Date of Award

Summer 1975

Document Type


Degree Name

Master of Science (MS)


Ocean & Earth Sciences



Committee Director

Donald D. Adams

Committee Member

Peter F. Fleischer

Committee Member

Billy T. Upchurch

Call Number for Print

Special Collections LD4331.O35H358


Sea-water samples from the Norfolk, Virginia area were analyzed for trace volatile organic compounds by helium sparging. Contents of the trap were injected into a gas chromatograph/mass spectrometer. Analysis of the trap contents indicated the presence of aliphatic and olef1nic hydrocarbons containing up to six carbon atoms and eight halogenated compounds of up to two carbon atoms in length. The halogenated compounds which were identified were dichlorofluoromethane, trichlorotrifluoroethane, carbon tetrachloride, chloroform, trichloroethane (2 isomers) bromodichloromethane, and chlorotrifluoroethylene. The

relative concentrations of volatile organic compounds generally tended to increase in samples collected from water prone to urban environmental pressures. All eight halogenated compounds were detected in the Elizabeth River while six were detected in the Chesapeake Bay waters at generally lower relative concentrations. Seven of the halogenated volatile organic compounds seemed to originate from man-made or man-induced sources.


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