Memoranda Associated with the Second External Review Draft of Health Risk and Exposure Assessments from the Ozone NAAQS Review Completed in 2015

Memoranda were developed to describe revisions to some aspects of the second external review draft of the Health Risk and Exposure Assessment in the ozone national ambient air quality standards (NAAQS) review that was completed in 2015.

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• Request for Revised Ozone HREA Chapter 7 Appendix Tables, May 2014 memo (pdf) (430.79 KB)
  Attached to this memorandum are all of the revised appendix tables that support the updated results provided in the above mentioned technical memorandum; these revised appendix tables correspond numerically to the Chapter 7 appendix tables found in the Health Risk and Exposure Assessment for Ozone, Second External Review Draft (second draft ozone HREA).
• Corrections to Estimates of Epidemiology-based Mortality and Morbidity Risks Presented in the Health Risk and Exposure Assessment for Ozone, Second External Review Draft, April 2014 memo (pdf) (725.53 KB)
• Response to Comments Regarding the Potential Use of a Threshold Model in Estimating the Mortality Risks from Long-term Exposure to Ozone in the Health Risk and Exposure Assessment for Ozone, Second External Review Draft, April 2014 memo (pdf) (233.39 KB)
• Correction to errors in Appendix 7A and Table 8-1 of the Health Risk and Exposure Assessment for Ozone, Second External Review Draft, March 2014 memo (pdf) (636.83 KB)