Title: Effects of the eruptions of Mount St. Helens on physical, chemical, and biological characteristics of surface water, ground water, and precipitation in the Western United States /
Authors: Lee, Douglas B.
Publisher: U.S. Geologoical Survey,
Year: 1996
Subjects: Volcanic ash, tuff, etc. Environmental aspects Northwest, Pacific.; Volcanic ash, tuff, etc. Environmental aspects Colorado.; Water Pollution Northwest, Pacific.; Water Pollution Colorado.; Saint Helens, Mount (Wash.) Eruption, 1980 Environmental aspects.