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Main Title Transport and Transformation of Hexavalent Chromium Through Soils and into Ground Water.
Author Puls, R. W. ; Clark, D. A. ; Paul, C. J. ; Vardy, J. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;ManTech Environmental Technology, Inc., Ada, OK. ;Coast Guard, Elizabeth City, NC.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/315;
Stock Number PB94-197597
Additional Subjects Soil contamination ; Ground water ; Path of pollutants ; Reprints ; Water pollution ; Land pollution ; Environmental transport ; Aquifers ; Soil chemistry ; Chemical analysis ; Chemical reactions ; Saturated flow ; Unsaturated flow ; Saturated soils ; Adsorption ; Reduction ; Iron oxides ; Amorphous materials ; Subsurface flow ; Subsurface drainage ; Hexavalent chromium ; Chemical speciation ; Unsaturated soils
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NTIS  PB94-197597 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 24p
Abstract A detailed characterization of the underlying and adjacent soils of a chromeplating shop was performed to provide information on the extent of soil and aquifer contamination at the site on the potential for off-site migration and environmental impact. Intact, moist cores were obtained from more than 40 different locations, resulting in more than 200 discrete samples for total metal analysis, selective extraction tests, and adsorption-reduction experiments, to assess the chemical speciation and distribution of chromium on the contaminated soils and its leaching potential. Surface analytical techniques were also used to determine chemical speciation and to further elucidate mineral fractions responsible for retention of the chromium on the soils and sediments. Adsorption and reduction capacities of the saturated aquifer sediments were variable and low, while the unsaturated soils' reduction capacities were much greater and were correlated with depth (decreasing capacity with increasing depth). The soils' adsorption and reduction capacities were eventually overwhelmed, however, and permitted the passage of Cr(VI) into the underlying ground water. (Copyright (c) 1994 AEHS).
Supplementary Notes Pub. in Jnl. of Soil Contamination, v3 n2 p203-224 Jun 94. Prepared in cooperation with ManTech Environmental Technology, Inc., Ada, OK. and Coast Guard, Elizabeth City, NC.
NTIS Title Notes Journal article.
Title Annotations Reprint: Transport and Transformation of Hexavalent Chromium Through Soils and into Ground Water.
Category Codes 68C; 68D; 99F
NTIS Prices PC A03/MF A01
Primary Description 600/15
Document Type NT
Cataloging Source NTIS/MT
Control Number 425927438
Origin NTIS
Type CAT