EPA Clean Air Scientific Advisory Committee (CASAC)

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

EPA Designated Federal Officer (DFO):Aaron Yeow
Responsible Committee/Panel:CASAC Lead Review Panel (2010-2013)

See EPA’s PDF page to learn more about PDF files.


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 plans to review two drafts 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, 5 pp., 43,438 bytes)

Agency Review Document(s):

PDF for Integrated Science Assessment for Lead (First External Review Draft - May 2011). (PDF, 1,100 pp., 19,856,097 bytes)