Environmental Protection Agency
The Environmental Protection Agency (EPA) is announcing the availability of two final documents titled, Risk and Exposure Assessment for the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides (REA) and Policy Assessment for the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides (PA). The indicator for the current standard is sulfur dioxide (SO<INF>2</INF>). The REA describes the quantitative analyses of SO<INF>2</INF> exposures and health risks in this NAAQS review. Building on the Integrated Science Assessment for Sulfur Oxides--Health Criteria (ISA), completed in December 2017, the PA serves to "bridge the gap" between the scientific information and the judgments required of the Administrator in determining whether to retain or revise the existing primary NAAQS for SO<INF>2.</INF>
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency [EPA-HQ-OAR-2013-0566; FRL-9977-81-OAR] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of availability. SUMMARY: The Environmental Protection Agency (EPA) is announcing the availability of two final documents titled, Risk and Exposure Assessment for the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides (REA) and Policy Assessment for the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides (PA). The indicator for the current standard is sulfur dioxide (SO 2 ). The REA describes the quantitative analyses of SO 2 exposures and health risks in this NAAQS review. Building on the Integrated Science Assessment for Sulfur Oxides—Health Criteria (ISA), completed in December 2017, the PA serves to “bridge the gap” between the scientific information and the judgments required of the Administrator in determining whether to retain or revise the existing primary NAAQS for SO 2. DATES: The REA and PA will be made available on or about May 9, 2018. ADDRESSES: These documents will be available primarily via the internet at https://www.epa.gov/​naaqs/​sulfur-dioxide-so2-primary-air-quality-standards . FOR FURTHER INFORMATION CONTACT: Dr. Nicole Hagan, Office of Air Quality Planning and Standards (Mail Code C504-06), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711; telephone number: 919-541-3153; fax number: 919-541-5315; email: hagan.nicole@e…
Other Federal Register documents from the same docket.
Review of the Primary National Ambient Air Quality Standards for Sulfur Oxides
Public Hearing for and Extension of Comment Period on Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides
Review of the Primary National Ambient Air Quality Standards for Sulfur Oxides
Extension of Comment Period on Draft Documents Related to the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides
Release of Draft Documents Related to the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides
Citation: 83 FR 22479
