ARCHIVED REPORTS_SITE CHARACTERIZATION REPORT 1999

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TABLE C-5.AREA 15,MULTIMEDIA PATHWAY EVALUATION FOR OUTDOOR SOIL EXPOSURE ' RESIDENTIAL SCENARIO NORTH SHORE PROPERTIES CITY OF STOCKTON HOUSING AND REDEVELOPMENT AGENCY STOCKTON,CALIFORNIA Di-n-butyl All Chemicals Acronym Units Value phthalate As of Concern Exposure Parameters: Soil Concentration Cs mg/kg Chem-Spec 4.45E-01 4.10E+01 -- ' Particulate Concentration C,I mg/m' Ch-Spec 2.23E-08 2.05E-06 _ Ingestion Rate-Child Ch MGR, mg/day 200 Ingestion Rate-Adult Ad INGR, rug/clay 100 Ingestion Conversion Factor CF kg/mg I.00E.-06 - -- -- Inhalation Rate-Child Ch Irc m'/day 15 - -- -- ' Inhalation Rate-Adult Ad IR, .,/day 20 -- - Skin Surface Area-Child SAc emw 2000 - Skin Surface Area-Adult SAa c rr 5800 Soil Adherence Factor-Child AF, mg/cm 0.3 --- --- - ' Soil Adherence Factor-Adult AFA mg/'t 0.08 - -_ Dermal Absorption Factor ABS Unitless ChenrSpec 1.00=E-01 3.00E-02 Deroral Conversion Factor CF kg/mg I.00E-06 Exposure Frequency-Child Ch EF days/year 350 Exposure Frequency-Adult Ad EF days/ycar 350 -- -- -- Exposure Duration-Child Ch ED years 6 - - -- ' Exposure Duration-Adult Ad years - - Body Weight-Child Ch BWW 15 kg IS Body Weight-Adult Ad BW kg 70 Averaging Time-Noncarcinogenic-Child Ch Al„. days 2190 Averaging Time-Noncarcinogenic-Adult Ad AtM days 8760 -- -- - Averaging Time-Carcinogenic Al... days 25550 - -- - Chronic Daily Intakes: - Inhalation-Noncarcinogrnic-Child Cb IHL CDI,,,. mg/kg-day ChertrSpcc 2.13E-08 1.97E-06 Ingestion-Noncarcinugenic-Child Ch ING CDI,,, trrg/kg-day Chem-Spec 5.69E-06 5.24E-04 Dermal-Noncarcinogenic-Child Ch DER CDI,,. rng/kg-day ChenrSpec 1.71 E-06 1.57E-04 - ' Inhalation-Noncarcinogenic-Adult Ad IHL CDlnc mg/kg-day Chern-Spec 6.10E-09 5.62E-07 - Ingestion-Noncarcinogenic-Adult Ad ING CDInc nng/kg-day Chem-Spec 6.10E-07 5.62E-05 Dermal-Noncarcinogmic-Adult Ad DER CDInc mg/kg-day Chem-Spa 2.83E-07 7.82E-06 Inhalation-Carcinogenic-Child Ch IHL CDIc mg/kg-day Chem-Spec NC 1.68E-07 - Inhalation-Carcinogenic-Adult Ad IHL CDIc njkg-day Chco Spec NC 1.93E-07 - ' Inhalation-Carcinogenic-Resident Ra IHL CDIc rtro/kg-day Chem-Spec NC 3.61E-07 - Ingestion-Carcinogenic-Child Ch ING CDIc tngfkg-day Chem-Spec NC 4.49E-05 Ingestion-Carcinogenic-Adult Ad ING CDIc mg/kg-day Chetn-Spec NC 1.93E-05 Ingestion-Carcinogenic-Resident Res Ing CDIc mg/kg-day Ch-Spec NC 6.42E-05 - Dermal-Carcinogenic-Child Ch DER CDIc mg/kg-day Chern,Spec NC 4.04E-06 - nt Deal-Carcinogenic-Adult Ad DER CDIc mg/kg-day Ch-Spec NC 2.68E-06 Dermal Carcinogenic-Resident Res Der CDIc nng(kg-day Chero-Spee NC 6.72E-06 Toxicity Criteria: Verified Reference Dose-IHL RID-Inh nw,/kg-day Chem-Spec LOOE-01 -- - Verified Reference Dose-ING RID-Ing tmglkg-day Chern Spec 1.00E-01 3.00E-04 - Verified Reference Dose-DER I RID-Der rngfkg-day Chem-Spec 1.00E-02 9.00E-06 = Cancer Slope Factor-IHL CSF-Inh (mg/kg-day)-I CherrrSpm NC 1.50E+01 Cancer Slope Factor-ING CSF-Ing (nwAg-day)-I Cheno-Spec NC 1.50E+00 Cancer Slope Factor-DER 2 CSF-Der (mg/kg-day)" Chcrn-Spec NC 5.00E+01 - Noncarcinogenic Hazards: ' Hazard Quotients-Child-IHL Ch HQ-Ihl unitless Chem-Spec 2.13E-07 - 2.13E-07 Hazard Quotients-Child-Ing Ch HQ-Ing unitless Chcr spec 5.69E-05 1.75E+00 1.75E+00 Hazard Quotients-Child-Der Ch HQ-Der unitless Chern-Spec 1.7]E-04 1.75E+01 1.75E+01 Hazard Index-Child Ch HI unitless 1.92E+01 Hazard Quotients-Adult-IHL AdHQ-1h] unitless Chem-Spec 6.10E-09 5.62E-07 5.68E-07 Hazard Quotients-Adult-Ing Ad HQ-Ing unities$ Chern-Spec 6.10E-06 1.87E-01 1.87E-01 Hazard Quotients-Adult-Der Ad HQ-Der unitless Chem-Spec 2.83E-05 8.69E-01 8.69E-01 Hazard Index-Adult Ad HI unitless 1.06E+00 Carcinogenic Risks: Risk-Resident-IHL RISK-IHL uniticss Cb-Spa NC 5.42E-06 5.42E-06 Risk-Resident-ING RISK-ING unitless Chcrn-Spec NC 9.63E-05 9.63E-05 ' Risk-Resident-DER RISK DER un 1-1 Ch-Spec NC 3.36E-04 3.36E-04 Total Risk Total RISK unitless 4.38E-04 Dust concentrations conservatively estimated assuming that the ambient air particulate levels are equal to the National Ambient Air Standard for the annual average respirable portion(PM 10)of 50 ug/m3. I Dertnal reference dose and cancer potency factor calculated by dividing respective oral CSF by dermal absorption factor and multiplying oral RID by dermal absorption factor(ABS)(U.S.EPA,1991) NC Not considered to be carcinogenic Ch-Spec Chenucal-specific parameter value. kg Kilograms. m'/day Cubic meters per day. mg/ni Milligram per cubic meter. trw/kg-day Milligram per kilogram-day. (mg/kR-dav)" Reciprocal milligrams per kilogram-day. kg/mg Kilogram per mlilligram mg/cm` milligrams per square centimeter con` square centimeter SOMA 99-__Ia Pegel oft I"9'99