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


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)."

On this page:

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


Panel Formation

Nominations of Experts:


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Public Meetings and/or Teleconferences

Meeting DateTitle
04/06/2016 to 04/06/2016Public Teleconference of the Chartered Clean Air Scientific Advisory Committee (CASAC) and the CASAC Sulfur Oxides Panel
01/27/2016 to 01/28/2016Public Meeting of the Clean Air Scientific Advisory Committee (CASAC) Sulfur Oxides Panel

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