Instrumentation Science & Technology 27(1) 1999 XX-YY
.Subsurface Detection of Environmental Pollutants
Alexander Y. Gorshteyn, Ziniviy Kataenko, Sigurdur Smarason, Albert Robbat, Jr.
Department of Chemistry, Tufts University, Medford, Massachusetts 02155
Abstract
The design of an in situ sampling device capable of thermally desorbing organics bound to subsurface soils at depths of up to 20 meters is described. The system consists of a heated transfer line and sampling probe that is hydraulically pushed to depth by a cone penetrometer. Results are presented illustrating the thermal extraction efficiency for polycyclic aromatic hydrocarbons (PAHs). Field tests were conducted under real-world conditions at a vehicle maintenance facility where 50 gal of drums petroleum by-products had been buried. PAH data were collected demonstrating the depth profiling features of the tool.