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RISK AND HAZARD INPUT-OUTPUT SUMMARY, AREA II <br /> Concentration used to calculate hazard index <br /> (Averaged over 7 years or exposure duration, if less than 7 years) <br /> Exposure Duration (years) 6 0 7 0 <br /> MTBE 2 92E-07 2 92E-07 <br /> OOPE-FACTORS-AND-REFERENCE^DOSES <br /> Ingestion slope Factor [1/(mg/kg-day)] <br /> MTBE 1 80C-03 1 80E-03 <br /> Ingestion Reference Dose (mg/kg-day) <br /> MTBE 0 86 0 86 <br /> Inhalation Slope Factor [I/(mg/kg-day)] <br /> MTBE 9 IOE-04 9 lOE-04 <br /> Inhalation Reference Dose (mg/kg-day) <br /> eTr0 $6 0 86 <br /> Dermal slope Factor [1/(mg/kg-day)] <br /> MTBE ND NO <br /> Dermal Reference Dose (mg/kg-day) <br /> MTBE ND NO <br /> SCENARIO <br /> SUMMARY OF RESULTS 1 2 Added <br /> ----------------------------------------------------------------------- <br /> INGESTION OF GROUNDWATER <br /> Daily Doses and Risk for MTBE <br /> CARD (mg/kg-day) 6 86E-05 2 94E-05 <br /> LARD (mg/kg day) 1 058E-08 I2226BE- 08 1 35326E-08 <br /> Cancer Ris <br /> Hazard Index (-) 7 976E-05 3 418E-05 <br /> DERMAL CONTACT DURING SHOWER <br /> . Daily Doses and Risk for MTBE <br /> CADD (mg/kg-day) 3 lOE-07 2 IOE-07 <br /> LAUD (mg/kg-day) 0 OOOE0+00 809000E8+00 1 06000E+00 <br /> Cancer Ris (-) <br /> Hazard Index (-) 0 000E+00 0 000E+00 <br /> INHALATION DURING SHOWER <br /> Concentration in Bathroom Air (mg/MA3) <br /> MTBE 1 51E-02 1 51E-02 <br /> Fraction volatilized from Shower Water (-) <br /> MTBE 0 35 0 35 <br /> Total Mass volatilized per Shower (mg) <br /> MTBE 4 54E-02 4 54E-02 <br /> Daily Doses and Risk for MTBE <br /> CADD (mg/kg-day) 1 16E-04 2 59E-05 <br /> LADD (mg/k day) 9 94E-06 1 lIE-05 2 lOE-05 <br /> Cancer Risk^(-} 9 045E-09 1 010E-08 1914E-08 <br /> Hazard Index (-) 1348E-04 3 010E-05 <br /> INGESTION OF IRRIGATION WATER <br /> Daily Doses and Risk for MTBE <br /> CARD (mg/kg-day) 3 82E-06 6 30E-07 <br /> LARD (mg/k -da ) 5 896E- 10 247860E-10 5 I8076E-09 <br /> Cancer Risk (-} <br /> Hazard Index 4 444E-06 k 7 325E-07 <br /> (-) <br /> INHALATION OF GW SPRAY <br /> ConC in outdoor Air from GW Spray(mg/mA3) <br /> - For carcinogenic risk <br /> MTBE 7 53E-06 7 53E-06 <br /> - For hazard index <br /> MTBE 7 53E-06 7 53E-06 <br /> Fraction Volatilized from Irrig Water (-) <br /> MTBE 0 34 0 34 <br /> • Daily Doses and Risk for MTBE <br /> CARD (mg/kg-day 4 45E-07 7 33E-08 <br /> LADD (mg/k -da � 3 SIE-08 3 14E-08 6 96E-08 <br /> Cancer Risk (-) 3 470E-11 2 860E-11 6 331E-11 <br /> Hazard Index (-) 5 174E-07 8 528E-08 <br /> Page 3 <br />