Reviewing National Ambient Air Quality Standards (NAAQS)
Sulfur Dioxide (SO2) Standards -
Documents from Reviews Completed Prior to 2010
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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 (PDF) (99pp, 3.5 MB) - September 1994
- 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 (PDF) (98pp, 4.8 MB) - December 1986
- Review of the National Ambient Air Quality Standards for Sulfur Oxides: Assessment of Scientific and Technical Information: OAQPS Staff Paper (PDF) (229pp, 10.6 MB) - September 1982
Federal Register Notices
- National Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide); Availability of Information (PDF) (4pp, 132k) - January 9, 2001
- National Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide); Intervention Level Program (PDF) (3pp, 30k) - May 5, 1998
- Primary National Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide) - Final Decision (PDF) (15pp, 133k) - May 22, 1996
- Primary SO2 NAAQS – Reproposal (PDF) (23pp, 1.0 MB) – November 15, 1994
- Secondary National Ambient Air Quality Standard for Sulfur Oxides (Sulfur Dioxide) – Final Decision (PDF) (9pp, 1.2 MB) – April 21, 1993
- National Ambient Air Quality Standards for Sulfur Oxides (Sulfur Dioxide) - Proposal (PDF) (27pp, 1.0 MB) - April 26, 1988
- NAAQS for Sulfur Dioxide: Final Decision (PDF) (18pp, 1.9 MB) – April 30, 1971
- NAAQS for Sulfur Dioxide: Proposal (PDF) (15pp, 1.9 MB) - January 30, 1971
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Issuance of Air Quality Criteria for Sulfur Oxides and Particulate Matter (PDF) (1pg, 163k) - February 11, 1969
CASAC Documents
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
- Air Quality Criteria for Sulfur Oxides (PDF) (182pp, 2.4 MB) – January 1969
- Air Quality Criteria for Sulfur Oxides (PDF) (237pp, 6.0 MB) – March 1967