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RISC Manual Version 4 0 <br /> Table H-1. Equations Used to Calculate Tier 1 Risk-Based Screening Levels <br /> (RBSLs)—Carcinogenic Effects <br /> (Page 2 of 5) <br /> RBSLs in SUBSURFACE SOIL [mg/kg] <br /> Inhalation of Outdoor Air <br /> Residential and CommerciaMdustrial <br /> RBSL _ RBSLo,t„T X10-3 mg <br /> sun awl — <br /> VF. t, Ng <br /> RBSLs in SUBSURFACE SOIL [mg/kg] <br /> Inhalation of Indoor Air <br /> Residential and CommerciabIndustrial <br /> RBSLmd air _3 mg <br /> RBSL.t,a carr = x 10 <br /> VFsnp µg <br /> RBSLs in SUBSURFACE SOIL [mg/kg] <br /> Leaching to Groundwater and Ingestion of Groundwater <br /> Residential and Commercial4ndustrial <br /> RBSL9W <br /> RBSL�,b..oar - LF,, <br /> If the RBSL calculated for subsurface sod exceeds the saturated soil <br /> concentration, Com,, the target risk cannot be exceeded for any concentration <br /> and "SAT" is entered in the "RBSLs" worksheet The equation used to <br /> calculate Cm is defined in Table H-4 <br /> H-8 <br />