May 18,2000

EPA-SAB-CASAC-CON-00-007

Honorable Carol M. Browner
Administrator
U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, NW
Washington, DC 20460

              Subject:       Notification of a Consultation on Sampler
                            Intercomparison Study

Dear Ms. Browner:

       The Clean Air Scientific Advisory Committee (CASAC) Technical Subcommittee on Fine
Particle Monitoring, met on April 18-19, 2000 in Research Triangle Park, NC to conduct a
Consultation with staff from the Office of Air and Radiation (OAR), Office of Air Quality Planning and
Standards (OAQPS) on the Sampler Intercomparison Study.

       The SAB has developed the consultation as a mechanism to advise the Agency on technical
issues that should be considered in the development of regulations,  guidelines, or technical guidance
before the Agency has taken a position. A consultation is conducted under the normal requirements of
the Federal Advisory Committee Act, which include advance notice of the public meeting in the Federal
Register.

       As is our customary practice, there will be no formal report from the SAB as a result of this
consultation, nor do we expect any formal response from the Agency.
                                   Sincerely,
                                  Dr. Joe Mauderly, Chair
                                  Clean Air Scientific Advisory Committee
                                  Science Advisory Board

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                      U.S. Environmental Protection Agency
                              Science Advisory Board
                    Clean Air Scientific Advisory Committee
CHAIR
Dr. Joe L. Mauderly, Director of External Affairs, Senior Scientist and Director of National
       Environmental Respiratory Center, Lovelace Respiratory Research Institute, Albuquerque, NM
       (Member of the Executive Committee of the Science Advisory Board)

MEMBERS
Mr. John Elston, Administrator, Office of Air Quality Management, State of New Jersey, Department
       of Environmental Protection and Energy, Trenton, NJ

Dr. Philip Hopke,R.A. Plane Professor of Chemistry and Dean of the Graduate School, Clarkson
       University, Potsdam, New York (Chair of the CAS AC Technical Subcommittee on Fine
       Particle Monitoring; Member of the Research Strategies Advisory Committee of the Science
       Advisory Board))

Dr. Eva J. Pell, Steimer Professor of Agriculture Sciences, The Pennsylvania State University,
       University Park, PA

Dr. Arthur C. Upton, M.D., Director, Independent Peer Review, CRESP, Environmental and
       Occupational Health Sciences Institute, New Brunswick, NJ (Member of the Institute of
       Medicine, National Academy of Sciences; former Chair of the Environmental Health
       Committee of the Science Advisory Board)

Dr. Sverre Vedal, M.D., Professor of Medicine, Vancouver General Hospital, Vancouver, BC
       Canada

Dr. Warren White, Senior Research Associate, Washington University, Chemistry, Department, St.
       Louis, MO

SCIENCE ADVISORY BOARD STAFF
Mr. A. Robert Flaak, Designated Federal Officer, Science Advisory Board (1400A), U.S.
       Environmental Protection Agency,  1200 Pennsylvania Avenue, NW, Washington, DC

Ms. Diana Pozun, Management Assistant, Science Advisory Board (1400A), U.S. Environmental
       Protection Agency, 1200 Pennsylvania Avenue, NW, Washington, DC

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                           U.S. Environmental Protection Agency
                                  Science Advisory Board
                          Clean Air Scientific Advisory Committee
                            CASAC Technical Subcommittee on
                                  Fine Particle Monitoring

Chair
Dr. Phil Hopke, Clarkson University, Potsdam, NY

Members of CASAC
Dr. John Elston, State of New Jersey, Trenton, NJ

Dr. Warren White, Washington University, St. Louis, MO1

Members of Other SAB Committees
Dr. JoAnn Lighty, University of Utah, Salt Lake City, UT (Environmental Engineering Committee)

Dr. Morton Lippmann, New York University, Tuxedo, NY (Executive Committee)

Consultants to CASAC
Dr. Petros Koutrakis, Harvard School of Public Health, Boston, MA

Dr. Debra Laskin, Environmental & Occupational Health Sciences Institute, Rutgers University,
       Piscataway, NJ

Dr. Peter H. McMurry, University of Minnesota, Minneapolis, MN

Dr. Kimberly A. Prather, University of California-Riverside, Riverside, CA

Dr. Carl M. Shy, University of North Carolina at Chapel Hill, Chapel Hill, NC

Dr. George T. Wolff, General Motors, Detroit, MI

Dr. Mel Zeldin, South Coast Air Quality Management District, Diamond Bar, CA

Science Advisory Board Staff
Mr. A. Robert Flaak, Designated Federal Official, US Environmental Protection Agency, Science
       Advisory Board (1400A), 1200 Pennsylvania Avenue, NW, Washington, DC

Ms. Diana Pozun, Management Assistant, US Environmental Protection Agency, Science Advisory
       Board (1400A), 1200 Pennsylvania Avenue, NW, Washington, DC
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                                         NOTICE
       This report has been written as part of the activities of the Science Advisory Board, a public
advisory group providing extramural scientific information and advice to the Administrator and other
officials of the Environmental Protection Agency.  The Board is structured to provide balanced, expert
assessment of scientific matters related to problems facing the Agency.  This report has not been
reviewed for approval by the Agency and, hence, the contents of this report do not necessarily
represent the views and policies of the Environmental Protection Agency, nor of other agencies in the
Executive Branch of the Federal government, nor does mention of trade names or commercial products
constitute a recommendation for use.
Distribution and Availability: This Science Advisory Board report is provided to the EPA
Administrator, senior Agency management, appropriate program staff, interested members of the
public, and is posted on the SAB website (www.epa.gov/sab). Information on its availability is also
                                              IV

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provided in the SAB's monthly newsletter (Happenings at the Science Advisory Board). Additional
copies and further information are available from the SAB Staff.

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