An atmospheric—terrestrial heavy metal transport model. I. model theory

A general model TOHM was developed to predict the terrestrial fate of zinc, cadmium, chromium, lead and mercury emitted by the operation of a coal-fired electric generating facility. The general model consisted of interfacing submodels describing atmospheric dispersion, precipitation, soil chemistry...

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Bibliographic Details
Published in:Ecological modelling 1979, Vol.6 (3), p.253-272
Main Authors: Wagenet, R.J., Grenney, W.J., Wooldridge, G.L., Jurinak, J.J.
Format: Article
Language:English
Subjects:
environmental science
natural resource management
pollution
soil management
soil resource management
soil resources
soil science
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Summary:A general model TOHM was developed to predict the terrestrial fate of zinc, cadmium, chromium, lead and mercury emitted by the operation of a coal-fired electric generating facility. The general model consisted of interfacing submodels describing atmospheric dispersion, precipitation, soil chemistry, and soil erosion. The models were developed from input data from a semi-arid region of the southwest United States, and except for the climatic and topographic constraints, are not site specific. TOHM was found to predict no substantial increase in indigenous levels of zinc, chromium and lead in the impact (deposition) area. However, both mercury and cadmium were predicted to be emitted and eroded to the environmental sink (receiving lake) in concentrations exceeding that naturally present in the system. TOHM is currently unvalidated, though comparison of soil erosion predictions with erosion quantities measured in the impact area gives good agreement.
ISSN:0304-3800
1872-7026
DOI:10.1016/0304-3800(79)90015-2