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Books > Earth & environment > The environment > Pollution & threats to the environment > General

Habitat, Population Dynamics, and Metal Levels in Colonial Waterbirds - A Food Chain Approach (Paperback): Joanna Burger,... Habitat, Population Dynamics, and Metal Levels in Colonial Waterbirds - A Food Chain Approach (Paperback)
Joanna Burger, Michael Gochfeld
R1,600 Discovery Miles 16 000 Ships in 10 - 15 working days

This book is a result of the authors' more than 40 years of study on the behavior, populations, and heavy metals in the colonial waterbirds nesting in Barnegat Bay and the nearby estuaries and bays in the Northeastern United States. From Boston Harbor to the Chesapeake, based on longitudinal studies of colonial waterbirds, it provides a clear picture of the toxic trends and effects of heavy metals in the aquatic environment. The authors take a food web, ecosystem approach to contaminants, using population dynamics, habitat selection, and inputs to the bay to examine metal levels. They also look at the human dimension, discuss what metals in birds tell us about human exposure, and describe stakeholder involvement in these issues. The book covers numbers and dynamics, colony sites and locations, and prey contaminant levels, and compares them to other comparable coastal estuaries. It uses colonial waterbirds as the focal point for an ecosystem approach to metals that begins with prey fish and goes through invertebrates to humans. Additionally, it provides information based on long-term integrative studies the authors have done on metal levels and bird species and compares the findings with data from the Harbor Estuaries Program, other Northeast bays, the Great Lakes, and the Wadden Sea.

Handbook of Pollution Prevention Practices (Paperback): Nicholas P. Cheremisinoff Handbook of Pollution Prevention Practices (Paperback)
Nicholas P. Cheremisinoff
R1,609 Discovery Miles 16 090 Ships in 10 - 15 working days

This text provides approaches and methodologies for implementing pollution prevention (P2) and waste minimization programmes to reduce manufacturing operational costs significantly. It focuses on reducing manufacturing and environmental compliance costs by instituting feedstock substitution, improved operational schemes, recycling and by-product recovery, waste minimization, and energy efficiency policies, and offers project cost accounting tools that assist in evaluating money-saving P2 options.

A Systems Approach to the Environmental Analysis of Pollution Minimization (Paperback): Sven E. Jorgensen A Systems Approach to the Environmental Analysis of Pollution Minimization (Paperback)
Sven E. Jorgensen
R1,584 Discovery Miles 15 840 Ships in 10 - 15 working days

The environmental analysis of pollution problems always involves the use of mass and energy balances to quantify the extent of pollution and its sources. This same form of analysis can be applied to ecosystems, production systems, a whole country or a region. A Systems Approach to the Environmental Analysis of Pollution Minimization identifies and describes the common factors shared by these systems. The book is organized in twelve chapters and progresses from general concepts to specific assessment methods. Chapter one is a general introduction to environmental management principles. Chapter two discusses conservation principles and their applications to environmental health. Chapters three and four explore ecosystem health, properties and analysis. Chapters five through eleven present different methods of analysis including Green Accounting, Clean Technology, Life Cycle Analysis, and Risk Assessment. Editor Sven Jorgensen closes the book with a sweeping summary. Jorgensen is a internationally published authority on the use and analysis of ecosystem models. His new book is a comprehensive guide for both students and professionals. A Systems Approach to the Environmental Analysis of Pollution Minimization is an invaluable contribution. Features

Transnational Environmental Policy - Reconstructing Ozone (Paperback): Reiner Grundmann Transnational Environmental Policy - Reconstructing Ozone (Paperback)
Reiner Grundmann
R1,387 Discovery Miles 13 870 Ships in 10 - 15 working days

Transnational Environmental Policy analyses a surprising success story in the field of international environmental policy making: the threat to the ozone layer posed by industrial chemicals, and how it has been averted. The book also raises the more general question about the problem-solving capacities of industrialised countries and the world society as a whole. Reiner Grundmann investigates the regulations which have been put in place at an international level, and how the process evolved over twenty years in the US and Germany.

Alternative Energy Resources - The Way to a Sustainable Modern Society (Hardcover, 1st ed. 2021): Pankaj Pathak, Rajiv Ranjan... Alternative Energy Resources - The Way to a Sustainable Modern Society (Hardcover, 1st ed. 2021)
Pankaj Pathak, Rajiv Ranjan Srivastava
R8,192 Discovery Miles 81 920 Ships in 10 - 15 working days

This book reviews alternative and renewable energy resources in order to pave the way for a more sustainable production in the future. A multi-disciplinary team of authors provides a comprehensive overview of current technologies and future trends, including solar technologies, wind energy, hydropower, microbial electrochemical systems and various biomass sources for biofuel production. In addition, the book focuses on solutions for developing countries. Conventional energy sources are finite, and estimates suggest that they will be exhausted within a few decades. Finding a solution to this problem is a global challenge, and developing countries in particular are still highly dependent on fossil fuels due to their rapidly growing populations accompanied by a huge growth in primary energy consumption. Moreover, the most common conventional energy sources (coal and petroleum) are non-sustainable since their combustion exponentially increases greenhouse gas emissions. As such, there is a pressing need for clean energy based on alternative or renewable resources, not only to ensure energy supplies at an affordable price but also to protect the environment.

Spatial Modeling and Assessment of Environmental Contaminants - Risk Assessment and Remediation (Hardcover, 1st ed. 2021):... Spatial Modeling and Assessment of Environmental Contaminants - Risk Assessment and Remediation (Hardcover, 1st ed. 2021)
Pravat Kumar Shit, Partha Pratim Adhikary, Debashish Sengupta
R4,385 Discovery Miles 43 850 Ships in 18 - 22 working days

This book demonstrates the measurement, monitoring and mapping of environmental contaminants in soil & sediment, surface & groundwater and atmosphere. This book explores state-of-art techniques based on methodological and modeling in modern geospatial techniques specifically focusing on the recent trends in data mining techniques and robust modeling. It also presents modifications of and improvements to existing control technologies for remediation of environmental contaminants. In addition, it includes three separate sections on contaminants, risk assessment and remediation of different existing and emerging pollutants. It covers major topics such as: Radioactive Wastes, Solid and Hazardous Wastes, Heavy Metal Contaminants, Arsenic Contaminants, Microplastic Pollution, Microbiology of Soil and Sediments, Soil Salinity and Sodicity, Aquatic Ecotoxicity Assessment, Fluoride Contamination, Hydrochemistry, Geochemistry, Indoor Pollution and Human Health aspects. The content of this book will be of interest to researchers, professionals, and policymakers whose work involves environmental contaminants and related solutions.

Advanced and Applied Studies on Ultra-Trace Rare Earth Elements (REEs) in Carbonates Using SN-ICPMS and LA-ICPMS (Hardcover,... Advanced and Applied Studies on Ultra-Trace Rare Earth Elements (REEs) in Carbonates Using SN-ICPMS and LA-ICPMS (Hardcover, 1st ed. 2021)
Chung-Che Wu
R3,983 Discovery Miles 39 830 Ships in 18 - 22 working days

This book provides two state-of-the-art quantitative techniques to determine ultra-trace rare earth elements (REEs) in natural carbonates using solution nebulization-inductively coupled plasma mass spectrometry (SN-ICPMS) and laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) with respective applications were presented in this dissertation. These techniques were applied to natural carbonates, including corals and stalagmites, to understand volcano eruptions and the impacts on modern biosystem and paleoclimate regimes. In the first SN-ICPMS protocol, direct measurements for femtogram quantity carbonate samples without chemical separation steps can offer accurate and high-precision analysis (+/-1.9-6.5%, 2 ) with a high sample throughput of 8-10 samples/hr routinely. Application to modern Porites corals collected from South China Sea region, the anomalies of REE contents and Al/Ca ratios associated with micro-domain images, register modern coral reefs could be exacerbated by volcanic eruptions. In the second protocol, a high-sensitivity quantitative open-cell LA-ICPMS technique has been established to allow direct sampling on stalagmite surface in the atmospheric air. This technique improved limits of detection down to sub-ng/g range and promises analyses of carbonate REE profiles at the single digit parts-per-billion (ppb) levels. Application to a 15-cm stalagmite collected from East Timor reveals two peaks of REE contents by at least one order of magnitude, possibly due to volcanic ash preserved in stalagmite. Both improved SN-ICPMS and LA-ICPMS techniques highlight the high-sensitivity and high-temporal-resolution carbonate REE analyses for corals and stalagmites, with great potential to other natural carbonates such as travertine, tufa, and flowstone, benefit our understanding of paleoclimatic and paleoenvironmental dynamics.

Physical and Chemical Properties of Aerosols (Hardcover, 1998 ed.): Ian Colbeck Physical and Chemical Properties of Aerosols (Hardcover, 1998 ed.)
Ian Colbeck
R5,396 Discovery Miles 53 960 Ships in 18 - 22 working days

An aerosol is a suspension of fine particles in a gas, usually air, and is generally taken to include both solid and liquid particles with dimensions ranging from a few nanometres up to around 100 micrometres in diameter. Aerosol sicence is the study of the physics and chemistry of aerosol behaviour and this includes techniques of generating particles of nanometre and micrometre dimensions: size classification and measurement, transport and deposition properties: chemical properties of aerosols in the atmosphere and in industry, as well as health effects from inhalation and industrial gas cleaning technology. Aerosols have important commercial implications, e.g. pressure-packaged aerosol' products, agricultural sprays, atmospheric visibility and high technology materials and knowledge of aerosol properties is important in a wide range of disciplines, including industrial hygiene, air pollution, medicine, agriculture, meteorology and geochemistry. Written by an international team of contributors, this book forms a timely, concise and accessible overview of aerosol science and technology. Chemists, technologists and engineers new to aerosol science will find this book an essential companion in their studies of the subject. Those more familiar with aerosols will use it as an essential source of reference.

Marine Biofouling - Colonization Processes and Defenses (Paperback): Alexander I. Railkin Marine Biofouling - Colonization Processes and Defenses (Paperback)
Alexander I. Railkin
R2,042 Discovery Miles 20 420 Ships in 10 - 15 working days

Recent instances of bioinvasion, such as the emergence of the zebra mussel in the American Great Lakes, generated a demand among marine biologists and ecologists for groundbreaking new references that detail how organisms colonize hard substrates, and how to prevent damaging biomass concentrations. Marine Biofouling: Colonization Processes and Defenses is the English language version of a comprehensive work by eminent Russian scientist Alexander I. Railkin, who details the causes of vast biomass concentrations on submerged hard substrates. He also delivers a quantitative description of colonization processes and provides detailed models for preventing biofouling. This volume expounds on many topics rarely discussed in the frame of one book: types of hard substrate communities; comparison of hard and soft substrate communities; harm caused by micro- and macrofoulers; larval taxes and drift; mechanisms of settlement and attachment of microorganisms, invertebrates, ascidians and macroalgae; the impact of currents; protection from epibionts; industrial biofouling protection; successions on hard substrates; and the recovery of disturbed communities or the self-assembly of communities. The text includes much Russian-language research translated for the first time. Through a thorough examination of substrate organisms and an exploration of preventive methods, this monograph prepares those concerned with marine biology to help protect the self-purifying organisms that keep marine ecosystems healthy and productive.

Polymer Technology in Dye-containing Wastewater - Volume 1 (Hardcover, 1st ed. 2022): Ali Khadir, Subramanian Senthilkannan... Polymer Technology in Dye-containing Wastewater - Volume 1 (Hardcover, 1st ed. 2022)
Ali Khadir, Subramanian Senthilkannan Muthu
R1,734 Discovery Miles 17 340 Ships in 10 - 15 working days

Dyes are versatile compounds that have been successfully used in textile printing, rubber, cosmetics, plastic, pharmaceutical, and leather industries to color the products. Dye-using industries, particularly textile or printing industries are responsible for the generation of a great amount of colored wastewater that are polluting and threatening the environment. Many of these dyes are carcinogenic, mutagenic, and teratogenic, as well as harmful to human, aquatic life, and other living things and their elimination from wastewater is highly essential. Various approaches have been implemented in the efforts to mitigate the issue related to textile wastewater, such as adsorption, biological processes, advanced oxidation processes, membrane technology, etc. In this Volume 1, the application of various types of polymers in different wastewater treatment technologies are presented. The synthesis procedure of some polymers, the polymer modification, the effect of operational parameters on polymer efficiency, the interactions between polymers - dyes, etc are discussed.

Handbook for Environmental Risk Decision Making - Values, Perceptions, and Ethics (Paperback): C.Richard Cothern Handbook for Environmental Risk Decision Making - Values, Perceptions, and Ethics (Paperback)
C.Richard Cothern
R2,028 Discovery Miles 20 280 Ships in 10 - 15 working days

This handbook describes the broad aspects of risk management involving scientific policy judgment, uncertainty analysis, perception considerations, statistical insights, and strategic thinking. This book presents all the important concepts to enable the reader to "see the big picture." This ability is extremely important - it allows the decision maker or strategic environmental planner to understand and cope with a wide variety of complex and interlinked pieces of information and data. The text presents environmental problems and, whenever applicable, the methodology required to reach a successful solution. Decisions and policies are examined. The book covers numerous objective and subjective components of environmental risk decision making. It details quantitative and comparative risk, and investigates the cost and feasibility of different decisions. Social pressures, safety, and political, religious, ethical, and psychological issues are addressed. How to evaluate the potential impact on the quality of life also is discussed. Any company doing risk assessment, risk management, or risk communication, as well as those doing environmental decision making will find this reference to be invaluable. It is also suitable as a text for courses in environmental management, environmental science, and risk assessment in the areas of risk management and strategic environmental planning.

Chromatography of Natural, Treated and Waste Waters (Paperback): T. R Crompton Chromatography of Natural, Treated and Waste Waters (Paperback)
T. R Crompton
R2,211 Discovery Miles 22 110 Ships in 10 - 15 working days

Chromatography of Natural, Treated and Waste Waters is the first book to bring together information of a range of chromatographic techniques in all types of water, precipitation to sewage effluents. Organic and inorganic compounds, cations, anions and elements are all discussed. Particular attention is paid to multi compound analysis of water, and the analysis of minute traces of pollutants. Gas chromatography, high performance liquid chromatography and mass spectrometry are included in this well referenced and easy to use book.

The Coliform Index and Waterborne Disease - Problems of microbial drinking water assessment (Paperback): Cara Gleeson, Nick Gray The Coliform Index and Waterborne Disease - Problems of microbial drinking water assessment (Paperback)
Cara Gleeson, Nick Gray
R1,999 Discovery Miles 19 990 Ships in 10 - 15 working days

In the past decade there has been a rapid increase in waterborne outbreaks of disease associated with viral and protozoan agents, normally in drinking waters that were found to be microbially safe using the Coliform Index. For nearly a quarter of a century indicator organisms, in particular the coliform group, have been used to ensure the microbial quality of drinking water. Currently, world wide legislation to protect consumers is based on these outdated and unreliable tests and while there is considerable concern among scientists over their use, the water industry and regulators continue to place near total reliance on the Coliform Index. This book provides: * the first full account of the nature and applications of the Coliform Index * coverage of new and proposed water quality legislation: * details of emerging pathogens in water: * an evaluation of the role of the "coliform count" in future water quality analysis. It will be an essential tool for water companies at all levels, microbiologists, environmental health inspectors, environmental scientists and water engineers in industry whether working in developed countries or developing countries. Postgraduate students specialising in microbiology, civil and environmental engineering, environmental sciences and environmental health will find it a useful reference work as will undergraduates in these disciplines.

A Sustainable Bioeconomy - The Green Industrial Revolution (Hardcover, 1st ed. 2017): Mika Sillanpaa, Chaker Ncibi A Sustainable Bioeconomy - The Green Industrial Revolution (Hardcover, 1st ed. 2017)
Mika Sillanpaa, Chaker Ncibi
R5,397 Discovery Miles 53 970 Ships in 10 - 15 working days

An authoritative and comprehensive volume of knowledge and green technologies wholly focused on the future of the bioeconomy. The authors present data, show opportunities, discuss R&D findings, analyze strategies, assess the wider economic impact, showcase achievements, criticize policies and propose solutions for the green revolution in biofuels, biochemicals and biomaterials' production and power generation. A fascinating range of case studies from the US, China and many European countries are used to inform readers about the impact of this field on society and how various technologies are currently being implemented. Additionally, the role of industry on this green industrial revolution is outlined with contributions from several major companies such as DuPont (US), UPM-Kymmene Oy (Finland), Anhui BBCA Biochemical Co (China).

The Ethics of Precaution - Uncertain Environmental Health Threats and Duties of Due Care (Hardcover): Levente Szentkiralyi The Ethics of Precaution - Uncertain Environmental Health Threats and Duties of Due Care (Hardcover)
Levente Szentkiralyi
R4,488 Discovery Miles 44 880 Ships in 10 - 15 working days

There are thousands of substances manufactured in the United States to which the public is routinely exposed and for which toxicity data are limited or absent. Some insist that uncertainty about the severity of potential harm justifies implementing precautionary regulations, while others claim that uncertainty justifies the absence of regulations until sufficient evidence confirms a strong probability of severe harm. In this book, Levente Szentkiralyi overcomes this impasse in his defense of precautionary environmental risk regulation by shifting the focus from how to manage uncertainty to what it is we owe each other morally. He argues that actions that create uncertain threats wrongfully gamble with the welfare of those who are exposed and neglect the reciprocity that our equal moral standing demands. If we take the moral equality and rights of others seriously, we have a duty to exercise due care to strive to prevent putting them in possible harm's way. The Ethics of Precaution will be of great interest to researchers, educators, advanced students, and practitioners working in the fields of environmental political theory, ethics of risk, and environmental policy.

Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019) - Volume II:... Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019) - Volume II: Heating, Ventilation, Air Conditioning and Refrigeration System (Hardcover, 1st ed. 2020)
Zhaojun Wang, Yingxin Zhu, Fang Wang, Peng Wang, Chao Shen, …
R6,006 Discovery Miles 60 060 Ships in 10 - 15 working days

This book presents selected papers from the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019), with a focus on HVAC techniques for improving indoor environment quality and the energy efficiency of heating and cooling systems. Presenting inspiration for implementing more efficient and safer HVAC systems, the book is a valuable resource for academic researchers, engineers in industry, and government regulators.

Green Guerrillas - Environmental Conflicts and Initiatives in Latin America and the Caribbean (Paperback): Liam Kane Green Guerrillas - Environmental Conflicts and Initiatives in Latin America and the Caribbean (Paperback)
Liam Kane
R710 Discovery Miles 7 100 Ships in 10 - 15 working days
Managing Contaminated Sites - Problem Diagnosis & Development of Site Restoration (Hardcover): D.K. Asante-Duah Managing Contaminated Sites - Problem Diagnosis & Development of Site Restoration (Hardcover)
D.K. Asante-Duah
R7,111 Discovery Miles 71 110 Ships in 18 - 22 working days

Contaminated sites and facilities may pose significant risks to the local populations because of the potential health and environmental effects associated with environmental contamination problems. Also affected are property owners and financiers due to reduced property values and possible financial liabilities. The effective management of contaminated sites is therefore an important environmental issue, requiring careful planning. This book addresses the issues relevant to the investigation and management of contaminated sites, emphasising problem diagnosis/characterisation and the development of site restoration/corrective action programs. The book focuses on methodologies that will allow scientifically justifiable/defensible, technically feasible, and economically viable corrective action assessment and response decisions to be made. This includes methods for developing effectual site restoration tasks, methods for evaluating the progress of corrective action programs, and the application of risk assessment methods as a decision-making tool. The goal of the book is to synthesise technically sound principles and techniques that can be applied globally to contaminated sites in different regions of the world.

Contaminated Land - Problems and Solutions, Second Edition (Paperback, 2nd edition): T. Cairney, D. M Hobson Contaminated Land - Problems and Solutions, Second Edition (Paperback, 2nd edition)
T. Cairney, D. M Hobson
R2,109 Discovery Miles 21 090 Ships in 10 - 15 working days

Contaminated land is a problem both in the short and long term as it cannot be used without remediation. The investigation and analysis of the problem, along with the legal responsibilities surrounding the issues, continue to present difficulties to those wishing to use or develop a contaminated site. Since publication of the 1st edition, the area has developed rapidly. Building on the success of the first edition, the new edition has been fully updated to take account of advances in the field.

Water Resources - Health, Environment and Development (Paperback): Brian Kay Water Resources - Health, Environment and Development (Paperback)
Brian Kay
R2,092 Discovery Miles 20 920 Ships in 10 - 15 working days

This collection addresses the complexities of water management and the impact of environmental developments such as dams, reservoirs and irrigation schemes on public health. The main focus of the book is on vector-borne diseases such as malaria, arboviruses (dengue and encephalitides) and snail- borne schistosomiasis. These are examined from a wide range of intersectoral perspectives which encompass disciplines with often conflicting interests, for instance agriculture, aquaculture, urban development, social development, water management and recreation. The book explains developmental processes, such as the construction of man-made lakes, and addresses broad practical and policy-making issues. Most importantly, the book offers many innovative solutions to assist readers who work in the water industry, whether through administration or science and engineering disciplines. Contributions from an international team of experts provide numerous case studies from around the world (Australia, Indonesia, Thailand, USA), which illustrate both poor and successful water management. The contributors provide historical and current coverage of the environmental and health issues prevalent in the field, but also gaze prospectively on the future development of constructed wetlands, aquaculture, urban development and funding agency policies, with the view to managing water resources more effectively and safely. This authoritative and comprehensive book is written in an accessible, non-technical manner and will be of interest to those involved in various aspects of water management and delivery, whether biologically skilled or not.

Pesticides - Evaluation of Environmental Pollution (Paperback): Hamir S. Rathore, Leo M.L. Nollet Pesticides - Evaluation of Environmental Pollution (Paperback)
Hamir S. Rathore, Leo M.L. Nollet
R2,569 Discovery Miles 25 690 Ships in 10 - 15 working days

Pesticides play an important role in controlling pests that carry diseases and threaten crop production. In recent years, however, there has been increased concern about the adverse impacts of pesticides and their degradation products on public health and the environment. A considerable amount of work is being done to develop nonchemical methods of pest control, but it is not yet feasible to dispense with the use of chemical pesticides. Pesticides: Evaluation of Environmental Pollution brings together, in a single volume, current knowledge on environmental pollution caused by pesticides. It helps readers evaluate the effects that pesticide residues have in all compartments of the environment. Featuring contributions by eminent scientists from around the world, the book gives an overview of the fate and transport of pesticides and their degradation in the environment. Detailing the sources, concentration, and hazards of residues, it examines their effects in humans, birds and mammals, fish, soil invertebrates, soil microflora, aquatic invertebrates, water, milk products, and more. The book also addresses endocrine-disrupting pesticides and explores biopesticides as alternatives to chemical pesticides. A review of data on the potential hazards of pesticides, this reference will be of interest to readers working in the areas of chemical crop protection and pollution management. It adds a balanced perspective to the debate between those who think that pesticides should be banned and those who consider the continued use of large quantities to be necessary for the survival of humanity. See also Handbook of Pesticides: Methods of Pesticide Residues Analysis (CRC Press, 2009).

Determination of Metals and Anions in Soils, Sediments and Sludges (Paperback): T. R Crompton Determination of Metals and Anions in Soils, Sediments and Sludges (Paperback)
T. R Crompton
R1,468 Discovery Miles 14 680 Ships in 10 - 15 working days

Determination of Metals and Anions in Soils, Sediments and Sludges is the first volume which comprehensively discusses the range of methods currently available for the analysis of metals and anions in soils, river and marine sediments and industrial sludges. There are specialist chapters on sampling, pollutant accumulation in sediments and bioaccumulation from soils to crops. A particular feature of this volume is its coverage of solid sewage, which is increasingly being applied to land as a fertilizer. An essential reference for chemists and toxicologists involved in water resource management, agrochemistry, fisheries and public health.

Ecological Assessment of Selenium in the Aquatic Environment (Paperback): Peter M. Chapman, William J. Adams, Marjorie Brooks,... Ecological Assessment of Selenium in the Aquatic Environment (Paperback)
Peter M. Chapman, William J. Adams, Marjorie Brooks, Charles G. Delos, Samuel N. Luoma, …
R2,105 Discovery Miles 21 050 Ships in 10 - 15 working days

Based on the work and contributions of 46 scientists, managers, and policymakers, Ecological Assessment of Selenium in the Aquatic Environment documents the state of the science and explores how to use this information when assessing and managing the environmental effects of Se. A focused discussion on the fate and effects of Se in aquatic ecosystems, the book reviews: Past and current problems related to Se in aquatic environments, together with lessons learned, and provides a generalized conceptual model Environmental partitioning, in particular Se speciation leading to its entry into the food chain, and provides conceptual models specific to environmental partitioning. Se bioaccumulation and trophic transfer from the physical environment (i.e., water-column particulates), and from primary producers to herbivores to carnivores, including the influence of modifying ecological factors Toxic effects from Se, in particular body burdens and their relationship to toxicity Filled with practical guidance and concise information on how to conduct selenium risk assessments in the aquatic environment, the book contains the latest information on assessment techniques, elucidates the current state of contamination in industrialized countries, and raises awareness for developing nations. Written by leading experts, it describes best practices for designing experiments to collect information on aquatic effects and trophic transfer of selenium for risk assessments, presents numerous case studies both domestic and international, and gives insight as to how current and future ecosystems may or may not be affected.

Phosphate in Soils - Interaction with Micronutrients, Radionuclides and Heavy Metals (Hardcover): H.Magdi Selim Phosphate in Soils - Interaction with Micronutrients, Radionuclides and Heavy Metals (Hardcover)
H.Magdi Selim
R5,299 Discovery Miles 52 990 Ships in 18 - 22 working days

Edited by One of the Best Specialists in Soil Science Recent studies reveal that Phosphorus (P) in the form of phosphate, a macronutrient essential for plant growth, and crop yields can influence the bioavailability, retention, and mobility of trace elements, metal(loid)s, and radio nuclides in soils. When this occurs, phosphates can affect the dynamics of heavy metals and influence soil characteristics, impacting soil mobility and toxicity. Phosphate in Soils: Interaction with Micronutrients, Radionuclides and Heavy Metals utilizes the latest research to emphasize the role that phosphate plays in enhancing or reducing the mobility of heavy metals in soil, and the soil-water-plant environment. It provides an in-depth understanding of each heavy metal species, and expands on phosphate interactions in geological material.Composed of 12 chapters, this text: Provides an overview of the reactions of metal(loid)s and common P compounds that are used as fertilizer in soils Emphasizes the effect of phosphorus on copper and zinc adsorption in acid soils Discusses findings on the influence of phosphate compounds on speciation, mobility, and bioavailability of heavy metals in soils as well as the role of phosphates on in situ and phytoremediation of heavy metals for contaminated soils Places emphasis on the influence of phosphate on various heavy metals species in soils, and their solubility/mobility and availability Provides extensive information on testing various high phosphate materials for remediation of heavy metal, micronutrients, and radionuclides contaminated sites Explores the reactivity of heavy metals, micronutrients and radionuclides elements in several soils Presents a case study illustrating various remediation efforts of acidic soils and remediation of Cu, Zn, and lead (Pb) contaminated soils around nonferrous industrial plants Emphasizes the significance of common ions (cations and anions) on phosphate mobility and sorption in soils, and more The author includes analytical and numerical solutions along with hands-on applications, and addresses other topics that include the transport and sorption modeling of heavy metals in the presence of phosphate at different scales in the vadose zone.

Experimental Reversal of Acid Rain Effects - The Gardsjon Roof Project (Hardcover, New): H Hultberg Experimental Reversal of Acid Rain Effects - The Gardsjon Roof Project (Hardcover, New)
H Hultberg
R6,890 Discovery Miles 68 900 Ships in 18 - 22 working days

Acid deposition is considered to be one of the greatest threats to the environment in industrialised countries. Recognising this, governments have instituted programmes to reduce emissions of SO2, and NOx, the major sources of acid rain. But is this enough? Will ecosystems damaged by acid rain recover? And if they do, how quickly? What ecosystem processes determine the rate of recovery? Do acidification models give accurate predictions? Are any other actions necessary to promote recovery? To answer such questions without waiting for the results of current policies, scientists in Sweden and the UK decided to eliminate acid deposition on an acidified ecosystem altogether, and monitor the effects. They did this by constructing a huge roof over an acidified catchment near Lake GA rdsjAn in Southwest Sweden. Acid rain falling on the roof is diverted away, and replaced with clean rain. The detailed responses of the ecosystem are measured. This book records the results from the first five years of the Project, and considers the implications for emission control. The book describes the effect of eliminating acid deposition (and some other pollutants) on vital ecosystem processes both chemical and biological and how the predictions of acidification and hydrological models compared with experimental results. It describes the covered catchment, how the roof was constructed and the problems associated with such large experiments. The implications for pollution control policies, and what still needs to be discovered, are emphasised. The book should be of interest to a wide variety of environmental scientists, especially those interested in pollution effects, forestry, freshwater fisheries, andecosystem function, and to environmental managers and policymakers.

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