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Books > Earth & environment > The environment > Pollution & threats to the environment > General
This book addresses the threats that hamper the achievement of sustainable soil management: soil erosion by water and wind, soil organic carbon loss, nutrient imbalance, salinization, contamination, acidification, loss of soil biodiversity, surface sealing, compaction and water logging. The specific focus is on preventive and ameliorative strategies for sustainable soil management.
Scientific and technological innovation continues at a rapid pace, but the public is increasingly aware of possible risks and demanding greater involvement in decisions about new technologies. This edited volume brings together leading social scientists who address recent evidence and debates about public engagement and trust in experts. The chapters consider different methods of public consultation and 'deliberation' in relation to a variety of new technologies, including genetically modified foods, mobile telecommunications, nanotechnology, and hydrogen energy.
It has often been said that generals prepare for the next war by re-fighting the last. The Deepwater Horizon (DWH) oil spill was unlike any previous - an underwater well blowout 1,500 meters deep. Much has been learned in the wake of DWH and these lessons should in turn be applied to both similar oil spill scenarios and those arising from "frontier" explorations by the marine oil industry. The next deep oil well blowout may be at 3,000 meters or even deeper. This volume summarizes regional (Gulf of Mexico) and global megatrends in marine oil exploration and production. Research in a number of key areas including the behavior of oil and gas under extreme pressure, impacts on biological resources of the deep sea, and the fate of oil and gas released in spills is synthesized. A number of deep oil spills are simulated with detailed computer models, and the likely effects of the spills and potential mitigation measures used to combat them are compared. Recommended changes in policies governing marine oil exploration and development are proposed, as well as additional research to close critical and emerging knowledge gaps. This volume synthesizes state-of-the-art research in deep oil spill behavior and response. It is thus relevant for government and industry oil spill responders, policy formulators and implementers, and academics and students desiring an in-depth and balanced overview of key issues and uncertainties surrounding the quest for deep oil and potential impacts on the environment.
In the summer of 2003, a workshop was held in Portsmouth, NH, to discuss land measurement techniques for the North American Carbon Program. Over 40 sci- tists representing government agencies, academia and nonprofit research organi- tions located in Canada, the US and Mexico participated. During the course of the workshop a number of topics were discussed, with an emphasis on the following: * The need for an intermediate tier of carbon measurements. This level of study would be more extensive than state-level inventories of the US Forest Service Forest Inventory and Analysis Program, but less detailed than intensive ecos- tem studies sites such as those in Long Term Ecological Research network. This tier would ideally provide a basis to link and scale remote sensing measurements and inventory data, and supply data required to parameterize existing models (see Wofsy and Harriss 2002, Denning et al. 2005). * The design criteria that such a network of sites should meet. The network and s- pling design should be standardized, but flexible enough to be applied across North America. The design also needs to be efficient enough to be implemented without the need for large field crews, yet robust enough to provide useful information. Finally, the spatial scale must permit easy linkage to remotely sensed data. * The key variables that should be measured at each site, and the frequency of measurement.
This book details how the water quality of the Blesbokspruit River in Gauteng, South Africa was socially constructed by stakeholders and key individuals in the context of acid mine drainage (AMD) and its treatment. Social constructionism is used as the framing for this research to explain how water is intrinsically social. Findings presented here show that stakeholders are aware that the changes in the physicality of the Blesbokspruit resulted from human interventions and varied uses of the water over the years. Such knowledge, among factors such as the historical context of mining, current coal mining, flows and volumes of water, technology used and processes followed, information and communication, and vested interests influence social constructions of the water quality. What counts as the truth about water varies depending on the individual's perspective, their purpose, and their individual interests. Further, how one defines water quality influences what treatment processes are preferred in order to improve water quality. The book explains why, for example, a treatment process meant to improve water quality gained a bad reputation by the public because of the South African government's silo approach. The book explains how these social constructions are entrenched in power relations between stakeholders regarding AMD treatment and illustrates how power was used to influence decisions to improve the water quality of the Blesbokspruit. The case presented in this book offers insights and recommendations for policymakers working in water governance, including means to influence social constructions of water quality and ways to clarify roles and responsibilities in pursuit of improved cooperative government.
In recent years, Dutch environmental policy has undergone some pivotal changes, the most significant of which have been decentralization and deregulation, encouraging local communities to develop and deliver policies which are tailor-made to their particular situation. These changes have led to the development of some innovative practical instruments for aiding sustainable environmental spatial policy. This book discusses these new 'methods for environmental externalities' and their significance in the development and delivery of Dutch environmental policies, particularly how they ensure that issues such as health and hygiene are introduced in the early stages of spatial planning processes. This book highlights the most prominent and relevant of these innovative 'methods for environmental externalities' as well as comparing them with some of the classic methods, and analysing strengths and weaknesses. It argues that having such a broad and varied choice of methods is the key to ensuring the impressive and groundbreaking Dutch creativity in environmental management. In conclusion, the book extrapolates current trends in environmental policy, expresses likely and possible developments in 'methods for environmental externalities' and shows how such methods can contribute in our ongoing attempts to develop and deliver liveable, pleasant and sustainable towns and cities.
Microplastic Contamination in Aquatic Environments: An Emerging Matter of Environmental Urgency comprehensively illustrates the traditional and advanced technologies on sampling, identification and quantification of microplastic from different environmental media. Contributors summarize and discuss recent research on microplastic and examine studies on nano-sized plastic particles. Chapters cover a full range of microplastic research, including global distribution, detection, environmental fate, biological effects and political legislation. Users will find the book to be a comprehensive overview of microplastic research that is ideal for research and understanding on the occurrence of microplastic in aquatic environments.
This book outlines the current status of the environment in the Republic of Adygea in Russia. The book assesses the environmental conditions, ecological state, climate and vegetation change, anthropogenic loads to soil, water and atmosphere as well as highlighting the potential of water resources, renewable energy and development of tourism, agriculture and industry in this region. It also presents the mechanisms of legal, ecological and economic regulation and environmental insurance in the Republic of Adygea. This book introduces the Republic of Adygea to readers who are not familiar with the Republic and its beautiful landscapes, history and people. It offers a valuable source of information for a broad readership, from students and scientists interested in environmental sciences, to policymakers and practitioners working in the fields of environmental policy and management.
This volume describes the identification of emerging organic pollutants, mainly from industrial sources, their associated toxicological threats, and the latest green methods and biotechnological solutions to abate harmful impacts on people and the environment. The chapters present reviews on current applied toxicology research, occupational health hazards and green remedial solutions for pollution control in terrestrial and aquatic environments, with the aim of raising public awareness of these issues and providing chemists, toxicologists and environmental scientists with the knowledge to combat organic pollutants through sustainable means. Readers will learn about the multi-dimensional applications of materials and processes which harvest energy out of environmental remediation technologies, as well as the roles of biotechnology and nanotechnology in addressing high pollutant load. Specific attention is paid to technologies that draw energy through wastewater remediation, as this covers the primary means by which organic pollutants are introduced into the environment from industry and other sources. The book will be of use to pollution control boards, industry regulators, and students and researchers in the fields of biotechnology, biomedical science, hydrology and water chemistry.
This book presents study findings involving the Changjiang River estuary and Jiaozhou Bay, China, etc. It takes a large catchment as a combined ecosystem to study nutrients biogeochemistry and environmental aspects of the Changjiang River. Some of the findings have sparked new research directions, including systematic studies of nutrients in the Changjiang River; sources and control mechanisms of nitrogen and phosphorus in the Changjiang River and its estuary; removal and transport of nutrients in the turbidity maximum zone and upwelling area of the Changjiang estuary; long-term changes in nutrients and ecological responses in the Changjiang River estuary and Jiaozhou Bay; and a study on nutrient structure and nutrient composition of phytoplankton, which are topics at the forefront ofinternational marine The studies address different fields, such as biogeochemistry, marine chemistry, ecology, environmental science, oceanography and biology.
This book provides a dynamic simulation model based on input-output table. The model includes an objective function, i.e. maximizing economic and social development and three sub-models, including economic growth model, pollutant emission model and energy balance model. The data of 2012 is selected as the base period data. The haze control policy of Hebei Province is written into the model as an exogenous variable. Reducing the total PM2.5 emissions is an environmental constraint, which is used to eliminate the impact of natural factors on environmental quality. Lingo software is used to simulate this model. By comparing the socio-economic impacts in different scenarios, this book found the most effective policy combination of haze governance. Comprehensive haze governance policy recommendations provide experience for other regions of China and other developing countries. In this book, the dynamic simulation model of haze governance also provides a reference to other environmental policy simulations. This book is divided into five parts. The first part is an introduction. This paper mainly introduces the research background, research status at home and abroad, the purpose and significance of the study, the content and methods of the study, the key scientific problems to be solved and the expected results. In the second part, the current situation and existing problems of economic, social, energy and environment development in the study area are analyzed in detail. In the third part, a comprehensive evaluation model of dynamic optimization of haze control policy is constructed. The fourth part carries on the simulation experiment, and carries on the analysis to the experimental result. The fifth part puts forward the policy suggestions to realize the economic, social, energy and environmental development of Hebei Province. In this book, we have some understandings about haze governance. From the perspective of policy effect, the policy effects of subsidy for soil and water conservation, subsidy for development and utilization of clean energy, subsidy for new energy vehicles, motor vehicle restriction and subsidy for introduction of PM2.5 treatment technology are decreasing. Comprehensive policy can better achieve the goal of sustainable development of economy, energy and environment than single policy, and the effect of "source governance" policy is better than that of "end governance" policy.
This book explores human exposure and consumer risk assessment in response to issues surrounding pesticide residues in food and drinking water. All the three main areas of consumer risk assessment including human toxicology, pesticide residue chemistry and dietary consumption are brought together and discussed.Includes the broader picture - the environmental fate of pesticidesTakes an international approach with contributors from the European Union, USA and AustraliaHighlights the increasing concerns over food safety and the risks to humans
This book focuses on different aspects of microplastic pollution, offering authors and readers the opportunity to share their knowledge, identify issues and propose solutions and actions to face this environmental threat. Although plastic pollution is a well-known global problem, the recent discovery of microplastics and nanoplastics in seas and oceans represents a very alarming new environmental challenge. The book offers comprehensive insights into the origins of the problem, its impact on marine environments, particularly the Mediterranean Sea and coasts, and the current research trends aimed at finding technical solutions to mitigate the phenomenon. It is primarily intended for scientists and decision makers from industry, international, national and local institutions and NGOs
Over the last decade, synthetic musk fragrances, which after use enter the environment by different pathways, have been described as a new group of bioaccumulative and persistent xenobiotics. This book gives the first comprehensive and up-to-date overview of the environmental pollution caused by several different synthetic musks. Written by a wide range of international experts in the field, the book summarizes and critically discusses the musk levels in the different compartments of the aquatic environment, in indoor/ambient air, house dust, and in addition, in human samples. The aspects of biotransformation and metabolism of several synthetic musks in the environment and in animals/humans are particularly emphasized. Finally, a provisional toxicological assessment and risk evaluation is given. Many, as yet unpublished, data complete this survey. The volume also points out the gaps, the still missing toxicological and environmental data, and in general, the need for further research work in this field.
This book comprehensively reviews the key topics in the area of nanocomposites and hybrid materials used for waste water treatment and purification. It covers materials chemistry, various synthesis approaches and properties of these nanomaterials for the different water purification techniques. It provides new direction to the readers to better understand the chemistry behind these materials and the methods to improve their properties. This book will be a very valuable reference source for graduates and postgraduates, engineers, research scholars (primarily in the field of material science, water, nanoscience and nanotechnology), material scientists, researchers in the water-related area, scientists working in water treatment plans and pollution mitigation industries.
This edited volume sheds new light on the impact of rapid Land Use/Cover Changes (LU/CC) on greenhouse gases (GHG's) and aerosol emissions in South and Southeast Asia. Several countries in South/Southeast Asia have the highest population growth rates in the world, which is the main cause for LU/CC. Conversion of dense forests to agricultural areas and then to residential and urban areas is most commonly observed in South/Southeast Asian countries with a significant release of GHG's and aerosols. The book showcases several case studies on the use of remote sensing and geospatial technologies to quantify biomass burning and air pollution impacts, aerosol pollution, LU/CC, and impacts on ecosystem services. The book also includes articles on regional initiatives in research, capacity building, and training. The authors of this book are international experts in the field, and their contributions highlight significant drivers and impacts of air pollution in South/Southeast Asia. Readers will discover the latest tools and techniques, in particular, the use of satellite remote sensing and geospatial technologies for quantifying GHG's, aerosols and pollution episodes in this region.
Although there are some biological processes that are supported by UV radiation, most organisms are stressed by it in various ways, e.g. through DNA damage.Top international experts present an integrated overview of UV radiation and its effects on terrestrial, freshwater and marine Arctic biota. Increased stratospheric ozone depletion and the corresponding increase in ground levels of UV radiation as well as ambient, "natural" UV radiation as a key ecological factor in the Arctic spring and summer are discussed in detail. Additionally, basic information on Arctic ecosystems is given. The volume provides not only an excellent account of present-day knowledge of the subject, but also describes the state of the art on which future research can be built.
This volume addresses hospital effluents in terms of their composition and the management and treatment strategies currently (being) adopted around the globe. In this context, one major focus is on pharmaceutical compounds: their observed concentration range, ecotoxicological effects, and the removal efficiency achieved by the different technologies. Another focus is on management strategies (dedicated hospital wastewater treatment, or a combined approach also involving urban wastewater) and currently adopted treatments to reduce the released pollutant load. Innovative and promising technologies under investigation at the lab and pilot scale are presented. A discussion of remaining knowledge gaps and future research requirements rounds out the coverage. The respective chapters, written by experts in the different fields, provide useful information for a broad audience: scientists involved in the management and treatment of hospital effluents and wastewater containing micropollutants, administrators and decision-makers, legislators involved in the authorization and management of healthcare structure effluents, and environmental engineers involved in the design of wastewater treatment plants, as well as newcomers and students interested in these issues.
This book integrates 30 years of mercury research in the Florida Everglades to inform scientists and policy makers. The Everglades is an iconic ecosystem by virtue of its expanse; diversity of biota; and multiple international designations. Despite this, the Everglades has been subjected to multiple threats including: habitat loss, hydrologic alterations, invasive species and altered water quality. Less well recognized as a threat to Everglades human use and wildlife populations is the toxic metal, mercury. The first half of Volume II focuses on biogeochemistry and factors unique to the Everglades that make it extraordinarily susceptible to mercury methylation following its deposition: warm subtropical climate, shallow depth, high levels of dissolved organic matter, sulfate contamination, nutrient enrichment and sediment redox conditions (for review of atmospheric mercury deposition significance, see Vol. I). The second half of Volume II answers the "so what" question - why biomagnification of the methylmercury produced in the Everglades is a threat to the health of top predators including humans. The results of the synthesis presented in Volume II suggest that the mercury problem in the Florida Everglades is one of the worst in the world due to its areal extent and the degree of risk to ecological receptors and humans.
Commensal rodents pose health risks and cause substantial damage to property and food supplies. Rats have also invaded islands and pose a serious threat to native wildlife, particularly raptors and seabirds. Estimates of total damage from introduced rats range into the billions of dollars in developed countries. This book aims to provide a state-of-the-art overview of the scientific advancements in the assessment of exposure, effects and risks that currently used rodenticides may pose to non-target organisms in the environment, along with practical guidance for characterization of hazards. This will be discussed in relation to their efficacy, and the societal needs for rodent control, and discussion of risk mitigation and development of alternatives. The flow in the book is planned as: a. introduction and setting the scene b. problem description (risks and effects on non-targets and secondary poisoning, development of resistance) c. ; alternatives, regulation and risk mitigation d. conclusions and recommendations
This book presents innovative research on soil nitrogen cycling and nitrate leaching with a view to improving soil management and fertiliser nitrogen use efficiency and reducing nitrogen leaching losses. In this regard, nitrogen-15 (15N)-labelled fertiliser was used as a biochemical and physical stable isotope tracer in laboratory and field experiments. The major outcome of the research was the development, validation and application of a new compound-specific amino acid 15N stable isotope probing method for assessing the assimilation of fertiliser nitrogen by soil microbial biomass. The novelty of the method lies in its tracing of incorporated nitrogen into newly biosynthesised microbial protein in time-course experiments using gas chromatography-combustion-isotope ratio mass spectrometry. The approach provides previously unattainable insights into the microbial processing of different nitrogen fertilisers in different soils. Further, it identifies the mechanistic link between molecular-scale processes and observations of field-scale fertiliser nitrogen immobilisation studies. The method and the results presented here will have far-reaching implications for the development of enhanced recommendations concerning farm-based soil management practices for increasing soil productivity and reducing nitrogen losses, which is essential to minimising environmental impacts.
This unique volume focuses on Egypt's conventional water resources and the main water consumer: Egypt's agriculture. It provides an up-to-date overview and the latest research findings, and covers the following main topics: * History of irrigation and irrigation projects * Key features of agriculture, the administrative and legal framework in Egypt * Land resources for agriculture development * Food insecurity due to water shortages and climate change; resulting challenges and opportunities * Assessment of water resources for irrigation and drinking purposes * Impacts of upstream dams, such as the GERD and Tekeze Dam, on Egypt's water resources and crop yield * Sustainable use of water resources and the future of mega irrigation projects * Quantity and quality of water in Egypt's water resources bank This book and the companion volume Unconventional Water Resources and Agriculture in Egypt offer invaluable reference guides for postgraduates, researchers, professionals, environmental managers and policymakers interested in water resources and their management worldwide.
The introduction of contaminants, due to rapid urbanisation and anthropogenic activities, into the environment causes unsteadiness, distress to the physico-chemical systems including living organisms, which possibly is threatening the dynamics of nature as well as the soil biology by producing certain xenobiotics. Hence, there is an immediate global demand for the diminution of such contaminants and xenobiotics which can otherwise adversely affect the living organisms. Some toxic xenobiotics include synthetic organochlorides such as polycyclic aromatic hydrocarbons (PAHs), and some fractions of crude oil and coal. The advancements in microbiology and biotechnology has lead to the launch of microbial biotechnology as a separate area of research and contributed dramatically to the development of the areas like agriculture, environment, biopharmaceutics, fermented foods, etc. The evolution of new metabolic pathways from natural metabolic cycles has enabled the microorganisms to degrade almost all different complex and resistant xenobiotics found on Earth. Hence, microbes stand an imperative, efficient, green and economical alternative to conventional treatment technologies. This book comprises chapters dealing with various bioremediation strategies with the help of different groups of microorganisms along with detailed graphical/ diagrammatical representations. It also focuses on the use of microbial biotechnology and highlights the recent developments in microbial biotechnology in the area of agriculture and environment. Furthermore, it contains a detailed comprehensive account for the microbial treatment technologies from unsustainable to sustainable which includes chapters prepared by professionals, several researchers, scientists, graduate students and postdoctoral fellows across the world with expertise in environmental microbiology, biotechnology, bioremediation, and environmental engineering. The research presented also highlights some of the significantly important microbial species involved in remediation, the physiology, biochemistry and the mechanisms of remediation by various microbes, and suggestions for future improvement of bioremediation technology. This book would serve as a quick reference book for graduate and postgraduate students pursuing their study in any branch of life sciences, microbiology, health sciences and environmental biotechnology as well as researchers and scientists working in laboratories and industries involved in research related to microbiology, environmental biotechnology and allied researches.
This text details the plant-assisted remediation method, "phytoremediation", which involves the interaction of plant roots and associated rhizospheric microorganisms for the remediation of soil contaminated with high levels of metals, pesticides, solvents, radionuclides, explosives, crude oil, organic compounds and various other contaminants. Many chapters highlight and compare the efficiency and economic advantages of phytoremediation to currently practiced soil and water treatment practices. Volume 5 of Phytoremediation: Management of Environmental Contaminants provides the capstone of the series. Taken together, the five volumes provide a broad-based global synopsis of the current applications of phytoremediation using plants and the microbial communities associated with their roots to decontaminate terrestrial and aquatic ecosystems.
At the UN Climate Negotiations in Copenhagen, 117 heads of state concluded that low-carbon development is necessary in order to combat climate change. However, they also understood that transition to a low-carbon economy requires the implementation of a portfolio of policies and programs - a challenging endeavour for any nation. This book addresses the need for information about factors impacting climate policy implementation, using as a case study one effort that is at the heart of attempts to create a low-carbon future: the European Emission Trading Scheme. It explores problems surrounding the implementation of the ETS, including the role of vested interests, the impact of design details and opportunities to attract long-term investments. It also shows how international climate cooperation can be designed to support the domestic implementation of low-carbon policies. This timely analysis of carbon pricing contains important lessons for all those concerned with the development of post-Copenhagen climate policy. |
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