EPA's map of radon zones
Subtitle: Oregon
By: Radon Division, Office of Radiation and Indoor Air, U.S. Environmental Protection Agency.
Contributors: Geological Survey (U.S.); United States. Environmental Protection Agency. Office of Radiation and Indoor Air.
Publisher: The Office
Published: 1993
Place of publication: [Washington, D.C.]
Language: eng
Subjects: Radon -- Environmental aspects.; Indoor air pollution -- Oregon.
Notes: "September, 1993."

"This document was prepared ... in conjunction with the U.S. Geological Survey (USGS)."

"402-R-93-057"--Cover.

Includes bibliographical references.