WASHINGTON, D.C. 20460
                                   August 15, 2003
                                                                OFFICE OF THE ADMINISTRATOR
                                                                 SCIENCE ADVISORY BOARD

Honorable Marianne Lament Horinko
U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, NW
Washington, DC 20460
Dear Ms. Horinko:
Clean Air Scientific Advisory Committee Particulate Matter Review Panel
Teleconference Consultation on the Agency's Risk Analysis Plans for
Coarse Particulate Matter (PM10_2J andPM10
       The Clean Air Scientific Advisory Committee's (CASAC) Particulate Matter (PM)
Review Panel of the EPA Science Advisory Board (SAB) met via public teleconference on May
1, 2003, to conduct a Consultation with staff from EPA's Office of Air Quality Planning and
Standards (OAQPS), Office of Air and Radiation (OAR), on the Agency' s Risk Analysis Plans
for Coarse Particulate Matter (PM10_2J andPM10.

       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 (FACA), as amended (5 U.S.C.
App.), 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 CASAC or the SAB
as a result of this Consultation, nor do we expect any formal response from the Agency.


                                 Dr. Philip K. Hopke, Chair
                                 Clean Air Scientific Advisory Committee

                     U.S. Environmental Protection Agency
                             Science Advisory Board
                    Clean Air Scientific Advisory Committee
                    CASAC Particulate Matter Review Panel
Dr. Philip Hopke, Bayard D. Clarkson Distinguished Professor, Department of Chemical
Engineering, Clarkson University, Potsdam, NY

Dr. Frederick J. Miller, Vice President for Research, CUT Centers for Health Research,
Research Triangle Park, NC

Mr. Richard L. Poirot, Environmental Analyst, Air Pollution Control Division, Department of
Environmental Conservation, Vermont Agency of Natural Resources, Waterbury, VT

Dr. Frank Speizer, Edward Kass Professor of Medicine, Channing Laboratory, Harvard
Medical School, Boston, MA

Dr. George E. Taylor, Professor and Assistant Dean, School of Computational Sciences,
George Mason University, Fairfax, VA

Dr. Sverre Vedal, Professor of Medicine, National Jewish Medical and Research Center,
Denver, CO, USA

Dr. Barbara Zielinska, Research Professor , Division of Atmospheric Science, Desert Research
Institute, Reno, NV

Dr. Jane Q. Koenig, Professor,  Department  of Environmental Health, School of Puublic Health
and Community Medicine, University  of Washington, Seattle, WA

Dr. Petros Koutrakis, Professor, Environmental Science and Engineering Program, School of
Public Health, Harvard University, Boston, MA

Dr. Allan Legge, President, Biosphere Solutions, Calgary, Alberta, CANADA

Dr. Paul J. Lioy, Associate Director and Professor, Environmental and Occupational Health
Sciences Institute, UMDNJ - Robert Wood Johnson Medical School, Piscataway, NJ

Dr. Morton Lippmann, Professor, Nelson Institute of Environmental Medicine, New York
University School of Medicine, Tuxedo, NY

Dr. Joe Mauderly, Vice President, Senior Scientist, and Director, National Environmental
Respiratory Center, Lovelace Respiratory Research Institute, Albuquerque, NM

Dr. Roger O. McClellan, Consultant, Albuquerque, NM

Dr. Gunter Oberdorster, Professor of Toxicology, Department of Environmental Medicine,
University of Rochester, Rochester, NY

Dr. Robert D. Rowe, President, Stratus Consulting, Inc., Boulder, CO

Dr. Jonathan M. Samet, Professor and Chair, Department of Epidemiology, Bloomberg School
of Public Health, Johns Hopkins University, Baltimore, MD

Mr. Ronald White, Assistant Executive Director, National Osteoporosis Foundation, Silver
Spring, MD

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

Dr. George T. Wolff, Principal Scientist, General Motors Corporation, Detroit, MI

Mr. Fred Butterfield, Designated Federal Officer, US EPA Science Advisory Board (1400A),
1200 Pennsylvania Avenue, NW, Washington, DC,

Ms. Delores Darden, Office Assistant, US EPA Science Advisory Board (1400A), 1200
Pennsylvania Avenue, NW, Washington, DC,

       This report has been written as part of the activities of the EPA Science Advisory
Board, a Federal advisory committee providing extramural scientific information and advice
to the Administrator and other officials of the U.S. Environmental Protection Agency. The
Board is structured to provide balanced, expert assessment of scientific matters related to
issues 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 EPA Science Advisory Board report is provided to the
EPA Administrator, senior Agency management, appropriate EPA program office staff, and
interested members of the public,  and is posted on the SAB Web site (www.epa.gov/sab).
Information on its availability is also provided in the SAB' s monthly newsletter (Happenings
at the Science Advisory Board). Additional copies and further information are available
from the SAB Staff Office, Mailing Address: U.S. EPA Science Advisory Board (1400A),
1200 Pennsylvania Avenue,  N.W., Washington, DC 20460; Phone: (202) 564-4533.