Given the essential role that primary producers play in aquatic ecosystems, it is imperative that the potential risk of pesticides to the structure and functioning of aquatic plants is adequately assessed. An integration of regulatory and research information from key specialists in the area of environmental regulation, Aquatic Macrophyte Risk Assessment for Pesticides provides a state-of-the-art guide to ecotoxicological risk assessment. Written by well-known experts in the field of aquatic risk assessment, this book is a practical reference for the assessment of the risk of pesticides with herbicidal activity to aquatic macrophytes. The book supplies a concise, coherent, and science-based view from influential regulators, academics, and industry scientists. They address the selection of additional species, critical regulatory endpoints, and assessing the risk of plant protection products to aquatic macrophytes. They also present a clear description of key issues in macrophyte risk assessment, information on macrophyte test methods, suitable measurement endpoints, and data evaluation and interpretation. Filled with recommendations distilled from existing regulatory experiences of aquatic macrophyte risk assessment, the book includes case studies to identify issues, data gaps, and inadequacies in study design. It also identifies improvements to risk assessment that could be implemented immediately and those for which further research is needed. An authoritative resource, the book points the way to an improved approach to aquatic macrophyte risk assessment.

Current procedures used for hazard identification and classification are based on persistence, bioaccumulation, and toxicity measurements. Assessing the Hazard of Metals and Inorganic Metal Substances in Aquatic and Terrestrial Systems provides the basis for improvements to the current model for hazard assessment. The book reviews the scientific underpinnings of the use of persistence as applied to metals, including bioavailability, and the use of bioaccumulation to evaluate aquatic species and aquatic-linked food chains. It also examines toxicity procedures as used within PBT approaches and measurements for metals in terrestrial ecosystems. The book brings together a multidisciplinary and international group of scientists, managers, and policy makers from Australia, Belgium, Canada, Germany, the Netherlands, the United Kingdom, and the United States to discuss various means for assessing the environmental hazard posed by metals and inorganic metal substances. The contributors include representatives from regulatory and nonregulatory government agencies, academia, industry, environmental groups, and consulting firms involved in assessment, management, and basic research of metals and metal substances. They provide a focused discussion of the fate and effects of metals in the environment, incorporating important advances developed over the past decade.

With growing interest in the safety of foods, knowledge of food toxicology is gaining more importance every day. Introduction to Toxicology and Food provides a concise overview of both the science of toxicology and food toxicology. It presents easy-to-understand explanations of the concepts and principles of toxicology as a science, the toxicants found in foods, and naturally occurring antitoxic/anticarcinogenic substances in foods. It examines the uses, harmful effects, and safety aspects of a variety of toxicants, including natural toxicants, contaminants, and food additives. The book begins with a general overview of the concepts and principles of toxicology. It describes its history and branches, toxic doses, stages of toxication, effect mechanisms of toxins, and toxicity tests. Then it covers the substances in our foods that have toxicological significance, such as natural sources of toxicants, contaminants, and food additives. Finally, the book presents information about "chemopreventers" - those foods and food components that have antimutagenic or anticarcinogenic effects. With its easy-to-read style and its clear discussions of the science of toxicology, food toxicology, and chemopreventers, Introduction to Toxicology and Food is an ideal text for an undergraduate course in food toxicology and a useful guide for food scientists.

The journey to find genes responsible for determining sensitivity or resistance to specific insecticides led to the paraoxonase (PON1) gene on human chromosome 7. This gene encodes a 355 amino acid protein that is localized on the high density lipoprotein (HDL) particles in plasma. Characterization of this gene revealed that different individuals expressed both different forms of this enzyme with amino acid substitutions at positions 55 and 192 as well as different levels of this protein. Additional studies showed that mutations in the regulatory region of the PON1 gene contributed to the very different levels of plasma PON1 among individuals. It turned out that both the level of the enzyme as well as the amino acid present at position 192 (glutamine or arginine) are important in determining resistance to the active forms of specific organophosphorus insecticides, especially diazinon and chlorpyrifos. The position 192 amino acid also determined whether an individual's plasma hydrolyzed the nerve agents soman and sarin at high or low rates. It is not yet known whether these different rates of hydrolysis observed in biochemical assays reflect differences in sensitivity of individuals to nerve agents. Taken together, all of the experiments carried out to date indicate that engineered recombinant PON1 is an excellent candidate to use for treating cases of poisoning by specific organophosphorus compounds. The available data on the relationship of PON1 levels and position 192 genotype led us to introduce the term PON1 status to describe an individual's PON1 plasma level as well as their position 192 genotype.

The characterization of the genetic variations of the PON1 gene together withexperiments showing that HDL can protect the lipids in low density lipoprotein particles (LDL) from oxidation and that it was PON1 that was responsible for this protection have opened an entirely new area of investigation, the role of PON1 in protecting against vascular disease.

More recent reports have noted that PON1 also metabolizes a number of drugs, activating some and inactivating others.

This book describes the recent advances in understanding the role of PON1 in both cardiovascular disease and toxicology of insecticide exposure as well as some of the recent information indicating an important possible role in the pharmacokinetics of drug metabolism. The final chapter of the book provides an overview of the areas of PON1 research and suggests future directions for research on PON1 as well as the related, linked genes PON2 and PON3.

Brainstorming Questions in Toxicology is designed to serve as a comprehensive, quick reference supplement for various examinations that include sections on toxicology. It reflects the breadth and multidisciplinary nature of toxicology with an objective approach to the subject. With 3500 short questions and answers, multiple choice questions, true/false or correct/incorrect statements, fill in the blanks, and matching the statements, this book is a helpful tool for students, teachers and toxicologists preparing for licensure and certification exams. It is also a resource or refresher for toxicologists working in pharmacy, medical, clinical and forensic toxicology, veterinary, and other related fields such as environment and eco-toxicology. Key Features: Serves as a refresher for academicians and professionals in the field of toxicology Provides an essential guide for the student who needs a study aid for toxicology and the teacher of toxicology who needs inspiration when composing questions for their students Supplements in-house training courses in toxicology that exist in some pharmaceutical and chemical industries

This volume describes the structure and function of bacterial toxins and presents a comprehensive review of virulence factors, providing recent information concerning cell physiology and biochemistry, as well as new toxin tools for experimental studies and clinical therapy. A wide variety of toxic proteins, including the toxins that cause diptheria, cholera, pertussis, shigellosis, tetanus, botulism and anthrax, are discussed.;The work is aimed at microbiologists, biochemists, endocrinologists, toxicologists, infectious disease specialists, pathologists, public health officials, and upper-level undergraduate and graduate students in these disciplines.

This book presents an integrated and holistic discussion on cadmium, lead and mercury toxicity in aquatic environments, expanding general concepts on chemical speciation effects and exploring specific environmental toxicological issues, exposure routes, and bioanalytical approaches for their determination and assessments on their intracellular deleterious effects. It contains worldwide and regional aspects on cadmium, lead and mercury occurrence, fate, and toxicity, addressing key environmental exposure and health risk concerns to both humans and aquatic organisms. Our book is of interest to anyone conducting research in the broad fields of oceanography, geochemistry, ecotoxicology, and environmental and public health.

This book, the second of three volumes, concentrates on peripheral nervous system disorders. Examining the effects of neurotoxicants on nerve, muscle and the neuromuscular junction, it builds on the scientific principles outlined in volume 1 by looking at the application of the methods discussed, particularly in terms of the evaluation and diagnosis of individual patients and the related process of establishing causation. Neurobehavorial Toxicology, Volume 2 will be of interest to practicing neurologists and neuropsychologists, as well as to occupational medicine physicians and medical toxicologists.

This book outlines the strategies used in the investigation, characterization, management, and restoration and remediation for various contaminated sites. It draws on real-world examples from across the globe to illustrate remediation techniques and discusses their applicability. It provides guidance for the successful corrective action assessment and response programs for any type of contaminated land problem, and at any location. The systematic protocols presented will aid environmental professionals in managing contaminated land and associated problems more efficiently. This new edition adds twelve new chapters, and is fully updated and expanded throughout.

Principles of Animal Extrapolation addresses the conceptual basis for animal extrapolation and provides an abundance of documentation that illustrates how these principles may be applied in the selection of the more appropriate models and in the interpretation of toxicological studies. The book analyzes and documents each specific biological cause of interspecies differences in susceptibility to toxic agents, including differences in absorption, gut flora, tissue distribution, metabolism, mechanisms and efficiencies of repair, and excretion. The problem of the heterogenicity of the human population is addressed through several chapters that assess the availability and prospects of developing predictive animal models for normal humans, as well as selected potential high-risk groups. Other topics presented in this book include the biological basis of regulatory actions involving attempts to extrapolate from exceptionally high exposure levels to realistic values, especially carcinogens; an assessment of genotoxicity tests, their ability to predict carcinogenicity in whole animals, and the manner in which they should be used by regulatory agencies; birth defects; and predicting the risk of human teratogenesis. Principle of Animal Extrapolation is essential for environmental toxicologists. It also provides valuable information to biomedical scientists (especially those involved in drug development and testing) and regulatory personnel in agencies such as the EPA, the OSHA, the NIOSH, and the FDA.

The field of electromagnetic sensitivity is the new epidemic of the 21st century, and can cause disease of the automatic nerve system in any part of the body. This is as a result of chemical sensitivity, in which over 80,000 chemicals are involved, resulting in innumerable combinations. A cursory understanding of the combinations can help clinicians partially understand the associated problems and thus help in the diagnosis and treatment of electromagnetic sensitivities. But a basic understanding of environmentally induced illness and healing must first be understood by the clinicians before diseases occur such as cardiac arrhythmia, muscle spasms, and nerve pain. Key Features: Describes how an understanding of the vast combinations of electrical and chemical sensitivities will help in the diagnosis and treatment of electromagnetic sensitivities Reveals the complexity and multi-faceted presentation often seen in chemical sensitivity and chronic degenerative disease cases Provides information backed up by rigorous scientific data including hundreds of tables and figures as online resources Features a Dedication to Robert Becker, MD, an orthopedic surgeon who was one of the first clinicians to recognize the significance of EMF in medicine and surgery, and also to his assistant Andrew Marino, PhD, who helped develop the basic science of orthopedic electromagnet healing

Exploring roles critical to environmental toxicology, Modeling and Simulation in Ecotoxicology with Applications in MATLAB (R) and Simulink (R) covers the steps in modeling and simulation from problem conception to validation and simulation analysis. Using the MATLAB and Simulink programming languages, the book presents examples of mathematical functions and simulations, with special emphasis on how to develop mathematical models and run computer simulations of ecotoxicological processes. Designed for students and professionals with little or no experience in modeling, the book includes: General principles of modeling and simulation and an introduction to MATLAB and Simulink Stochastic modeling where variability and uncertainty are acknowledged by making parameters random variables Toxicological processes from the level of the individual organism, with worked examples of process models in either MATLAB or Simulink Toxicological processes at the level of populations, communities, and ecosystems Parameter estimation using least squares regression methods The design of simulation experiments similar to the experimental design applied to laboratory or field experiments Methods of postsimulation analysis, including stability analysis and sensitivity analysis Different levels of model validation and how they are related to the modeling purpose The book also provides three individual case studies. The first involves a model developed to assess the relative risk of mortality following exposure to insecticides in different avian species. The second explores the role of diving behavior on the inhalation and distribution of oil spill naphthalene in bottlenose dolphins. The final case study looks at the dynamics of mercury in Daphnia that are exposed to simulated thermal plumes from a hypothetical power plant cooling system. Presented in a rigorous yet accessible style, the methodology is versatile enough to be readily applicable not only to environmental toxicology but a range of other biological fields.

The field of electromagnetic sensitivity is the new epidemic of the 21st century, and can cause disease of the automatic nerve system in any part of the body. This is as a result of chemical sensitivity, in which over 80,000 chemicals are involved, resulting in innumerable combinations. A cursory understanding of the combinations can help clinicians partially understand the associated problems and thus help in the diagnosis and treatment of electromagnetic sensitivities. But a basic understanding of environmentally induced illness and healing must first be understood by the clinicians before diseases occur such as cardiac arrhythmia, muscle spasms, and nerve pain.

This practical book provides toxicologists with essential information on the regulations that govern their jobs and products. Regulatory Toxicology, Third Edition is an up-to-date guide to required safety assessment for the entire range of man-made marketed products. Individual chapters written by experts with extensive experience in the field address requirements not only for human pharmaceuticals and medical devices (for which there are available guidances), but for the full range of man-made products. New in this edition are three chapters addressing Safety Data Sheet Preparation, Regulatory Requirements for GMOs, and Regulatory Requirements for Tobacco and Marijuana. The major administrative divisions for regulatory agencies and their main responsibilities are also detailed, as are the basic filing documents the agencies require. Coverage includes food additives, dietary supplements, cosmetics, over-the-counter drugs, personal care and consumer products, agriculture and GMO products, industrial chemicals, air and drinking water regulations and the special cases of California's Proposition 65, requirements for safety data sheets, and oversight regulations. Both US and international requirements are clearly presented and referenced. In one volume, those who have regulatory responsibility in companies, lawyers, educators, and those selling these materials in the marketplace can learn about regulatory requirements and how to meet them.

Forensic professionals, particularly medical examiners-often working through heavy caseloads-require quick and easy access to reliable sources of information to help interpret toxicology results. While several in-depth resources are available, they are often large, cumbersome, and contain more information than is often needed. The Handbook of Forensic Toxicology for Medical Examiners is a concise handbook referencing the most common toxic substances and their reported non-toxic, toxic, and lethal concentrations, making it an ideal text for quick reference in the lab or autopsy room. Features of the Second Edition: Explains the principles of postmortem toxicology and the factors which must be considered Provides tables of toxicologic data for over 200 commonly encountered substances, including drugs of abuse, poisons, prescription drugs, and over-the-counter medications Includes discussion and description of the novel psychoactive drugs-including synthetic opioids, cannabinoids, stimulants and hallucinogens Supplemental appendices provide additional information regarding specimen types and selection, testing methodologies, normal laboratory values, and conversion charts The busy forensic professional needs a concise handbook that provides critical information quickly and accurately. This heavily referenced text offers an easy-to-use format allowing for rapid access for both routine daily use and preparation for courtroom testimony.

With chapter contributions from more than 30 metal biology experts, Cellular and Molecular Biology of Metals explains the role of key divalent metal ions involved in the molecular and cellular biology of various target cell populations. Although it primarily focuses on homeostatic metals, such as nickel, zinc, and chromium, the text also discusses a few environmentally pertinent, toxic divalent cations, including mercury, cadmium, and arsenic. This authoritative resource reviews the physiological mechanisms underlying the handling of essential and toxic metal ions, including metal ion homeostasis, metals and enzyme activity, metals and transcriptional regulation, and metal ion transport. It also analyzes other functions designed to avoid metal-induced toxicity and mediate the metal enhancement of cellular function. The role of metal ions and their effect on mammalian cells and organs are only beginning to be truly defined. Cellular and Molecular Biology of Metals arms metals toxicologists and cellular and molecular biologists with the necessary knowledge they need to take the research effort to the next level. Key selling features: Presents the most recent advances in the cell and molecular biology of metal ions Provides a complete exploration of transport mechanisms Addresses homeostatic metals as well as several environmentally relevant toxic divalent cations Features contributions from experts in their respective fields

1. Discusses the properties, mechanisms, advantages, limitations and promising solutions of different types of membrane technologies 2. Addresses the optimization of process parameters 3. Describes the performance of different membranes 4. Presents the potential of Nanotechnology to improve the treatment efficiency of wastewater treatment plants (WWTPs) 5. Covers the application of membrane and membrane-based hybrid treatment technologies for wastewater treatment

The discussion on arsenic in the environment is complex and must grasp the importance of very many, mostly unrelated works on individual aspects. This volume represents one of the first comprehensive and interdisciplinary examinations into arsenic's behaviour in air, water, soils, sediments, plants and the human body. Based on state-of-the-art investigations into the global arsenic cycle, the related human toxicology and available remediation technologies, arsenic is assessed holistically in all the environmental compartments. Using the results of primary research, the authors offer concrete suggestions for risk reduction and management of environmental pollution that allow the reader to successfully tackle similar problems and find sustainable solutions. The book consists of three essential parts: Review of the current knowledge of arsenic behaviour in the environment (global biogeochemical cycles), toxicology, remediation techniques, immobilization technologies and environmental legislation Case studies for mining-related arsenic problems Discussion of mitigation and remediation technologies and approaches such as environmental education, hygiene training, backed by real experience and successful implementation in the study area In a highly coherent manner, the book makes use of 120 tables and figures, a large number of literature citations, and very detailed subject index (that encompasses references) to provide rapid and up-to-date access to all relevant information. Cross-references provide a great manoeuvrability between the chapters. The book delivers very insightful and hands-on approaches for graduate students and professionals working on arsenic questions not only in environmental science, but also in the fields of environmental engineering, medicine and social science.

Presents health benefits and medicinal importance of dietary polyphenols having antioxidative effects and their possible preventive role against oxidative stress (OS)-induced chronic human diseases Summarizes latest understanding on the biochemical mechanism(s) involved in the antioxidative action of dietary polyphenols along with their bioavailability, pharmacokinetic, and toxicological considerations Highlights novel approaches of drug discovery from dietary polyphenols through computational screening of bioactive phytochemical components

As the application of nanotechnology in the myriad disciplines of science and engineering--from agriculture, pharmaceuticals, material science, and biotechnology to sensors, electronics, and mechanical and electrical engineering--brings benefits it also can produce serious threats to human health and the environment that must be evaluated. The unique properties of nanomaterials make them different from their bulk counterparts. In addition to such unique properties, the nanometric size of nanomaterials can invite some detrimental effects on the health and well-being of living organisms and the environment. Thus, it is important to distinguish nanomaterials with such ill effects from nanomaterials with no or minimum toxicity. Nanotoxicology: Toxicity Evaluation, Risk Assessment and Management covers issues such as the basic principles of nanotoxicity, methods used for nanotoxicity evaluation, risk assessment and its management for nanomaterial toxicity with a focus on current trends, limitations, challenges, and future directions of nanotoxicity evaluation. Various experts from different countries discuss these issues in detail in this book. This will be helpful to researchers, educators, and students who are interested in research opportunities for avoiding the environmental and health hazards of nanomaterials. This book will also be useful for industrial practitioners, policy makers, and other professionals in the fields of toxicology, medicine, pharmacology, food, drugs, and other regulatory sciences.

Illustrated Toxicology: With Study Questions is an essential, practical resource for self-study and guidance catering to a broad spectrum of students. This book covers a range of core toxicological areas, including pesticides, radioactive materials and poisonous plants, also presenting a section on veterinary toxicology. Across 16 chapters, the book presents key concepts with the aid of over 250 detailed, full-color illustrations. Each section is supplemented with practical exercises to support active learning. This combination of clear illustrations and sample testing will help readers gain a deeper understanding of toxicology. This book is useful for toxicology, pharmacy, medical and veterinary students, and also serves as a refresher for academics and professionals in the field, including clinical pharmacists, forensic toxicologists, environmentalists and veterinarians.

Increased awareness surrounding environmental protection has prompted the development of more ecofriendly technologies. This book provides useful information on technologies based upon the use of biological agents for environmental clean-up, including bacteria, yeast, fungi, algae, and plants. Some chapters refer to the direct application of products derived from plants and microorganisms for designing strategies of environmental remediation. The combination of strategies helps in efficient removal of pollutants generated from anthropogenic activities with minimal environmental impact. This book is meant for professionals involved in environmental technology and waste management.

One of the very few - if not only - books written exclusively related to this topic. This book comprehensively outlines the principles governing the accumulation of chemicals from the environment by organisms. Packed with tables and diagrams, this work reviews the experimental data available on both terrestrial and aquatic systems. It describes methods which are used to predict bioaccumulation of chemicals from their physicochemical properties. It also reviews environmental and other factors influencing bioaccumulation. This text also includes previously unpublished theoretical explanations of several bioaccumulation processes, including food chain biomagnification. Information in this exceptional volume is useful to government officials involved with environmental management, chemists, biologists, consultants working with chemical waste control, researchers, and graduate students.

Karch's Drug Abuse Handbook, Third Edition remains the quintessential compendium addressing the pharmacological, medical, and legal aspects of drugs and informing the forensic community of the latest scientific advances and emergent practices. For this edition, Dr. Karch has brought on clinical and forensic toxicology expert Dr. Bruce Goldberger, editor-in-chief of the Journal of Analytical Toxicology and president of the American Board of Forensic Toxicology, to serve as co-editor. In addition, world-renowned scientists and medical professionals have contributed their work and expertise in tackling the latest developments in drug testing, drug-related medical emergencies, and the drug toxicology. Topics addressed include genetic testing in drug death investigation, pathology, toxicogenetics, alcohol, post-mortem toxicology, new psychoactive substances, the latest legal issues and challenges as well as drugs and drug testing in sports, and the ethical, legal, and practical issues involved. Vivid pictures and diagrams throughout illustrate the pathological effects of drugs and the chemical make-up and breakdown of abused drugs. With unparalleled detail, the latest research and the highest level of authoritative medical scientific information, The Drug Abuse Handbook, Third Edition remains the definitive resource for drug related issues.

Fundamentals of Toxicologic Pathology, Third Edition, presents an essential overview of systems toxicologic pathology in a clear-and-concise manner. Toxicologic pathology integrates toxicology and its interdisciplinary components, including biochemistry, pharmacodynamics and risk assessment to pathology and its related disciplines, such as physiology, microbiology, immunology and molecular biology. This wholly revised and updated edition presents the newest information on the topic, and is an essential reference for advanced students, early career researchers, toxicologic pathologists, pharmaceutical scientists, medical pathologists and clinicians, and anyone involved with drug and device development. The book includes a new section describing the application of toxicologic pathology, such as diagnostic and forensic toxicologic pathology, environmental toxicologic pathology, experimental and industrial toxicologic pathology, and pathology issues in the design of toxicology studies. There are also new chapters on special senses (the eye and ear) and the biochemical and molecular basis of toxicity, among others.