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VISL Version 3.5 <br /> Updated October 2017 <br /> Current Toxicity Values from June 2017 RSL Update <br /> OSWER VAPOR INTRUSION ASSESSMENT <br /> Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration(SGC-IAC)Calculator Version 3.5 June 2017 RSLs <br /> Parameter Symbol Value Instructions <br /> Exposure Scenario Scenario Commercial Select residential or commercial scenario from pull down list <br /> Target Risk for Carcinogens TCR_SG 1.00E-05 Enter target risk for carcinogens(for comparison to the calculated VI carcinogenic risk in column F) <br /> Target Hazard Quotient for Non-Carcinogens THQ_SG 1 Enter target hazard quotient for non-carcinogens(for comparison to the calculated VI hazard in column G) <br /> Site Sub-slab or Calculated VI <br /> Exterior Soil Gas Indoor Air Inhalation Unit Reference <br /> Carcinogenic VI Hazard Mutagenic <br /> Concentration Concentration Risk Risk IUR Concentration RFCIndicator <br /> Csg Cis IUR Source* RfC Source* <br /> CAS Chemical Name (ug/m3) (ug/m3) CR HQ (ug/rr)-1 (mg/m3) i <br /> x 71-43-2 Benzene 3.0E+01 8.85E-01 5.6E-07 6.7E-03 7.80E-06 I 3.00E-02 I <br /> x 91-20-3 Naphthalene 1.3E+01 3.99E-01 1.1E-06 3.0E-02 3.40E-05 CA 3.00E-03 I <br /> VISL Calculator Version 3.5,June 2017 RSLs Updated October 2017 Page 1 of 1 <br />