[Federal Register Volume 75, Number 42 (Thursday, March 4, 2010)]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-4547]
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 lead (Pb) in total
suspended particulate matter (TSP) 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, 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 (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 lead (Pb) in total suspended particulate matter
(TSP) 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 method is identified as follows:
EQL-0310-189, ``Procedure for Determination of Lead in Ambient Air TSP
by Hot Plate Acid Extraction and ICP-MS Analysis.''
In this method, total suspended particulate matter (TSP) is
collected according to 40 CFR Appendix B to part 50, EPA Reference
Method for the Determination of Suspended Particulate Matter in the
Atmosphere (High-Volume Method), extracted on a hot plate with 3M
HNO3 according to 40 CFR Appendix G to part 50, EPA
Reference Method for the Determination of Lead in Suspended Particulate
Matter Collected from Ambient Air, and analyzed by Inductively Coupled
Plasma-Mass Spectrometry (ICP-MS) based on EPA SW-846 Method 6020A.
The application for an equivalent method determination for this
method was submitted by Inter-Mountain Laboratories, Incorporated, 1673
Terra Avenue, Sheridan, WY 82801 and was received by the Office of
Research and Development on December 16, 2009.
The analytical procedure 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 lead. 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 complete
operating procedures (SOPs) associated with the method and subject to
any specifications and limitations specified in the procedure.
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/ttn/amtic/qabook.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.
Repeated noncompliance with the method procedure/SOP 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.
Jewel F. Morris,
Acting Director, National Exposure Research Laboratory.
[FR Doc. 2010-4547 Filed 3-3-10; 8:45 am]
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