Sulfur Dioxide (SO2) Standards - Risk and Exposure Assessments from Current Review

The quantitative risk and exposure assessments inform the EPA's review of the NAAQS.

• Risk and Exposure Assessment for the Review of the NAAQS for SOx (pdf) (20.41 MB, 05/09/2018)
• Risk and Exposure Assessment for the Review of the NAAQS for SOx, External Review Draft (pdf) (14.2 MB, 08/24/2017)
• Memorandum Regarding CASAC Request for data associated with Appendix D of the draft REA (pdf) (8.1 MB)