Toxicological Profile For Polycyclic Aromatic Hydrocarbons Pahs Update

Provides information about polycyclic aromatic hydrocarbons & the human health effects of exposure. These chemicals have been found in sites identified for long-term Federal cleanup activities. The report includes a Public Health Statement which explains the toxicologic properties of polycyclic aromatic hydrocarbons in a nontechnical, Q&A format, & a review of the general health effects observed following exposure; a description of health effects; how the chemical can affect children; & information on its chemical & physical properties, production, use & disposal, potential for human exposure, analytical methods, & regulations & advisories.

Polycyclic aromatic hydrocarbons (PAHs), or polyarenes, are one of the largest and most structurally diverse class of organic molecules known. High percentages of polyarenes, representing a wide range of molecular sizes and structural types, are present in coal tars and petroleum residues. The major sources of PAHs are crude oil, coal and oil shale. The fuels produced from these fossil sources constitute the primary source of energy for the industrial nations of the world, and the petrochemicals from these raw materials are the basis of the synthetic fibre and plastics industries. PAHs are however, widespread pollutants and their impact on the environment and human health must be monitored and controlled. This book will review and assess our scientific understanding of the ecological exposure and effects PAHs have in different environments and habitats. It will accomplish this by taking the recipients of the pollution in the environment as starting points and working its way back through pathways to access what is required for our understanding of effects and rationale for control. Although this book will concentrate on ecological exposure of PAHs, the general impacts of PAHs on human populations will be touched upon. It is thought to be the first book to focus on the ecological aspects of PAHs.