Effect of conventional and advanced coal conversion by-products on the pulmonary system
To evaluate the environmental impact of different energy technologies, fly ash samples collected from a coal-fired and from an oil-fired electric power plant were used in aerosol inhalation exposures of mice. The effects of multiple 3-h exposures to the fly ash particles at 2 and 1 mg/cu m aerosol mass concentration and <0.5 micrometer MMAD were evaluated in male and female mice by examining the changes in their pulmonary free cells, in their susceptibility to streptococcus infection, and in the bactericidal activity in their lungs to inhaled Klebsiella pneumoniae. Generally, no consistent differences could be discovered in the effects of the exposures between the two sexes. However, in a combined evaluation of both sexes, more and greater significant changes relative to controls were observed in the experimental parameters after inhalation of the oil power plant fly ash than after exposure to the coal fly ash. Thus, the overall results of the study indicate that the pulmonary defense system of mice was more adversely affected by the oil-fired power plant fly ash, a true stack emission effluent, than by the coal fly ash collected by electrostatic precipitator, an in-plant control device.
- Research Organization:
- IIT Research Inst., Chicago, IL (USA). Life Sciences Div.
- OSTI ID:
- 5473517
- Report Number(s):
- PB-81-190506
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
FLY ASH
BIOLOGICAL EFFECTS
INHALATION
TOXICITY
RESPIRATORY SYSTEM
CONTAMINATION
AEROSOLS
BY-PRODUCTS
COAL
ENERGY
FEMALES
FOSSIL-FUEL POWER PLANTS
FUEL OILS
LABORATORY ANIMALS
LUNGS
MALES
MICE
AEROSOL WASTES
ANIMALS
ASHES
BODY
CARBONACEOUS MATERIALS
COLLOIDS
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INTAKE
LIQUID FUELS
MAMMALS
MATERIALS
OILS
ORGANIC COMPOUNDS
ORGANS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POWER PLANTS
RESIDUES
RODENTS
SOLS
THERMAL POWER PLANTS
VERTEBRATES
WASTES
560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987)
016000 - Coal
Lignite
& Peat- Health & Safety
020600 - Petroleum- Health & Safety