Preliminary Radiological Impact Assessment of Western Coal Utilization

Preliminary Radiological Impact Assessment of Western Coal Utilization
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Release: 1977
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This research program was initiated to: (1) delineate the scope of the potential environmental and human health problem associated with radioactivity in Western coal; (2) establish a data base for 234U, 238U, 21°Pb, 21°Po, 23°Th and 226Ra found in Western coal; (3) study the release, fate, and accumulation of radionuclides from a power plant burning Western coal; and (4) assess the possible need for additional control technology and/or standards. Preliminary results indicate that radionuclides may be made available to the environment from burning Western coal. Lead-210 in coal used at the power plant averaged 0.79 pCi/g, 21°Pb in soil averaged 0.70 pCi/g, and 21°Pb in/on vegetation in the environs of the power plant ranged from 2.23 to 5.70 pCi/g. These values for 21°Pb in soil are in the range of natural background, but plants appear to have slightly elevated concentrations. Preliminary dose evaluations for 21°Pb alone indicated that individuals whose total vegetation intake was grown in this area could receive as much as 400 mrem/yr to the kidney, which is below the current standard of 500 mrem/yr. Although no health hazard has been identified, additional studies of 21°Pb concentrations in/on vegetation and of dose evaluations are being undertaken.

1981 DOE Authorization

1981 DOE Authorization
Author: United States. Congress. House. Committee on Science and Technology. Subcommittee on Natural Resources and Environment
Publisher:
Total Pages: 604
Release: 1980
Genre: Energy development
ISBN:

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Preliminary Assessment of the Health and Environmental Impacts of Fluidized-bed Combustion of Coal as Applied to Electrical Utility Systems

Preliminary Assessment of the Health and Environmental Impacts of Fluidized-bed Combustion of Coal as Applied to Electrical Utility Systems
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Release: 1977
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The objective of this study was to assess the health and environmental impacts of fluidized-bed combustion of coal (FBC), specifically as applied to base-load generation of electrical energy by utilities. The public health impacts of Fluidized-Bed Combustion (FBC) plants are expected to be quite similar to those for Low Sulfur Coal (LSC) and Flue Gas Desulfurization (FGD) plants because all appear to be able to meet Federal emission standards; however, there are emissions not covered by standards. Hydrocarbon emissions are higher and trace element emissions are lower for FBC than for conventional technologies. For FBC, based on an analytical model and a single emission data point, the polycyclic organic material decreases the anticipated lifespan of the highly exposed public very slightly. Added health protection due to lower trace element emissions is not known. Although there is a large quantity of solid wastes from the generating plant, the environmental impact of the FBC technology due to solid residue appears lower than for FGD, where sludge management requires larger land areas and presents problems due to the environmentally noxious calcium sulfite in the waste. Fixing the sludge may become a requirement that increases the cost of wet-limestone FGD but makes that system more acceptable. The potential for aquatic or terrestrial impacts from hydrocarbon emissions is low. If application of AFBC technology increases the use of local high-sulfur coals to the detriment of western low-sulfur coal, a sociological benefit could accrue to the FBC (or FGD) technology, because impacts caused by western boom towns would decrease. The infrastructure of areas that mine high-sulfur coal in the Midwest are better equipped to handle increased mining than the West.