by James K. Otton, Linda C.S. Gundersen, and R. Randall Schumann

1. Preface

2. What is Radon?

3. The Geology of Radon
   • Uranium: The source
   • Radon Formation
   • Radon movement
   • Radon entry into buildings
   • Radon in Water

4. Radon Potential
   • Sources of information on radon potential
   • Geologic maps
   • Radioactivity maps
   • Soil-air radon data
   • Soil surveys
   • Indoor radon data
   • Radon potential maps
   • Evaluating radon potential
5. Sources of Radon Information
6. Suggested Reading

This publication is one of a series of general interest publications prepared by the U.S. Geological Survey to provide information about the earth sciences, natural resources, and the environment. To obtain a catalog of additional titles in the series "General Interest Publications of the U.S. Geological Survey," write :

Book and Open-File Report Sales

U.S. Government Printing Office : 1993 0-356-733

ISBN 0-16-037974-1