Toxicity Testing in the 21st Century

Toxicity Testing in the 21st Century PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309109922
Category : Nature
Languages : en
Pages : 217

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Book Description
Advances in molecular biology and toxicology are paving the way for major improvements in the evaluation of the hazards posed by the large number of chemicals found at low levels in the environment. The National Research Council was asked by the U.S. Environmental Protection Agency to review the state of the science and create a far-reaching vision for the future of toxicity testing. The book finds that developing, improving, and validating new laboratory tools based on recent scientific advances could significantly improve our ability to understand the hazards and risks posed by chemicals. This new knowledge would lead to much more informed environmental regulations and dramatically reduce the need for animal testing because the new tests would be based on human cells and cell components. Substantial scientific efforts and resources will be required to leverage these new technologies to realize the vision, but the result will be a more efficient, informative and less costly system for assessing the hazards posed by industrial chemicals and pesticides.

Toxicity Testing in the 21st Century

Toxicity Testing in the 21st Century PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309109922
Category : Nature
Languages : en
Pages : 217

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Book Description
Advances in molecular biology and toxicology are paving the way for major improvements in the evaluation of the hazards posed by the large number of chemicals found at low levels in the environment. The National Research Council was asked by the U.S. Environmental Protection Agency to review the state of the science and create a far-reaching vision for the future of toxicity testing. The book finds that developing, improving, and validating new laboratory tools based on recent scientific advances could significantly improve our ability to understand the hazards and risks posed by chemicals. This new knowledge would lead to much more informed environmental regulations and dramatically reduce the need for animal testing because the new tests would be based on human cells and cell components. Substantial scientific efforts and resources will be required to leverage these new technologies to realize the vision, but the result will be a more efficient, informative and less costly system for assessing the hazards posed by industrial chemicals and pesticides.

Toxicity Testing for Assessment of Environmental Agents

Toxicity Testing for Assessment of Environmental Agents PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309164869
Category : Nature
Languages : en
Pages : 270

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Book Description
Toxicity testing in laboratory animals provides much of the information used by the Environmental Protection Agency (EPA) to assess the hazards and risks associated with exposure to environmental agents that might harm public health or the environment. The data are used to establish maximum acceptable concentrations of environmental agents in drinking water, set permissible limits of exposure of workers, define labeling requirements, establish tolerances for pesticides residues on food, and set other kinds of limits on the basis of risk assessment. Because the number of regulations that require toxicity testing is growing, EPA called for a comprehensive review of established and emerging toxicity-testing methods and strategies. This interim report reviews current toxicity-testing methods and strategies and near-term improvements in toxicity-testing approaches proposed by EPA and others. It identifies several recurring themes and questions in the various reports reviewed. The final report will present a long-range vision and strategic plan to advance the practices of toxicity testing and human health assessment of environmental contaminants.

Pesticides in the Diets of Infants and Children

Pesticides in the Diets of Infants and Children PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309048753
Category : Science
Languages : en
Pages : 402

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Book Description
Many of the pesticides applied to food crops in this country are present in foods and may pose risks to human health. Current regulations are intended to protect the health of the general population by controlling pesticide use. This book explores whether the present regulatory approaches adequately protect infants and children, who may differ from adults in susceptibility and in dietary exposures to pesticide residues. The committee focuses on four major areas: Susceptibility: Are children more susceptible or less susceptible than adults to the effects of dietary exposure to pesticides? Exposure: What foods do infants and children eat, and which pesticides and how much of them are present in those foods? Is the current information on consumption and residues adequate to estimate exposure? Toxicity: Are toxicity tests in laboratory animals adequate to predict toxicity in human infants and children? Do the extent and type of toxicity of some chemicals vary by species and by age? Assessing risk: How is dietary exposure to pesticide residues associated with response? How can laboratory data on lifetime exposures of animals be used to derive meaningful estimates of risk to children? Does risk accumulate more rapidly during the early years of life? This book will be of interest to policymakers, administrators of research in the public and private sectors, toxicologists, pediatricians and other health professionals, and the pesticide industry.

Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms

Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms PDF Author:
Publisher:
ISBN:
Category : Effluent quality
Languages : en
Pages : 380

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Book Description


Methods for Acute Toxicity Tests with Fish, Macroinvertebrates, and Amphibians

Methods for Acute Toxicity Tests with Fish, Macroinvertebrates, and Amphibians PDF Author: Committee on Methods for Toxicity Tests with Aquatic Organisms
Publisher:
ISBN:
Category : Aquatic animals
Languages : en
Pages : 82

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Book Description


Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms

Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms PDF Author:
Publisher: DIANE Publishing
ISBN: 1428905375
Category : Water quality biological assessment
Languages : en
Pages : 275

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Book Description


Handbook of Acute Toxicity of Chemicals to Fish and Aquatic Invertebrates

Handbook of Acute Toxicity of Chemicals to Fish and Aquatic Invertebrates PDF Author: W. Waynon Johnson
Publisher:
ISBN:
Category : Acute toxicity testing
Languages : en
Pages : 106

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Book Description


Fundamentals Of Aquatic Toxicology

Fundamentals Of Aquatic Toxicology PDF Author: Gary M. Rand
Publisher: CRC Press
ISBN: 100016294X
Category : Science
Languages : en
Pages : 1152

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Book Description
This text is divided into three parts. The first part describes basic toxicological concepts and methodologies used in aquatic toxicity testing, including the philosophies underlying testing strategies now required to meet and support regulatory standards. The second part of the book discusses various factors that affect transport, transformation, ultimate distribution, and accumulation of chemicals in the aquatic environment, along with the use of modelling to predict fate.; The final section of the book reviews types of effects or endpoints evaluated in field studies and the use of structure-activity relationships in aquatic toxicology to predict biological activity and physio-chemical properties of a chemical. This section also contains an extensive background of environmental legislation in the USA and within the European Community, and an introduction to hazard/risk assessment with case studies.

An Introduction to Aquatic Toxicology

An Introduction to Aquatic Toxicology PDF Author: Mikko Nikinmaa
Publisher: Elsevier
ISBN: 0124115810
Category : Science
Languages : en
Pages : 253

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Book Description
An Introduction to Aquatic Toxicology is an introductory reference for all aspects of toxicology pertaining to aquatic environments. As water sources diminish, the need to understand the effects that contaminants may have on aquatic organisms and ecosystems increases in importance. This book will provide you with a solid understanding of aquatic toxicology, its past, its cutting-edge present and its likely future. An Introduction to Aquatic Toxicology will introduce you to the global issue of aquatic contamination, detailing the major sources of contamination, from where they originate, and their effects on aquatic organisms and their environment. State-of-the-art toxicological topics covered include nanotoxicology, toxicogenomics, bioinformatics, transcriptomics, metabolomics, as well as water management and the toxicological effects of major environmental issues such as algal blooms, climate change and ocean acidification. This book is intended for anyone who wants to know more about the impact of toxicants on aquatic organisms and ecosystems, or to keep up to date with recent and future developments in the field. - Provides with the latest perspectives on the impacts of toxicants on aquatic environments, such as nanotoxicology, toxicogenomics, ocean acidification and eutrophication - Offers a complete overview, beginning with the origins of aquatic toxicology and concluding with potential future challenges - Includes guidance on testing methods and a glossary of aquatic toxicology terms

Toxicity and Biodegradation Testing

Toxicity and Biodegradation Testing PDF Author: Ederio Dino Bidoia
Publisher: Humana Press
ISBN: 9781493974245
Category : Medical
Languages : en
Pages : 397

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Book Description
This volume presents a broad compendium of techniques used in biodegradation and toxicological research. Through both legacy and up-to-date approaches to practical methodologies with proven results, the book examines the role and applications of analytical biodegradation quantification as it applies to the environmental sciences, particularly in the range of byproducts that are usually linked to toxicology, and the test organisms most often used in toxicity testing. Topics include scientific and technical feasibility studies, contaminant impacts evaluation, study design and analytical techniques, key methodologies required to prepare the biodegradation and toxicology protocols, as well as the handling of microbial communities related to such processes. Written for the Methods in Pharmacology and Toxicology series, chapters deal with a critical discussion of laboratory scale experiments, as well as full scale in situ and ex situ apparatus, with each chapter containing both a discursive section along with a detailed methods section. Detailed and authoritative, Toxicity and Biodegradation Testing is primarily focused toward the environmental sciences researcher, while the range of techniques also provides an introduction to biodegradation and toxicology methods for researchers outside of the field.