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                    
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###### Environmental Protection Agency

          - 40 CFR Part 50
          - [EPA-HQ-OAR-2005-0172; FRL-8513-1]

# AGENCY:

 Environmental Protection Agency (EPA).

# ACTION:

 Notice of data availability. 

# 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                        3                        ) (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                        3                         Concentrations that Just Meet the Current and Alternative 8-Hour Daily Maximum Standards—Totals and Portions Attributable to O                        3                         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: richmond.harvey@epa.gov.*

# 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                    3                     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                    3                    -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                    3                     Concentrations that Just Meet the Current and Alternative 8-Hour Daily Maximum Standards—Totals and Portions Attributable to O                    3                     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