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. HEALTH AND HAZARD RISKS SUMMARY FILE Absorption Adjustment Factor for Dermal Exposure to Water {-) MTBE 1 0 1.0 INHALATION DURING SHOWER volume of Bathroom (mA3) 3 00 3 00 Temperature of shower water (C) 48 0 48 0 shower Flow Rate (1/min) 10 0 10.0 Droplet Diameter (cm) 0 100 0.100 shower Droplet Droptime (s) 2.00 2.00 Expp Time For washing Indoorsthr/d] 0 200 0 200 inhal Rate in the shower (mA3/hr) 0 600 0 625 Lung Retention Factor (-) 1.00 1.00 Exp Freq Groundwater (events/year) 350. 350. Exp. Duration Groundwater (years) 6 00 30.0 Absorpption Adjustment Factor for Inhalation MTBE (-) 1.0 1.0 Henry"s Law constant (-) MTBE 2 04E-02 2 04E-02 Molecular weight (g/mole) MTBE 88 88. INGESTION OF IRRIGATION WATER ingestion rate (ml/hr) 50.0 50.0 Exp. Freq Irrigation (events/year) 150. 150 . Exp. Duration Groundwater (years) 6 00 30 0 Absorption Adjustment Factor for ingestion of water (-) MTBE 1.0 1 0 INHALATION OF GW SPRAY width of Sprinkler spray (m) 9 00 9.00 Height of Breathing zone (m) 2 00 2.00 Average windspeed (m/s) 2 25 2 25 Temperature of Irrigation water (C) 25.0 25.0 sprinkler Flow Rate (1/min) 50 0 50 0 Droplet Diameter Sprinkler (cm) 0 200 0 200 Droplet Droptime for sprinkler (s) 5 00 5 00 Time -in sprinkler (hour/day) 2 60 2 00 Inhal Rate outdoors CMA3/h r) 0 830 0.830 Lung Retention Factor (-) 1 00 1 00 Exp. Freq Irrigation (events/year) 150 150. Exp Duration Groundwater (years) 6 00 30 0 Absorpption Adjustment Factor for inhalation (-) MTBE 1 0 1.0 Henry"s Law Constant (-) MTBE 2 04E-02 2 04E-02 Molecular Weight (g/mole) MTBE 88. 88. DERMAL CONTACT WITH IRRIG WATER Total skin surface Area (cmA2) 7.280E+03 2 300E+04 • Fraction Skin Exposed to Water (-} 0 500 0 560 Time in Irrigation water (hour/day) Page 2 2 60 2.00