[Federal Register Volume 67, Number 177 (Thursday, September 12, 2002)]
[Notices]
[Pages 57811-57813]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 02-23261]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-7375-7]


Ambient Air Monitoring Reference and Equivalent Methods: 
Designation of Two New Equivalent Methods for SO2 and 
O3

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of designation of two new equivalent methods for 
monitoring ambient air quality.

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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 sulfur dioxide 
(SO2) in ambient air and one new equivalent method for 
measuring concentrations of ozone (O3) in ambient air.

FOR FURTHER INFORMATION CONTACT: Elizabeth Hunike, Human Exposure and 
Atmospheric Sciences Division (MD-D205-03), National Exposure Research 
Laboratory, U.S. EPA, Research Triangle Park, North Carolina 27711. 
Phone: (919) 541-3737, 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), 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 attainment of the NAAQSs.
    The EPA hereby announces the designation of one new equivalent 
method for measuring concentrations of sulfur dioxide (SO2) 
in ambient air and one new equivalent method for measuring 
concentrations of ozone (O3) in ambient air. These 
designations are made under the provisions of 40 CFR part 53, as 
amended on July 18, 1997 (62 FR 38764).
    The new equivalent method for SO2 is an automated method 
(analyzer) that utilizes a measurement principle based on ultraviolet 
fluorescence. The newly designated equivalent method is identified as 
follows:

    EQSA-0802-149, ``Environnement S.A. Model AF22M UV Fluorescence 
Sulfur Dioxide Analyzer,'' operated with a full scale range of 0-500 
ppb, at any temperature in the range of 10 [deg]C to 35 [deg]C, with 
a 5-micron PTFE sample particulate filter, with a response time 
setting of 11 (Automatic response time), with the automatic ``ZERO-
REF'' cycle ON and set for activation every 24 hours, and with or 
without either of the following options: Permeation oven, Rack mount 
slides.

    An application for an equivalent method determination for this 
method was received by the EPA on April 30, 2002. The method is 
available commercially from the applicant, Environnement S.A., 111, 
Boulevard Robespierre, 78304 Poissy, France (http://www.environnement-sa.com).
    The new equivalent method for O3 is an automated method 
(analyzer) that utilizes a measurement principle based on absorption of 
ultraviolet light by ozone at a wavelength of 254 nm. The newly 
designated equivalent method is identified as follows:

    EQOA-0992-087, ``Teledyne--Advanced Pollution Instrumentation 
Model 400E UV Photometric Ozone Analyzer,'' operated on any full 
scale range between 0--100 ppb and 0--1000 ppb, with any range mode 
(Single, Dual, or Auto Range), at any ambient temperature in the 
range of 5 [deg]C to 40 [deg]C, on input power of 115 or 230 Vac 
(nominal) and 50-60 Hz, with a PTFE sample particulate filter, with 
a sample flow rate of 800 +/-80 cm3/min (sea level), with 
the dilution factor set to 1, with Dynamic Zero ON or OFF, with 
Dynamic Span OFF, with Temp/Press compensation ON, and with or 
without any of the following options: Internal or external sample 
pump, Sample/Cal valve option, Internal Zero/Span (IZS), Rack mount 
with or without slides, 4-20 mA isolated current loop output.

    An application for an equivalent method determination for this 
method was received by the EPA on June 4, 2002. The Model 400E is a 
modified and updated version of the Advanced Pollution Instrumentation 
Model 400/400A, which was previously designated as an equivalent method 
(57 FR 44565) and continues to be so designated. The model 400E is 
available commercially from the applicant, Teledyne Instruments, 
Advanced Pollution Instrumentation Division, 6565 Nancy Ridge Drive, 
San Diego, California (http://www.teledyne-api.com).
    A test analyzer representative of each of these methods has been 
tested by the respective applicant in accordance with the applicable 
test procedures specified in 40 CFR part 53 (as amended on July 18, 
1997). After reviewing the results of those tests and other information 
submitted by the applicants, EPA has determined, in accordance with 
part 53, that each of these methods should be designated as an 
equivalent method. The information submitted by the applicants 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 reference or equivalent method, each 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., measurement range, 
operational settings, or temperature range) specified in the applicable 
designation method description (see the identifications of the methods 
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, Part 1,'' EPA-454/R-98-004. Vendor 
modifications of a designated reference or 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 of appendix C to 40 
CFR part 58 (Modifications of Methods by Users).
    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 
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 and are summarized below:
    (a) A copy of the approved operation or instruction manual must 
accompany the sampler or analyzer when it is delivered to the ultimate 
purchaser.
    (b) The sampler or analyzer must not generate any unreasonable 
hazard to operators or to the environment.
    (c) The sampler or analyzer must function within the limits of the 
applicable performance specifications given in 40 CFR parts 50 and 53 
for at least one year after delivery when maintained and operated in 
accordance with the operation or instruction manual.
    (d) Any sampler or analyzer offered for sale as part of a reference 
or equivalent method must bear a label or sticker indicating that it 
has been designated as part of a reference or

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equivalent method in accordance with part 53 and showing its designated 
method identification number.
    (e) If such an analyzer has two or more selectable ranges, the 
label or sticker must be placed in close proximity to the range 
selector and indicate which range or ranges have been included in the 
reference or equivalent method designation.
    (f) An applicant who offers samplers or analyzers for sale as part 
of a reference or equivalent method is required to maintain a list of 
ultimate purchasers of such samplers or analyzers and to notify them 
within 30 days if a reference or equivalent method designation 
applicable to the method has been canceled or if adjustment of the 
sampler or analyzer is necessary under 40 CFR 53.11(b) to avoid a 
cancellation.
    (g) An applicant who modifies a sampler or analyzer previously 
designated as part of a reference or equivalent method is not permitted 
to sell the sampler or analyzer (as modified) as part of a reference or 
equivalent method (although it may be sold without such 
representation), nor to attach a designation label or sticker to the 
sampler or analyzer (as modified) under the provisions described above, 
until the applicant has received notice under 40 CFR 53.14(c) that the 
original designation or a new designation applies to the method as 
modified, or until the applicant has applied for and received notice 
under 40 CFR 53.8(b) of a new reference or equivalent method 
determination for the sampler or analyzer as modified.
    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 these new equivalent methods 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: September 4, 2002.
Jewel F. Morris,
Acting Director, National Exposure Research Laboratory.
[FR Doc. 02-23261 Filed 9-11-02; 8:45 am]
BILLING CODE 6560-50-P