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Books > Earth & environment > The environment > Pollution & threats to the environment > General
Air pollution policy is closely connected with climate change, public health, energy, transport, trade, and agriculture, and generally speaking, the Earth has been pushed to the brink and the damage is becoming increasingly obvious. The transport sector remains a foremost source of air pollutants - a fact that has stimulated the production of biofuels. This book focuses on the biodiesel industry, and proposes a modification of the entire manufacturing chain that would pave the way for further improvements. Oil derived from oilseed plantations/crops is the most commonly used feedstock for the production of biodiesel. At the same time, the UK's Royal Academy of Engineering and 178 scientists in the Netherlands have determined that some biofuels, such as diesel produced from food crops, have led to more emissions than those produced by fossil fuels. Accordingly, this book re-evaluates the full cycle of biodiesel production in order to help find optimal solutions. It confirms that the production and use of fertilizers for the cultivation of crop feedstocks generate considerably more GHG emissions compared to the mitigation achieved by using biodiesel. To address this fertilization challenge, projecting future biofuel development requires a scenario in which producers shift to an organic agriculture approach that includes the use of microalgae. Among advanced biofuels, algae's advantages as a feedstock include the highest conversion of solar energy, and the ability to absorb CO2 and pollutants; as such, it is the better choice for future fuels. With regard to the question of why algae's benefits have not been capitalized on for biofuel production, our analyses indicate that the sole main barrier to realizing algae's biofuel potential is ineffective international and governmental policies, which create difficulties in reconciling the goals of economic development and environmental protection.
In this updated and expanded second edition, new literature has been added on contaminant fate in the soil-subsurface environment. In particular, more data on the behavior of inorganic contaminants and on engineered nanomaterials were included, the latter comprising a group of emerging contaminants that may reach the soil and subsurface zones. New chapters are devoted to a new perspective of contaminant geochemistry, namely irreversible changes in pristine land and subsurface systems following chemical contamination. Two chapters were added on this topic, focusing attention on the impact of chemical contaminants on the matrix and properties of both liquid and solid phases of soil and subsurface domains. Contaminant impacts on irreversible changes occurring in groundwater are discussed and their irreversible changes on the porous medium solid phase are surveyed. In contrast to the geological time scale controlling natural changes of porous media liquid and solid phases, the time scale associated with chemical pollutant induced changes is far shorter and extends over a human lifetime scale ."
Our interest in the microbial biodegradation of xenobiotics has increased many folds in recent years to find out sustainable ways for environmental cleanup. Bioremediation and biotransformation processes harness the naturally occurring ability of microbes to degrade, transform or accumulate a wide range of organic pollutants. Major methodological breakthroughs in recent years through detailed genomic, metagenomic, proteomic, bioinformatic and other high-throughput analyses of environmentally relevant microorganisms have provided us unprecedented insights into key biodegradative pathways and the ability of organisms to adapt to changing environmental conditions. The degradation of a wide spectrum of organic pollutants and wastes discharged into the environment by anthropogenic activities is an emerging need today to promote sustainable development of our society with low environmental impact. Microbial processes play a major role in the removal of recalcitrant compounds taking advantage of the astonishing catabolic versatility of microorganisms to degrade or transform such compounds. New breakthroughs in sequencing, genomics, proteomics, bioinformatics and imaging are generating vital information which opens a new era providing new insights of metabolic and regulatory networks, as well as clues to the evolution of degradation pathways and to the molecular adaptation strategies to changing environmental conditions. Functional genomic and metagenomic approaches are increasing our understanding of the relative importance of different pathways and regulatory networks to carbon flux in particular environments and for particular compounds. New approaches will certainly accelerate the development of bioremediation technologies and biotransformation processes in coming years for natural attenuation of contaminated environments
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
This is the first book to summarize all aspects of allergenic pollen: production, atmospheric distribution, and health impacts, as well as the means of monitoring and forecasting these phenomena. Based on a four-year effort by a large group of leading European scientists, this book highlights the new developments in research on allergenic pollen, including the modelling prospects and effects of climate change. The multidisciplinary team of authors offers insights into the latest technology of detection of pollen and its allergenic properties, forecasting methods, and the influence of allergenic pollen on the population. The comprehensive coverage in this book makes it an indispensible volume for anyone dealing with allergenic pollen worldwide. Readers involved in environmental health, aerobiology, medicine, and plant science will find this book of interest.
This book introduces a new technology for environmental protection, namely plasma cleaning. It brings together technological advances and research on plasma generators and their application in environmental science and engineering, including contaminated soil remediation, waste water degradation, metal recovery from waste solution, sterilization and polluted air remediation. It provides a balanced and comprehensive discussion of the core principles, novel plasma reactors and diagnostics, and state-of-the-art environmental applications of plasma. As such, it represents a valuable reference guide for scientists, engineers and graduate students in the fields of environmental science and plasma physics.
This book combines soil science, earth science, and environmental geochemistry, providing comprehensive background information for specialists interested in chemical-induced changes in the soil-subsurface system. Readers are introduced to the chemistry of contaminants that often disturb the natural soil-subsurface equilibrium as a result of human activity. While the soil-subsurface system has in many cases been affected by human impact, the effects of chemical contaminants on the actual matrix and properties have been largely neglected. The major focus of the book is on changes to the soil-subsurface matrix and properties caused by chemical pollution. By integrating results available in the literature, we observe that chemical pollutants may lead to the irreversible formation of a new soil-subsurface regime characterized by a matrix and properties different than those of the natural regime. In contrast to the geological time scales dictating natural changes to the matrix and properties of the soil-subsurface system, the time scale associated with chemical pollutant-induced changes is far shorter and extends over a "human lifetime scale." The numerous examples presented in the book confirm that chemical contamination should be considered as an additional factor in the formation of a contemporary soil-subsurface regime that is different than that of the pristine system.
This book examines the way that lead enters the biosphere and the subsequent environmental impact. The contributing authors include international experts who provide methods for assessing and characterizing the ecological risk of lead contamination of soil and plants. Information is provided on the consequences for human health as a result of lead pollution. This book reveals that approximately 98% of stable lead in the atmosphere originates from human activities. Lead in Plants and the Environment reports on methods for detecting, measuring, and assessing the concentration of lead in plants. The authors provide a method for the measurement of 210Pb isotopes in plants. This method can be applied extensively in different environmental settings, not only as a way of revealing sources of lead, but also as a way to monitor lead transport in plants and animals that ingest them. The chapters include coverage on the following topics: * Lead bioavailability in the environment and its exposure and effects * Radioanalytical methods for detecting and identifying trace concentrations of lead in the environment * Lead contamination and its dynamics in soil plant systems * Lead pollution monitoring and remediation through terrestrial plants in mesocosm constructed wetlands * A review of phytoremediation of lead This book is a valuable resource to students, academics, researchers, and environmental professionals doing field work on lead contamination throughout the world.
This thorough review is based on observational satellite, airborne and in-situ data, scientific literature and technical reports, as well as the substantial experience of the authors, who hail from several Baltic Sea countries. They pay special attention to national practices, HELCOM and EMSA CleanSeaNet activities in oil pollution monitoring, and show different applications of the Seatrack Web model for oil spill drift prediction and the identification of illegal polluters, as well as for environmental risk assessment. Furthermore, some of the results on satellite monitoring of the Nord Stream gas pipeline construction in the Gulf of Finland are presented. This volume addresses the needs of specialists working in different fields of marine, environmental, and remote sensing sciences. It is a useful handbook on oil pollution for international and governmental agencies, as well as for policy makers who plan and manage oil and gas projects, the construction of ports and terminals, shipping, fishery, recreation, and tourist activities in the Baltic Sea. It also offers graduate and undergraduate students in marine and environmental sciences a valuable resource and reference work on the subject."
This book presents major hydrological, physicochemical and biological processes determining the formation of hydro-physical properties and chemical composition of terrestrial surface water. Generalized hydro-physical, hydro-chemical and hydro-biological parameters affecting surface water quality, in particular in the Ukraine, are provided. Furthermore, a general description of the anthropogenic factors affecting the process of forming natural water's properties is presented. This volume is of interest to ecologists, and scientists, lecturers and students in higher educational institutions investigating patterns of formation of water properties and working on the development of methodologies to model and assess surface water quality, and water quality classifications.
This book examines how the news media in general, and investigative journalism in particular, interprets environmental problems and how those interpretations contribute to the shaping of a discourse of risk that can compete against the omnipresent and hegemonic discourse of modernisation in Chinese society.
This volume discusses the sustainability of Egypt's agriculture and the challenges involved. It provides a comprehensive review and the latest research findings, and covers a variety of topics under the following themes: * Applicability of sustainable agriculture in Egypt * Sustainable agriculture under water scarcity and polluted soil environments * Improved crop productivity using a variety of tried and tested procedures * Biotechnology application for agricultural sustainability and food security * Potentiality of soil-sensing for a more sustainable agricultural environment The volume closes with a summary of the key conclusions and recommendations from all chapters. Together with the companion volume Sustainability of Agricultural Environment in Egypt: Part II, it offers an essential source of information for postgraduate students, researchers, and stakeholders alike.
This book provides an overview to researchers, graduate, and undergraduate students, as well as academicians who are interested in arsenic. It covers human health risks and established cases of human ailments and sheds light on prospective control measures, both biological and physico-chemical. Arsenic (As) is a widely distributed element in the environment having no known useful physiological function in plants or animals. Historically, this metalloid has been known to be used widely as a poison. Effects of arsenic have come to light in the past few decades due to its increasing contamination in several parts of world, with the worst situation being in Bangladesh and West Bengal, India. The worrying issue is the ingestion of arsenic through water and food and associated health risks due to its carcinogenic and neurotoxic nature. The impact of the problem is widespread, and it has led to extensive research on finding both the causes and solutions. These attempts have allowed us to understand the various probable causes of arsenic contamination in the environment, and at the same time, have provided a number of possible solutions. It is reported that more than 200 mineral species contain As. Generally, As binds with iron and sulfur to form arsenopyrite. According to one estimate from the World Health Organization (WHO), contextual levels of As in soil ranges from 1 to 40 mg kg-1. Arsenic toxicity is related to its oxidation state which is present in the medium. As is a protoplastic toxin, due to its consequence on sulphydryl group it interferes in cell enzymes, cell respiration and in mitosis. Exposure of As may occur to humans via several industries, such as refining or smelting of metal ores, microelectronics, wood preservation, battery manufacturing, and also to those who work in power plants that burn arsenic-rich coal.
This booksummarises - amongst other things - what happened to
the people and environment around Chernobyl (and other nuclear
sites) and what measures need to be taken in future in the event of
nuclear accidents etcplus it has a very important and currently
topical use in detailing what to do in the event of a terrorist
dirty bomb attack on a city.
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
This book reviews the sources of the air pollutants responsible for building damage and the mechanisms involved. Studies investigating the relationships between pollution concentration (dose) and the resulting damage (response) are described and the latest research findings for dose-response functions are presented. Trends in pollutant emissions, ambient concentrations and building damage over time are described and future predictions are presented. Methodologies for assessing the extent of the potential problem in a region the stock at risk are presented. Procedures for estimating the economic implications are described and the consequences are discussed in detail, because economic factors are important for reaching policy and management decisions at local, national and international scales. Damage to cultural heritage buildings is an important additional effect which needs to be considered as the standards are revised and the factors which will need to be brought into the assessment are presented.
In the U.S., approximately two-thirds of the coastal rivers and bays are moderately to severely degraded from nutrient pollution. The contributors to this book use long-term data sets to discuss the interactions among biological, ecological, chemical, and physical processes, and discuss what is known about nutrient inputs to the bay ecosystem, the impacts related to nutrient inputs, and how the ecosystem might respond to a sudden reduction in these inputs.
Human exposure to toxic substances that cause cancer, reproductive abnormalities, and other adverse health effects is a topic of increasing interest to scientists, journalists, workers, business executives, advocacy groups, and the public at large. Citizen concern has prompted the government to establish an elaborate regulatory system designed to protect people from chemical exposures. Harnessing Science examines the role of science in toxic chemical regulation at the U.S. Environmental Protection Agency. The book postulates that scientific knowledge and advice from experts outside of government is critical to the competence and credibility of regulations designed to protect public health. This unique volume takes a close look at the contributions of three specific organizations that were designed to improve regulatory science: the Chemical Industry Institute of Toxicology (CIIT), the Science Advisory Board of the EPA, and the Health Effects Institute. Early chapters trace the origins and histories of each of these three organizations. Then regulatory case studies of selected chemical substances (unleaded gasoline, perchloroethylene, formaldehyde, nitrates, and carbon monoxide) are used to assess the contributions of CIIT, SAB, and HEI. The final chapter makes specific recommendations designed to strengthen these organizations. Harnessing Science for Environmental Regulation is essential reading for anyone who is interested in how science influences regulatory decisions about human exposure to toxic chemicals. It will be of special interest to federal and state policy makers, practicing scientists, environmental advocates, risk assessors, corporate managers, and environmental journalists.
This book focuses on innovative treatment technologies for the elimination of emerging contaminants in wastewater and drinking water treatment processes. The book also discusses sources and occurrence of emerging contaminants in municipal and industrial waste, giving an overview of state-of-the-art analytical methods for their identification. Further important aspects covered include the acute and chronic effects and overall impact of emerging contaminants on the environment.
This work reviews the characterization of air quality as it
pertains to specific emission sources and their environmental
effect. Since emissions from multiple sources impact the same
location, a multidisciplinary approach is needed to relate
atmospheric processes to terrestrial vegetation. As global
industrial expansions continue, air quality is no longer governed
by isolated point sources (e.g., a single coal-fired power plant),
but by source clusters or complexes. To address these issues,
atmospheric receptor models have been developed and are continually
being improved. The benefits of any air quality control measures
based on receptor modeling must be verified by assessing changes or
bettering in environmental impacts. Until now, such an approach has
not been well integrated and practiced. This book provides the
needed concepts and methods in conducting the studies to establish
cause-and-effect relationships under ambient conditions, which is
valuable to policy makers both in industrialized and developing
nations.
This book provides a comprehensive overview on mechanochemistry including its history, high-energy ball milling process, equipment used and fundamentals behind the observed scientific phenomena. It also shows that mechanochemistry is highly applicable in the field of waste treatment. The text reviews 1017 studies utilizing mostly high-energy ball milling for the treatment of various types of consumer, technogenic and agricultural waste. The text is divided into chapters based on individual waste types. The book presents an Appendix compiling all studies arranged according to the application that the recycled waste is meant for. In this way, readers from both academia and companies interested either in the treatment of a particular waste, or particular application might easily locate sections of interest.
Chemical additives are used to enhance the properties of many industrial products. Since their release into the environment is a potential risk for man and nature, their fate and behavior have been investigated in the framework of the European Union-funded project RISKCYCLE. The results are presented in two volumes, Global Risk-Based Management of Chemical Additives I: Production, Usage and Environmental Occurrence and Global Risk-Based Management of Chemical Additives II: Risk-Based Assessment and Management Strategies. This book is the second of the two volumes and features two main parts. In the first part, experts in the field discuss different models related to the assessment of the potential risks posed by chemical additives and analyze their benefits and drawbacks. In the second part, specific case studies in which the models have been applied are presented and the reliability of the models is evaluated. This volume is an invaluable source of information for scientists and governmental agencies dealing with the risk assessment of chemicals on a global scale.
Wind erosion occurs in many arid, semiarid and agricultural areas of the world. It is an environmental process in?uenced by geological and climatic variations as well as human activities. In general, wind erosion leads to land degradation in agricultural areas and has a negative impact on air quality. Dustemissiongeneratedbywinderosionisthelargestsourceofaerosolswhich directly or indirectly in?uence the atmospheric radiation balance and hence global climatic variations. Strong wind-erosion events, such as severe dust storms, may threaten human lives and cause substantial economic damage. The physics of wind erosion is complex, as it involves atmospheric, soil and land-surface processes. The research on wind erosion is multidisciplinary, covering meteorology, ?uid dynamics, soil physics, colloidal science, surface soil hydrology, ecology, etc. Several excellent books have already been written about the topic, for instance, by Bagnold (1941, The Physics of Blown Sand and Desert Dunes), Greeley and Iversen (1985, Wind as a Geological P- cess on Earth, Mars, Venus and Titan), Pye (1987, Aeolian Dust and Dust Deposits), Pye and Tsoar (1990, Aeolian Sand and Sand Dunes). However, considerable progress has been made in wind-erosion research in recent years and there is a need to systematically document this progress in a new book.
The goal of the book is to examine scientific advances since 2000 that may have increased understanding and options in three general areas related to hypoxia: Characterization the Cause(s) of Hypoxia. The physical, biological and chemical processes that affect the development, persistence and extent of hypoxia in the northern Gulf of Mexico. Characterization of Nutrient Fate, Transport and Sources. Nutrient loadings, fate, transport and sources in the Mississippi River that impact Gulf Hypoxia. Scientific Basis for Goals and Management Options. The scientific basis for, and recommended revisions to, the goals proposed in the Action Plan; and the scientific basis for the efficacy of recommended management actions to reduce nutrient flux from point and nonpoint sources. In addressing the state of the science, the book focuses on the strengths and limitations of the science in managing the Gulf hypoxia problem, including available data, models and model results and uncertainty. It includes work from the following authors: C. Kling, Iowa State University, Ames, IA, USA; J.L. Meyer, University of Georgia, Athens, GA, USA; J. Sanders, Skidaway Institute of Oceanography, Savannah, GA, USA; H. Stallworth, Environmental Protection Agency, Washington D.C., USA; T. Armitage, Environmental Protection Agency, Washington, D.C., USA; D. Wangsness, U.S. Geological Survey, Atlanta, GA, USA; T.S. Bianchi, Texas A&M University, College Station, TX, USA; A. Blumberg, Stevens Institute of Technology, Hoboken, NJ, USA; W. Boynton, University of Maryland, MD, USA; D.J. Conley, Lund University, Lund, Sweden; W. Crumpton, Iowa State University, Ames, IA, USA; M.B. David, University of Illinois, Urbana, IL, USA; D. Gilbert, Maurice-Lamontagne Institute, Mont-Joli, Quebec, Canada; R.W. Howarth, Cornell University, Ithaca, NY, USA; R. Lowrance, Agricultural Research Service, USDA, Tifton, GA, USA; K. Mankin, Kansas State University, Manhattan, KS, USA; J. Opaluch, University of Rhode Island, Kingston, RI, USA; H. Paerl, University of North Carolina, Chapel Hill, Morehead City, NC, USA; K. Reckhow, Duke University, Durham, NC, USA; A.N. Sharpley, University of Arkansas, Fayetteville, AR, USA; T.W. Simpson, University of Maryland, College Park, MD, USA; C. Snyder, International Plant Nutrition Institute, USA; Conway, AR; D. Wright, College of William and Mary, Gloucester Point, VA, USA.
This book reviews the latest research and developments concerning the biodiversity and biocontamination assessment of aquatic ecosystems in Poland. The authors present expert analyses of the current biological status of Polish surface waters, and examine a broad range of elements related to aquatic ecosystems, including macrophytes, phytoplankton, zooplankton and macroinvertebrates, microorganisms, fish, and selected invasive aquatic species. A set of conservation and restoration practices, and a review of protected sites within the Polish basins and catchment areas, are also provided. This book and the companion volume Polish River Basins and Lakes - Part I: Hydrology and Hydrochemistry offer valuable resources for students, environmental chemists, biologists, geologists, hydrologists and surface waters managers interested in the environmental conditions of Poland's surface waters. |
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