[Federal Register Volume 84, Number 61 (Friday, March 29, 2019)]
[Notices]
[Pages 11973-11974]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-06132]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-9990-96-ORD]


Ambient Air Monitoring Reference 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 ozone (O3) in ambient air.

FOR FURTHER INFORMATION CONTACT: Robert Vanderpool, Exposure Methods 
and Measurement Division (MD-D205-03), National Exposure Research 
Laboratory, 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 
reference 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 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 concentrations of O3 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 O3 is an automated method 
(analyzer) utilizing the measurement principle based on UV photometry. 
This newly designated equivalent method is identified as follows:
    EQOA-0219-251, ``KENTEK Inc. Model MEZUS 410 O3 
Analyzer,'' UV photometric analyzer operated in a range of 0-0.5 ppm, 
with 0.5 [micro]m, 47 mm diameter Teflon[supreg] filter installed, 
operated at temperatures between 20 [deg]C and 30 [deg]C, with 
temperature and pressure compensation, at a nominal sampling flow rate 
of 800 cc/min, using a 5 minute averaging time, with either 105VAC-
125VAC or 200VAC-240VAC input power options installed, 230-watt power 
consumption, equipped with 7 inch LCD touch screen display, and 
operated according to the KENTEK Inc. Model MEZUS 410 Ozone Analyzer 
User's Instruction Manual.
    This application for a reference method determination for this 
O3 method was received by the Office of Research and 
Development on January 29, 2019. This analyzer is commercially 
available from the applicant, Kentek Inc., Hansin S-MECA 65, Techno 3-
ro, Yuseong-gu, Daejeon 34016, Korea.
    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 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 http://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, Exposure Methods and Measurement 
Division (MD-E205-01), National Exposure Research Laboratory, U.S. 
Environmental Protection Agency, Research Triangle Park, North Carolina 
27711.

[[Page 11974]]

    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.

    Dated: March 8, 2019.
Timothy Watkins,
Director, National Exposure Research Laboratory.
[FR Doc. 2019-06132 Filed 3-28-19; 8:45 am]
 BILLING CODE 6560-50-P