Long-range transport of sulfur in the western United States. [Projections for 1985 and 1990]

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Pollutants, such as SO/sub 2/ and sulfate, emitted from both utility and industrial coal burning processes have long residence time in the atmosphere. Therefore, the long-range atmospheric transport and diffusion of these pollutants must be considered in any environmental assessment of proposed plant operation. The most useful tool in predicting the long-range transport of pollutants is a computer simulation technique for the Gaussian diffusion equation. Information produced by the model includes: SO/sub 2/ and sulfate ground-level air concentrations, the amount of SO/sub 2/ and sulfate deposited on the ground surface, the minimum pH value in the rainfall, and the budget … continued below

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81 pages

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Sandusky, W. F.; Eadie, W. J. & Drewes, D. R. January 1, 1979.

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  • Pacific Northwest Laboratory
    Publisher Info: Battelle Pacific Northwest Labs., Richland, WA (USA)
    Place of Publication: Richland, Washington

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Description

Pollutants, such as SO/sub 2/ and sulfate, emitted from both utility and industrial coal burning processes have long residence time in the atmosphere. Therefore, the long-range atmospheric transport and diffusion of these pollutants must be considered in any environmental assessment of proposed plant operation. The most useful tool in predicting the long-range transport of pollutants is a computer simulation technique for the Gaussian diffusion equation. Information produced by the model includes: SO/sub 2/ and sulfate ground-level air concentrations, the amount of SO/sub 2/ and sulfate deposited on the ground surface, the minimum pH value in the rainfall, and the budget of SO/sub 2/ and sulfate material over the diffusion grid. Information on siting and emissions is also required. For this study, siting was based on projected coal use in 1985 and 1990 based on a two-thirds increase in coal production. Results of the modeling for the western United States indicate that the maximum incremental ground-level air concentrations for SO/sub 2/ are 8.4 and 14 ..mu..g/m/sup 3/ for utility and industrial sources, respectively. Maximum predicted incremental ground-level sulfate concentrations for utility and industrial sources are 0.8 and 1.2 ..mu..g/m/sup 3/, respectively. The minimum calculated pH values for both utility and industrial sulfur emission were 5.3. Maximum SO/sub 2/ deposition amounts range from 0.5 to 0.8 gm/m/sup 2/ for both the utility and industrial coal use scenarios. The largest sulfate deposition amounts range from a factor of 55 to 24 smaller than SO/sub 2/ deposition amounts. (ERB)

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81 pages

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Dep. NTIS, PC A05/MF A01.

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  • January 1, 1979

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  • July 5, 2018, 11:11 p.m.

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  • March 6, 2021, 2:51 a.m.

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Sandusky, W. F.; Eadie, W. J. & Drewes, D. R. Long-range transport of sulfur in the western United States. [Projections for 1985 and 1990], report, January 1, 1979; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1211719/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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