Water‐soluble constituents of mount St. Helens ash

F.C. Sung Laboratory of Radiation Ecology College of Fisheries, University of Washington, Seattle, Washington, 98195

A.E. Nevissi Laboratory of Radiation Ecology College of Fisheries, University of Washington, Seattle, Washington, 98195

F.B. Dewalle Laboratory of Radiation Ecology College of Fisheries, University of Washington, Seattle, Washington, 98195

Abstract

The elemental composition of Mount St. Helens ash samples and the amount of water‐leachable trace elements from the ash samples have been measured by inductively coupled plasma emission spectrometry and atomic absorption spectrometry. The leachable fraction of metals ranges from zero to 12 percent. It is speculated that the metals present in the leachates are mainly in colloidal form.

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Water‐soluble constituents of mount St. Helens ash

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Water‐soluble constituents of mount St. Helens ash

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