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Author : Donald Brockway
Publisher :
ISBN 13 :
Total Pages : 171 pages
Book Rating : 4.:/5 (829 download)
Download or read book Microcosms as Test Systems for the Ecological Effects of Toxic Substances written by Donald Brockway and published by . This book was released on 1981 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U. S. Environmental Protection Agency
Publisher : BiblioGov
ISBN 13 : 9781289196134
Total Pages : 192 pages
Book Rating : 4.1/5 (961 download)
Download or read book Microcosms As Test Systems for the Ecological Effects of Toxic Substances written by U. S. Environmental Protection Agency and published by BiblioGov. This book was released on 2013-07 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (EPA) was introduced on December 2, 1970 by President Richard Nixon. The agency is charged with protecting human health and the environment, by writing and enforcing regulations based on laws passed by Congress. The EPA's struggle to protect health and the environment is seen through each of its official publications. These publications outline new policies, detail problems with enforcing laws, document the need for new legislation, and describe new tactics to use to solve these issues. This collection of publications ranges from historic documents to reports released in the new millennium, and features works like: Bicycle for a Better Environment, Health Effects of Increasing Sulfur Oxides Emissions Draft, and Women and Environmental Health.
Download or read book Microcosms as Test Systems for the Ecological Effects of Toxic Substances written by and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Terrestrial Soil-core Microcosm Test Protocol. A Method for Measuring the Potential Ecological Effects, Fate, and Transport of Chemicals in Terrestrial Ecosystems written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to protect the environment properly and have a realistic appraisal of how a chemical will act in the environment, tests of ecological effects and chemical fate must be performed on complex assemblages of biotic and abiotic components (i.e., microcosms) as well as single species. This protocol is one which could be added to a series of tests recently developed as guidelines for Section 4 of the Toxic Substances Control Act (P.L. 94-469; U.S.C., Section 2601-2629). The terrestrial soil-core microcosm is designed to supply site-specific and possibly regional information on the probable chemical fate and ecological effects resulting from release of a chemical substance to a terrestrial ecosystem. The EPA will use the data resulting from this test system to compare the potential hazards of a chemical with others that have been previously evaluated.
Author : National Research Council (U.S.). Committee to Review Methods for Ecotoxicology
Publisher : National Academies
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (43 download)
Download or read book Testing for Effects of Chemicals on Ecosystems written by National Research Council (U.S.). Committee to Review Methods for Ecotoxicology and published by National Academies. This book was released on 1981 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J. Beyers
Publisher : Springer Science & Business Media
ISBN 13 : 1461393442
Total Pages : 566 pages
Book Rating : 4.4/5 (613 download)
Download or read book Ecological Microcosms written by Robert J. Beyers and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Microcosms is a seminal work which reviews the expanding field of enclosed ecosystem research, and relates the results and models of microcosm studies to general concepts in ecology. Microcosms are miniaturized pieces of our biosphere, ranging from streams and lakes to terraria, agroecosystems, and waste systems. The study of these simplified ecosystems is providing provocative insights into ecological principles as well as issues of environmental management and global stability. The authors have used the well-known thermodynamic approach of H.T. Odum and numerous computer simulations. The book also includes an evaluation of alternative mesocosm approaches for the support of humans in space, as well as appendices to aid in the teaching of environmental concepts using student-created microcosms. Ecological Microcosms will be of interest to ecologists, environmental engineers, policy makers and environmental managers, space scientists, and educators. Robert J. Beyers is a Professor of Biology at the University of South Alabama. Howard T. Odum is Graduate Research Professor of Environmental Engineering Sciences at the University of Florida, and was awarded, with Eugene Odum, the 1987 Crafoord Prize in the Biosciences.
Author : James W. Gillett
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 ( download)
Download or read book Terrestrial Microcosms written by James W. Gillett and published by . This book was released on 1979 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Cairns, Jr.
Publisher : CRC Press
ISBN 13 : 9780873715997
Total Pages : 244 pages
Book Rating : 4.7/5 (159 download)
Download or read book Ecological Toxicity Testing written by John Cairns, Jr. and published by CRC Press. This book was released on 1994-12-27 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Toxicity Testing provides a critical comparison of toxicity tests at different levels of biological organization from cells to landscapes. While ecological toxicity tests can be designed at any of the many levels of complexity and on spatial scales ranging from square millimeters to square kilometers, the uses to which this information can be put often differs with scale. In the past decade, tests at all levels have been refined and subjected to critical evaluations of their predictive accuracy. This text/reference includes evaluations of toxicity test systems at various scales and complexities by expert practitioners. It also offers broader analyses of the effects of scale on endpoint selection, test design and analyses, and chemical sensitivity.
Author : Francisco Sánchez-Bayo, Paul J. van den Brink, Reinier M. Mann
Publisher : Francisco Sanchez-Bayo
ISBN 13 : 1608051218
Total Pages : 288 pages
Book Rating : 4.6/5 (8 download)
Download or read book Ecological Impacts of Toxic Chemicals written by Francisco Sánchez-Bayo, Paul J. van den Brink, Reinier M. Mann and published by Francisco Sanchez-Bayo. This book was released on 2011-09-09 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Impacts of Toxic Chemicals presents a comprehensive, yet readable account of the known disturbances caused by all kinds of toxic chemicals on both aquatic and terrestrial ecosystems. Topics cover the sources of toxicants, their fate and distribution through the planet, their impacts on specific ecosystems, and their remediation by natural systems. Each chapter is written by well-known specialists in those areas, for the general public, students, and even scientists from outside this field. The book intends to raise awareness of the dangers of chemical pollution in a world dominated by industry and globalization of resources. Because the problems are widespread and far reaching, it is hoped that confronting the facts may prompt better management practices at industrial, agricultural and all levels of management, from local to governmental, so as to reduce the negative impacts of chemical contaminants on our planet.
Author : James M. Witt
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.3/5 (243 download)
Download or read book Terrestrial Microcosms and Environmental Chemistry written by James M. Witt and published by . This book was released on 1977 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yuhei Inamori
Publisher : Springer
ISBN 13 : 9811367981
Total Pages : 237 pages
Book Rating : 4.8/5 (113 download)
Download or read book Microcosm Manual for Environmental Impact Risk Assessment written by Yuhei Inamori and published by Springer. This book was released on 2019-06-22 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive guide to microcosms (N-systems) in multiple-species testing and aquatic ecosystem risk assessment. It provides standardized methods for creating the microbial ecosystem, and proposes a standardized microcosm system for environmental impact risk assessments. The book will be of interest to students and educators, researchers, government authorities, developers and manufacturers engaged in ecosystem preservation, water quality management personnel at sewage treatment or industrial effluent treatment facilities, and anyone involved in education, management and analysis evaluation for environmental standards and waste water quality standards.
Author : B. S. Ausmus
Publisher :
ISBN 13 :
Total Pages : 379 pages
Book Rating : 4.:/5 (127 download)
Download or read book Microcosms as Potential Screening Tools for Evaluating Transport and Effects of Effects of Toxic Substances written by B. S. Ausmus and published by . This book was released on 1980 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (318 download)
Download or read book Workshop on Aquatic Microcosms for Ecological Assessment of Pesticides written by and published by . This book was released on 1992 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Barney W. Cornaby
Publisher :
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.3/5 (91 download)
Download or read book Management of Toxic Substances in Our Ecosystems written by Barney W. Cornaby and published by . This book was released on 1981 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Tarradellas
Publisher : CRC Press
ISBN 13 : 9781566701341
Total Pages : 406 pages
Book Rating : 4.7/5 (13 download)
Download or read book Soil Ecotoxicology written by Joseph Tarradellas and published by CRC Press. This book was released on 1996-12-23 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils are receptacles for a wide range of hazardous chemicals generated by human activities. Whether or not this contamination is deliberate, accurate toxicity assessments are important for health and economic reasons. Soil Ecotoxicology discusses the sources, fate, and transport of hazardous chemicals in soils. The fate (biodegradation and modeling) and the potential impacts of pesticides on soil ecosystems are emphasized, and methodologies for performing toxicity assessments are provided.
Author :
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.E/5 ( download)
Download or read book EPA 540/9 written by and published by . This book was released on 1975-02 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Terrestrial Microcosms for Assessing the Fate and Effects of Genetically Engineered Microorganisms on Ecological Processes written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project evaluates and modifies the existing US Environmental Protection Agency's Office of Pesticides and Toxic Substances (EPA/OPTS) terrestrial microcosm test system and test protocols such that they can be used to determine the environmental fate and ecological hazards of genetically engineered microorganisms (GEMs). The intact soil-core microcosm represents terrestrial ecosystems, and when coupled with appropriate test protocols, such microcosms may be appropriate to define and limit risks associated with the intentional release of GEMs. The terrestrial microcosm test system was used to investigate the survival and transport of two model GEMs (Azospirillum lipoferum and Pseudomonas sp. Tn5 mutants) to various trophic levels and niches and through intact soil cores. Subsequent effects on nutrient cycling and displacement of indigenous microorganisms were evaluated. The model organisms were a diazotrophic root-colonizing bacterium (A. lipoferum) and a wheat root growth-inhibiting rhizobacterium (Pseudomonas sp.). The transposable element Tn5 was used as a genetic marker for both microorganisms in two separate experiments. The organisms were subjected to transposon mutagenesis using a broad host-range-mobilizable suicide plasmid. The transposon Tn5 conferred levels of kanamycin resistance up to 500 .mu.g/ml (Pseudomonas sp.), which allowed for selection of the bacteria from environmental samples. The presence of Tn5 DNA in the genome of the model GEMs also allowed the use of Tn5 gene probes to confirm and enumerate the microorganisms in different samples from the microcosms. Two types of root growth-inhibiting Pseudomonas sp. Tn5 mutants were obtained and used in microcosm studies: those that lacked the ability to inhibit either wheat root growth or the growth of other microorganisms in vitro (tox/sup /minus//) and those which retained these properties (tox/sup +/). 53 refs., 7 figs., 6 tabs.
