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3 <br /> d Mr Seyed Sadredin <br /> January 19 1994 <br /> j Page 2 <br /> Mass emission rate (lbs/day) is calculated as follows <br /> Ibs = gram x pmole moles 103mg <br /> day mole mole I06pmotes gm <br /> * 1 195 mole * 2 2046 * 10-41b * 60mrn * ft 3 * 24hr <br /> CF@60°F Mg hr mm day <br /> or <br /> lbs = p mole * ,ft 3 * 3 83 x 10' <br /> day mole min <br /> where gram/mole = molecular weight (assumed to be 100 or C7) <br /> u mole <br /> PPmav <br /> mole <br /> s = 100 <br /> min <br /> Concentrations of hydrocarbons in the extracted soil vent gas and catalytic oxidizer outlet <br /> were determined by collecting a tedlar gas bag sample and analyzing the sample (see attached <br /> results) <br /> • <br /> 7429%CORRESPj428AIFLDEC <br />