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Table 1: Equations Used to Develop Soil Screening Levels for the Direct Contact Pathways <br />for a Residential Exposure Scenario <br />(page 2 of 3) <br />Noncarcinogenic (Hazard) — Residential <br />Incidental ingestion of soil <br />THQx BVV„ x AT „ xED x 365d/yr <br />C res-sol-nc-ing <br />EFr x ED <br />1 <br />x x x 1E — <br />6kg <br />RfDo mg <br />Inhalation of particulates and volatiles <br />THQx ATo, x x365d/yr <br />C res-sol-nc-inh <br />1day x x 1 x 1 VF + EFr x ED, ET <br />24 hours RfC PE Fr <br />) <br />Dermal contact with soil <br />THQx BW, xAToc x ED, x365d/ yr <br />C res-sol-nc-der = 1 EF, x ED x , x SAS, x AF, x ABS, x 1E —6 kg <br />(13fDo x GIABS) mg <br />Total <br />C res—sol—nc—tot = <br />S Lres—sol—nc—ing S Lr es—sol—nc—inh S Lres—sol—nc—der <br />1 <br />1 <br /> 1 <br />12