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TABLE B-2.AREA 11,MULTIMEDIA EXPOSURE PATHWAY EVALUATION, <br /> LANDSCAPE MAINTENACE WORKER SCENARIO <br /> NORTH SHORE PROPERTIES <br /> E CITY OF STOCKTON HOUSING AND REDEVELOPMENT AGENCY <br /> STOCKTON,CALIFORNIA <br /> Bcnzo(a)pyren <br /> Acronym Units Valuc Toluene a Cr Hexavalent Cr Cu i Hg Vn Zn Sb AB Chem€eais afConcern <br /> Exposure Parameters: <br /> Soil Concentration C5 mng/kg Chem-Spec 3.54E+00 5.07E-02 6.38E+01 9.00E-02 1.03E+02 2.37E+00 5.25E+01 3.61E+02 1.64E+00 <br /> ll Particulate Concentration Cd mglm' Chem-Spec -- 2.54E-09 3.09E-06 4.50E-09 5.17E-06 1.19E-07 2.63E-06 1.81E-05 8.20E-08 -- <br /> Exposure point air concentration from soil' C. mglms Chem-Spec 7.36E-02 -- -- -- __ -- -- y <br /> Ingestion Rate-Adult Ad INGR, mglday 480 - <br /> Ingestion Conversion Factor CF kerng 1.00E-06 - -- -- -- - -" <br /> f Inhalation Rate-Adult Ad IR, m3lday 24 <br /> j Skin Surface Area-Adult SAa cm, 3600 <br /> fj Soil Adherence Factor-Adult AFA n1cm= 0.2 -- -- <br /> ! Dermal Absorption Factor ABS unitless Chem-Spec 1.00E-01 1.50E-01 1,00E-02 1.00E-02 1.00E-02 I-OOE-02 1.00E-02 1.00E-02 LOGE 02 <br /> Dermal Conversion Factor CF kg/mg 1.00E-06 -- -- '- -- "" <br /> l_, Exposure Frequency-Adult Ad EF days/year 250 <br /> I Exposure Duration-Adult Ad ED years 25 <br /> Body Weight-Adult Ad 13W kg 70 <br /> Averaging Time-Noneare(nogenic-Adult Ad At„ days 9125 <br /> Averaging Time-Carcinogenic At,_ days 25550 -- <br /> Chronic Daily Intakes: <br /> Inhalation-Nancaminogenic-Adult AdIHLCDInc mg/kg-day Chem-Spot 1.44E-02 4.97E-10 6.05E-07 8.81E-10 1.01E-06 2.32E-08 5.14E-07 3.53E-06 1.60E-08 <br /> Ingestion-Noncarcinogenic-Adult AdING CDIne mg/kg-day Chcm-Spec -- 2.38E-07 2.90E-04 4.23E-07 4.85E-04 1.1€E-05 2.47E-04 1.70E-03 7.70E-06 <br /> �! Dermal-Noncarcinogenic-Adult Ad DER CDlnc mg/kg-day Chem-Spec 3.74E-06 536E-OS 4.35E-06 6.34E-09 7.28E-06 167E-07 3.70E-06 2.54E-05 1.16E-07 <br /> Inhalation-Carcinogenic-Adult Ad114LMe mg/kg-day Chem-Spec NC 1.77E-10 NC 3.15E-10 NC NC NC NC NC -- <br /> Ingestion-Carcinogenic-Adult Ad ING CDIc mg/kg-day Chem-Spec NC 8.51 E-08 NC 1.51E-07 NC NC NC NC NC <br /> Dermal-Carcinogenic-Adult Ad DER CDIc mVkg-day Chem-Spce NC 1.92E-08 NC 2.26&09 NC NC NC NC NC -- <br /> Toxicity Criteria <br /> Verified Reference Dote-EHL RM-Inh mg/kg-day Chcm-Spec IA0E-01 -- -- -- -- 8.fi0E-05 7.00E-03 2.60E-Q4 5.80E-OS <br /> Verified Reference Dose-ING RED-Ing mglkg-day Chem-Spec 2.00E-01 -- 1.50E+00 3.00E-03 3.70E-02 3.00E-04 7.00E-04 3.00E-01 4.00E-04 <br /> Verified Reference Dose-PER= RID-Der mg/kg-day Chent-Spec 2AOE-02 -- 1.50E-02 3.00E-05 3.70E-04 3.00E-06 7.00E-06 3.00E-03 4.00E-06 - <br /> CancerSlopeFactor-IHL CSF-€nh (mg1kg-day)" Chem-Spec NC 390E+00 NC SAOF+02 NC NC NC NC NC -- <br /> - Cancer Slope Factor-ING CSF-Eng (-WA9-day)_' Chem-Spec NC 1.20E+01 NC 4.20E-01 NC NC NC NC NC <br /> Caner Slope Factor-DER' CSF-Der (mg/kg-day)" Chcm-Spec NC 1.00E+00 NC NC NC NC NC NC NC <br /> Noncarcinogenic Hazards: <br /> ( - Soil Hazard Quotient-Adult-IHL Soil Ad HQ-Ihl onitless Chem-Spec LM F-01 -- -- -- -- 2.70E-04 7.34E-05 1361!02 2.77E-04 1.45E-01 <br /> [� Soil Hazard Quotient-Adult-Ing Soil Ad HQ-Ing unitless Chem-Spec 1.94E-04 1.41E-04 1.31 E-02 3.71E-02 3.52E-01 5.65E-03 1.93E-02 4.28E-01 <br /> Soil Hazard Quotient-Adult-Der Soil Ad HQ-Der unitless Chem-Spec 1.87E-04 -- 2.90E-04 2.11&04 1.97E-02 5.57E-02 5.28E-01 8.48E-03 2.89E-02 6.42E-01 <br /> +.216+00 <br /> Soil Hazard index•Adult Sall Ad Ill unitless <br /> Carcinogenic Risks: <br /> o Risk-IRL RISMHL unittess Chem-Spec NC 6.92E-10 NC 1.60E-07 NC NC NC NC NC 1.61E-07 <br /> Risk-ING RISK-ING unitkss Chcm-Spec NC f.02E-06 NC 6.34E-09 NC NC NC NC NC I.08F.06 <br /> Risk-DER RISK-DER unitless Chem-Spee NC 3.92E-08 NC NC NC NC NC NC NC 1.92E-08 <br /> 666 3.27£-06 <br /> Total Risk TatnIRISK unitless <br /> t Outdoor air concentration calculated by multiplying volatilizaiion factor 4 chemical concentration in groundwater. <br /> r Dermal reference dose and cancer potency factor calculated by dividing respective oral Rfd and CSF by dermal absorption factor(AHS)(U.S.EPA.199€) <br /> NA Not an applicable exposure pathway. <br /> NC Not considered to be carcinogenic <br /> CheSpee Chemical-specific parameter value. <br /> kg Kilograms. <br /> rri/day Cubic meters per day. <br /> med Milligrams per cubic meter. <br /> mg/kg-day Milligrams per kilogram-day. <br /> (- (mg/kg-day)"m Reciprocal milligrams per kilogram-day. <br /> kg/mg Kilograms per mlligaMZ <br /> nwcn? milligrams per square centimeter <br /> cm` square centimeter <br /> 1 <br /> i <br /> 1 <br /> 6 <br /> i ' <br /> 9 ` SOMA9%2210 - page t of 1 12/9199 <br /> ( 1 <br />