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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 4 of 5) <br /> RBSLs in Air [µg/m3] <br /> Inhalation of Indoor Air <br /> Residential <br /> RBSL„d a, = <br /> TR x 365 d x 103-8 <br /> ED,x EF,x INH(ind air).x SF„,,, +EDQ x EF,,x INH(znd air),x SF,,*1 yr mg <br /> BW,x ATcm,,. BW.x ATS J <br /> Commercial4ndustrial <br /> RBSL,,,d„r - TRXATxBW, X365 d x103 ug <br /> SF,x EF,x ED,x INH(ind azr), yr mg <br /> RBSLs in Air [µg/m3] <br /> Inhalation of Outdoor Air <br /> Residential <br /> RBSL.,., - <br /> TR x 365 d X10-1 kg <br /> r ED,x EF,x INH(out air),x SF,, +ED.x EF,x INH(out air),x SF,,, yr mg <br /> LBW,x AT.. BW,x AT” ,r JI <br /> Commercial4ndustrial <br /> RBSL — TRxAT�Q,�xBW x365 d x103 ug <br /> °”'a,r — SF,x EF,x ED,x INH(out air), yr mg <br /> H-10 <br />