EPA Clean Air Scientific Advisory Committee (CASAC)

Sulfur Oxides Integrated Plan for National Ambient Air Quality Standards (NAAQS)

EPA Designated Federal Officer (DFO):Diana Wong
202-564-2049
wong.diana-m@epa.gov
Responsible Committee/Panel:CASAC Sulfur Oxides Panel

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


BACKGROUND
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 sulfur oxides. EPA is currently reviewing the primary (health-based) NAAQS for sulfur dioxide (SO2) as an indicator for health effects caused by the presence of oxides of sulfur in the ambient air. Primary standards set limits to protect public health, including the health of "sensitive" populations such as asthmatics, children, and the elderly.

As part of the NAAQS review process, EPA has requested CASAC review of their "Integrated Review Plan for the Primary National Ambient Air Quality Standard for Sulfur Dioxide - External Review Draft (March 2014)."

Agency Charge . (PDF, 4 pp., 33,131 bytes)

Agency Review Document(s):

PDF for Integrated Review Plan for the Primary National Ambient Air Quality Standard for Sulfur Dioxide - External Review Draft (March 2014). (PDF, 77 pp., 459,939 bytes)