ARCHIVED REPORTS_SITE CHARACTERIZATION REPORT 1999

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TABLE A-5. AREA 10,INGESTION AND DERMAL CONTACT EXPOSURE PATHWAY EVALUATION, ' RESIDENTIAL SCENARIO NORTH SHORE PROPERTIES CITY OF STOCKTON HOUSING AND REDEVELOPMENT AGENCY STOCKTON,CALIFORNIA Acronym Units Value Hg All Chemicals of Concern Exposure Parameters: Soil Concentration Cs mg/kg Chem-Spec 3.60E-01 -- Particulate Concentration C,I mg/m' Chem-Spec 1.80E-08 -- Ingestion Rate-Child Ch INGR, mg/day 200 Ingestion Rate-Adult Ad MGR, mg/day 100 -- -- Ingestion Conversion Factor CF kg/mg I.00E-06 -- ' Inhalation Rate-Child Ch Irc m'/day 15 -- -- Inhalation Rate-Adult Ad IR, m'/day 20 Skin Surface Area-Child SAc cru 2000 Skin Surface Area-Adult SAa cm'- 5800 -- -- Soil Adherence Factor-Child AFc mg/em'- 0.3 --- --- Soil --- Soil Adherence Factor-Adult AF,, mg/cm, 0.08 -- Dermal Absorption Factor ABS Unitless Chem-Spec I.00E-02 Dermal Conversion Factor CF kg/mg I.00E-06 Exposure Frequency-Child Ch EF days/year 350 -- - - ExposureFrequency-Adult Ad EF days/year 350 -- -- ' Exposure Duration-Child Ch ED years 6 -- -_ Exposure Duration-Adult Ad ED years 24 Body Weight-Child Ch BW kg 15 Body Weight-Adult Ad BW kg 70 -- -- Averaging Time-Noncarcinogenic-Child Ch At_ days 2190 -- - Averaging Time-Noncarcinogenic-Adult Ad At_ days 8760 -- -- ' Averaging Time-Carcinogenic At_ days 25550 -- -- Chronic Daily Intakes: Inhalation-Noncarcinogenic-Child Ch IHL CDI_ mg/kg-day Chem-Spec 1.73E-08 -- Ingestion-Noncarcinogenic-Child Ch ING CDI, mg/kg-day Chem-Spec 4.60E-06 -- Dermal-Noncarcinogenic-Child Ch DER CDI, mg/kg-day Chem-Spec 1.38E-07 -- Inhalation-Noncarcinogenic-Adult Ad IHL CDlnc mg/kg-day Chem-Spec 4.93E-09 Ingestion-Noncarcinogenic-Adult Ad ING CDlne mg/kg-day Chem-Spec 4.93E-07 -- Dermal-Noncarcinogenic-Adult Ad DER CDlnc mg/kg-day Chem-Spec 2.29E-08 -- Inhalation-Carcinogenic-Child Ch IHL CDIc mg/kg-day Chem-Spec NC -- Inhalation-Carcinogenic-Adult Ad IHL CDIc mg/kg-day Chem-Spec NC Inhalation-Carcinogenic-Resident Res IHL CDIc mg/kg-day Chem-Spec NC Ingestion-Carcinogenic-Child Ch ING CDIc mg/kg-day Chem-Spec NC -- ' Ingestion-Carcinogenic-Adult Ad ING CDIc mg/kg-day Chem-Spec NC -- Ingestion-Carcinogenic-Resident Res Ing CDIc mg/kg-day Chem-Spec NC Dermal-Carcinogenic-Child Ch DER CDIc mg/kg-day Chem-Spec NC -- Dermal-Carcinogenic-Adult Ad DER CDIc mg/kg-day Chem-Spec NC -- ' Dermal Carcinogenic-Resident Res Der CDIc mg/kg-day Chem-Spec NC =_ Toxicity Criteria: Verified Reference Dose-IHL RfD-Inh mg/kg-day Chem-Spec 8.60E-05 Verified Reference Dose-ING RfD-Ing mg/kg-day Chem-Spec 3.00E-04 Verified Reference Dose-DER' RfD-Der mg/kg-day Chem-Spec 3.00E-06 -- ' CancerSlope Factor-IHL CSF-Inh (mg/kg-day)" Chem-Spec NC =_ Cancer Slope Factor-ING CSF-Ing (mg/kg-day)-I Chem-Spec NC Cancer Slope Factor-DER' CSF-Der (mg/kg-day)` Chem-Spec NC Noncarcinogenic Hazards: Hazard Quotients-Child-IHL Ch HQ-Ihl unitless Chem-Spec 1.73E-08 1.73E-08 Hazard Quotients-Child-Ing Ch HQ-Ing unitless Chem-Spec 1.53E-02 1.53E-02 Hazard Quotients-Child-Der Ch HQ-Der unitless Chem-Spec 4.60E-02 4.60E-02 Hazard Index-Child Ch HI unitless 6.14E-02 6.14E-02 Hazard Quotients-Adult-IHL Ad HQ-Ihl unitless Chem-Spec 4.93E-09 4.93E-09 Hazard Quotients-Adult-Ing Ad HQ-Ing unitless Chem-Spec 1.64E-03 1.64E-03 Hazard Quotients-Adult-Der Ad HQ-Der unitless Chem-Spec 7.63E-03 7.63E-03 Hazard Index-Adult Ad HI unitless 9.27E-03 9.27E-03 Carcinogenic Risks: Risk-Resident-IHL RISK-IHL unitless Chem-Spec NC 0.00E+00 Risk-Resident-ING RISK-ING unitless Chem-Spec NC 0.00E+00 Risk-Resident-DER RISK-DER unitless Chem-Spec NC 0.00E+00 ' Total Risk Total RISK unitless --- 0.00E+00 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. NC Not considered to be carcinogenic ' Chem-Spec Chemical-specific parameter value. kg Kilograms. m'/day Cubic meters per day. mg/m' Milligrams per cubic meter. mg/kg-day Milligrams per kilogram-day. (mg/kg-day)" Reciprocal milligrams per kilogram-day. ' kg/mg Kilograms per milligrams mg/cm" milligrams per square centimeter cm` square centimeter Page I oft