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In Situ Stabilization of Soil Lead Using Phosphorus

G.M. Hettiarachchi*,a, G.M. Pierzynskib and M.D. Ransomb

a Remediation and Containment Branch, National Risk Management Research Lab., USEPA, 5995 Center Hill Ave., Cincinnati, OH 45224-1702
b Dep. of Agronomy, Throckmorton Plant Sciences Center, Kansas State Univ., Manhattan, KS 66506-5501



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  		Fig. 1. Bioavailable Pb by the physiologically based extraction test (PBET) for the Dearing material. Bioavailable Pb is expressed as a percentage of bioavailable Pb in the control sample. Means with the same letter within a phase are not significantly different at P < 0.05.

 


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  		Fig. 2. Bioavailable Pb by the physiologically based extraction test (PBET) for the Joplin material. Bioavailable Pb is expressed as a percentage of bioavailable Pb in the control sample. Means with the same letter within a phase are not significantly different at P < 0.05.

 


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  		Fig. 3. Bioavailable Pb by the physiologically based extraction test (PBET) for the Chat material. Bioavailable Pb is expressed as a percentage of bioavailable Pb in the control sample. Means with the same letter within a phase are not significantly different at P < 0.05.

 


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  		Fig. 4. X-ray diffraction (XRD) patterns for the <=10-µm particle size fraction of the Dearing material at 28 d.

 


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  		Fig. 5. X-ray diffraction (XRD) patterns for the PR5000-treated samples of the <=10-µm particle size fraction of the Dearing material at three sampling times.

 




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The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Copyright © 2001 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.