[Federal Register Volume 88, Number 126 (Monday, July 3, 2023)]
[Notices]
[Page 42718]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-14083]
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ENVIRONMENTAL PROTECTION AGENCY
[FRL-10912-01-ORD]
Ambient Air Monitoring Equivalent and Equivalent Methods;
Designation of One New Equivalent Method
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice of the designation of a new equivalent method for
monitoring ambient air quality.
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SUMMARY: Notice is hereby given that the Environmental Protection
Agency (EPA) has designated one new equivalent method for measuring
concentrations of PM10 in ambient air.
FOR FURTHER INFORMATION CONTACT: Robert Vanderpool, Air Methods and
Characterization Division (MD-D205-03), Center for Environmental
Measurements and Modeling, U.S. EPA, Research Triangle Park, North
Carolina 27711. Phone: 919-541-7877. Email: [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 (NAAQS) 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
equivalent or equivalent methods (as applicable), thereby permitting
their use under 40 CFR part 58 by States and other agencies for
determining compliance with the NAAQS. A list of all equivalent or
equivalent methods that have been previously designated by EPA may be
found at https://www.epa.gov/ttn/amtic/criteria.html.
The EPA hereby announces the designation of one new equivalent
method for measuring concentrations of PM10 in ambient air.
This designation is made under the provisions of 40 CFR part 53, as
amended on October 26, 2015 (80 FR 65291-65468). The new equivalent
method for PM10 is an automated method (monitor) utilizing
the measurement principle based on inertial separation of the
PM10 size range with filter sample collection followed by
analysis by beta attenuation. This newly designated equivalent method
is identified as follows:
EQPM-0423-260,''Thermo Scientific Model 5030iQ SHARP Monitor''
operated at a flow rate of 16.67 liters per minute for 24-hour average
measurements configured for PM10 measurements with a
louvered PM10 size selective inlet as specified in 40 CFR 50
Appendix L, Figs. L-2 through L-19, inlet connector, and operational
calibration and servicing as outlined in the Model 5030iQ SHARP
instructional manual. Model 5030iQ instrument firmware version 01.0.09
or later.
This application for an equivalent method determination for this
PM10 method was received by the Office of Research and
Development on February 22, 2023. This monitor is commercially
available from the applicant, Thermo Fisher Scientific, Air Quality
Instruments, Environmental Instruments Division, 27 Forge Parkway,
Franklin, MA 02038.
A representative test analyzer was tested in accordance with the
applicable test procedures specified in 40 CFR part 53, as amended on
October 26, 2015. After reviewing the results of those tests and other
information submitted by the applicant, EPA has determined, in
accordance with 40 CFR part 53, that this method should be designated
as an equivalent method.
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,
this 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-13-003, (both available at https://www.epa.gov/ttn/amtic/qalist.html). 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.
Consistent or repeated noncompliance with any of these conditions
should be reported to: Director, Air Methods and Characterization
Division (MD-D205-03), Center for Environmental Measurements and
Modeling, U.S. Environmental Protection Agency, Research Triangle Park,
North Carolina 27711.
Designation of this 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.
Alice Gilliland,
Acting Director, Center for Environmental Measurements and Modeling.
[FR Doc. 2023-14083 Filed 6-30-23; 8:45 am]
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