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8. Inhalation <br />Airborne particulate sampling was conducted tt,roughout the <br />January through June 1993 period at the location yroximat•v to <br />the northeast property boundary (205) u:;iny a continuouuly- <br />operated high-volume air sampler. Average annual particulate <br />concentrations at this location uere: <br />Unat: O.OOEFO pCi/wt <br />Th230: 3.4b1'_ S kd•i/ws <br />Ra226: "s.GOG-5 pCi/nip <br />Avr_rayr annual partic•ulatr cunc~nt, atiunc: .,1 iha t,e ~: lty,uui~il <br />location proximate to Che west property boundary (206) were: <br />Unat: 3.35E-5 pCi/m3 <br />Th230: 3.95E-5 pCi/m3 <br />Ra226: 4.39E-5 pCi/m3 <br />Subtracting the background concentrations from the yross <br />concentrations obtained at the assessment location leaves <br />net concentrations of: <br />Unat: -3.35E-5 pCi/m3 <br />Th230: -4.70E- 6 pCi/rn3 <br />Ra226: -7.90E- b pCi/m3 <br />Note: Values less than the detection limit uere computed as <br />the LLD value. <br />