Extrapolation of the Benzene Inhalation Unit Risk Estimate to the Oral Route of Exposure and IRIS Summary for Benzene

[Federal Register Volume 64, Number 91 (Wednesday, May 12, 1999)]
[Notices]
[Page 25502]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-12004]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-6341-5]


Extrapolation of the Benzene Inhalation Unit Risk Estimate to the 
Oral Route of Exposure and IRIS Summary for Benzene

AGENCY: Environmental Protection Agency.

ACTION: Notice of availability and public comment period.

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SUMMARY: The U. S. Environmental Protection Agency (EPA) is announcing 
a 30-day public comment period to review the draft documents entitled, 
Extrapolation of the Benzene Inhalation Unit Risk Estimate to the Oral 
Route of Exposure (NCEA-W-0517) and the IRIS [Integrated Risk 
Information System] Summary for Benzene. The documents were prepared by 
the EPA's National Center for Environmental Assessment-Washington 
Office (NCEA-W) of the Office of Research and Development. EPA will use 
comments and recommendations from the public to assist in revising the 
document.

DATES: The comment period begins May 12, 1999 and ends June 11, 1999.

ADDRESSES: The documents are available on the Internet at https://
www.epa.gov/ncea under the What's New and Publications menus. A limited 
number of paper copies are available from the Technical Information 
Staff (8623D), NCEA-W, telephone: 202-564-3261; facsimile; 202-565-
0050. If you are requesting a paper copy, please provide your name, 
mailing address, and the document titles, Extrapolation of the Benzene 
Inhalation Unit Risk Estimate to the Oral Route of Exposure (NCEA-W-
0517) and IRIS Summary for Benzene.
    Comments may be mailed to the Technical Information Staff (8623D), 
NCEA-W, U.S. Environmental Protection Agency, 401 M Street, S.W., 
Washington, DC 20460, or delivered to the Technical Information Staff 
at 808 17th Street, N.W., 5th Floor, Washington, DC 20074; telephone 
number 202-564-3261; facsimile: 202-565-0050. Comments should be in 
writing and must be postmarked by June 11, 1999. Please submit one 
unbound original with pages numbered consecutively, and three copies. 
For attachments, provide an index, number pages consecutively with the 
comments, and submit an unbound original and three copies. Electronic 
comments may be sent to benzene.new@epa.gov.
    Please note that all technical comments received in response to 
this notice will be placed in a public record. For that reason, 
commentors should not submit personal information (such as medical data 
or home address), Confidential Business Information, or information 
protected by copyright. Due to limited resources, acknowledgments will 
not be sent.

FOR FURTHER INFORMATION CONTACT: For information on the public comment 
period, contact Bob Sonawane (202-564-3292) or David Bayliss, (202-564-
3294); mailing address: NCEA-W (8623D), U. S. Environmental Protection 
Agency, 401 M. Street, S.W., Washington, DC 20460; facsimile: 202-565-
0078; e-mail: benzene.new@epa.gov.

SUPPLEMENTARY INFORMATION: The National Center for Environmental 
Assessment-Washington Division, Office of Research and Development, 
prepared this document on the Extrapolation of the Benzene Inhalation 
Unit Risk Estimate to the Oral Route of Exposure. This document will 
serve as a source for updating the oral cancer unit risk estimate for 
benzene in the Integrated Risk Information System (IRIS).

    Dated: April 29, 1999.
Arthur Payne,
Acting Director, National Center for Environmental Assessment.
[FR Doc. 99-12004 Filed 5-11-99; 8:45 am]
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