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Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides: Risk and Exposure Assessment Planning Document
Citation:
Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides: Risk and Exposure Assessment Planning Document.
Impact/Purpose:
Provide opportunity for CASAC feedback on the EPA's plans for the risk and exposure assessment for the review of the primary national ambient air quality standard for sulfur oxides
Description:
The U.S. Environmental Protection Agency (EPA) is conducting a review of the air quality criteria and the primary (health-based) national ambient air quality standards (NAAQS) for sulfur oxides (SOx). The major phases of the process for reviewing NAAQS include the following: (1) planning, (2) science assessment, (3) risk and exposure assessment, and (4) policy assessment. As an initial step in the risk and exposure assessment phase, the EPA’s staff has considered the extent to which updated quantitative analyses of SO2 exposures and/or SO2-attributable health risks are warranted in the current review, based on the available scientific evidence and technical information. These considerations focus on the degree to which important uncertainties identified in quantitative analyses from the last review have been addressed by newly available evidence, tools, or information. The purpose of the REA planning document is to present staff's considerations and preliminary conclusions regarding potential updated quantitative analyses in the current review of the primary SO2 NAAQS.
URLs/Downloads:
Review of the Primary NAAQS for SO2 Planning Document - Final (PDF, NA pp, 2995 KB, about PDF)Peer Review Plan (PDF, NA pp, 34 KB, about PDF)
Primary NAAQS for Sulfur Oxides: Risk and Exposure Assessment Planning Document - Agency Response (PDF, NA pp, 214 KB, about PDF)
Consultation on the EPA’s Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides: Risk and Exposure Assessment Planning Document (External Review Draft – February 2017) (PDF, NA pp, 270 KB, about PDF)
Review of the Primary NAAQS for SO2 REA Planning Document