Estimating total Pb, Cd, and Zn in contaminated soils from NH₄HCO₃‐DTPA‐extractable levels

References

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• Formerly graduate research assistant and currently Professor, Front Range Community College, and Professor, Colorado State University, respectively.
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• Contribution from the Colorado State University, Department of Agronomy and the Experiment Station, Ft. Collins, CO 80523.
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