Environmental Health - Toxic Substances
Processes Affecting the Natural Attenuation of Gasoline in Ground Water -- Galloway Township, New Jersey [Completed]
Gasoline spills from leaking underground storage tanks is the most common mechanism of subsurface point source contamination. Nationwide, leaking underground petroleum storage tanks threaten shallow ground-water supplies and allow gasoline vapors to move into underground structures. A representative regular gasoline spill from a leaking underground storage tank in Galloway, New Jersey, has been the focus of Toxics Program research on regular gasoline. A shallow sand aquifer at the site has been contaminated. Investigators have developed methods to determine the rate at which gasoline degrades to less toxic compounds in the subsurface and to simulate the movement of gasoline vapors in soil using computer models developed specifically for that purpose. These methods are used to evaluate the potential for the natural attenuation and to design remedial strategies for gasoline in the subsurface.
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