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Particulate Matter Risk/Exposure Methods for Primary National Ambient Air Quality Standards (NAAQS) Review

EPA Designated Federal Officer (DFO):Holly Stallworth
202-564-2073
stallworth.holly@epa.gov

Responsible Committee/Panel:CASAC Particulate Matter Review Panel
A list of members can be found in the final report included in the Advisory Activity linked to this panel or committee.

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BACKGROUND.

EPA’s Office of Air and Radiation has requested CASAC advice on two planning documents entitled "Particulate Matter National Ambient Air Quality Standards: Scope and Methods Plan for Health Risk and Exposure Assessment" and "Particulate Matter National Ambient Air Quality Standards: Scope and Methods Plan for Urban Visibility Impact Assessment (February 2009). "

Under the Clean Air Act, EPA is required to carry out a periodic review and revision, as appropriate, of the air quality criteria and the primary and secondary standards for six criteria air pollutants, which include particulate matter. Primary standards set limits to protect public health, including the health of "sensitive" populations such as asthmatics, children, and the elderly. Secondary standards set limits to protect public welfare, including protection against decreased visibility, damage to animals, crops, vegetation, and buildings.


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