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Title: Using stable isotopes of carbon and nitrogen as in-situ tracers for monitoring the natural attenuation of explosives
Authors: Strategic Environmental Research and Development Program (U.S.)
Naval Research Laboratory (U.S.)
Environmental Laboratory (U.S.)
Texas A & M University. Department of Oceanography
Miyares, Paul H.
Reynolds, Charles M. (Charles Michael), 1950-
Pennington, Judith C.
Coffin, Richard B.
Jenkins, Thomas F.
Cifuentes, Luis
Keywords: Carbon-13
Natural attenuation
Stable isotopes
Stable isotope tracers
Explosive ordinance disposal
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 99-18.
Description: Special Report
Abstract: The use of carbon and nitrogen stable isotope measurements from TNT was examined as a possible tool for monitoring the natural attenuation of TNT. Incubation studies of spiked soil samples were conducted. The concentration of TNT and the del (δ) values for 13-C and 15-N of the soil and of TNT were measured with time. Results indicated that no measureable changes in the δ13-C or δ15-N value of the soil or δ13-C values for TNT could be detected as the concentration of TNT decreased. Measureable changes in the δ15-N value of TNT with changing TNT concentration suggested a possible monitoring route. Field studies using both soil and groundwater samples support the laboratory finding that changes in the δ15-N for TNT extracted from groundwater could be detected in samples collected at different points along transects at the Louisiana Army Ammunition Plant and that no measurable change in the δ13-C values for soil or TNT could be seen.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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