Biomonitoring is a vital and rapidly growing field. Freshwater Biomonitoring and Benthic Macroinvertebrates presents a state-of-the-art look at the use of benthic macroinvertebrates (aquatic insects, molluscs, crustaceans, and worms) in the biological assessment of water quality in lakes and streams. The use of these organisms has increased dramatically in the past two decades in both North America and Europe; no other comprehensive overview of the topic is available. This book contains contributions from nineteen experts from North America, Europe, and Australia. Some chapters contain updates and syntheses of new information on previously reviewed topics, while others present the first detailed coverage of a topic. The book includes much useful reference material on the history of biomonitoring with invertebrates as well as work of a more practical nature. The design, implementation, analysis and interpretation of benthic surveys are discussed in detail, as are toxicity testing and field experiments. This timely and important book will be of interest to professional entomologists, invertebrate zoologists, and aquatic ecologists, especially those in applied areas concerned with environmental quality, preservation, and restoration. Those working in the growing environmental biotechnology field, or in government agencies responsible for monitoring drinking water, environmental quality, or marine habitats, will also find many new ideas here.

International concern in scientific, industrial, and governmental communi ties over traces of xenobiotics in foods and in both abiotic and biotic envi ronments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published research papers and progress reports, and archival documentations. These three international publications are integrated and scheduled to provide the coherency essential for nonduplicative and current progress in a field as dynamic and complex as environmental contamination and toxicology. This series is reserved ex clusively for the diversified literature on "toxic" chemicals in our food, our feeds, our homes, recreational and working surroundings, our domestic animals, our wildlife and ourselves. Tremendous efforts worldwide have been mobilized to evaluate the nature, presence, magnitude, fate, and toxi cology of the chemicals loosed upon the earth. Among the sequelae of this broad new emphasis is an undeniable need for an articulated set of authoritative publications, where one can find the latest important world literature produced by these emerging areas of science together with docu mentation of pertinent ancillary legislation. Research directors and legislative or administrative advisers do not have the time to scan the escalating number of technical publications that may contain articles important to current responsibility. Rather, these individu als need the background provided by detailed reviews and the assurance that the latest information is made available to them, all with minimal literature searching."

Mercury is widespread in our environment. Methylmercury, an organic form of mercury, can accumulate in the aquatic food chain and lead to high concentrations in predatory fish. When consumed by humans, contaminated fish represent a public health risk. Toxic Effects of Mercury intends to facilitate among its readers the understanding of the importance of mercury pollution in the environment and the health consequences associated with exposure to this metal. The knowledge on methylmercury (MeHg) toxicity collected over the years is undoubtedly robust creating an impression all that is to be learnt about this metal has already been accomplished. However, in large measure, past knowledge has merely laid the ground for interesting questions that have yet to be fully addressed and concepts have yet to be deciphered. One of my major goals was to make a valiant attempt to include state-of-the-art information on the mechanisms of mercury toxicity, describing its effects on cultured cellular systems as well as in whole living organisms, starting from the lessons learned from the tragic events in Minamata Bay, Japan. A special focus of the book is on the neurotoxic effects of MeHg. An understanding at the cellular level is necessary to gather information on the structural and functional alterations induced by MeHg and how they possibly become unmasked and evident at the behavioral level, 32 chapters of the book have been organisedhaving these considerations in mind.

This book will provide state-of-the-art information to the graduate students training in toxicology, risk assessors, researchers and medical providers at large. It is aimed to bring the readers updated information on contemporary issues associated with exposure to methylmercury, from its effects on stem cells and neurons to population studies. It is a valuable resource for individuals interested in the public health effects and regulation of mercury. The report provides an excellent example of the implications of decisions in the risk assessment process for a larger audience and is written with the hope that the information will provide better understanding of the mercury problems which confront us."

The job of the responsible zoologist should be to assess or attempt to predict the consequences of any effluent or other environmental disturbance as objectively as possible, bearing in mind both the needs of conservation and the reasonable demands of man. This book has been written to assist this process of assessment and prediction as far as thermal discharges are concerned. It gives a summary and review of the biological studies which have been carried out in various habitats and in response to a variety of problems related to cooling water usage, particularly on the large scale as in thermal power stations. By discussing and summarizing the hugely variable field studies, the book should help the reader to unravel the complexity of the effects of at least one kind of effluent. It should also be of use in the future planning of industries which use cooling water and for the controlling authorities whose task is to set realistic constraints on these industries.

Biodiversity is the delicate ecological balance within biological systems such as species and populations. Evidence suggests air pollution disrupts and impoverishes ecosysytems processes, and genetic and population diversity. Based on a symposium conducted by the EPA's Environmental Research Laboratory, this book pulls together current knowledge on the subject, assesses its relevance, and offers a framework for future research on the impact of air pollution on biodiversity through all levels of biological organization. This text is particularly timely due to acid rain and other toxic problems. The text also discusses the best available control technology, management practices, alternative chemicals, and legislative ways to reduce the impact of air pollution on biodiversity.

Concern over the effects of chemicals in the environment has been increasing for many years. Environmental contamination by DDT, Aldrin, Dieldrin, mercury, PCBs, organotins and many other sub stances are all part of the public consciousness and have led to widespread attention to this topic. Some of the concerns have arisen because human health has been affected when contaminants have been consumed via the food chain-for instance in the case of 'Minimata disease' in Japan. In other cases, direct effects on other components of ecosystems have given cause for alarm. The toxic effects which any chemical can cause are a function of exposure and innate toxicity, i.e. of the ability to reach in sufficient quantity a site where a biological process can be disrupted and of the tendency to cause disruption when it gets there. The processes by which chemicals reach sites of toxic action are the subject of this book, and are a fundamental consideration in ecotoxi cology. When a chemical enters the environment e.g. via a spillage or in an effluent, it is potentially subject to a wide variety of processes which may eliminate it from the environment completely, modify it into a more or less harmful substance, or transfer it to another part of the environment. The processes involved are complex and highly variable, but it is essential to increase our understanding of them."

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.

Bacteria in a test tube and humans on our planet follow the same population curve as time elapses. We on this earth, largely through control of disease, are rapidly ap proaching maximum population, and through energy demands are using up our resour ces and accumulating wastes. We have come to realize the danger of a maturing system but have made essential ly no impact in mitigating or preventing the problems we face. While we have been able to change the world we live in, most of our effects have been to degrade the planet. We have nibbled away at the quality of the atmosphere for centuries and the ac cumulated damage has resulted in changing the world's climate at an ever-increasing rate. We now face the possibility of higher average temperatures over most of our planet, changing patterns of rainfall, rising sea levels, aggravated storm systems and a myriad of social effects.

single toxicant before it, yet one that has now been brought under effective control-at least in estuaries and the nearshore environment. The problem with TBT and its cause was first recognized in France, then in the United Kingdom and the United States of America; and in these and other countries legislation is now in place (see Abel, Chapter 2; Champ and Wade, Chapter 3), but in many countries the hazard is only now being identified. This volume has the important function of making available to all a summary of the results of work on TBT and the main conclusions. It will help to minimize the duplication of research and speed the introduction of legislation around the world to control organotin pollution. It is the more valuable because research on TBT has often been published in less accessible journals and symposium proceedings. This volume brings together accounts of these findings by the major contributors to the TBT story, providing the most comprehensive account to date. The TBT problem has proved to be instructive in a number of different ways beyond the bounds of the specific issue (Stebbing, 1985). Most important is that TBT can be seen as a challenge to monitoring systems for nearshore waters, by which it can be judged how effective monitoring has been in fulfilling its purpose, and what improvements should be made. Most instructive was the time it took to bring TBT under control.

Whilst heavy metal phytotoxicity has been known for more than a century, it is astonishing that interest in the effects of heavy metals on organisms has only recently received added attention. Research in the past years, however, has confirmed the immense damage by metal pollution to plants, the soil and ultimately to humans. This completely updated and enlarged second edition gives a state-of-the art review on both field and laboratory work. It deals with the various functional and ecological aspects of heavy metal stress on plants and outlines the scope for future research and the possibilities for remediation.

This authoritative volume examines immunohistochemical methods aimed at investigating the toxicologic pathology of rodent, non-human primate and aquatic animal tissues. Eleven comprehensive chapters provide pathologists and researchers in various sub-disciplines of toxicology with a comprehensive review of the methods and approaches for immunohistochemical staining in various target tissues. It explores the tissue-antigen and antibody-specific problems that may be encountered during the staining procedures and provide potential avenues for resolving various methodological issues. Special attention is paid to the latest enhancement procedures for antigen retrieval and visualization as well as image analysis and antigen quantification. Written by leading researchers in toxicology and pathology, this book is a significant resource for toxicologists and pathologists working with rodents, monkeys and aquatic animal tissues.

This volume focuses on the effects of natural and introduced toxicants on organs and systems in marine mammals. It includes overview chapters on health status and contaminations with subsequent chapters devoted to whales, pinnipeds (seals), dolphins, polar bears, manatees, and sea otters. The concluding chapter addresses perspectives and issues for the future.
Toxicologists working in marine biology and veterinary medicine, conservation scientists, fisheries scientists, environmental scientists, and wildlife managers will all benefit from this comprehensive resource.

eBook available with sample pages: 0203165578

Saponins are complex molecules made up of sugars linked to a triterpenoid or a steroid or a steroidal alkaloid. These natural products are attracting much attention in recent years because of the host of biological activities they exhibit. The diversity of structural features, the challenges of isolation because of their occurrence as complex mixtures, the pharmacological and biological activities still to be discovered, and the prospect of commercialization - these all are driving the study of saponins. Triterpenoid saponins are dominating constituents of this class and occur widely throughout the plant kingdom including some human foods e. g. beans, spinach, tomatoes, and potatoes, and animal feed e. g. alfalfa and clover. Saponins were initially a rather neglected* area of research primarily because of great difficulties in their isolation and characterization. With the advent of more sophisticated methods of isolation and structure elucidation through the last two decades, there has been increased interest in these natural products. Besides structure determination, research activities are now moving forward to clarify structure-activity relationships. Our previous reviews on triterpenoid saponins (l, 2) covered literature from 1979 to mid-1989. The literature on triterpenoid saponins up to 1988 has also been covered by two reviews by HILLER et at. (3, 4). This review incorporates newer trends in isolation and structure determination of triterpenoid saponins, new triterpenoid saponins isolated and biological properties of these products reported during the period late 1989-mid 1996. 2.

This text contains the proceedings of the Workshop on The Transfer of Radionuclides in Natural and Semi-Natural Environments, held at the Villa Manin, Passariano (Udine), Italy, 11-15 September 1989.

Drawing on contributions from more than thirty scholars and experts in the field, this book examines the role of business as an enabler, as an inhibitor, and ultimately as a co-actor in global sustainability transformations expected over the next few decades. The Role of Business in Global Sustainability Transformations employs several theoretical perspectives and provides abundant examples and cases to discuss a variety of emerging concepts, phenomena, and trends shaping business sustainability. Weaving through the chapters, the editors present core tensions and sources of inertia towards transformative change, and acknowledge that envisioning multiple solutions and pathways are possible and desirable. They advocate for the need to align visions, actions and time horizons between policy, society and business in addressing the interlinked socio-ecological challenges that our society currently faces. This book will be an important resource for scholars and professionals working in the field of sustainability and sustainable business, and a vital educational text for students interested in this discipline.

Engineers who play a major role in hazardous waste management, must have full understanding of technical, regulatory, economic, permitting, institutional and public policy issues. This reference book provides this information, providing data and techniques that can be applied to analyzing, designing and developing effective hazardous waste management solutions.

Structure-Activity Relationships in Environmental Science is the first book of its kind that brings together information from a variety of sources into one document. It provides a comprehensive overview of the entire field of quantitative structure-activity relationships (QSARs) as well as being a reference for SAR experts. The book comprises three parts. Part One covers the theoretical background of structure-activity studies and Part Two deals with the practical applications of such methods in the environmental sciences. Part Three critically discusses SAR models with respect to their reliability and their aptness in environmental hazard and risk assessment. Recommendations are made as to which model to use and the case is presented for using QSARs in hazard assessment. The use of QSARs is becoming increasingly important since there is little experimental data available on environmentally relevant chemicals. Structure-Activity Relationships in Environmental Sciences will thus serve as an invaluable guide to both postgraduate and research scientists as well as professional ecologists.

This updated and expanded Second Edition of Dr. Erickson's Analytical Chemistry of PCBs appears a decade after the first and is completely revised and updated. The changes from the First Edition reflect the significant growth in the area and a growing appreciation of the importance of PCB analysis to our culture. This book is a comprehensive review of the analytical chemistry of PCBs. It is part history, part annotated bibliography, part comparison, and part guidance. Featuring a new chapter on analyst/customer interactions and several new appendices, the Second Edition is an invaluable resource for both chemists with no experience in PCB analysis and seasoned PCB researchers.
All topics have been more thoroughly treated and updated in this new edition to reflect advances made in the last decade, especially:

This volume offers the most comprehensive presentation available on metal toxicology. It discusses not only metals but also the toxic endpoints, such as neurotoxicity, renal toxicity, and cancer induction. Chapters are written by experts in their respective fields, focusing on carcinogenesis and human exposures and highlighting the major aspects and issues of toxicity in general.

This book is about poison and poisonings; it explores the facts, fears and fictions that surround this fascinating topic. Poisons attract attention because they are both dangerous and hard to discover. Secretive and invisible, they are a challenging object of representation. How do science studies, literature, and especially film-the medium of the visible-explain and show what is hidden? How can we deal with uncertainties emerging from the ambivalence of dangerous substances? These considerations lead the editors of this volume to the notion of "precarious identities" as a key discursive marker of poisons and related substances. This book is unique in facilitating a multi-faceted conversation between disciplines. It draws on examples from historical cases of poisoning; figurations of uncertainty and blurred boundaries in literature; and cinematic examples, from early cinema and arthouse to documentary and blockbuster. The contributions work with concepts from gender studies, new materialism, post-colonialism, deconstructivism, motif studies, and discourse analysis.

The opportunities for improving crops and the environment using genetic engineering have aroused much interest but the public have expressed concerns as to whether there are hazards associated with these techniques. A workshop was held at King's College London, UK, within the framework of the OECD (Organisation for Economic Cooperation and Development) and this book has its origins in that meeting.

Second in our Ecotoxicology series, this book presents a timely discussion of theoretical and practical issues involved in the study of ecotoxicology. By concentrating on the key issues, the book provides an exciting introduction for those new to ecotoxicology while stimulating veterans in the field into lively debate.

Each volume in the series focuses on a particular taxon, presenting detailed and reliable ecotoxicological results from both laboratory and field experiments, performed for a comprehensive range of chemicals. A taxonomical guide to the species is given, together with relevant biological and ecological information.
In recent times much attention has been focused on the effects of anthropogenic emissions of chemicals. This series is unique in providing a considered estimate of the potential impact of such chemicals on the environment.
"Ecotoxicity of Chemicals to Photobacterium Phosphoreum" is the second volume in the series "Handbooks of Ecotoxicological Data." After a brief introductory chapter on the usefulness of the Microtox(R) test, toxicity results for a large collection of over a thousand chemicals are presented in unparalleled detail, thus ensuring the accuracy and reliability of the data. An advantage of this book is that it contains many hitherto unpublished results which

The contributors provide a rich overview of the strengths and limitations of using risk assessment methods in the occupational health arena. This book brings together a distinguished group of experts in occupational health and risk assessment who express diverse views on the usefulness of risk assessment in the protection of worker health. Representatives from regulatory agencies, labor, industry, and academia consider both policy and technical issues, providing a rich overview of the strengths and limitations of using risk assessment methods in the occupational health arena. Both policy and technical issues are explored. Several contributors focus on the policy implications of regulatory agencies' increasing reliance on risk assessment to guide occupational and environmental risk reduction strategies. Others consider specific methodological issues relating to the application of state-of-the-art scientific developments to the evaluation of occupational risks. Chapters are organized to consider specific aspects of the field including current applications of risk assessment methods by federal regulatory agencies; approaches to improving the use of epidemiological data in risk assessment; the use of animal bioassay data to predict occupational risks; potential uses of cutting-edge scientific data on toxicological mechanisms, toxicokinetics, and biomarkers in risk assessment; specific issues including ethics, values, and sociopolitical aspects of the process, and a concluding chapter discussing future directions to the evaluation and regulation of risks to worker health and safety. Given the range of policy and technical issues explored, this collection will be invaluable to professionals as well as academics in the fields of occupational health and environmental risk assessment.

With the advent of the Safe Drinking Water Act Amendments of 1986, many water utilities are reexamining their water treatment practices. Upcoming new regulations on disinfection and on disinfection by-products, in particular, are the primary driving forces for the big interest in ozone. It appears that ozone, with its strong disinfection capabilities, and apparently lower levels of disinfection by-products (compared to other disinfectants), may be the oxidant/disinfectant of choice. Many utilities currently using chlorine for oxidation may need to switch due to chlorine by-product concerns. Utilities using chloramines may need to use ozone to meet CT requirements.
This book, prepared by 35 international experts, includes current technology on the design, operation, and control of the ozone process within a drinking water plant. It combines almost 100 years of European ozone design and operating experience with North American design/operations experience and the North American regulatory and utility operational environment. Topics covered include ozone chemistry, toxicology, design consideration, engineering aspects, design of retrofit systems, and the operation and economics of ozone technology. The book contains a "how to" section on ozone treatability studies, which explains what information can be learned using treatability studies, at what scale (bench, pilot, or demonstration plant), and how this information can be used to design full-scale systems. It also includes valuable tips regarding important operating practices, as well as guidance on retrofits and the unique issues involved with retrofitting the ozone process.
With ozone being one of the hottest areas of interest in drinking water, this book will prove essential to all water utilities, design engineers, regulators, and plant managers and supervisors.