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TABLE 3-8 <br /> CHRONIC AND SUBCHRONIC RtDs AND SLOPE FACTORS <br /> FOR POTENTIAL CSELMCALS OF CONCERN <br /> CALTRANS SHOP 10, STOCKTON, CA <br /> Subchronic Chronic Slope EPA Weight <br /> Exposure RfD RfD Factor of Evidence <br /> Compound Route (mg/kg-04D (mg/kg-day) _(mg/kg:4 -t CateM <br /> Benzene Inhalation ND ND 2.9E-02° A <br /> Ingestion ND ND 2.9E-02• A <br /> Ethylbenzene Inhalation ND 2.9E-01° ND D <br /> Ingestion ND 1.0E-01° ND D <br /> Toluene Inhalation ND LIE-01° ND D <br /> In estion 2 0E+M 2.0E-01' ND D <br /> Xylene Inhalation ND 2.0E-01° ND D <br /> Ingestion ND .OE+M ND D <br /> MME Inhalation <br /> _ Ingestion <br /> Sources <br /> a Verified, available on IRIS <br /> b Health Effects Assessment Summary Tables 1994 <br /> ND = Not Determined by EPA <br /> EPA Weight of Evidence Categories A = Human Carcinogen, B = Probable Human Carcinogen, C = Posszfied <br /> Human Carcmo en, D = Not Classtfied <br /> I <br /> • <br /> sheet 1 of 2 <br />