Visual air quality in the Pacific Northwest
Subtitle: an analysis of camera data, 1983-1992
By: written by Steven Boutcher.
Contributors: United States. Forest Service. Pacific Northwest Region.; Air Resource Specialists, Inc.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region
Published: 1994
Place of publication: [Portland, Or.]
Language: eng
Subjects: Air quality -- Northwest, Pacific.; Air quality indexes -- Northwest, Pacific.; Visibility -- Northwest, Pacific.
Notes: Includes bibliographical references.
"December 1994."
"Data analysis by Air Resource Specialists, Inc."