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Health Implications of Perchlorate Ingestion
  • Language: en
  • Pages: 276

Health Implications of Perchlorate Ingestion

Perchlorateâ€"a powerful oxidant used in solid rocket fuels by the military and aerospace industryâ€"has been detected in public drinking water supplies of over 11 million people at concentrations of at least 4 parts per billion (ppb). High doses of perchlorate can decrease thyroid hormone production by inhibiting the uptake of iodide by the thyroid. Thyroid hormones are critical for normal growth and development of the central nervous system of fetuses and infants. This report evaluates the potential health effects of perchlorate and the scientific underpinnings of the 2002 draft risk assessment issued by the U.S. Environmental Protection Agency (EPA). The report finds that the body c...

Toxicity-Pathway-Based Risk Assessment
  • Language: en
  • Pages: 134

Toxicity-Pathway-Based Risk Assessment

In 2007, the National Research Council envisioned a new paradigm in which biologically important perturbations in key toxicity pathways would be evaluated with new methods in molecular biology, bioinformatics, computational toxicology, and a comprehensive array of in vitro tests based primarily on human biology. Although some considered the vision too optimistic with respect to the promise of the new science, no one can deny that a revolution in toxicity testing is under way. New approaches are being developed, and data are being generated. As a result, the U.S. Environmental Protection Agency (EPA) expects a large influx of data that will need to be evaluated. EPA also is faced with tens of...

Risk Assessment for Chemicals in Drinking Water
  • Language: en
  • Pages: 392

Risk Assessment for Chemicals in Drinking Water

A comprehensive reference on state-of-the-art risk assessment methodologies for drinking water Risk Assessment for Chemicals in Drinking Water discusses the major steps and goals in risk assessments and suggests ways to improve the methodologies and accuracy, while consolidating up-to-date information on the current principles and practices in one authoritative reference. After an enlightening overview of risk assessment practices and regulatory guidelines, it: Includes descriptions of the use of variability analysis, exposure analysis, physiologically based pharmacokinetics, and modeling for both cancer and non-cancer endpoints Describes the practices of major organizations, including the U...

Scientific Review of the Proposed Risk Assessment Bulletin from the Office of Management and Budget
  • Language: en
  • Pages: 302

Scientific Review of the Proposed Risk Assessment Bulletin from the Office of Management and Budget

Risk assessments are often used by the federal government to estimate the risk the public may face from such things as exposure to a chemical or the potential failure of an engineered structure, and they underlie many regulatory decisions. Last January, the White House Office of Management and Budget (OMB) issued a draft bulletin for all federal agencies, which included a new definition of risk assessment and proposed standards aimed at improving federal risk assessments. This National Research Council report, written at the request of OMB, evaluates the draft bulletin and supports its overall goals of improving the quality of risk assessments. However, the report concludes that the draft bu...

Review of DOD's Approach to Deriving an Occupational Exposure Level for Trichloroethylene
  • Language: en
  • Pages: 77

Review of DOD's Approach to Deriving an Occupational Exposure Level for Trichloroethylene

Trichloroethylene (TCE) is a solvent that is used as a degreasing agent, a chemical intermediate in refrigerant manufacture, and a component of spot removers and adhesives. It is produced in mass quantities but creates dangerous vapors and is an environmental contaminant at many industrial and government facilities, including facilities run by the U.S. Department of Defense (DoD). It is important to determine the safe occupational exposure level (OEL) for the solvent in order to protect the health of workers who are exposed to its vapors. However, there are concerns that the current occupational standards insufficiently protect workers from these health threats. Review of DOD's Approach to D...

Hayes' Principles and Methods of Toxicology
  • Language: en
  • Pages: 2141

Hayes' Principles and Methods of Toxicology

  • Type: Book
  • -
  • Published: 2014-10-10
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  • Publisher: CRC Press

Hayes' Principles and Methods of Toxicology has long been established as a reliable reference to the concepts, methodologies, and assessments integral to toxicology. The new sixth edition has been revised and updated while maintaining the same high standards that have made this volume a benchmark resource in the field. With new authors and new chap

Environmental Health Perspectives
  • Language: en
  • Pages: 1566

Environmental Health Perspectives

  • Type: Book
  • -
  • Published: 2010
  • -
  • Publisher: Unknown

None

Public Health Reports
  • Language: en
  • Pages: 836

Public Health Reports

  • Type: Book
  • -
  • Published: 2009
  • -
  • Publisher: Unknown

None

Water Pollution Issues and Developments
  • Language: en
  • Pages: 298

Water Pollution Issues and Developments

Pollution is undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities so that the environment becomes harmful or unfit for living things; especially applicable to the contamination of soil, water, or the atmosphere by the discharge of harmful substances. In addition to the harm to living beings, both present or future and known or unknown, pollution cleanup and surveillance are enormous financial drains of the economies of the world. This book focuses on issues and developments critical for the field.

Hidden Costs of Energy
  • Language: en
  • Pages: 506

Hidden Costs of Energy

Despite the many benefits of energy, most of which are reflected in energy market prices, the production, distribution, and use of energy causes negative effects. Many of these negative effects are not reflected in energy market prices. When market failures like this occur, there may be a case for government interventions in the form of regulations, taxes, fees, tradable permits, or other instruments that will motivate recognition of these external or hidden costs. The Hidden Costs of Energy defines and evaluates key external costs and benefits that are associated with the production, distribution, and use of energy, but are not reflected in market prices. The damage estimates presented are ...