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Title: Lichen deterioration about a coal-fired steam electric generating plant

Abstract

A survey of three common epiphytic species of foliose lichens was conducted about a coal-fired steam electric station in North-Central Minnesota during the summer of 1977 to assess general lichen health on a gradient basis from a point-source of air pollution. Health, as judged by abnormal form and color, of nearly 3500 lichen specimens was recorded in 35 vegetation survey plots from a total of 291 trees. Lichen discoloration and degeneration decreased with increased distance from the power plant, and little deterioration was observed beyond 3 miles. Within the plant vicinity, lichen damage was noted on tree boles facing the plant which were impacted with fly ash. Maximum damage of lichens followed the pattern of prevailing winds (NW-SE). Sulfur analysis of lichen thalli was not correleated with visible damage distribution tended to decrease at the most distant plots (30 mi. from source). Considering the sensitivity of foliose lichens to declining air quality (especially SO/sub 2/ pollution), pollution sources in the rural environment are bound to affect lichen communities, as this study indicates. More sophisticated lichen surveys coupled with future monitoring of pollution would be a valuable contribution to the general environmental impact assessment of coal-fired electrical energy production. 19 references,more » 3 figures, 1 table.« less

Authors:
;
Publication Date:
Research Org.:
Univ. of Minnesota, St. Paul
OSTI Identifier:
6957779
Alternate Identifier(s):
OSTI ID: 6957779
Resource Type:
Journal Article
Journal Name:
J. Minn. Acad. Sci.; (United States)
Additional Journal Information:
Journal Volume: 45:1
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; AIR POLLUTION; BIOLOGICAL EFFECTS; FOSSIL-FUEL POWER PLANTS; ENVIRONMENTAL EFFECTS; LICHENS; INJURIES; SULFUR DIOXIDE; TOXICITY; DAMAGE; ENVIRONMENTAL TRANSPORT; MINNESOTA; SENSITIVITY; SURVEYS; TREES; ALGAE; CHALCOGENIDES; FEDERAL REGION V; FUNGI; MASS TRANSFER; NORTH AMERICA; OXIDES; OXYGEN COMPOUNDS; PLANTS; POLLUTION; POWER PLANTS; SULFUR COMPOUNDS; SULFUR OXIDES; THERMAL POWER PLANTS; USA 010900* -- Coal, Lignite, & Peat-- Environmental Aspects; 500200 -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989); 560303 -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)

Citation Formats

Schmidt, E.L., and Zeyen, R.J. Lichen deterioration about a coal-fired steam electric generating plant. United States: N. p., 1979. Web.
Schmidt, E.L., & Zeyen, R.J. Lichen deterioration about a coal-fired steam electric generating plant. United States.
Schmidt, E.L., and Zeyen, R.J. Mon . "Lichen deterioration about a coal-fired steam electric generating plant". United States.
@article{osti_6957779,
title = {Lichen deterioration about a coal-fired steam electric generating plant},
author = {Schmidt, E.L. and Zeyen, R.J.},
abstractNote = {A survey of three common epiphytic species of foliose lichens was conducted about a coal-fired steam electric station in North-Central Minnesota during the summer of 1977 to assess general lichen health on a gradient basis from a point-source of air pollution. Health, as judged by abnormal form and color, of nearly 3500 lichen specimens was recorded in 35 vegetation survey plots from a total of 291 trees. Lichen discoloration and degeneration decreased with increased distance from the power plant, and little deterioration was observed beyond 3 miles. Within the plant vicinity, lichen damage was noted on tree boles facing the plant which were impacted with fly ash. Maximum damage of lichens followed the pattern of prevailing winds (NW-SE). Sulfur analysis of lichen thalli was not correleated with visible damage distribution tended to decrease at the most distant plots (30 mi. from source). Considering the sensitivity of foliose lichens to declining air quality (especially SO/sub 2/ pollution), pollution sources in the rural environment are bound to affect lichen communities, as this study indicates. More sophisticated lichen surveys coupled with future monitoring of pollution would be a valuable contribution to the general environmental impact assessment of coal-fired electrical energy production. 19 references, 3 figures, 1 table.},
doi = {},
journal = {J. Minn. Acad. Sci.; (United States)},
number = ,
volume = 45:1,
place = {United States},
year = {1979},
month = {1}
}