Overview

New national ambient air quality standards for airborne particles smaller than 2.5 micrometres were issued by the US Environmental Protection Agency (EPA) amidst scientific uncertainty and controversy. This, the first of four books, offers a conceptual framework for an integrated national programme of particulate-matter research, identifies the ten 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. Such research will be an investment in publuc health and a means to ensure that future resources spent on control technology and regulatory compliance will have a reasonable probability of success.

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9780309060943

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Committee on Research Priorities for Airborne Particulate Matter, National Research Council

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