Daily Rules, Proposed Rules, and Notices of the Federal Government
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Under section 108(a) of the Clean Air Act (CAA), the Administrator identifies and lists certain pollutants which “cause or contribute to air pollution which may reasonably be anticipated to endanger public health or welfare.” The EPA then issues air quality criteria for these listed pollutants, which are commonly referred to as “criteria pollutants.” The air quality criteria are to “accurately reflect the latest scientific knowledge useful in indicating the kind and extent of all identifiable effects on public health or welfare which may be expected from the presence of [a] pollutant in the ambient air, in varying quantities.” Under section 109 of the CAA, EPA establishes primary (health-based) and secondary (welfare-based) National Ambient Air Quality Standards (NAAQS) for pollutants for which air quality criteria are issued. Section
As part of EPA's review of the primary and secondary ozone (O
On July 16, 2012 EPA made available the first draft documents
On August 15, EPA made available updates to the first draft Health and Welfare REAs, along with several technical memos and appendices. Updates to the Health REA include Chapter 6 which describes risk analyses based on application of results from human clinical studies, an updated Chapter 9 which incorporates the findings from Chapter 6, and several corrections to other chapters, including corrected table numbers in Chapter 5, and corrected references in several locations. Updates to the Welfare REA include additional analyses described in Chapter 6 which provide estimates of damages from O
In addition, on August 15, 2012 EPA made available the first draft document titled
The EPA is soliciting advice and recommendations from the CASAC by means of a review of these draft documents at an upcoming public meeting of the CASAC that will be held September 11-13, 2012. Information about these public meetings, including the dates and locations, was published in a separate notice in the
The draft documents briefly described above do not represent and should not be construed to represent any final EPA policy, viewpoint, or determination. The EPA will consider any public comments submitted in response to this notice when revising the documents.