[Federal Register Volume 73, Number 81 (Friday, April 25, 2008)]
[Notices]
[Pages 22363-22365]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E8-9132]
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ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OAR-2006-0922; FRL-8558-8]
Draft Risk and Exposure Assessment Reports for Nitrogen Dioxide
(NO2)
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice of extension of comment period.
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SUMMARY: The EPA is announcing an extension of the public comment
period on the Draft Risk and Exposure Assessment Reports for Nitrogen
Dioxide (NO2) (73 FR 20045; April 14, 2008). The EPA is extending the
comment period that originally ends on May 1, 2008. The extended
comment period will close on May 30, 2008. The EPA is extending the
comment period to provide stakeholders and the public with adequate
time to conduct appropriate analysis and prepare meaningful comments.
DATES: Comments on the above reports must be received on or before May
30, 2008.
ADDRESSES: Submit your comments, identified by Docket ID No. EPA-HQ-
OAR-2006-0922, by one of the following methods:
http://www.regulations.gov: Follow the on-line
instructions for submitting comments.
E-mail: Comments may be sent by electronic mail (e-mail)
to [email protected], Attention Docket ID No. EPA-HQ-OAR-2006-
0922.
Fax: Fax your comments to 202-566-9744, Attention Docket
ID. No. EPA-HQ-OAR-2006-0922.
[[Page 22364]]
Mail: Send your comments to: Air and Radiation Docket and
Information Center, Environmental Protection Agency, Mailcode: 2822T,
1200 Pennsylvania Ave., NW., Washington, DC 20460, Attention Docket ID
No. EPA-HQ-OAR-2006-0922.
Hand Delivery or Courier: Deliver your comments to: EPA
Docket Center, 1301 Constitution Ave., NW., Room 3334, Washington, DC.
Such deliveries are only accepted during the Docket's normal hours of
operation, and special arrangements should be made for deliveries of
boxed information.
Instructions: Direct your comments to Docket ID No. EPA-HQ-OAR-
2006-0922. The EPA's policy is that all comments received will be
included in the public docket without change and may be made available
online at http://www.regulations.gov, including any personal
information provided, unless the 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, 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 Air Docket in the
EPA Docket Center, EPA West, Room 3334, 1301 Constitution Ave., NW.,
Washington, DC. This Docket Facility is open from 8:30 a.m. to 4:30
p.m. Monday through Friday, excluding legal holidays. The Docket
telephone number is 202-566-1742; fax 202-566-9744.
FOR FURTHER INFORMATION CONTACT: Dr. Scott Jenkins, Office of Air
Quality Planning and Standards (Mailcode C504-06), U.S. Environmental
Protection Agency, Research Triangle Park, NC 27711; e-mail:
[email protected]; telephone: 919-541-1167; fax: 919-541-0237.
General Information
A. What Should I Consider as I Prepare My Comments for EPA?
1. Submitting CBI. Do not submit this information to EPA through
http://www.regulations.gov or e-mail. Clearly mark the part or all of
the information that you claim to be CBI. For CBI information in a disk
or CD-ROM that you mail to EPA, mark the outside of the disk or CD-ROM
as CBI and then identify electronically within the disk or CD-ROM the
specific information that is claimed as CBI. In addition to one
complete version of the comment that includes information claimed as
CBI, a copy of the comment that does not contain the information
claimed as CBI must be submitted for inclusion in the public docket.
Information so marked will not be disclosed except in accordance with
procedures set forth in 40 CFR part 2.
2. Tips for Preparing Your Comments. When submitting comments,
remember to:
Identify the rulemaking by docket number and other
identifying information (subject heading, Federal Register date and
page number).
Follow directions--The agency may ask you to respond to
specific questions or organize comments by referencing a Code of
Federal Regulations (CFR) part or section number.
Explain why you agree or disagree; suggest alternatives
and substitute language for your requested changes.
Describe any assumptions and provide any technical
information and/or data that you used.
If you estimate potential costs or burdens, explain how
you arrived at your estimate in sufficient detail to allow for it to be
reproduced.
Provide specific examples to illustrate your concerns, and
suggest alternatives.
Explain your views as clearly as possible, avoiding the
use of profanity or personal threats.
Make sure to submit your comments by the comment period
deadline identified.
SUPPLEMENTARY INFORMATION: 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 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 NAAQS for each listed pollutant, with
the NAAQS based on the air quality criteria. Section 109(d) of the CAA
requires periodic review and, if appropriate, revision of existing air
quality criteria. The revised air quality criteria reflect advances in
scientific knowledge on the effects of the pollutant on public health
or welfare. The EPA is also required to periodically review and revise
the NAAQS, if appropriate, based on the revised criteria.
Air quality criteria have been established for the nitrogen oxides
(NOX) and NAAQS have been established for nitrogen dioxide
(NO2), an indicator for NOX. Presently, EPA is
reviewing the air quality criteria for NOX and the NAAQS for
NO2. As part of its review of the NAAQS, EPA is preparing an
assessment of exposures and health risks associated with ambient
NO2. A draft plan describing the proposed approaches to
assessing exposures and risks is described in the draft document,
Nitrogen Dioxide Health Assessment Plan: Scope and Methods for Exposure
and Risk Assessment. This document was released for public review and
comment in September 2007 and was the subject of a consultation with
the Clean Air Scientific Advisory Committee (CASAC) on October 24 and
25, 2007. Comments received from that consultation have been considered
in developing the draft risk and exposure assessment documents being
released at this time.
The draft documents convey the approach taken to assess exposures
to ambient NO2 and to characterize associated health risks,
as well as to present the results of those assessments.
[[Page 22365]]
These draft documents will be available online at: http://www.epa.gov/ttn/naaqs/standards/nox/s_nox_cr_rea.html.
The EPA is soliciting advice and recommendations from the CASAC by
means of a review on the draft documents at an upcoming public meeting
of the CASAC. A Federal Register notice will inform the public of the
date and location of that meeting. Following the CASAC meeting, EPA
will consider comments received from the CASAC and the public in
preparing a second draft risk and exposure assessment report. The
release of the second draft report will be followed by another CASAC
meeting and ultimately by a final risk and exposure assessment report.
Dated: April 18, 2008.
Stephen D. Page,
Director, Office of Air Quality Planning and Standards.
[FR Doc. E8-9132 Filed 4-24-08; 8:45 am]
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