Wildlife Toxicity Assessments for Chemicals of Military Concern


Book Description

Wildlife Toxicity Assessments for Chemicals of Military Concern is a compendium of chemical-specific toxicity information with discussions on the rationale and development of Wildlife Toxicity Reference Values (TRVs) intended for use on terrestrial wildlife for risk assessment applications. Substances covered include military-related chemicals including explosives, propellants, pesticides and metals. Wildlife Toxicity Assessments for Chemicals of Military Concern is a much-needed resource designed to meet the needs of those seeking toxicological information for ecological risk assessment purposes. Each chapter targets a specific chemical and considers the current knowledge of the toxicological impacts of chemicals to terrestrial wildlife including mammalian, avian, amphibian and reptilian species. - Provides detailed information on how Wildlife Toxicity Values (TRVs) for military chemicals of concern are derived and evaluated. - Covers wildlife toxicity assessments of explosives, metals and environmental chemicals. - Compiles relevant information on the environmental effects of chemicals on wildlife in relation to public and environmental health.




Inhalation Toxicology


Book Description

The International Life Sciences Institute (ILSI), a nonprofit, public foundation, was established in 1978 to advance the sciences of nutrition, toxicology, and food safety. ILSI promotes the resolution of health and safety issues in these areas by sponsoring research, conferences, publications, and educational programs. Through ILSI's programs, scientists from government, academia, and industry unite their efforts to resolve issues of critical importance to the public. As part of its commitment to understanding and resolving health and safety issues, ILSI is pleased to sponsor this series of monographs that consolidates new scientific knowledge, defines research needs, and provides a background for the effective application of scientific advances in toxicology and food safety. Alex Malaspina President International Life Sciences Institute Contents Series Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi Part I. Approaches to Assessing the Toxicity of Airborne Toxicants Chapter 1. Standard-Setting as an Integrative Exercise: Alchemy, Juggling, or Science? . . . . . . . . . . . . . . . . . . . . . . . 1 D. v. Bates Chapter 2. Species Differences in Inhalation Toxicology: Variations in Exposure-Dose Relationships and Macrophage Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 J. D. Brain Chapter 3. Cell Populations of the Respiratory System: Interspecies Diversity in Composition, Distribution, and Morphology . . . . . . . . . . . . . . . . . . . . . . . . 25 e. G. Plopper, A. Mir, J. St. George, N. Tyler, A. Mariassy, D. Wilson, S. Nishio, D. Cranz, J. Heidsiek, and D. Hyde Chapter 4. Comparative Metabolic Basis for the Disposition and Toxic Effects of Inhaled Materials . . . . . . . . . . . . . . . . . 41 A. R. Dahl Part II. Methodological Issues in Designing and Conducting Studies with Laboratory Animals Chapter 5. Exposure Facilities and Aerosol Generation and Characterization for Inhalation Experiments. . . . . . . . . .




Inhalation Toxicology; the Design and Interpretation of Inhalation Studies and Their Use in Risk Assessment


Book Description

APPROACHES TO ASSESSING THE TOXICITY OF AIRBORNE TOXICANTS; STANDARD-SETTING AS AN INTEGRATIVE EXERCISE: ALCHEMY, JUGGLING, OR SCIENCE; SPECIES DIFFERENCES IN INHALATION TOXICOLOGY: VARIATIONS IN EXPOSURE-DOSE RELATIONSHIPS AND MACROPHAGE FUNCTION; CELL POPULATIONS OF THE RESPIRATORY SYSTEM: INTERSPECIES DIVERSITY IN COMPOSITION, DISTRIBUTION AND MORPHOLOGY; COMPARATIVE METABOLIC BASIS FOR THE DISPOSITION AND TOXIC EFFECTS OF INHALED MATERIALS; METHODOLOGICAL ISSUES IN DESIGNING AND CONDUCTING STUDIES WITH LABORATORY ANIMALS; EXPOSURE FACILITIES AND AEROSOL GENERATION AND CHARACTERIZATION FOR INHALATION EXPERIMENTS; DIFFERENT METHODS USED IN ACUTE AND SUBCHRONIC INHALATION STUDIES OF POTENTIAL LUNG IRRITANTS, WITH PARTICULAR ATTENTION TO LUNG FUNCTION; CHRONIC INHALATION TOXICITY STUDIES: PROTOCOLS AND PITFALLS; CARCINOGENICITY PROTOCOLS.




Methods in Inhalation Toxicology


Book Description

This book focuses on an important aspect of the methods in laboratory animal inhalation toxicology. It is targeted to students in toxicology programs and scientists contemplating performing inhalation studies.




Assessment of Inhalation Hazards


Book Description

The International Life Sciences Institute (ILSI), a nonprofit, public foundation, was established in 1978 to advance the sciences of nutrition, toxicology, and food safety. ILSI promotes the resolution of health and safety issues in these areas by sponsoring research, conferences, publications, and educational programs. Through ILSI's programs, scientists from government, academia, and industry unite their efforts to resolve issues of critical importance to the public. As part of its commitment to understanding and resolving health and safety issues, ILSI is pleased to sponsor this series of monographs that consolidates new scientific knowledge, defines research needs, and provides a background for the effective application of scientific advances in toxicology and food safety. Alex Malaspina President International Life Sciences Institute Contents Series Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . xiii . . . . . . . . . . . . . Part I. Integrative Approach to Assessing Human Health Risk: Two Contemporary Problems Chapter 1. Integrating Diverse Data Sets to Assess the Risks of Airborne Pollutants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 R.o. McClellan, R.G. Cuddihy, w.e. Griffith, and J. L. Mauderly Chapter 2. Risk Assessment for Radon Inhalation Based on Animal Exposure Data and Human Epidemiology . . . . . . . 23 . F. Steinhausler Part II. Types of Evidence: General Strengths and Weaknesses Section 1. Epidemiological Chapter 3. Inhalation Hazards: The Interpretation of Epidemiologic Evidence. . . . . . . . . . . . . . . . . . . . 39 . . . . . . . J.e. Bailar Chapter 4. Problems in Interpreting Epidemiological Data 49 P.N. Lee Section 2. Animal Chapter 5. Rodent Carcinogenicity Studies: Their Value and Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . 61 . . . . . . . . . .




How Tobacco Smoke Causes Disease


Book Description

This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.




Concepts In Inhalation Toxicology


Book Description

Recent developments have provided new data on the subject of inhalation toxicology, requiring an update of the previous edition of this popular text. Like the first, this second edition explains the basic concepts and quantitative approaches in inhalation toxicology, and it gives a comprehensive treatment of evaluations of respiratory responses to inhaled particles and gases. The author here explores new understanding of the role of cytokines in pulmonary inflammation and risk assessment. Immunologists, oncologists, respiratory specialists and students in those fields will find Concepts In Inhalation Toxicology to be essential to their practice.




Toxicological Risks of Selected Flame-Retardant Chemicals


Book Description

Ignition of upholstered furniture by small open flames from matches, cigarette lighters, and candles is one of the leading causes of residential-fire deaths in the United States. These fires accounted for about 16% of civilian fire deaths in 1996. On average, each year since 1990, about 90 deaths (primarily of children), 440 injuries, and property losses amounting to 50 million dollars have resulted from fires caused by the ignition of upholstered furniture by small open flames. Certain commercial seating products (such as aircraft and bus seats) are subject to flammability standards and sometimes incorporate FR-treated upholstery cover materials, but there is no federal-government requirement for residential upholstered furniture, and it is generally not treated with FR chemicals. It is estimated that less than 0.2% of all U.S. residential upholstery fabric is treated with flame-retardant (FR) chemicals. The Consumer Product Safety Act of 1972 created the U.S. Consumer Product Safety Commission (CPSC) as an independent federal regulatory agency whose mission is to protect the public from unreasonable risks of injury and death associated with consumer products. CPSC also administers the Flammable Fabrics Act, under which it regulates flammability hazards and the Federal Hazardous Substances Act (FHSA), which regulates hazardous substances including chemicals. In 1993, the National Association of State Fire Marshals petitioned CPSC to issue a performance-based flammability standard for upholstered furniture to reduce the risk of residential fires. The Commission granted that portion of the petition relating to small open flame ignition risks. In response to concerns regarding the safety of FR chemicals, Congress, in the fiscal year 1999 appropriations report for CPSC, requested that the National Research Council conduct an independent study of the health risks to consumers posed by exposure to FR chemicals that are likely to be used in residential upholstered furniture to meet a CPSC standard. The National Research Council assigned the project to the Committee on Toxicology (COT) of the Commission on Life Sciences' Board on Environmental Studies and Toxicology. COT convened the Subcommittee on Flame-Retardant Chemicals, which prepared this report. Subcommittee members were chosen for their recognized expertise in toxicology, pharmacology, epidemiology, chemistry, exposure assessment, risk assessment, and biostatistics. Toxicological Risks of Selected Flame-Retardant Chemicals is organized into 18 chapters and two appendices. Chapter 2 describes the risk assessment process used by the subcommittee in determining the risk associated with potential exposure to the various FR chemicals. Chapter 3 describes the method the subcommittee used to measure and estimate the intensity, frequency, extent, and duration of human exposure to FR chemicals. Chapters 4-19 provide the subcommittee's review and assessment of health risks posed by exposure to each of the 16 FR chemicals. Data gaps and research needs are provided at the end of these chapters.




Drinking Water and Health,


Book Description

The most recent volume in the Drinking Water and Health series contains the results of a two-part study on the toxicity of drinking water contaminants. The first part examines current practices in risk assessment, identifies new noncancerous toxic responses to chemicals found in drinking water, and discusses the use of pharmacokinetic data to estimate the delivered dose and response. The second part of the book provides risk assessments for 14 specific compounds, 9 presented here for the first time.




The History of Alternative Test Methods in Toxicology


Book Description

The History of Alternative Test Methods in Toxicology uses a chronological approach to demonstrate how the use of alternative methods has evolved from their conception as adjuncts to traditional animal toxicity tests to replacements for them. This volume in the History of Toxicology and Environmental Health series explores the history of alternative test development, validation, and use, with an emphasis on humanity and good science, in line with the Three Rs (Replacement,Reduction, Refinement) concept expounded by William Russell and Rex Burch in 1959 in their now classic volume, The Principles of Humane Experimental Technique. The book describes the historical development of technologies that have influenced the application of alternatives in toxicology and safety testing. These range from single cell monocultures to sophisticated, miniaturised and microfluidic organism-on-a-chip devices, and also include molecular modelling, chemoinformatics and QSAR analysis, and the use of stem cells, tissue engineering and hollow fibre bioreactors. This has been facilitated by the wider availability of human tissues, advances in tissue culture, analytical and diagnostic methods, increases in computational processing, capabilities, and a greater understanding of cell biology and molecular mechanisms of toxicity. These technological developments have enhanced the range and information content of the toxicity endpoints detected, and therefore the relevance of test systems and data interpretation, while new techniques for non-invasive diagnostic imaging and high resolution detection methods have permitted an increased role for human studies. Several key examples of how these technologies are being harnessed to meet 21st century safety assessment challenges are provided, including their deployment in integrated testing schemes in conjunction with kinetic modelling, and in specialized areas, such as inhalation toxicity studies. The History of Alternative Test Methods in Toxicology uses a chronological approach to demonstrate how the use of alternative methods has evolved from their conception as adjuncts to traditional animal toxicity tests to replacements for them. This volume in the History of Toxicology and Environmental Health series explores the history of alternative test development, validation, and use, with an emphasis on humanity and good science, in line with the Three Rs (Replacement, Reduction, Refinement) concept expounded by William Russell and Rex Burch in 1959 in their now-classic volume, The Principles of Humane Experimental Technique. The book describes the historical development of technologies that have influenced the application of alternatives in toxicology and safety testing. These range from single cell monocultures to sophisticated miniaturised and microfluidic organism-on-a-chip devices, and also include molecular modelling, chemoinformatics and QSAR analysis, and the use of stem cells, tissue engineering and hollow fibre bioreactors. This has been facilitated by the wider availability of human tissues, advances in tissue culture, analytical and diagnostic methods, increases in computational processing capabilities, and a greater understanding of cell biology and molecular mechanisms of toxicity. These technological developments have enhanced the range and information content of the toxicity endpoints detected, and therefore the relevance of test systems and data interpretation, while new techniques for non-invasive diagnostic imaging and high resolution detection methods have permitted an increased role for human studies. Several key examples of how these technologies are being harnessed to meet 21st century safety assessment challenges are provided, including their deployment in integrated testing schemes in conjunction with kinetic modelling, and in specialised areas, such as inhalation toxicity studies.