Description

New National Ambient Air Quality Standards for airborne particles smaller than 2.5 micrometers, called PM2.5, were issued by the U.S. Environmental Protection Agency (EPA) amidst scientific uncertainty and controversy. In response to a request from Congress, Research Priorities for Airborne Particulate Matter, the first of four books in a series, offers a conceptual framework for an integrated national program of particulate-matter research, identifies the 10 most critical research needs linked to key policy-related scientific uncertainties, and describes the recommended timing and estimated costs of such research.

The committee concludes that EPA should devote more resources to investigating the relationships between fixed-site outdoor monitoring data and actual human breathing-zone exposures to ambient particulate matter and to identifying the most biologically important constituents and characteristics of particulate matter through toxicological studies. The recommended research activities are critical to determining actual exposures of human subpopulations most susceptible to harm from the most hazardous constituents of particulate matter. Future research will be an investment in public health and a means to ensure that resources spent on control technology and regulatory compliance will have a reasonable probability of success.

Reviews

"It spells out a 13-year, $440 million research program, with the emphasis on data needed prior to the next scheduled review of the standards in 2002...The NRC panel recommends that research be stepped up on determining which particles are most likely to be harmful, the processes by which they cause damage and the levels of exposure people receive." National Research Council

Authoring Organizations

• Board on Environmental Studies and Toxicology (BEST)
• Commission on Life Sciences (CLS)
• Commission on Geosciences, Environment and Resources (CGER)
• Earth and Life Studies (DELS)
• More Titles from BEST
• More Titles from CLS
• More Titles from CGER
• More Titles from DELS

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