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Understanding Trace Metal Concentrations in Soils: Insights and Cleanup Strategies

Explore metal concentrations and behaviors in soils, FDEP Cleanup Targets, factors influencing metals, and global trace element ranges. Discover the equilibrium of elements in soils and lithosphere, as well as atmospheric enrichment factors.

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Understanding Trace Metal Concentrations in Soils: Insights and Cleanup Strategies

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  1. Soil processes and trace metals • Have some ideas about metal concentrations in soils • Get familiar with FDEP Soil Cleanup Target Levels • Factors controlling metal behaviors in soils

  2. Concentrations of trace elements in soils • Content of various elements in lithosphere and soils(Lindsay, W. L. 1979. Chemical equilibria in soils. New York, NY, John Wiley & Sons) • Ranges and means of concentrations of trace elements in soils calculated on the world scale(Kabata-Pendias, A. and H. Pendias 1992. Trace elements in soils and plants. Boca Raton, FL, CRC Press.)

  3. Adriano, D. C. 2001. Trace elements in the terrestrial environment. 2nd ed. Springer-Verlag, New York.

  4. JC lecture Plot of the atmospheric enrichment factor (AEF) for some metals where AEF = log (X atm/Al atm)/(X rocks/A1 rocks), versus the boiling points of their oxides

  5. Adriano, D. C. 2001. Trace elements in the terrestrial environment. 2nd ed. Springer-Verlag, New York.

  6. Adriano, D. C. 2001. Trace elements in the terrestrial environment. 2nd ed. Springer-Verlag, New York.

  7. Adriano, D. C. 2001. Trace elements in the terrestrial environment. 2nd ed. Springer-Verlag, New York.

  8. JCB lecture

  9. Fig. 15. Trace elements in soils compared to their abundance in the lithosphere. Open circles= mean in lithosphere; Solid circles= mean in topsoils; Vertical lines=Soil range • Trace elements < 1,000 ppm • Some are enriched • Concentrations vary Kabata-Pendias and Pendias (1992)

  10. EF< 0.5 • significant depletion • EF= 0.5-2no change • EF>2-10 • some enrichment • EF>10 • strong enrichment Sposito, 1989

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