 387
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Book Description
The book summarizes and reviews the environmental and human safety of two classes of nonionic surfactants-alcohol ethoxylates (AE) and alkylphenol ethoxylates (APE). This unique resource contains critical data from published sources as well as from unpublished studies submitted by Soap and Detergent Association member companies. It reviews information on product chemistry and analysis, biodegradation, environmental levels (including fate and distribution), aquatic toxicity, and human safety. Recently developed analytical techniques for the extraction, separation, detection, and measurement of nonionic surfactants and their metabolites in environmental samples are described. Results of biodegradation studies performed with a variety of test systems are tabulated, as are results of field studies at wastewater treatment plants. Reported comparisons of environmental levels with results of acute and chronic aquatic toxicity tests are provided. The information on the toxicity and irritation potential of AE and APE surfactants includes data from in vitro, mammalian, and human studies.
Author: K.L. Kaiser
Publisher: Springer Science & Business Media
ISBN: 9400964153
Category : Medical
Languages : en
Pages : 407
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Book Description
Ever since Rachel Carson's Silent Spring, we have generally become aware of environmental contaminants and their effects on the ecosystem. The findin~ of PCB's in fish by Soren Jensen in Sweden, the recognition of mirex as contaminant in fish from Lake Ontario, and the discoveries of contaminant laden leachates from dumpsites such as the Love Canal have become milestones in the search for and charac terization of contaminants in our environment. At this time, the problem no longer is so much the identifi cation of contaminants and their sources. Rather, we are now faced with solving questions on the fates and effects of such compounds. This includes the search for mechanisms to deal effectively with the large number of chemicals already found in water, air and biota. One of such time and cost saving scientific avenues is the field of quantitative structure-activity correlations for the prediction of the environmental behavior and effects of compounds.
Author: Roumen Arsov
Publisher: Springer Science & Business Media
ISBN: 9401000573
Category : Technology & Engineering
Languages : en
Pages : 362
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Book Description
Urban population growth dramatically alters material and energy fluxes in the affected areas, with concomitant changes in landscape, altered fluxes of water, sediment, chemicals and pathogens and increased releases of waste heat. These changes then impact on urban ecosystems, including water resources and result in their degradation. Such circumstances make the provision of water services to urban populations even more challenging. Changing weather patterns, rising temperature and large variations in precipitation contr- ute to increased damages, caused by weather related disasters, including floods. Ones of the major contributors to increasing flood peaks are land use changes and particularl- urban development. Consequently, there is a need to look for low environmental impact land development and to manage runoff in urban areas by storm water management. Much progress in the management of urban waters has been achieved in the most - vanced jurisdictions, but much more remains to be done. In this respect the EC Water Framework Directive can provide some guidance. Urban water management issues are particularly important in the countries in transition in Central and Eastern Europe. During the last decade political, economical and social changes in the countries under transition have influenced almost every element of the public sector, including water services. There is an urgent need for exchange of information among various countries on this issue and for identification of best approaches to achieving this transition.
Author: Duca, Gheorghe
Publisher: IGI Global
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 461
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Book Description
Environmental and Technological Aspects of Redox Processes is a comprehensive guide to understanding the natural process of electrochemical oxidation/reduction and adsorption action in water treatment technology. The book examines the complexities of redox signaling at a cellular level and how it influences a wide range of biological processes, such as immune function, tissue repair, and cell development. With contributions from leading experts in the field, this book provides valuable insights and strategies for preventing the negative effects caused by oxidants, such as damage to living cells, DNA, proteins, and lipids. Through extensive research on electronic structure, thermodynamics, kinetics, and catalysis of the redox reactions, this book is poised to contribute to an extensive body of new knowledge regarding the essence of the redox processes, the revelation and theoretical justification of key mechanisms, and the discovery of new aspects of methods to control the redox reactions. This will have a major impact on the quality of life, human health, food quality, as well as the state of the environment, especially for the sources of clean water, which continue to deplete at a rapid rate. This book is a valuable resource for professionals and researchers in materials science, materials engineering, chemical engineering, ecological chemistry, and water professionals, as well as individuals working in related disciplines such as environment, chemistry, toxicology, administrative sciences and management, education, sociology, and subjects related to public policies and decision support. Moreover, the book provides insights and support to executives concerned with the management of expertise, knowledge, information, and policy development in different types of science and educational communities.
Author: Kenneth Lee
Publisher: Springer Science & Business Media
ISBN: 1461400465
Category : Technology & Engineering
Languages : en
Pages : 601
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Book Description
A state-of-the-art review of scientific knowledge on the environmental risk of ocean discharge of produced water and advances in mitigation technologies. In offshore oil and gas operations, produced water (the water produced with oil or gas from a well) accounts for the largest waste stream (in terms of volume discharged). Its discharge is continuous during oil and gas production and typically increases in volume over the lifetime of an offshore production platform. Produced water discharge as waste into the ocean has become an environmental concern because of its potential contaminant content. Environmental risk assessments of ocean discharge of produced water have yielded different results. For example, several laboratory and field studies have shown that significant acute toxic effects cannot be detected beyond the "point of discharge" due to rapid dilution in the receiving waters. However, there is some preliminary evidence of chronic sub-lethal impacts in biota associated with the discharge of produced water from oil and gas fields within the North Sea. As the composition and concentration of potential produced water contaminants may vary from one geologic formation to another, this conference also highlights the results of recent studies in Atlantic Canada.
