Abstract: A method developed for the extraction of polychlorinated biphenyls (PCBs) from bituminous materials and subsequent analysis using electroncapture gas chromatography is presented. The procedure is tested by spiking asphalt ...

Abstract: Approximately 110 billion gallons of gasoline, as a motor fuel, are used in the United States each year. Nearly every gallon is at some time stored underground without environmental regulation. Hundreds of thousands of ...