Elemental Contents of Plants Growing on Soil‐Covered Retorted Shale Academic Article uri icon


  • The concentrations of several potentially toxic elements were determined in plants growing on various depths of soil covering retorted (Paraho) shale. The F levels were elevated in some of the plants growing on 30 cm of soil over shale. The concentrations of Mo and the Cu/Mo ratios in the plants indicate that molybdenosis could be expected with livestock grazing on revegetated plants. Increasing the depth of soil cover reduced Mo levels, but the second year's data indicate that increasing the soil depth may only temporarily reduce the potential molybdenosis problem. The plant levels of Pb, Co, Cd, and Hg were below analytical detection limits. The plant concentration of Ni, As, Se, B, and Cd were too low to be of environmental concern.

published proceedings

  • Journal of Environmental Quality

author list (cited authors)

  • Schwab, A. P., Lindsay, W. L., & Smith, P. J

citation count

  • 7

complete list of authors

  • Schwab, AP||Lindsay, WL||Smith, PJ

publication date

  • July 1983