[Federal Register Volume 76, Number 195 (Friday, October 7, 2011)]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-26092]
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: Robert Vanderpool, Human Exposure and
Atmospheric Sciences Division (MD-D205-03), National Exposure Research
Laboratory, U.S. EPA, Research Triangle Park, North Carolina 27711. E-
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. A list of all reference or
equivalent methods that have been previously designated by EPA may be
found at http://www.epa.gov/ttn/amtic/criteria.html.
The EPA hereby announces the designation of one new equivalent
method for measuring pollutant concentrations of O3 in the
ambient air. This designation is made under the provisions of 40 CFR
part 53, as amended on June 22, 2010 (75 FR 35597).
The new O3 equivalent method is an automated monitoring
method (analyzer) utilizing a measurement principle based on
chemiluminescence reaction of O3 with nitric oxide (NO).
(Note that this is the first O3 equivalent method designated
by EPA that utilizes this particular measurement principle, which is
distinguished from the measurement principle of chemiluminescence
reaction of O3 with ethylene specified for EPA reference
methods for O3.) The newly designated equivalent method is
identified as follows:
EQOA-0611-199, ``Teledyne--Advanced Pollution Instrumentation,
Inc. Model 265E or T265 Chemiluminescence Ozone Analyzer,'' operated
on any full scale range between 0-100 ppb and 0-1000 ppb, with any
range mode (Single, Dual, or AutoRange), at any ambient temperature
in the range of 5 [deg]C to 40 [deg]C, and with a TFE filter in the
sample air inlet, operated with a sample flow rate of 500 50 cm\3\/min (sea level), with the dilution factor set to 1,
with Temp/Press compensation ON, and in accordance with the
appropriate associated instrument manual, and with or without any of
the following options: Internal or external sample pump, Sample/Cal
valve option, Rack mount with or without slides, analog input
option, 4-20 mA isolated current loop output.
The application for an equivalent method determination for this
candidate method was received by the EPA on November 7, 2010. The
analyzer models are commercially available from the applicant, Teledyne
Advanced Pollution Instrumentation, Inc., 9480 Carroll Park Drive, San
Diego, CA 92121-2251.
A representative test analyzer has been tested in accordance with
the applicable test procedures specified in 40 CFR part 53 (as amended
on June 22, 2010). After reviewing the results of those tests and other
information submitted by the applicant, EPA has determined, in
accordance with part 53, that this method should be designated as an
equivalent method. The information submitted 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 Act).
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 designated method description (see the
identification of the method above).
Use of the method also should 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 (both available at http://www.epa.gov/ttn/amtic/qalist.html). Vendor modifications of a
designated equivalent method used for purposes of Part 58 are permitted
only with prior approval of the EPA, as provided in Part 53. 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
In general, a method designation applies to any sampler, analyzer,
or method that is identical to the sampler, analyzer, or method
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 conversion.
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 commercial
availability or technical
aspects of the method should be directed to the applicant.
Jewel F. Morris,
Acting Director, National Exposure Research Laboratory.
[FR Doc. 2011-26092 Filed 10-6-11; 8:45 am]
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