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VOC Emissions: <br /> Maximum gasoline usage = 26 . 4 gal/day (from extracted vapors) <br /> Density of gasoline vapors = 6 . 17 Ib/gal <br /> therefore, Maximum usage = 26. 4 gal/day x 6. 17 lb/gal <br /> = 163 lbs/day <br /> ConciI = ( 163 Ibs/day)/[( 1 /379) *(95) *( 160 cfm) *( 1440 min/day)] <br /> = 2823E-06 <br /> = 2823 ppm <br /> As per WHF Environmental Consultants Inc. , the destruction efficiency of the Omni <br /> system will be at least 95 % for hydrocarbon going into the system . <br /> VOC Emissions = 163 lbs/day x (1 - 0 . 95) <br /> 8 . 15 lbs/day <br /> Cone., = (8 . 15 lbs/day)/[(1/379) *(95) *(160 cfm) *(1440 min/day)] <br /> = 141E-06 <br /> = 141 ppm <br /> - NOx, CO, SOI & PM,, Emissions: <br /> The District will use AP 42 Table 3 . 3- 1 (Emission Factors for Gasoline Powered <br /> Industrial Equipment) <br /> Total Emissions = EF lb/ 10' gal * Usage gals/day * ( 1 - Control Eff) <br /> Pollutant Emission Factor (Ib/ 10' gal) Control Eff, Potential to Emut <br /> % (lbs/day) <br /> PM10 6 . 47 0 0. 17 <br /> NOx 102 80 0.54 _ _ <br /> CO 3940 90 10 .4_ <br /> sox 5 . 31 0 0 . 14 <br /> 5 Control efficiency for the catalytic convertor <br /> 6 <br />