Sorption of Chlorobenzenes to Cape Cod Aquifer Sediments

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Env/rm. Scl. T w . IaS4.28. 890-897

Sorption of Chlorobenzenes to Cape Cod Aquifer Sediments Larry B. Barber, I1 U.S. Geological SuWey, 3215 Marine Street, Boulder, Colwado 80303 7P1S

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Sorption of tetra- and pentachlorobenzene by sediment from a glacial outwash aquifer on Cape Cod, MA, was evaluated. Particle size and mineralogical fractions (separated based on paramagnetic susceptibility) were characterized with respect to sediment organic carbon (SOC), mineralogy, surface area, metal oxide coatings, and spatial variability. SOC increases by a factor of 10as particle size decreases from 5W1000 to