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Title: Effect of ash fallout on water quality in western Montana. Final report

Abstract

Subsequent to the eruption of Mount St. Helens in 1980, a water-quality study was conducted on lakes and streams of the Clearwater drainage of Western Montana and several oligotrophic high mountain lakes in Idaho. Field studies indicated that the fallout, although containing appreciable amounts of water-soluble nutrients, had virtually no effect on productivity of oligotrophic lakes. Appreciable increases in algal productivity were noted in the mesotrophic study lakes in 1980, although they were no larger than might be expected from climatological changes or from local logging activity. Laboratory studies showed that, imitating natural conditions, appreciable amounts of nutrients could be extracted from the ash, and that the extracts increased algal productivity in incubated lake samples.

Authors:
;
Publication Date:
Research Org.:
Montana Univ., Missoula (USA)
OSTI Identifier:
5613616
Report Number(s):
PB-85-157824/XAB
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; FLY ASH; ENVIRONMENTAL IMPACTS; LAKES; WATER QUALITY; MT ST HELENS; STREAMS; ALGAE; DRAINAGE; IDAHO; MONTANA; NUTRIENTS; SEDIMENTATION; AEROSOL WASTES; ASHES; CASCADE MOUNTAINS; ENVIRONMENTAL QUALITY; FEDERAL REGION VIII; FEDERAL REGION X; MOUNTAINS; NORTH AMERICA; PLANTS; RESIDUES; SURFACE WATERS; USA; WASHINGTON; WASTES; 520200* - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)

Citation Formats

Juday, R E, and Keller, E J. Effect of ash fallout on water quality in western Montana. Final report. United States: N. p., 1984. Web.
Juday, R E, & Keller, E J. Effect of ash fallout on water quality in western Montana. Final report. United States.
Juday, R E, and Keller, E J. 1984. "Effect of ash fallout on water quality in western Montana. Final report". United States.
@article{osti_5613616,
title = {Effect of ash fallout on water quality in western Montana. Final report},
author = {Juday, R E and Keller, E J},
abstractNote = {Subsequent to the eruption of Mount St. Helens in 1980, a water-quality study was conducted on lakes and streams of the Clearwater drainage of Western Montana and several oligotrophic high mountain lakes in Idaho. Field studies indicated that the fallout, although containing appreciable amounts of water-soluble nutrients, had virtually no effect on productivity of oligotrophic lakes. Appreciable increases in algal productivity were noted in the mesotrophic study lakes in 1980, although they were no larger than might be expected from climatological changes or from local logging activity. Laboratory studies showed that, imitating natural conditions, appreciable amounts of nutrients could be extracted from the ash, and that the extracts increased algal productivity in incubated lake samples.},
doi = {},
url = {https://www.osti.gov/biblio/5613616}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}

Technical Report:
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