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

Lee, Douglas B.

Abstract:

Over 120 publications that describe the 1980 eruption effects of Mount St. Helens on rivers, lakes, and the Columbia River estuary are reviewed. Water-quality changes ranged from minor, short-lived effects, to totally altered drainage basins and newly created lakes. Turbidity increased; concentrations of cations, anions, and dissolved organic carbon increased. Migrating fish were adversely affected; benthic-invertebrate populations changed. Ground-water levels rose near the Cowlitz River. Precipitation effects included transient, but increased specific conductance and decreased pH.

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USGS Numbered Series

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2091

Citation Author:

Lee, Douglas B.

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ENGLISH

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vii, 123 p. :map ;28 cm.; 1 plate in pocket

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U.S. Geological Survey,

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Water Supply Paper

Citation Series Code:

WSP

Citation Series Number:

2438

Citation Search Results Text:

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; 1996; WSP; 2438; Lee, Douglas B.