[Federal Register Volume 75, Number 80 (Tuesday, April 27, 2010)]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-9756]
ENVIRONMENTAL PROTECTION AGENCY
Office of Research and Development; Ambient Air Monitoring
Reference and Equivalent Methods: Designation of One New Equivalent
AGENCY: Environmental Protection Agency.
ACTION: Notice of the designation of one new equivalent method for
monitoring ambient air quality.
SUMMARY: Notice is hereby given that the Environmental Protection
Agency (EPA) has designated, in accordance with 40 CFR Part 53, one new
equivalent method for measuring concentrations of ozone (O3)
in the ambient air.
FOR FURTHER INFORMATION CONTACT: Surender Kaushik, Human Exposure and
Atmospheric Sciences Division (MD-D205-03), National Exposure Research
Laboratory, U.S. EPA, Research Triangle Park, North Carolina 27711.
Phone: (919) 541-5691, e-mail: [email protected].
SUPPLEMENTARY INFORMATION: In accordance with regulations at 40 CFR
Part 53, the EPA evaluates various methods for monitoring the
concentrations of those ambient air pollutants for which EPA has
established National Ambient Air Quality Standards (NAAQSs) as set
forth in 40 CFR Part 50. Monitoring methods that are determined to meet
specific requirements for adequacy are designated by the EPA as either
reference methods or equivalent methods (as applicable), thereby
permitting their use under 40 CFR Part 58 by States and other agencies
for determining compliance with the NAAQSs.
The EPA hereby announces the designation of one new equivalent
method for measuring ozone (O3) in the ambient air. This
designation is made under the provisions of 40 CFR Part 53, as amended
on November 12, 2008 (73 FR 67057-67059).
The new equivalent method for O3 is an automated method
that utilizes a measurement principle based on ultraviolet absorption
photometry. The newly designated equivalent method for O3 is
identified as follows:
EQOA-0410-190, ``2B Technologies Model 202 Ozone Monitor,''
enclosed in a 3.5'' x 8.3'' x 11.6'' case, operated in an
environment of 10 - 40[deg]C, with temperature/pressure
compensation, using a 10 second average, 10 second display update,
on-board backup sample pump, with a 110-220V AC power adapter or a
12V DC source such as a cigarette lighter adapter plugged into a 12V
DC source or a 12V DC battery for portable operation, 4.0 watt power
consumption, external TFE inlet filter and holder, serial data port
with computer cable, BNC connector for 0-2.5V user scalable analog
output, internal data logger, 3-analog inputs for external signals
(such as temperature, relative humidity or pressure), rack mount
hardware, internal DewLine for humidity control and operated
according to the Model 202 Ozone Monitor Operation Manual.
The application for the equivalent method determination for this
candidate method was received by the EPA on November 3, 2009. The
monitor is commercially available from the applicant, 2B Technologies,
Incorporated, 2100 Central Ave., Suite 105, Boulder, CO 80301.
A test monitor representative of this method has been tested in
accordance with the applicable test procedures specified in 40 CFR Part
53, as amended on November 12, 2008. After reviewing the results of
those tests and other information submitted in the application, EPA has
determined, in accordance with Part 53, that this method should be
designated as an equivalent method for ozone. The information provided
by the applicant will be kept on file, either at EPA's National
Exposure Research Laboratory, Research Triangle Park, North Carolina
27711 or in an approved archive storage facility, and will be available
for inspection (with advance notice) to the extent consistent with 40
CFR Part 2 (EPA's regulations implementing the Freedom of Information
As a designated equivalent method, this method is acceptable for
use by states and other air monitoring agencies under the requirements
of 40 CFR Part 58, Ambient Air Quality Surveillance. For such purposes,
the method must be used in strict accordance with the operation or
instruction manual associated with the method and subject to any
specifications and limitations (e.g., configuration or operational
settings) specified in the applicable designated method description
(see the identification of the method above).
Use of the method should also be in general accordance with the
guidance and recommendations of applicable sections of the ``Quality
Assurance Handbook for Air Pollution Measurement Systems, Volume I,''
EPA/600/R-94/038a and ``Quality Assurance Handbook for Air Pollution
Measurement Systems, Volume II, Ambient Air Quality Monitoring
Program'' EPA-454/B-08-003, December 2008 (available at http://www.epa.gov/ttnamti1/files/ambient/pm25/qa/QA-Handbook-Vol-II.pdf).
Provisions concerning modification of such methods by users are
specified under Section 2.8 (Modifications of Methods by Users) of
Appendix C to 40 CFR Part 58.
In general, a method designation applies to any sampler or analyzer
which is identical to the sampler or analyzer described in the
application for designation. In some cases, similar samplers or
analyzers manufactured prior to the designation may be upgraded or
converted (e.g., by minor modification or by substitution of the
approved operation or instruction manual) so as to be identical to the
designated method and thus achieve designated status. The manufacturer
should be consulted to determine the feasibility of such upgrading or
Part 53 requires that sellers of designated reference or equivalent
method analyzers or samplers comply with certain conditions. These
conditions are specified in 40 CFR 53.9.
Aside from occasional breakdowns or malfunctions, consistent or
repeated noncompliance with any of these conditions should be reported
to: Director, Human Exposure and Atmospheric Sciences Division (MD-
E205-01), National Exposure Research Laboratory, U.S. Environmental
Protection Agency, Research Triangle Park, North Carolina 27711.
Designation of this new equivalent method is intended to assist the
States in establishing and operating their air quality surveillance
systems under 40 CFR Part 58. Questions concerning the technical
aspects of the method should be directed to the applicant.
Dated: April 19, 2010.
Jewel F. Morris,
Acting Director, National Exposure Research Laboratory.
[FR Doc. 2010-9756 Filed 4-26-10; 8:45 am]
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