Botanical studies in the vicinity of Allen Steam Plant: results of surveys conducted in 1979 and a review of survey of results from 1973 through 1978. [Trees, shrubs, weeds, grasses]
No air pollution effects attributable to sulfur dioxide (SO/sub 2/) emissions from Allen Steam Plant were observed in 1979. Effects on vegetation attributable to emissions from Allen Steam Plant have been observed only once since the steam plant was leased to TVA in 1965. In 1978, light foliar injury was observed on two species of vegetation in one small area, about 150 acres. However, only one of the affected species, domestic sunflower, was economically important and the effects observed on that species were not economically significant. The mean sulfur content of coal fired and the daily SO/sub 2/ emissions during the 1979 growing season were significantly lower than the average for the 1973 through 1978 growing seasons. The level of the National Secondary Ambient Air Quality Standard (3-h avg of 0.50 p/m) has never been exceeded at SO/sub 2/ monitors in the vicinity of Allen Steam Plant during daylight hours (time period when most vegetation is sensitive to SO/sub 2/ exposure) of any growing season. Previous operational and SO/sub 2/ monitoring data indicate that it is not likely that emissions from the steam plant will injure vegetation as long as the emission rate does not exceed the compliance level. Consequently, it is recommended that routine botanical surveys be suspended in the Allen Steam Plant area. However, partial surveys will be conducted as required in any area surrounding a monitor where the level of the National Secondary Ambient Air Quality Standard is exceeded during daylight hours of the growing season or in the area surrounding any vegetation associated with a complaint.
- Research Organization:
- Tennessee Valley Authority, Muscle Shoals, AL (USA). Office of Natural Resources
- OSTI ID:
- 5411829
- Report Number(s):
- TVA/ARP-I-80/17; ON: DE82903619
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
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PLANTS
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SURVEYS
SULFUR DIOXIDE
MONITORING
AIR POLLUTION
COAL
COMPLIANCE
EVALUATION
MAXIMUM PERMISSIBLE LEVEL
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NATIONAL ORGANIZATIONS
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OXIDES
OXYGEN COMPOUNDS
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SULFUR OXIDES
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