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1 <br /> TABLE A-2. AREA 10,MULTIMEDIA EXPOSURE PATHWAY EVALUATION,LANDSCAPE MAINTENACE WORKER SCENARIO <br /> 1NORTH SHORE PROPERTIES <br /> CITY OF STOCKTON HOUSING AND REDEVELOPMENT AGENCY <br /> STOCKTON,CALIFORNIA <br /> Acronym Units Value Toluene Xylenes Hg All Chemicals of Concern <br /> Exposure Parameters* <br /> Soil Concentration Cs mgfkg Chem-Spa — — 3.60E-01 — <br /> 1 Particulate Concentration Ca — - — <br /> mg/m Chem-Spec 1.80E-08 <br /> Exposure point air concentration from groundwater' C. mg/m' Chem-Spa 9.49E-08 2.93E-08 <br /> Ingestion Rale-Adult Ad MGR, mg/day 480 <br /> Ingestion Conversion Factor CF kg/mg LOGE-06 <br /> Inhalation Rate-Adult Ad IR„ m'/day 20 <br /> Skin Surface Area-Adult SA. cm'- 3600 -- -- — __ <br /> 1 Soil Adherence Factor-Adult AF,, mg/an' 0.2 <br /> Dermal Absorption Factor ABS Unitless Chem-Spec LOOE-02 <br /> Dermal Conversion Factor CF kg/mg 1.00E-06 <br /> Exposure Frequency-Adult Ad EF days/year 250 — — -- -. <br /> Exposure Duration-Adult Ad ED years 25 -- -- -- .. <br /> Body Weight-Adult Ad BW kg 70 -- — — -. <br /> Averaging Time-Nonearcinogenic-Adult Ad Ai,,, days 9125 <br /> Averaging Time-Carcinogenic Ata„ days 25550 <br /> Chronic Daily[makes: <br /> GW Inhalation-Noncaucinogenic-Adult GWAd IHL CDI, mg/kg-day Chem-Spa 1.86E-08 5.74E-09 <br /> GIN Ingestion-Noncarcinogatic-Adult GWAd MG CDI. mg/kg-day Chem-Spa -- — — - <br /> - <br /> GWDennal-Noncarcinogenic-Adult GWAd DER CDI_ mg/kg-day Chem-Spa -- — -- _ <br /> 1 Soil Inhalation-Nonearcinogenic-Adult SoilAdINH CDI.. mg/kgday Chem-Spa -- = 3.52E-09 — <br /> Soil Ingestion-Nonearcinogerlic-Adult SoilAdING CDI,,, mg/kg-day Chem-Spa 1.69E-06 <br /> Soil Dermal-Noncaremogenic-Adult SoilAdDER CDI, mg/kg-day Chem-Spa 2.54E-08 <br /> GW Inhalation-Carcinogenic-Adult GWAd IHL CDIc mgfkgd&y Chem-Spa — — — — <br /> GWingestion-Carcinogenic-Adult GWAd MG CD]c mgfkgd.y Chem-Spa — -- — -- <br /> 1 GW Dermal-Carcinogenic-Adult GWAd DER CDic mg(kgd.y Chcm-Spa <br /> Soil Inhalation-Carcinogenic-Adult SoilAdINH CDI, mg/kg-day Chem-Spa <br /> Soil Ingestion-Carcinogenic-Adult SOiIAdING CDI, mg/kg-day Chem-Spa <br /> Soil Dermal-Carcinogenic-Adult S ilAdDER CDI, mg/kg-day Chem-Spa <br /> Toxicity Criteria: <br /> 1 Verified Reference Dose-IHL RID-Inh mg/kg-day Chem-Spa I.IOE-01 2.00E-01 8.60E-05 = <br /> Verified Reference Dose-MG RfD-Ing mgfkgday Chem-Spa 3.00E-04 <br /> Verified Refame Dose-DER' RfD-Der mg/kgdav Chem-Spa 3.00E-06 <br /> Cancer Slope Factor-IHL CSF-Inh (mg/kgdav)' Chem-Spa NC NC NC <br /> Cancer Slope Factor-MG CSF-Ing (mg/kgdav)' Chem-Spa NC NC NC -- <br /> Cancer Slone Factor-DERCSF-Der (mg/kgdav)' Chem-Spa NC NC NC — <br /> ' Noncarcinogenic Hazards: -- -- — <br /> GWHazardQuolients-AdulI-IHL GW Ad HQ-Ihl uuitless Chem-Spa 1.69E-07 2.87E-08 1.98E-07 <br /> GW Hazard Quotients IN Adult-Ing GW Ad HQ-Iqg unioess Chem-Spa 0.00E+00 <br /> GW Hazard Quotients-Adult-Da GW Ad HQ-Der unidess Chem-Spa 0.00E+0o <br /> GWHazard Index-Adult GW Ad HI prides, 1.98E-07 <br /> Soil Hazard Quotient-Adult-IHL Soil Ad HQ-Ihl unilless Chem-Spa -- -- 4.10E-05 4.10E-05 <br /> 1 Soil Hazard Quotient-Adult-Ing Soil Ad HQ-Ing uoitless Chap-Spa — _= 5.64E-03 5.64E-03 <br /> Soil Hazard Quotient-Adult-Der css Soil Ad HQ-Der unitlChan-Spa 8.45E-03 8.45E-03 <br /> Sal Huard Index-Adult Soil Ad HI umitleas 1.41E-02 <br /> Carcinogenic Risks: <br /> GW Risk-MH GW RISK-IHL uniticss Chan-Spa NC NC NC O.00E+00 <br /> GW Risk-ING GW RISK-MG unitless Chem-Spa NC NC NC 0.00E+00 <br /> GW Risk-DER GW RISK-DER unidess Chern-Spa NC NC NC 0.00E+00 <br /> 1 GW Total Risk GW Total RISK tmitlets -- <br /> Soil Risk-INH Soil RISK-IHL unitlms Chem-Spa NC NC NC 0.00E+00 <br /> Soil Risk-ING Soil RISK-ING unitless Chem-Spa NC NC NC O.00E+00 <br /> SoilRisk-DER Soil RISK-DER unilless Chem-Spa NC NC NC O.00E+00 <br /> Sal Taal Risk Sal Total RISK anitlas 0.00E+00 <br /> 'Outdoor air concentration calculated by multiplving volatilization factor by chemical concentration in groundwater. <br /> 'Dermal reference dose and cancer potency factor calculated by dividing respective oral CSF by dermal absorption factor and multiplying RID by dermal absorption factor(ABS)(U.S.EPA,1991) <br /> NA Na an applicable exposure pathway. <br /> NC Na considered to be carcinogenic <br /> Chem-Spa Chemical-specific parameter value. <br /> ' Kilograms. <br /> . <br /> m/dery Cubic macs per derv. <br /> mg/m' Milligrams per cubic mete. <br /> mg(kgd.y Milligrams per kilogram-day. <br /> (mg/kg-day)-' Reciprocal milligrams per kilogramday. <br /> kg/mg Kilograms per milligrams <br /> mg/cm' milligrams per square centimeter <br /> cm square centimeter <br /> 1 <br /> 1 <br /> 1 <br /> 1 SOMA 99�ila Pog Intl 12,99v <br />