EPA Clean Air Scientific Advisory Committee (CASAC)

Sulfur Oxides Integrated Science Assessment for Primary (Health-based) National Ambient Air Quality Standards (NAAQS) (First External Review Draft)

EPA Designated Federal Officer (DFO):Aaron Yeow
202-564-2050
yeow.aaron@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 sulfur oxides 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’s Office of Research and Development has requested CASAC review of a draft document entitled "Integrated Science Assessment for Sulfur Oxides - Health Criteria (External Review Draft - November 2015)."

Agency Charge . (PDF, 5 pp., 219,149 bytes)

Agency Review Document(s):

PDF for Preamble to the Integrated Science Assessments. (PDF, 40 pp., 957,865 bytes)

PDF for Integrated Science Assessment (ISA) for Sulfur Oxides – Health Criteria (External Review Draft - November 2015). (PDF, 694 pp., 10,741,030 bytes)