Sulfur Dioxide (SO2) Air Quality Standards - Documents Prior to Review Completed in 2010
Federal Register Notices
- National Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide); Availability of Information - January 9, 2001
- National Ambient Air Quality Standards for Sulfur Dioxide); Intervention Level Program - May 5, 1998
- Primary National Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide) - Final Decision - May 22, 1996
- Primary SO2 NAAQS - Reproposal - November 15, 1994 (PDF) (23 pp, 1 MB)
- Secondary NAAQS for Sulfur Oxides (Sulfur Dioxide) - Final Decision - April 21, 1993 (PDF) (9 pp, 1 MB)
- NAAQS for Sulfur Oxides (Sulfur Dioxide) - Proposal - April 26, 1988 (PDF) (27 pp, 1 MB)
- Secondary NAAQS for Sulfur Oxides: Final Decision - September 14, 1973 (PDF) (4 pp, 600 K)
- Secondary NAAQS for Sulfur Oxides: Proposal - May 7, 1973 (PDF) (2 pp, 200 K)
- NAAQS for Sulfur Dioxide: Final Decision - April 30, 1971 (PDF) (16 pp, 6 MB)
- NAAQS for Sulfur Dioxide: Proposal - January 30, 1971 (PDF) (13 pp, 2 MB)
- Issuance of Air Quality for Sulfur Oxides and Particulate Matter - February 11, 1969 (PDF) (1 pg, 167 K)
Criteria Documents
- Supplement to the Second Addendum (1986) to Air Quality Criteria for Particulate Matter and Sulfur Oxides (1982): Assessment of New Findings on Sulfur Dioxide Acute Exposure Health Effects in Asthmatic Individuals - August 1994
- Second Addendum to Air Quality Criteria for Particulate Matter and Sulfur Oxides (1982): Assessment of Newly Available Health Effects Information - December 1986
- Air Quality Criteria for Particulate Matter and Sulfur Oxides (Volumes I, II, and III) - December 1982
- Effects of Sulfur Oxides in the Atmosphere on Vegetation: Revised Chapter 5 for Air Quality Criteria for Sulfur Oxides - September 1973
- Air Quality Criteria for Sulfur Oxides - January 1969
- Air Quality Criteria for Sulfur Oxides - March 1967 (PDF) (237 pp, 6 MB)
Staff Papers
- Review of the National Ambient Air Quality Standards for Sulfur Oxides: Assessment of Scientific and Technical Information: Supplement to the 1986 OAQPS Staff Paper - September 1994 (PDF) (99 pp, 4 MB)
- Review of the National Ambient Air Quality Standards for Sulfur Oxides: Updated Assessment of Scientific and Technical Information: Addendum to the 1982 OAQPS Staff Paper - December 1986 (PDF) (98 pp, 5 MB)
- Review of the National Ambient Air Quality Standards for Sulfur Oxides: Assessment of Scientific and Technical Information: OAQPS Staff Paper - November 1982 (PDF) (229 pp, 11 MB)