EPA Clean Air Scientific Advisory Committee (CASAC)

Lead Integrated Science Assessment (Second External Review Draft) for National Ambient Air Quality Standards Review

EPA Designated Federal Officer (DFO):Aaron Yeow
202-564-2050
yeow.aaron@epa.gov
Responsible Committee/Panel:CASAC Lead Review Panel (2010-2013)

BACKGROUND.

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EPA’s Office of Research and Development has requested CASAC peer review of its draft Integrated Science Assessment intended to provide a synthesis and evaluation of science relevent for revising the primary (health-based) and secondary (welfare-based) standards for the national ambient air quality standards for lead. The CASAC previously reviewed the first external review draft of the Agency's Integrated Science Assessment.

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 lead. 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.


Agency Charge . (PDF, 4 pp., 632,985 bytes)

Agency Review Document(s):

PDF for Integrated Science Assessment for Lead (Second External Review Draft - February 2012). (PDF, 1,467 pp., 21,258,470 bytes)