[Federal Register Volume 75, Number 38 (Friday, February 26, 2010)]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-4082]
ENVIRONMENTAL PROTECTION AGENCY
[FRL-9119-4; Docket ID No. EPA-HQ-ORD-2010-0047]
Development of a Relative Potency Factor (RPF) Approach for
Polycyclic Aromatic Hydrocarbon (PAH) Mixtures
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice of public comment period and listening session.
SUMMARY: EPA is announcing a 60-day public comment period and a public
listening session for the external review draft document titled,
``Development of a Relative Potency Factor (RPF) Approach for
Polycyclic Aromatic Hydrocarbon (PAH) Mixtures'' (EPA/635/R-08/012A).
The draft document was prepared by the National Center for
Environmental Assessment (NCEA) within the EPA's Office of Research and
Development (ORD). The public comment period and the EPA Science
Advisory Board (SAB) peer review meeting, which will be scheduled at a
later date and announced in the Federal Register, are separate
processes that provide opportunities for all interested parties to
comment on the document.
EPA intends to forward the public comments that are submitted in
accordance with this notice to the SAB peer review panel prior to the
meeting for their consideration. When finalizing the draft document,
EPA intends to consider any public comments that EPA receives in
accordance with this notice.
EPA is also announcing a listening session to be held on April 7,
2010, during the public comment period for this draft document. This
listening session is a step in EPA's revised IRIS process, announced on
May 21, 2009, for developing human health assessments for inclusion in
the IRIS database. The purpose of the listening session is to allow all
interested parties to present scientific and technical comments on
draft IRIS health assessments to EPA and other interested parties
during the public comment period and before the peer review meeting.
EPA welcomes the comments that will be provided to the Agency by the
listening session participants. The comments will be considered by the
Agency as it revises the draft document in response to the independent
SAB peer review and the public comments. All presentations submitted to
EPA according to the instructions below will become part of the
official public record.
EPA is releasing this draft document solely for the purpose of pre-
dissemination peer review under applicable information quality
guidelines. This document has not been formally disseminated by EPA. It
does not represent and should not be construed to represent any Agency
policy or determination.
DATES: The public comment period begins February 26, 2010, and ends
April 27, 2010. Comments should be in writing and must be received by
EPA by April 27, 2010.
The listening session on the draft document for PAH mixtures will
be held on April 7, 2010, beginning at 9 a.m. and ending at 4 p.m.,
Eastern Standard Time. If you would like to attend the listening
session, you should register by March 31, 2010. If you would like to
make a presentation at the listening session, you should register by
March 31, 2010, indicate that you wish to make oral comments at the
session, and indicate the length of your presentation. When you
register, please indicate if you will need audio-visual aid (e.g.,
laptop computer and slide projector). In general, each presentation
should be no more than 30 minutes. If, however, there are more requests
for presentations than the allotted time allows, then the time limit
for each presentation will be adjusted. A copy of the agenda for the
listening session will be available at the meeting. If no speakers have
registered by March 31, 2010, the listening session will be cancelled
and EPA will notify those registered of the cancellation.
Listening session participants who want EPA to share their comments
with the external peer reviewers should also submit written comments
during the public comment period using the detailed and established
procedures described in the SUPPLEMENTARY INFORMATION section of this
notice. Comments submitted to the docket prior to the end of the public
comment period will be submitted to the external peer reviewers and
considered by EPA in the disposition of public comments. All comments
received will be submitted to the docket, but comments received after
the public comment period closes will not be submitted to the external
peer reviewers and will only be considered by EPA if time permits.
ADDRESSES: The draft ``Development of a Relative Potency Factor (RPF)
Approach for Polycyclic Aromatic Hydrocarbon (PAH) Mixtures'' is
available primarily via the Internet on the NCEA home page under the
Recent Additions and Publications menus at http://www.epa.gov/ncea. A
limited number of paper copies are available from the Information
Management Team (Address: Information Management Team, National Center
for Environmental Assessment (Mail Code: 8601P), U.S. Environmental
Protection Agency, 1200 Pennsylvania Avenue, NW., Washington, DC 20460;
telephone: 703-347-8561; facsimile: 703-347-8691). If you are
requesting a paper copy, please provide your name, mailing address, and
the document title.
Comments may be submitted electronically via http://www.regulations.gov, by e-mail, by mail, by facsimile, or by hand
delivery/courier. Please follow the detailed instructions provided in
the SUPPLEMENTARY INFORMATION section of this notice.
The listening session on the draft PAH Mixtures document will be
held at the EPA offices at Two Potomac Yard (North Building), Room
7100, 2733 South Crystal Drive, Arlington, Virginia 22202. To attend or
give verbal comments at the listening session, register by March 31,
2010, by sending an e-mail to IRISListeningSession@epa.gov (subject
line: PAH Mixtures Listening Session), by calling Christine Ross at
703-347-8592; or by faxing a registration request to 703-347-8689.
Please reference the ``PAH Mixtures Listening Session'' and include
your name, title, affiliation, full address and contact information.
Please note that to gain entrance to this EPA building to attend the
meeting, attendees must have photo identification with them and must
register at the guard's desk in the lobby. The guard will retain your
photo identification and will provide you with a visitor's badge. At
the guard's desk, attendees should give the name Christine Ross and the
telephone number 703-347-8592 to the guard on duty. The guard will
contact Ms. Ross who will meet you in the reception area to escort you
to the meeting room. When you leave the building, please return your
visitor's badge to the guard and you will receive your photo
A teleconference line will also be available for registered
attendees/speakers. The teleconference number is 866-299-3188 and the
access code is 926-378-7897, followed by the pound sign ().
The teleconference line will be activated at 8:45 am, and you will be
asked to identify yourself and your affiliation at the beginning of the
Information on Services for Individuals with Disabilities: EPA
welcomes public attendance at the ``PAH Mixtures Listening Session''
and will make every effort to accommodate persons with disabilities.
For information on access or services for individuals with
disabilities, please contact Christine Ross by phone at 703-347-8592 or
by e-mail at IRISListeningSession@epa.gov. To request accommodation of
a disability, please contact Ms. Ross, preferably at least 10 days
prior to the meeting, to give EPA as much time as possible to process
FOR FURTHER INFORMATION CONTACT: For information on the public comment
period, please contact the Office of Environmental Information (OEI)
Docket (Mail Code: 2822T), U.S. Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington, DC 20460; telephone: 202-566-1752;
facsimile: 202-566-1753; or e-mail: ORD.Docket@epa.gov.
For information on the public listening session, please contact
Christine Ross, IRIS Staff, National Center for Environmental
Assessment (Mail Code: 8601P), U.S. Environmental Protection Agency,
1200 Pennsylvania Avenue, NW., Washington, DC 20460; telephone: 703-
347-8592; facsimile: 703-347-8689; or e-mail:
If you have questions about the document, please contact Lynn
National Center for Environmental Assessment (Mail Code: 8601P), U.S.
Environmental Protection Agency, 1200 Pennsylvania Avenue, NW.,
Washington, DC 20460; telephone: 703-347-8537; facsimile: 703-347-8689;
or e-mail: email@example.com.
I. Information About IRIS
IRIS is a database that contains potential adverse human health
effects information that may result from chronic (or lifetime) exposure
to specific chemical substances found in the environment. The database
(available on the Internet at http://www.epa.gov/iris) contains
qualitative and quantitative health effects information for more than
540 chemical substances that may be used to support the first two steps
(hazard identification and dose-response evaluation) of a risk
assessment process. When supported by available data, the database
provides oral reference doses (RfDs) and inhalation reference
concentrations (RfCs) for chronic health effects, and oral slope
factors and inhalation unit risks for carcinogenic effects. Combined
with specific exposure information, government and private entities can
use IRIS data to help characterize public health risks of chemical
substances in a site-specific situation and thereby support risk
management decisions designed to protect public health.
II. How To Submit Comments to the Docket at http://www.regulations.gov
Submit your comments, identified by Docket ID No. EPA-HQ-ORD-2010-
0047, by one of the following methods:
http://www.regulations.gov: Follow the on-line
instructions for submitting comments.
Mail: Office of Environmental Information (OEI) Docket
(Mail Code: 2822T), U.S. Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington, DC 20460. The telephone number is
202-566-1752. If you provide comments by mail, please submit one
unbound original with pages numbered consecutively, and three copies of
the comments. For attachments, provide an index, number pages
consecutively with the comments, and submit an unbound original and
Hand Delivery: The OEI Docket is located in the EPA
Headquarters Docket Center, EPA West Building, Room 3334, 1301
Constitution Ave., NW., Washington, DC. The EPA Docket Center's 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. Deliveries are only accepted during the
docket's normal hours of operation, and special arrangements should be
made for deliveries of boxed information. If you provide comments by
hand delivery, please submit one unbound original with pages numbered
consecutively, and three copies of the comments. For attachments,
provide an index, number pages consecutively with the comments, and
submit an unbound original and three copies.
EPA recommends that you include your name and other contact
information in the body of your comment and with any disk or CD-ROM you
submit. If EPA cannot read your comment and cannot contact you for
clarification, EPA may not be able to consider your comment.
Instructions: Direct your comments to Docket ID No. EPA-HQ-ORD-
2010-0047. Please ensure that your comments are submitted within the
specified comment period. Comments received after the closing date will
be marked ``late,'' and may only be considered if time permits. It is
EPA's policy to include all comments it receives in the public docket
without change and to make the comments available online at http://www.regulations.gov, including any personal information provided,
unless a comment includes information claimed to be Confidential
Business Information (CBI) or other information whose disclosure is
restricted by statute. Do not submit information that you consider to
be CBI or otherwise protected through http://www.regulations.gov or e-
mail. The http://www.regulations.gov Web site is an ``anonymous
access'' system, which means EPA will not know your identity or contact
information unless you provide it in the body of your comment. If you
send an e-mail comment directly to EPA without going through http://www.regulations.gov, your e-mail address will be automatically captured
and included as part of the comment that is placed in the public docket
and made available on the Internet. If you submit an electronic
comment, EPA recommends that you include your name and other contact
information in the body of your comment and with any disk or CD-ROM you
submit. If EPA cannot read your comment due to technical difficulties
and cannot contact you for clarification, EPA may not be able to
consider your comment. Electronic files should avoid the use of special
characters and any form of encryption and be free of any defects or
viruses. For additional information about EPA's public docket visit the
EPA Docket Center homepage at http://www.epa.gov/epahome/dockets.htm.
Docket: All documents in the docket are listed in the http://www.regulations.gov index. Although listed in the index, some
information is not publicly available, e.g., CBI or other information
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, will be publicly available only in hard copy.
Publicly available docket materials are available either electronically
in http://www.regulations.gov or in hard copy at the OEI Docket in the
EPA Headquarters Docket Center.
Dated: January 22, 2010.
Director, National Center for Environmental Assessment.
[FR Doc. 2010-4082 Filed 2-25-10; 8:45 am]
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