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Comparison of NAAQS RIA and Risk Assessments

This article compares the NAAQS Risk Assessment and the NAAQS RIA in terms of their purposes, methodologies used, and the balance between costs and benefits. It provides a detailed analysis of the methods used for the 2006 PM2.5 NAAQS rulemaking.

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Comparison of NAAQS RIA and Risk Assessments

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  1. Comparison of NAAQS RIA and Risk Assessments - Bryan Hubbell

  2. Purposes • NAAQS Risk Assessment: • intended to provide quantitative estimates of the risk to public health associated with existing air quality levels and with air quality levels that would occur if current and alternative standards were met. • intended to assist the Administrator in selecting primary standards that will protect the public health with an adequate margin of safety, recognizing that such standards will not be risk-free. • a premium is placed on reducing the level of uncertainty in the quantitative estimates. • NAAQS RIA: • Intended to provide a comprehensive assessment of costs and benefits, both to health and welfare, of illustrative strategies to attain alternative standards. • Required by E.O. 12866, but the Clean Air Act prohibits EPA from considering costs in setting or revising any national air quality standard. • In these benefit-cost analyses, a balance between comprehensiveness and precision is sought, because of the direct comparison between costs and benefits.

  3. Detailed Comparison of Risk and Benefits Analysis Methods for the 2006 PM2.5 NAAQS Rulemaking

  4. Detailed Comparison of Risk and Benefits Analysis Methods for the 2006 PM2.5 NAAQS Rulemaking (Continued)

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