U.S. Geological Survey: Science for a Changing World - USGS visiaul identifier and link to main Web site at http://www.usgs.gov/


U.S. DEPARTMENT OF THE INTERIOR
GALE A. NORTON, Secretary

U.S. GEOLOGICAL SURVEY
CHARLES G. GROAT, Director

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 2003

Published in the Eastern Region, Reston, Va.
Manuscript approved for publication April 5, 2002.

Any use of trade, product, or firm names in this publication is for descriptive purposes
only and does not imply endorsement by the U.S. Government.

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Library of Congress Cataloging in Publication Data

Schweinfurth, Stanley P.

Coal—a complex natural resource : an overview of factors affecting coal quality and use in the United
States / by Stanley P. Schweinfurth ; with a contribution on coal quality and public health by Robert
B. Finkelman.

p. cm.- (U.S Geological Survey circular ; 1143)
Included bibliographical references.
1. Coal—United States. l. Title. ll. Series.

TP326.U5 S38 2001                     00–067694
662.6'22–dc21
ISBN 0-607-93447-6

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