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.. �� '� ;S• :''he.. * r A :,'i t - t..- ' C IM- 0 <br /> MiN � -_ <br /> ry <br /> To calculate the }- the concentration is <br /> pounds (lb) per da <br /> multiplied by the volume o£ air produced in one day. <br /> The reports the Concentrations (C) of the air sampling in <br /> Theliter. The first step is to convert this value to lbs/c£ <br /> lab repor <br /> (pounds per cubic foot) - x 28.321/cf = 0.0000006211b/c£ <br /> ug/1 x 0.000001glug x 0.0022051g/9 <br /> The volume of air produced in one day, equals the flow rate (4 )x <br /> the time of flow. <br /> V = Q x T = c€/day = cf/minx 1440min/day <br /> The volume is corrected to standard temperature and pressure <br /> (STP) . <br /> p = Pressure 14.7 lb/int 9 STP <br /> V Volume of <br /> T = Temperature in degrees above absolute Zero = 491_58oR B. STP. <br /> Using the Ideal Gas Law P1V1/T1 p2V2/T2 <br /> Solving for V2 =Pp21T214?711b/int, P cancels from the equation <br /> Assuming P1 - <br /> leaving V2 VlT2/Tl. <br /> V1 = Q Cf/m x 1440 min/day <br /> T2 - 491.58oR <br /> T1 = 459.58 + ToF at sight. <br /> V2 Q cf/min x4ntemperature.andRpTessure + To?) <br /> Q2 = Flow rate at standard <br /> V2 = Q2 cf/min x 1440 min/day <br /> Q2 = Q cf/min * 491.58oR/(459.536 + ToF} <br /> X lb/day = C ug/1 x 0. <br /> 0000000621 lb 1/ug Cf x Q2 cf/min x <br /> 1440 min/day <br /> s. please call <br /> If you have any question (916) 668-5300. <br /> Sincerely yours, <br /> -- --- ---- Jack <br /> George L. Converse Ca. Reg. Geologist. #3037 -- <br /> Project Geologist <br /> alth <br /> cc: Ctrs. Diane Hinson, Sean Joaquin County He <br /> Quality . <br /> Ali athman, San Joaquin.County tir <br /> r:-. page 7 <br />