Integrated Science Assessment (ISA) for Sulfur Oxides – Health Criteria (Final Report)
Federal Register Notices
Contact
- Jee Young Kim
- by phone at: 919-541-4157
- by fax at: 919-541-2985
- by email at: kim.jee-young@epa.gov
- by fax at: 919-541-2985
Background
This concise synthesis of the most policy-relevant science forms the scientific foundation for the review of the primary (health-based) NAAQS for SOx . The primary NAAQS for SOx , with SO2 serving as the indicator, is set at 0.14 parts per million (ppm), averaged over a 24 h period, not to be exceeded more than once per year, and 0.030 ppm annual arithmetic mean. The ISA accurately reflects “the latest scientific knowledge useful in indicating the kind and extent of identifiable effects on public health which may be expected from the presence of [a] pollutant in ambient air” Clean Air Act, Section 108, 1: (2003) . Key information and judgments formerly contained in the Air Quality Criteria Document (AQCD) for SOx are incorporated in this assessment. Additional details of the pertinent scientific literature published since the last review, as well as selected older studies of particular interest, are included in a series of annexes. This ISA thus serves to update and revise the information available at the time of the previous review of the NAAQS for SOx in 1996.
History/Chronology
Sep 2007 | EPA releases the First External Review Draft for external peer review and public comment. |
Dec 2007 | EPA's Science Advisory Board (SAB) hosts a public meeting of the Clean Air Scientific Advisory Committee's (CASAC) Sulfur Oxides (SOx) Primary NAAQS Review Panel (Panel) to conduct a peer review of the report. |
May 2008 | EPA releases the Second External Review Draft for external peer review and public comment. |
Jul 2008 | EPA's Science Advisory Board (SAB) hosts a public meeting of the Clean Air Scientific Advisory Committee's (CASAC) Sulfur Oxides (SOx) Primary NAAQS Review Panel (Panel) to conduct a peer review of the second external draft report. |
Sep 2008 | EPA releases the final ISA for Sulfur Oxides (SOx) - Health Criteria. |
Next Steps
This is the final report.
Downloads/Related Links
Citation
U.S. EPA. Integrated Science Assessment (ISA) for Sulfur Oxides – Health Criteria (Final Report). EPA/600/R-08/047F, 2008.