[Federal Register Volume 73, Number 3 (Friday, January 4, 2008)]
[Proposed Rules]
[Page 836]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 07-6287]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 50

[EPA-HQ-OAR-2005-0172; FRL-8513-1]


Availability of Additional Information Related to the Review of 
the National Ambient Air Quality Standards for Ozone

AGENCY:  Environmental Protection Agency (EPA).

ACTION:  Notice of data availability.

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SUMMARY:  The EPA is providing notice that it has placed in the docket 
for the review of the national ambient air quality standards (NAAQS) 
for ozone (O<INF>3</INF>) (Docket No. EPA-HQ-OAR-2005-0172) additional 
information relevant to the rulemaking proposing revisions to those 
standards. See 72 FR 37818, July 11, 2007. Specifically, this notice 
announces the availability of a memorandum from Abt Associates, Inc. 
dated November 27, 2007. The subject of the memo is: ``Additional 
Tables: Non-Accidental Mortality and Lung Function Responses Associated 
with O<INF>3</INF> Concentrations that Just Meet the Current and 
Alternative 8-Hour Daily Maximum Standards--Totals and Portions 
Attributable to O<INF>3</INF> Within 0.1 ppm Ranges, Based on 2002 and 
2004 Air Quality Data.'' The docket number for this memo is EPA-HQ-OAR-
2005-0172-6942.

DATES:  The memorandum was placed in the Ozone NAAQS docket on December 
17, 2007.

FOR FURTHER INFORMATION CONTACT:  Mr. Harvey Richmond, Office of Air 
Quality Planning and Standards (C-504-06), U.S. Environmental 
Protection Agency, Research Triangle Park, NC 27711: telephone: 919-
541-5271; e-mail: <a href="/cdn-cgi/l/email-protection#9be9f2f8f3f6f4f5ffb5f3fae9edfee2dbfeebfab5fcf4ed"><span class="__cf_email__" data-cfemail="fb899298939694959fd5939a898d9e82bb9e8b9ad59c948d">[email protected]</span></a>.

SUPPLEMENTARY INFORMATION:

A. Background

    On July 11, 2007, EPA published a proposed rule to make revisions 
to the primary and secondary NAAQS for ozone to provide requisite 
protection of public health and welfare (72 FR 37818). A Technical 
Support Document (TSD) was completed in July 2007 by Abt Associates, 
Inc. entitled ``Ozone Health Risk Assessment for Selected Urban 
Areas.'' This TSD is docket item EPA-HQ-OAR-2005-0172-6794. Since 
completion of the TSD, Abt Associates, Inc. has prepared an additional 
analysis to show the non-accidental mortality and lung function risk 
associated with each 0.01 ppm O<INF>3</INF> concentration or exposure 
interval for air quality simulating just meeting the current and 
several alternative standards based on 2002 and 2004 air quality data. 
The total O<INF>3</INF>-related risk for non-accidental mortality and 
specific lung function responses are also presented in the tables in 
this memo and are the same as reported in the July 2007 TSD.

B. How Can I Get a Copy of This Document?

    1. Docket. EPA has established a docket for this action under 
Docket ID No. EPA-HQ-OAR-2005-0172. The document entitled ``Additional 
Tables: Non-Accidental Mortality and Lung Function Responses Associated 
with O<INF>3</INF> Concentrations that Just Meet the Current and 
Alternative 8-Hour Daily Maximum Standards--Totals and Portions 
Attributable to O<INF>3</INF> Within 0.1 ppm Ranges, Based on 2002 and 
2004 Air Quality Data'' has been placed in this docket as docket item 
EPA-HQ-OAR-2005-0172-6942. Publicly available docket materials are 
available either electronically through http://www.regulations.gov or 
in hard copy at the Air and Radiation Docket and Information Center, 
EPA/DC, Room 3334, 1301 Constitution Ave., NW., Washington, DC. The EPA 
Docket Center Public Reading Room is open from 8:30 a.m. to 4:30 p.m., 
Monday through Friday, excluding legal holidays. The telephone number 
for the Public Reading Room is (202) 566-1744 and the telephone number 
for the Air and Radiation.

List of Subjects in 40 CFR Part 50

    Environmental protection, Air pollution control, Carbon monoxide, 
Lead, Nitrogen dioxide, Ozone, Particulate matter, Sulfur oxides.

    Dated: December 21, 2007.
Peter Tsirigotis,
Acting Director, Office of Air Quality Planning and Standards.
[FR Doc. 07-6287 Filed 1-3-08; 8:45 am]
BILLING CODE 6560-50-M


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